ECOLOGICAL REPORT 12/20/1988
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ECOLOGICAL REPORT
FOR
QUANTUM CORPORATE PARK
BOYNTON BEACH, FLORIDA
AMENDMENT #3
DECEMBER 20, 1988
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THIS REPORT IS AN AMENDMENT TO THE ORIGINAL
ECOLOGICAL REPORT DATED AUGUST 4, 1986, AS
AMENDED ON MARCH 16, 1987, AND AS AMENDED
ON JANUARY 5, 1988.
AMENDMENT #3
DECEMBER 20, 1988
I NTRODUCTl ON
It Is Important as we contInue the long term development of Quantum
Corporate Park that there be a c I ear understand I ng of the Deve I oper' s
Intentions and responsibilIties, as well as those that he must interface
wIth at each of the varIous controlling agencies.
The contInued
discussion of factors Impacting decisIons wIth respect to Sand Pine
Scrub, have clouded a number of the specIfic requirements of the
Development Order with recommendatIons that tend to unjustly expand the
original requirements.
The Developer has taken the posItion steadfastly, since their
acquisition of the property, that they are dedIcated to the pres~rvatfon
of 40 acres of Sand Pine Scrub on the property known as Quantum
Corporate Park.
Consistent with that cOllYTlltment Is the Developer's
be 1 i ef that the Deve I opment Order runs with the I and and trldt a II
subsequent land owners and developers of property withIn Quantum
Corporate Park are bound by the same requirements and restrictions of
the Development Order. The Importance of thIs distinctIon is that the
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ent I re land area of Quantum Corporate Park has not and wi II not be
del/eloped at this time. The indil/ldual tracts remain undel/eloped.
Many of the Del/e 1 opment Order requ I rements are keyed to del/e I opment
since that Is the appropriate time for decision making relatll/e to those
parcels of land. We continue to present this argument and, therefore.
ask you. withIn the further discussions of this amendment. to delay some
of your final decIsions with respect to Sand Pine Scrub. until specifIc
lots Including such scrub areas are del/eloped.
The presentatIon of this amendment begins with a restatement of portions
of the Del/e I opment Order and hopefu 11 y a clear de II neat I on of exact 1 y
what the Del/eloper's responsibilities are at this Juncture. Fol lowing
that clarifIcatIon Is a discussion of mlcrosltlng - the procedure that
will be ut Illzed to both ensure the preserl/at Ion of scrub areas unt 11
the mlcrosltlng has been finally delineated. and also. an Identification
of the procedure to be ut 11 I zed I n I dent I fy I ng those areas. F I na II y.
the rema f nder of the amendment w I II be a narrat II/e that fo II ows the
questions raised In Mike Busha's letter of ~arch 9. 19BB.
DEVELOPMENT ORDER CONDITION #6
"(6lThe Del/eloper shall preserl/e In I/Iable conditIon a minimum of
forty (40) acres of Sand Pine Scrub canopy, understory and
groundcover vegetat Ion. Pr lor to convnencement of any c I ear I ng
activities. the Developer shall survey the site to determine the
numbers and distribution of any populations of the Gopher Tortoise.
Florida Burrowing Owl. FlorIda Gopher Frog. Florida Mouse. and
Florida Scrub Lizard which occur. Sand Pine Scrub Preserve area(s)
shall be of appropriate size. quality and arrangement to maintaIn
all populations of the species. A preservation plan shall be
developed which: (a) identifies and delineates the boundaries
of Sand Pine Scrub habitat areas to be preserved; (b) provides for
the effective relocation Into preserve area(s) of any populatIons of
the species of concern listed above whIch occur outside the preserve
area(s) limits; and (c) provides a management program for the Sand
Pine Scrub Preserve area(s) whIch will provide and maintain suitable
habitat for the species of concern whIch exist or are relocated Into
the prea(s).
The above plan shall be submitted to the City of Boyntor, B.::ach.
FlorIda Game and Fresh Water Fish Convnlsslon. Department of Natural
Resources. and the Treasure Coast Regional Planning Counei I. No
development shall occur until the plan has been approved by all of
the responsIble agencies and the animals are relocated In accordance
with the approved plan."
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To begin with, the Developer has. compiled completely with some of the
requirements of Condition #6 as follows: Prior to the commencement of
any clearing activities, the Developer did survey the site, presented It
to the applicable agencies, received approval of the surveys, and
relocated animals with respect to the conditions Imposed within a sub-
area of the 40 acre northern preserve (Preserve Area #1). Such sub-area
Is still contaIned within the 25.7 acre preserve as Incorporated In our
current Master Site Development Plan and dedicated under our plats for
continued preservation.
Next, the Developer has developed a Preservation Plan which accomplishes
the following:
a) The plan Identifies and delineates by survey and legal
description the boundaries of the two Sand Pine Scrub areas that
will be preserved.
The tota I area of such preserves Is 40
acres. The Development Order does not contain any provision
that these areas be fenced or otherwise des I gnated on the
property. The additional delineation of Sand Pine areas in the
amount of 12 acres wi II be Identified on specific development
tracts as they are developed.
b) The plan that has been developed provided for the effective
relocation Into the preserve area of the populations of species
of concern listed within Condition #6 that were discovered as
part of the site survey. The animals were relocated In
accordance with the directions of the Game and Freshwater Fish
Con.nlsslon as Identified In the previoUSly approved copy of the
Ecological Plan.
c) The Developer has provided a management program for the northern
Sand Pine Scrub Preserve area wh I ch w f 11 provl de and I1Id I nta I n
suitable habitat for the species of concern which exist or are
relocated Into the area.
It Is a Developer's belief that through compliance with Sections
A, B, and C of the Preservation Plan that they have, In effect,
fully completed the requirements of the Preservation Plan,
except for the final delineation of the additional 12 acres of
scrub yet to be defined In the mlcrosited areas. If, for any
reason, you disagree with that position, It Is Important that we
discuss It Immediately.
The final paragraph of Condition #6 requires that the Preservation Plan
be submitted to the applicable agencies for approval and that no
development shall occur until the plan has been approved by all agencies
and the animals were relocated In accordance with the approved plan.
Both of these requirements have been fulfilled, and an approval to begin
clearing was received. Since approval, It was determined that
additional scrub other than what was provided within the preserve must
be IdentifIed. However. It was never determined that the relocation of
species of concern was Invalidated by such discovery, Furthermore. the
preserve area within the northern section of Quantum Corporate Park was
ma I nta I ned at 25.7 acres to spec I flea 11 y a 11 ow appropr I ate areas for
such species. Again, since we have fully complied with the requirements
for the Preservat Ion P I an, we see as our on I y respons I b i 1 ity the
establishment of 12 acres of mlcroslted Sand Pine Scrub area; not as a
habitat for endangered species, but as an area to provide for our
requlremenc to preserve 40 acres of Sand Pine Scrub.
There are a few other specifics with respect to the Development Order
language that are necessary to view closely so that a proper
Interpretation of the mlcroslted areas can be made.
a) In the first paragraph of Condition #6, the Development Order
states that "Sand Pine Scrub Preserve areas shall be of
appropriate size, quality, and arrangement to maintain all
populations of these species". Since the only requirefn"nt for
size, quality, and arrangement have to do with the mair,tenance
of endangered species, we do not think stringent requir6ments on
the mlcroslted areas were contemplated by this Develor~ent Order
condition. It must be remembered that all relocated species
have been moved to the 25.7 acre preserve at the north end of
the park.
b) I t must be po I nted out that the Preservat ion P I an ca 1 I ed for
under Condition #6 has to do with the plan that preserves the
species of concern listed In the first paragraph of the
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cond I t I on, (1.) U,E: plan f1eo::ded to be deve 1 oPE:d SuLl, t hi.Jt it
Id,mtlfled the boundaries. of the habitat areas t,) be pr~s~rved;
(2.) provided for tho:: effE:ctlve reloc..tion Into the p'berVE:
popu I at ions of the SPE:C I es and; (3. ) pro v I ded i.J ITi,,".j~em~nt
program for the Sand Pine Scr ub Preserve wh I ch 101 III pr (.v I dt' arlu
maintain suitable habitat for the species of concern. It is
clear that the Preservation Plan has to do wltn pr~s,.rvlng ..
haLlitat for the species of concern rather them an "'''~istem
containing specific plar,b and soi Is.
c) Finally, we must note under Item C of Condition #6 lJ,at the
rE:gu I rement I s for a ffiilnagement program, not for d ~f.J"C I f i c
management plan. Wo: interpret the difference LeinSI that ..
management program out I ines the kinds of thing; ttl",t wi II be
done, how they shou I d be under.taken, and wI,O 51"0.11 d be
responsible. We don't bel ieve a management pro';jI""m gds into
spec I f I c cost est i ITi.:.tes for undertak I ng act Ions ye"r" I n the
future, nor the Identification of methods of p"YllIents fe,r SUCtl
act I v I ties, on I y the fact that I n order to manag~ U." I,..>b i tat
such th I ngs wi i I be undertaken at the direct I on of c0ln~let ent
supervisory control and that the responsibility to Carry It out
is clearly dedicated and undertaken by the Propel ty Owners
Association, as Identified In the Protective Cov"nants already
recorded for Quantum Corporate Park.
HICROSITING AS ADDRESSED WITHIN THE ADA
The Boynton Beach Park of Commer ce (nk/a) Quantum Park at tJuyr,t(,r, !:ledet-oj
ADA Is fUlly Incorporated Into the Development Order pur,uant to
Condition #1 of the Development Order. Pages 41 and 42 of App"ndi" 18-
A-I have been included herein for your reference. On pdQe 42.
conclusion and recommendation #7 reads as follows:
(7)* "At least 251. of the existing undisturbed Sana Pir,e Scrub
Vegetation (32 acres) at the eastern edge of the propert~'. ,,"J .ilJst
northwest of 22nd Avenue. be preserved by .iud I c lous ;; it i ng of
bui Idlngs on the various lots in this parcel (see m"I'-" Ii ,,',cJ /i--J).
.Note:
Preservdtion of tnis portion of the S"nd Pin" Scrub
vegetat Ion sha II ue the r.espons I b II i ty of the Pr ,-,per t II (Jwr,ers
Association and an Archlt",ctural Review Committee.
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As we all know, the final requir-",ment, as stated In t1,,,, D",vel"pment
Oraer, was the preservation of 40 acres, of Sand Pine ScruL. within
Quantum Corporate Park. _ It Is Important to note, however. thal frum the
ear Ilest phases of Sand Pine preservation discussion. tile i ror""t ion.
wer-e to allow mlcrosltlng of Sand Pine on specIfic de-,eI oprr"",L lots.
Hore particularly, It was also noted that the portion of S<lnd Pir,e Scrub
that would be preserved on individual building lots would be (Wtermlned
at the time buildings were sited on such lots and development c.f such
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lots were to take place.
Furthermore, It was determined that the
Property Owners AssQclatlon and the ArchItectural RevIew Committee would
be the appropriate bodies to be Involved In such delineation of
mlcroslted areas when such parcels developed. This process, as endorsed
by the Development Order, Is what we plan to follow In the completIon of
this project.
HICROSITING OF 12 ACRES OF SAND PINE SCRUB
The Developer cannot gIve up Its flexibilIty with respect to microsltlng
Sand Pine Scrub areas until such time as Individual tracts of land are
developed.
Therefore, micros I tes cannot be f dent I fled at th is time.
However, to assure all agencies that appropriate scrub Is retained In
the undeveloped areas (on development tracts) In excess of 12.0 acres,
we have submItted herewith an existIng record of the additional Sand
PIne Scrub that exists at this time. Included herewith Is ii 200 scale
aerial photograph and tract map delIneating those areas of remaining
Sand Pine Scrub. Furthermore, Quantum Corporate Park hereby agrees to
submit an area tract map on a quarterly basis Identifying those
potential Sand Pine Hlcrosltes that stIll exIst and those that have been
delIneated withIn development site plans as preserve areas that shall be
held In preservatIon In perpetuity. The tract map wI II be submitted
quarter 1 y unt I I such t I me as the add I t I ona I ) 2 acres of Sand Pine
Hlcrosltlngs have been dedicated. The tIme of dedIcation and acceptance
wIll be at the completion of lot development so that no danger of
destroying dedicated Sand Pine could occur during lot development.
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Each quarterly submission of the tract map wi 11 be relllewed with the
Forester of the City of Bovnton Beach for tt,elr concurrence. anLl tt,en
submitted to the Treasure Coast Regional Planning Council for their
concurrence.
In addition to the microslted areas of existing scrub there k,s been,
and will continue to be, a pOlicy held by Quantum Corporat" Park
dellelopers to allow and encourage dellelopers of Indillidu'll sit"s to
replant landscape areas witt, scr.ub lIegetatlon. Througt, tim", a, such
scrub areas fully develop, the developer may wish to pet it iun Treasure
Coast Regional Planning Counci I to approve such areas "s Sai,J Pine
Hicrosite areas.
Since It is Impossible to consider all of the variations of soi Is and
plant materials that may be Inllollled In this type of ree;lamat iun and
Sand Pine reestab I i shment, our proposa I I s to mere I y I eall" tt,e Lkc i s i on
concerning the scrub's viability to the City Forester and Treasure Coast
Regional Planning Council at the time such petition Is m.:>de. Gillen that
flexlbi I itv, decisions about such replanted areas and the 4 dLTes of
scrub ff ngers a 1 ready planted can be I eft to a t I me that tt,e I r- II i db i I I ty
is assured by on-site Investigation after establishment of lIegetdtion.
RESPONSE TO HICHAEL BUSHA'S LETTER TO CARHEN ANNUNZIATO DATED HARCH 9.
1988
The following convnentary attempts to provide a complete explanation for
those Items requested In Hichael Busha's letter of Harch 9. 1988. Some
of the Items that have been requested fall outside the responsibilities
of the Deve I oper as 1 I sted I n the Deve 1 opment Order Cond I t Ions #6 and
#9. Wherever we could comply with these additional requests, we have
willingly. With respect to other reconvnendatlons or suggestions that
add specIfic complIcations to the completion of our work, we regret that
we cannot readily comply with all of these. A detai led review Is as
follows:
Under the wetland and littoral zone plan, we have Incorporated Into
our attachments a number of Items which we bel ieve wi 11 fully
clarify the questions raised In this section of the letter. We have
included boundary surveys of both of the existing preserved
wetlands. Including therewith reports for the exotic removals within
those wetlands and their ongoing management plans. both approved by
the DER under theIr permIt conditions. Additionally we have
submitted a set of drawings which show the complete plant list and
planting plans for all of the lakes within the park Identifying the
littoral zones and hardwood swamp areas. The plans are depleted In
such a way that they are tied directly Into the Haster Site
Development Plan. approved In February of this year.
The second paragraph of Page 2 of Hr. Busha's letter addresses the
lack of surveyed locations of microslted scrub areas. The preceding
Information Identifying "Conclusion and Recommendations" of the ADA
Indicates that surveyed locations of microslte areas are not
appropriate until Individual tracts have been approved for
deve 1 opment. Furthermore. we have proposed wa I t I ng unt 11
development on these tracts is complete and a survey of actual
remaining scrub Is made. as a means of greater assurance.
A case In point is our first development site. Publ Ix Super
Harket/Dlstrlbution Center. which has retained a 20' strip of Sand
Pine Scrub on their easternmost boundary. Upon completion of the
site. which should occur In February or Harch of next year, It Is
the Intention of the Property Owners Association to Investigate the
Sand Pine Preserve area. review It with the City of Boynton Beach
Forester. and have It delineated as a Preserve Hlcrosite area. At
that time, a legal description and survey of the area wi II be
prepared.
With respect to Identifying those scrub areas whiCh are options for
mlcrosltlng, please refer.to the enclosed tract map that Identifies
all areas of existing Sand Pine Scrub on the site. All of these
areas will remain until such time as the Individual lots are
developed. Prior to the cOlMlencement of any clearing beyond what
was done for the Infrastructure Improvements (completed at this
time), a site plan approval and permit must be obtained from the
City of Boynton Beach. This process Is the control by which the
Deve 1 oper and the Quantum Corporate Park Property Owners
Association assures that no additional Sand Pine Scrub will be
cleared without the express permission of the City and the
Developer, and such permission will only be given with a complete
understanding that a 12 acre area of potentla1 mlcrosltlng stilI
exists within the Quantum Corporate Park site.
Paragraph #3 on Page 2 of the letter discusses the reduction of the
northern preserve area from 40 acres to 25.7 acres. The size of the
existing preserve was determined based upon animal relocation. We
apprec I ate Treasure Coast. s pos I t I on that the reduct Ion does not
affect the relocated populations and have pursued confirmation of
such position from Joan Diemer of the Florida Game and Freshwater
Fish Commission. Hs. Diemer has received the enclosed letter from
us requesting official confIrmation of these facts.
Paragraph #3 on Page 2 of the I etter I nd I cates that add I t I ona 1
gopher tortoise burrows were observed on tracts not being developed
at this time within Quantum Corporate Park. Please be aWdre that
the park Is surrounded by lands that have a relatively high
occurrence of gopher tortoise burrows. When we trapped and
-relocated all of the gopher tortoise on our 562 acres to the 25 acre
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preserve, we opened considerable area for Intrusion of gopher
tortoIse from bordering properties. We expect this IntrusIon to
contInue. Under the requIrements of the Development Order, we have
surveyed and trapped the InItial populations In accordance with the
requirements. All animals were relocated to the 25.7 acre preserve
area. In the future development of Individual parcels, the
Developer, whether It be Quantum Associates or someone who has
purchased land from us, has a responslbl I Ity to deal with the
endangered species In concert with the Development Order. However,
the park Deve I oper does not contemp I ate any further an I ma I survey
nor relocation as part of the Infrastructure Improvement.
In the final paragraph of Page 2, there Is discussion concernIng
what requirements there are wIth respect to Sand Pine management.
The Development Order clearly requIres the Developer to prepare a
management program which will provide and maintain suitable habitat
for the species of concern. We feel the plan already submitted
appropriately carries out the mIssion. However. in the interest of
mak I ng I t more comprehens I ve, we have asked our consu I tant to
elaborate on the management of these areas and he has done so.
Included herein Is the Resource Management Plan for the Sand Pine
Scrub Preserves and 2 dated 13 of December, 1988. S I nee the
Management Program required by the Development Order has been geared
towards maintaining scrub habitat for endangered species, It is not
our Intent to prepare a Management Plan for the mlcroslted areas.
Page 3 of the letter under Management Plan Goal, lists the first
goal as long term maIntenance of vegetative diversity. Although
this may be desirable, It Is not clear that this Is a requirement of
the Developer under the Development Order. The second part of the
plan goal, Longterm Provision of SuItable Habitat for Endangered and
Threatened Species, again, this Is clear that It Is a Developer
responslbfl Ity In the Development Order and we have appropriately
addressed It. Item #3 in the Management Plan goal Is the scrub
soils preservation. This again is not a specifIc requirement of the
Deve I opment Order. A I though these I terns are not spec I f I c
requ I rements of the Deve I opment Order, we have endeavored to keep
them utmost In our consideration In the preparation of our
Management Plan.
Of the Items A through F requested In the letter, Items A. Band C,
considering the caveats just expressed, are discussed in detail In
the Resource Management Plan for Sand Pine Scrub Preserve #1 and #2,
Quantum Corporate Park.
Item D. You have requested an est I mate of the tota I cost of
Implementing the proposed Habitat Management Plan, inCluding
personnel required. We are unaware of what costs might be since
they are so dependent upon adjacent deve I opnlent at the time of
management procedures. They are also highly Influenced by changes
In codes and other laws which affect the procedures. A current
estimate In 1988 dollars Is $11,300.00.
Under Item E you've asked for the entity responsible for
Implementation of the proposed Management Plan. Again, there Is
only a management program, and the entIty responsible for carrying
out the program and delineation of the specIfic plan that ties with
the timIng and the adjacent development, Is the Quantum Corporate
Park Property Owners Association.
Under Itern F, the Instrument which provides reasonable assurance
that the fInancial and institutional ability to carry out the
commitments Included In the Management Program exists, Is the
Quantum Corporate Park Covenants which have been recorded as part of
the plat approval process for Quantum Corporate Park. A copy of
such Covenants are Included herein.
The first paragraph of Page 4 of Mr. Busha's letter discusses the
rei lef of mlcroslted areas, should additional Sand Pine Scrub be
created elsewhere on the property. Consistent with my comments
earlier, I agree with Mr. Busha's position that Sand Pine Scrub
creation experiments cannot be approved until a criteria Is
established. However, I thInk the appropriate formation of the
crIterIa depends upon the witness of a successful creation
experIment. We feel It Is appropriate to address this Item when we
have areas that are felt by our consultant to be appropriately
considered as Sand Pine Scrub.
At that tIme, the prevaIling
defInition of Sand PIne Scrub can be used to evaluate It.
WIth respect to the last paragraph of Mr. Busha's letter, it has
been much more effIcient for us to specifically respond to the areas
of concern raised by the Treasure Coast Regional Planning Councl I
rather than revisiting the areas of the prevIously developed plan.
I trust that the plan, as presented herein, addresses all existing
concerns and can bring us to a speedy approval of the document and
Implementation of the remainder of the plan.
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ENCLOSURES
I. Letter from George Zimmerman to Joan Dlerner at the FlorIda Game &
Freshwater Fish CommIssion dated December 21, 1988.
2. Boundary surveys of the two wetlands.
3. The Wetland Exotic Removal Plan and Managernent Plan as prepared by
Don RIchardson, (get dates)
4. Ten blueprint drawings Indicating the lake plantlngs for the
littoral zones and the hardwood swamps. The plans have been
prepared so that they tie-In completely with the approved Master
Site Development Plan.
5. Boundary survey of Sand PIne Preserve Area #1.
6. Boundary survey of Sand Pine Preserve Area #2.
7.
Resource Management Plan for Sand PIne
#2, dated 13 December, 1988
Consultants/Donald Richardson, PhD.
Scrub Preserve Areas #1 and
prepared by Ecological
B, Aerial photograph at I" " 200 scale taken at the completion of
clearIng for the Infrastructure development of Quantum Corporate
Park. The date of the photograph is October, 1988.
9. A coordinated tract map at I" " 200 scale that Indicates the two
Sand Pine Preserve areas and the remaIning Sand Pine Scrub areas
that can be potentIal mlcroslted areas located within tracts yet to
be developed at a later date,
10. Pages 41 and 42 of Append I x 18-A-1 of the Boynton Beach Park of
Commerce (N/K/A Quantum Park at Boynton Beach) ADA. These pages are
Included and Incorporated Into the Development Order pursuant to
ConditIon 'I of the Development Order.
11, A copy of 111 chae I Busha's I etter to Mr. Carmen Annunz I ato dated
March 9, 1988.
12. Quantum Corporate Park Protective Covenants
..,.
R~lll\' "In "'nrl LluJc:rJale DUin:
QUANTUM
CORPORATE
PARK
December 21, 1988
Ms. Joan Dlerner
Florida Game & Freshwater Fish Commission
4005 South Main Street
Galnsevllle, Florida 32601
Re: Endangered Species Location - Quantum Corporate Park
Dear Ms. Diemer:
We are currently trying to finalIze all of our Ecological approvals wIth
the CIty of Boynton Beach and the Treasure Coast RegIonal PlannIng
Council. It has come to our attention that you have never responded In
writIng concerning our last Master Plan change approved by the CIty of
Boynton Beach In February, 1988. Treasure Coast has asked that you
respond concernIng the reductIon In sIze of the northern preserve area
from 40 acres to 25.7 acres, and the IntroductIon of a new preserve area
of 14.3 acres In the southern portIon of the sIte.
To refresh your memory, the change In Sand Pine Preserve areas did not
requIre any further relocation of animals, and all anImals remaIned In
the areas Into whIch they were orIginally located. These facts are
substantIated by the orIginal anImal contaInment fence and the
subsequent monItoring reports prepared and dIstrIbuted to you by
Ecological Consultants (Don Richardson).
Our understandIng, that comes from discussions with Don, is that you are
In accord with the animal relocations and the reconfigured Sand Pine
Preserve. We would be grateful If you could confirm such to the
Treasure Coast Regional Planning CouncIl and copy ourselves and Carmen
Annunziato at the City of Boynton Beach with your communication.
Thank you for your assistance.
Very truly yours,
, <!j,t )!.( It). ZL;ILIIl{
GEORGE W: ZIMMERMAN
Vice President of Development
1 /llrO\../'
((l..(liL J
GWZ:aem
(dlemer)
CC: Mr. Michael J. Toll
Mr. Carmen Annunziato
Mr. MIchael Busha
Mr. Donald Richardson
David S. Pressly, Esq.
The 110 Tower. 21st Floor. 110 Southea'il Sixth Slreet . Fort Lauderdale, Florida .1.1301-3-11:)
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ECOLOGICAL CONSULTANTS
7301 SUMMERBRIDGE DR.
.
III May 1988
Mr. Mike Toll
Quantum Associates
2455 East Sunrise Blvd,
Sui te 11116
Ft. Lauderdale, FI, 333B4
Re: Exotic removal in non-
jurisdictional wetlands.
Dear Mike:
TAMPA, FL 33614
(813) 866-4266
Enclosed is a revised copy of the exotic removal protocol
for the 6 acres of non-jurisdictional DER wetlands located L c:-;':
northwest portion of the project. If you have any quest~ons,
please give me a call.
Sincerely, ~~ ~
,tf'd/ ~
Donald Richardson, Ph.D.
DRR/jlr
~
ECO OGICAL CONSULTANTS
7301 SUMMfABAIDGf DR.
TAMPA. FL 33814
(813) 886.4288
III May H88
Hr. Rich Bude11
Florida Department of Agriculture
Room 2118B
Mayo Building
Tallahassee, Fl. 32399-11811"
Re: Exotic Removal proposal for
Quantum Park, Boynton Beach.
Dear Mr. Budell:
Enclosed is a revised copy of the exotic removal protocol
for the 6 acres of non-jurisdictional DER wetlands located in tp~
northwest portion of the project. As we discussed on the
telephone, please send me written approval for use of Arsenal
within Florida wetlands. A copy should also be sent to Mr. Mark
Latch, Bureau of Permitting, DER. If you have any comments or
require changes, please indicate on your copy or in a letter..
Thank you for your cooperation.
Sincerely,
~~~L_/-
Donald RiChardson, Ph.D.
DRR/jlr
EXOTIC REMOVAL FROM NONJURISDICTIONAL WETLANDS WITHIN
THE QUANTUM PARK DEVELOPMENT, BOYNTON BEACH.
. Rev heCl
As specified in the Department of Environmental Regu~~tin"
Permit '591268889 under Specific Conditions Numbers 5 and 6, cl!
exotic vegetation will be removed from the wetlands and replante~
with hardwood swamp species. Specific item Number 6 requires the
locations, numbers anCl species of plants that will be removed anCl
a list of those to be installed. The following report details a
plan to remove the existing punk trees (Melaleuca quinquenervia)
from both wetlands.
After a close examination of both systems, the sQuthern
wetland (2.2 acres) is dominated by two dense stands (0.11 acres)
of punk trees on the northwest corner and western edge. A
smaller group of trees were also found within a 20 foot hand
along the southeast and eastern edges of the wetland.
As per the requirements established within the Development
Order, most of the fringing Melaleuca trees (ca. 361) were
removed from the wetland.
Each tree was removed from the berm
with a front end loader and a chain.
This would preclude the
need for heavy equipment in the wetland since the peat laye~~
exceed 4 feet in many areas.
The dense stands required special consideration since they
extend out into the wetland beyond the limits of the heavy
equipment. A berm was constructed out into the wetland several
meters in order to reach the southern extent of the Melaleuca
head. The trees were also removed as indicated above. All berm
~
<:
/
materials w~re removed to existing grade to allow germination
from existing seed sources. Under the present water conditions,
most of the naturally occurring herbaceous species "rOL'l~
germinate from the existing muck layers.
Isolated trees within the wetland (ca. 89 saplings) will l)t;
treated with the herbicide, Arsenal. This herbicide was
requested for use at Quantum Park by the Florida Department of
Agriculture. Arsenal has been used effectively for control of
Melaleuca and Brazilian pepper within Florida. Prior to the
treatment of isolated Melaleuca trees, the water table within the
wetland will be slightly lowered to within a few inches of the
muck layer or applied during spring drought conditions. All
treatments will be administered so that no herbicide reaches the
water table. Application to Melaleuca will be done 113ing t'J".
frill/girdle technique as indicated in the Supplemental La~Bll~b
report (EPA SLN No. FL-871111II) for Arsenal. Since most of the
trees are less than 6 inches in circumference, ~pproximately 511'
of the bark will be removed and a cut made into at least two
growth rings. Undiluted Arsenal will be brushed into each cut.
Re-application may be required for those trees that a:~ n~~
killed during the first treatment.
The above protocol for exotic removal would require the
installation of some hardwood tree species. Understory ferns and
herbs will recolonize these areas within several months. Only in
areas which do not respond to natural germination will wax myrtle
(Myrica cerifera), dahoon holly (~cassine) or red bay (persea
palustris) be installed.
3
All trees (3 gallon nursery grown
stock) will be installed on 10 foot centers or in small clumps to
simulate the natural landscape. Approximately 48 trees would be
required based on the 0.11 acres of Melaleuca removed. Aftmr ~h=
area has been cleared of Melal euca, any exposed soil will be
lowered to grade elevations in order to prevent Brazilian pepper
coloniZiltion,
The 3.8 acre wetland adjacent to the City Park is dominateq
by 0.20 acres of dense Helaleuca. Host of the existing Melaleuca
trees (ca. 300-500 trees including saplings) occur in the
southwest corner of the site and average 3-8 inches dbh, becoming
smaller to the east. The remaining trees are located in a small
stand in the northeast corner of the site.
To date, the dense stands of Melaleuca as referenced a~'ovs
have been removed from the wetland.
Isolated trees will be
trea ted us i ng the fr ill/g i rd Ie techn i que as described in the
Supplemental Labeling report for Arsenal.
A copy of the
Supplemental Labeling report for Arsenal has been included in
this report.
The same precautions regarding surface ~'ater
conditions will be followed for this wetland during the treatment
phase of the project.
The natural vegetation of this wetland is dominated by
several herbaceous species and scattered wax myrtles.
As stated
above, no herbaceous planting would be initiated unless natural
recruitment does not occur.
Approximately 89 trees will be
installed in the former Melaleuca areas. A mixture of wax rnj:tl~
,
/'
-~-
4
(Myrica cerifera), red bay (persea palustris) and dahoon holly
(~ cassine) will be planted on III foot centers or in small
clumps to simulate natural swamp development.
There has been some discussion suggesting that a possible
alternative would be to completely remove the wetland and repla~~
with native species.
Muck layers in these wetlands exceed j_~
feet in thickness; thus requiring some form of de-mucking for
removal of the exotics,
The muck would later have to be
installed to proper elevations and replanted with both oath,..,
trees and herbs.
This type of exotic removal may stimu:i::~~
Melaleuca establishment in the wetlands and therefore, a poor
altenative to preservation of an already functioning wetla-nd.
A maintenance program would be initiated to curtail possible
exotic recruits or to further retreat those trees that might not
have been killed during the initial treatment with herbici.<:le.
Since this herbicide will be applied during low water and by
hand, death the other woody species will be held to a minimal
level.
Maintenance will occur every 60 days in order to treat
new seedlings or to retreat saplings that were not killed during
the first application.
All monitoring reports will be submitted to the deve' ~,'(lr~
of the property for submittal to the required ~g&nc~~~.
Monitoring will occur semi-annually for the first and seconu
year.
Monitoring reports will include percent mortality of
treated exotics, percent cover by natural wetland species, and
4
survival data on planted trees.
Color photographs will be used
to document the elimination of exotic species from the wetlands.
All Melaleuca trees were removed from the wetlands by the
Ryan Corporation, Trees were placed in piles and allowed to dry
for several weeks. All Melaleuca will be burned on site in large
earthen pits supplied with forced air to reduce carbon formatior
and smoke.
This method has been excellent to contro~ .'1""C'.f"'
problems which may affect local neighborhoods or Inters~a~~
traffic.
/
5
I
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I
(EPA REG, ~O, 241-273) _.;..._.__.._
I
. --. L
__...... .:.~~EPA SlN N'O. FL-870011n~___ ___
-_..-~
FOR DISTRIBUTION AND USE
ONLY WITHIN FLORIDA
,
I
I
\
-. .
-"- .-
,
FOR CONTROL OF MELALEUCA AND BRAZILIAN PEPPERTREE
IN NON-CROP IN THE STATE OF FLORIDA'
ACTIVE INGREDIENT:
Isopropylamine salt of Imazapyr (2-[4,5-dihydro-4-methyl-4-(1-methylelhyl)-5.oxo-1 H-im'
Idazol.2.yl]-3.pyridinecarboxylic acid)'. . . . . .. . . . . . . . . . . . . . ... . . . . ... . . . . . . . . . 27.6%
INERT INGREDIENT. . . ... .. .. . . . ... .. . . ... . . . . . . . . . . .. . . .. . . .. . .. . .. . . . . . .. _72.4%
TOTAL.. . . . . .. I" . . . . . ............... . .. . . . . . . . . . . . . ... . . ... . .. . . .... ... .. .. 100:0C'/CI
'Equlvalonllo 22.8% 2-14.5-<lIhydrll-+molhyl-4-(l.molhylolhyll'S-ox,;,' H-lmidazol.2-Ytj:"3-pyridi,,_xylic ocid
ot 2 pounds acid por gallon.
,....
~.;,.:
'---DIRECTIONS 'FOR USE" - - - --/ FRILUGIRDLE TFf.EATMENTS
It Is a violation ollederallaw to use this product Using a hatchet or machete, rhake cuts through the
In a manner Inconsistent with Its labeling. bark and completely aroundtti'e tree with no mOle
ARSENAL- herbicide Is recommended lor the than 3 inch intervals betwee~.cut edges. The cut
control 01 Brazilian peppertree (5ch/nus lere. should angle downward e~t~nding into the cam.
b/nlhilollus) and Melaleuca (Mela/euca qu/quene,.. bium enough to expose atl~t two growth rings.
v/a) In non-crop in Rorida. All treatments should be Using a spray applicator or til'Ush, apply a solution
made only during the annual dry season and only containing undiluted ARSENI\L into each cut until
when surface water conditions are In compliance . thoroughly wet. Do not apply so much herbicide
with those specified on this label In the Instructions that runol1to the ground or water occurs. Do not
lor use lor a particular application method. Do not . make this type 01 application lithe tree is in flowing
apply this material In any manner not specified on water. The site 01 the cut should be one foot abovfl
this label. Do not apply to runoff. the expected level 01 the suliace water il standing
or flowing water Is anticipated at the site within 00ll
_L _ __ _ _. .__ _.__ week. On smaller trees (4' to 6' circumference) cut
INJECTION TREATMENTS." . on both sides 01 tree (I.e. 59% of circumference)
Using standard Injection equipment, apply 1 milll-. ~nd apply undiluted herbicide' as described above.
liter 01 undiluted ARSENAL solution at each injec-' . . . --- ---......
lion site around the tree with no more than 3 inc~ . : HELD S
Intervals between cut edges. Insure that the inlec, . ~ LOW.VOLUME HAND- PRAYER
tor completely penetrates the bark at each site. I~ . APPUCATIONS
standing or 1I0wlng water Is present or expected ARSENAL herbicide may be applied using back-
within the next week, the Injection sit. should be a~ pack. knapsack and other pump-up type pressure
least one loot above the average waler level. It no sprayers used to direct application to tree foliage.
standing or flowing water Is presen or expected Thoroughly mix a 1 percent solution of ARSENAL
within the next week, the Injection sites should be !n vegetation to be controlled with the spray solu-
near the ground level when using tubular injector tion. DO NOT make this type of application il the
equipment. or at waist height when using the tree is In standing or Ilowing water. DO NOT over
HYPO. HATCHET Injector. apply causing runol1lrom the treated foliage.
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hlll
RESOURCE MANAGEMENT PLAN FOR SAND PINE
SCRUB PRESERVE '1 AND '2, QUANTUM PARK,
BOYNTON BEACH, FLORIDA.
13 December 1988
by
Donald Richardson, Ph.D.
Ecological Consultants
7301 Su~nerbridge Drive
Tampa, Florida 33614
2
Introduction
As per the Development Order proposed by the Treasure Coast
Regional Planning Council and the City of Boynton Beach,
approx imately 40 acres of sand pine scrub vegetation was set
aside as a nature preserve within the Quantum Park (DRI) project.
Since most of the scrub within the above referenced proj8ct had
been severely disturbed by sporadic understory cle"ring and
livestock graZing, the said 40 acres was divided Into two
disjunct sand pine preserves (Figure 1). preserve.l i:; located
north of N.W. 22nd Avenue and contains about 25.7 aCh,S of sand
pine scrub and abandoned dry prairie/pine flatwoods habitats
(Figure 2). Approximately 14 acres of this site is dominated by
sand pine scrub vevegation. Preserve 12 is located west of High
Ridge Road and south of N.W. 22nd Avenue and includes a mixture
of 13.0 acres of sand pine scrub and 1.3 acres of disturbed
grassland (Figure 3).
The remaining 12 acres of sand pine scrub needed to meet the
40 acre requirement will be selected from extant scrub dreas and
recreated or reclaimed scrub landscapes (Amendment .)).
The purpose of this report is to define the proposed
management philosophy and methodology for longterm preservation
of these two preserve sites.
BASIC MANAGEMENT PHILOSOPHY
The objective of the resource management plan is to
preserve, through management, a representative sample of an
original Florida ecosystem, thereby maintaining the natural
3
diversity of both plants and animals.
RESOURCE DESCRIPTION
PRESERVE n
Disturbances to plant communit ies have long been v iewed as
an outside threat to the normal functioning of the cOim.hlllity. In
the sand pine scrub community, the resilency of most of the
indicator species has been attributed to recovery vi" sprouting
from preexisting root stocks, as very few species in the scrub
recover via seed (i.e., Ceratiola ericoides and Pinus C'l~).
The vegetation of the preserve area is charact0rized as
young or early successional sand pine scrub with scatt0red areas
of dry prairie/pine flatwoods. A total of 119 plant sp0cies (41%
are obi igate to sand pine scrub) have been observed IHthin the
preserve (Table 1). Although clearing of the llnderstory and
thinning of the sand pine occurred prior to 1983, community
recovery is rapidly occurring.
The overstory trees are dominated by widely spaced sand pine
(Pinus clausal (138 trees per acre) of at least two diUerent age
classes (10-20 years and 20-35 years). Tree core data from
established permanent plots indicates that the avera~e age of
sand pine is 18.34 years old, with the oldest trees (19-36 years)
in the northeastern corner of the preserve. There were no trees
greater than 38 years, however, hundreds of young sapling are
scattered throughout the preserve. Trees vary in size from 2.7-
36.7 cm dbh, reaching heights of 37-46 feet.
The shrub layer is dominated by widely spaced scrub oaks
4
(Quercus myrtifolia, Quercus geminata), Palafoxia feayi,
jo intweed (Polygonella polygama) and scrub mint (Conradina
grandiflora). Average stern densities were highest for myrtle oak
(93.8 sterns per 5 x 5 m quadrat) and sand live oak (79,8 sterns
per 5 x 5 m quadrat), while average height was 21.3 - 6B.5 em.
One year from the initial sampling effort, stem densities
slightly decreased for both species of oaks, but shuwed some
increase for jointweed (Polygonella polygama) and Palaf".ia feayi
in the permanent sampling plots.
Changes in shrub stern densities over time for the Quantum
Park scrub communities is consistent with other scrubs in south
Florida.
Recent data collected from III year fj"ld plots at
Jonathan Dickinson State park indicate that scrub species
composition remains fairly constant in mature scrub, however,
stem densities in oaks shows a 2-3 fold increase.
Changes in
shrub densities within the preserve may not change much over the
next few years since most of the understory was reduced to the
ground surface in 1983.
Seed inputs from existing Gaks will
require longer intervals before new seedlings can be detected.
The overall diversity is much higher than compared with
other mature scrubs or other areas within Quantum Park
(Richardson et al. 1986).
Except for the oaks, other
characteristic shrubs have begun to germinate in the open areas
of the preserve.
These shrubs include rosemary (Ceratiola
ericoides), rusty lyonia (Lyonia ferrugineal, scrub mint
(Conrad ina grand i flora), tallowwood Ix imenia amer icana), and
\
__ ____L_
5
jointweed (Polygonella ciliata and !:.:. gracilis).
probably the most dramatic change in the shrub 1"yer has
been the establ ishment of Ceratiola. Rosemary often does not
germinate until 2-5 years postfire, and its seedlings do not
reach reproductive maturity for la to 15 years. To ,jilte, more
than 25 2 year old shrubs have been observed throughout the
preserve area.
Johnson (1986) has shown that stand blomass
increases slowly from 2 to 4 years, rapidly from 4 to 10 years
and less rapidly between 10 and 35 years.
The herbaceous component of the preserve area is represented
by 92 species, including a large proportion (35%) of w<:ed species
that have colonized disturbed areas (i.e., brush piles, trails
and even gopher tortoise mounds). The most common herbs include
broomsedge grass (Andropogon virginicus), ~~ r<:trorsus,
Dichanthel ium sabulorum, innonence (Euphorbia pOlyph\'lIa), and
hairsedge (Bulbostylis ciliatifolia). Average pelcent cover for
the 8 permanent 1 x 1 m2 plots was 34% in 1987 and 3a% in 1988,
showing a slight decrease which was largely attributed to a loss
of broomsedge grass from the plots. Even though the percent
cover decreased from 1987 to 1988, the number of species within
the 4 sampling plots increased from 15 to 19. This change was
due to an increase in the number of scrub endemics that have
germinated throughout the preserve. Some of the mor" notable
species include Bulbostylis, Lechea, Euphorbia, Dichanthelium,
Aristida, Croton, and Liatris.
Ruderal components have invaded the margins of the preserve
6
due to past disturbance from livestock. Several horses Qnd goats
from the adjacent property have periodically enl0red the
preserve. This has resul ted in some areas be i ng (""nip letel y
denuded from horses rolling in the sand for insect prutection.
Also the adjacent properties have been disturbed for such a long
time that the ruderal components are well establ ished and
potential seed banks are high.
SCRUB FINGERS OF PRESERVE 41
Approximately 4 acres of sand pine scrub was created in an
effort to increase the total number of acres within the sQnd pine
preserve. A soil mulching technique utilized by the phosphate
industry was used to recover 4 acres from former sand pine scrub
slated for development on the project. To date, the
establishement of scrub vegetation on these newly created ridges
has been slow because of invasion by local pasture grdsses and
weeds, drought, and localized disturbance from livestock. With
time, these areas within the preserve will eventually become
recognizable scrub in the early stages of development and may be
used to el iminate an equi valent amount of scr ub frum other
commercial lots within the project. However, sinc€: scrub
reclamation is in its infancy, this process may take fniiny years
before these areas are acceptable to all parties involved.
PRESERVE 12
Historically, this tract of scrub vegetation shares a
similar background with the preserve north of N.W. 22nd Ave. in
that the understory was cleared in the early 1980's. What's
7
interesting about this 14 acres is that regeneration of aand pine
has been prolific. This indicates that the type of mechanical
disturbance used to clear the understory vegetation in this
portion of the scrub caused less disturbance of soil profiles
when contrasted with the area to the north or coodit Ions were
more favorable for seed dispersal and/or germination.
Most of the area north of N.W. 22nd Ave. was cleared with a
root rake which caused severe mechanical disruption and
alteration of soil profiles. This type of clearing tends to
remove a vast amount of underground roots and corms whIch would
normally germinate with time. It appears that the 14 acres south
of the N.W. 22nd Ave. was mowed, raked, or bulldozed in a
slightly different fashion since many more endemic species and
sand pine have germinated over the past 5-6 years.
The site is dominated by sand pine (p inus cIall:>a) which
range in size from 15-41 em dbh reaching heights of 16-11 meters.
Most of the trees lean to the west because of oftahore sea
breezes. Tree core data indicates that most of the liJrger sand
pine range in age from 21-45 years (Table 2). Exi:>ting sand pine
densities within the preserve average about 45 trees per acre.
Sand pine recruitment from ex isting seed bank reserves and
periodic release by mature trees has been prolific for this
scrub. Seedling densities range from 280 to 340 trees per acre.
The shrub layer is dominated by scattered sand live oak
(Quercus geminata), rosemary (Cerat.iola ericoidesl, Palafoxia
feayi, jointweed (Polygonella polygama), saw palmetto (Serenoa
8
repens), and scrub mint (Conradina grandifloral (Table 3). A
large portion of the tract is covered with a dense m21t of love
vine (Cassytha filiformis) which has killed many scrub mints.
Most of the young rosemary appear to be about 3-5 years old based
on nodal counts.
The herbaceous layer is composed of wiregrass (Aristida
gyrans), silkgrass (Pityopsis graminifolia), scrub sedge
(Rhynchospora megalocarpal. hai rsedge (Bulbostyl is c i IL;~l i folia) ,
sand spike moss (selaginella arenicola), Dichantheliurn sabulorum,
prickly pear cactus (Opuntia humifusa), llatal grass
(Rhynchelytrum repens), broomsedge grass (Andropogon :J....!C5!inicus).
and sawbriar (Smilax auriculatal (Table 3).
Within the sand pine scrub preserve, approximately 1.3 acres
along the western edge of the site (Figure 2B) is best classified
as ruderal vegetation. It appears that these areas were once
utilized as dump sites for building and residential debris.
These areas support a thick grass layer composed of several weedy
or exotic species. The dominant species include bal1ia grass
(paspalum notatum), broomsedge grass (Andropogon viryinicus),
natal grass (Rhynchelytrum repens), wild grape (Vitis
munsoniana), and pokeweed (Phytolacca americana). Other
associates include dogfennel (Eupatorium capillifolium), Caesar
weed (Urena lobata), begger-ticks (sidens alba), dwarf horseweed
(Conyza canadensis), Sida cordifolia, periwinkle (Catharanthus
roseus) and Brazil ian pepper (Schinus terebinthi fol ius) (Table
3) .
9
Within the disturbed vegetation, open sandy "teas are
dominated by a mixture of sand pine scrub species, mOSI notably,
sand live oak, jointweed, pawpaw (As imina reti~L'.)" fetter
bush, prickly pear cactus, Palafox ia feayi, and U""j softly
(Cnidoscolus stimulosusl (Table 3).
MANAGEMENT PROCEDURES
In the stated objectives for the management at the property,
there are major responsibilities for the long term preservation of
the vegetation, wildlife, and soils, plus the area' 5 natural
resources. In this role, the following comments are t<;asonable
judgements as to the management "state of the art", su that the
preserves will be sufficlently protected for the future and not
just short-term realities. Assessment of impact and ffidnagement
recommendations are based on field observations, comparison of
past records, and a review of pertinent literature.
Fire Management
Fire has a necessary historical role in the perpetuation of
sand pine scrub and maintaining its diversity of vegetation.
Man's efforts to suppress fires and the development of firebreaks
provided by human activity (i.e., roadways) have created the need
for investigating prescribed burning programs to maintain sand
pine scrub.
Maintenance of sand pine forests fit a general
classification scheme where high intensity crown fires occur only
once in the lifetime of sand pine or about every 30-60 years
(Harper 1915, 1927; Webber 1935; Laessle 1958, 1967; Christensen
10
1981) and have virtually defied man's control efforts (Johansen
and Cooper 1965; Hough 1973). Plow-lines are ineff0ctive and
actions of people, equipment and tools on the ground are usually
futile. Due to the potential devastation of t:hese t.ypes of
wildfires, attempts at fire suppression have been the norm in
Florida for more than 30 years. The unpredictable "at:ure of
these fires, their infrequent occurrence, and the lack of
information on conditions favorable for planned ignition in scrub
habitats, have not allowed for the application of prescr ipt ion
burning.
Except where sites were totally mechanically prepared and
treated as slash burns as in the Ocala National Forest, ro date,
there are only a few examples of prescribed management fires that
imitate a control crown fire in sand pine scrub communities
(Cooper 1972) (which are found in central and southern Florida
dominated by pinus clausa var. clausa). Winter prescribed fires
have been used extensively with much success in the
Choctawhatchee sand pine communities (which are found in northern
Florida dominated by pinus clausa var. immuginata), as the
understory fuels associated with this community are light and
produce low intensity fires at this time of the year (Cooper
1972). However, wildfires continue to be the rule and literature
on prescribed burning in sand pine scrub is limited.
Recently, Doren et. al. (1987) successfully burned two
separate sand pine scrub preserves in Boca Raton using a modified
fuel model to develop an effective prescription for burning sand
11
pine scrub under controlled conditions. The results of these
controlled burns suggest that an effective, safe means exists to
burn sand pine scrubs in a developed landscape, providing this
option is available without smoke management problems and if
weather conditions dictate prescription burning of t1w Quantum
Park scrubs is possible.
Management options for these two preserves range from a
decision 1) to do nothing and let nature take its course; 2) to
manage for the maintenance of a viable scrub ecosyst"m, which
implies the natural biota, or 3) to focus management on the needs
of one or more species. The decision to emphasize ecosystem or
species management depends on the entity responsible for
management, type of preserve, management objectives, area of the
preserve and the nature of the surrounding lands.
Within the sand pine scrub preserves of Quantum Park, the
management objectives should focus on 1) maintenance of normal
ecosystem processes which i ncl ude the perpetuat ion of endemic
scrub plants and animals, 2) the conservation at local soil
characteristics which support the vegetation; 3) maIntenance or
restoration of normal hydrologic conditions; and 4) the
prevention of establishment of exotic species.
Prior to the formulation of a step-by-step approach for the
maintenance of these two preserves, it has been decided that each
preserve will be divided into several smaller components In order
to provide mixed stands of different ages. Based on the life
history characteristics of the sand pine (pinus clausal and
12
rosemary (Ceratiola ericoides) , a 30-50 year burn cycle has been
adopted for this study. This was based on the specific mortality
traits of sand pine (senescence at 50-60 years) and rosemary
(senescence at 20-30 years). To further age each preserve, tree
core data was gathered from randomly selected sand pines
scat tered througho ut each preserve (Table 4). Us i n9 ttli s da ta,
the scrub community of each preserve was divided into definable
tracts that will be used to maintain the ecological diversity of
the scrub (Figures 4A and 4B).
FUEL MODEL
The chaparral/high pocosin/mature shrub model (NFFl. Model 4)
(Anderson 1982), was considered suitable as a base for developing
a fuel model for the sand pine scrub community in central and
south Florida (Table 4). NFFL Model 4 presupposes a brush/shrub
fuel understory six or more feet high, flammable fol iage, a
nearly continuous secondary overstory, with heavy loading of live
and dead fine woody materials. Except for the more scattered
understory, this is very similar to the sand pine scrub of the
Quantum Scrub and seemed likely to be accurate in predictions of
fire behavior in these fuels. Unlike some of the western brush
types, which can usually be burned quite successfully under less
than extreme conditions (Wright and Bailey 1982), sand pine has
been virtually impossible to prescribe burn, and rarely burns
except under the most extreme conditions (Cooper 1972)
prescription parameter development for a sand pine scrub
burn in southeastern Florida was based on a number of restrictive
13
conditions relating to each scrub site: both preserves are
surrounded by local or large scale development, preserve n is
adjacent to a proposed city park, and preserve .2 wi 11 be
surrounded by industrial or commercial lots and possibly a hotel
to the north. For permitting purposes, the stagnation index was
required to be below 7 (Florida Department of Agriculture 1976).
Environmental parameters used to establish fire behav ior
predictions needed to provide for a reasonably intense fire in
order to ensure that the sand pine scrub fuels would burn, yet be
of moderate enough nature to be relatively certain of having
acceptable fire behavior and smoke conditions. The following
ranges of prescription parameters will be used in the scrub
model: midflame windspeed of )-7 mph; wind direct ion easterly-
southeasterly; relative humidity 45%-60%; 1 hour dE,ad fuel
moisture < 11%; live woody fuel moisture 25%-75%; dry bulb
temperature 75-85 OF; and cloud cover < 10%. Val ues outside of
the indicated ranges were also tested in the model but found to
be unacceptable (Doren et. al. 1987).
Fuels like the chaparral, which contain highly volatile
compounds (we considered sand pine scrub such a fuel) require
more preparation for prescribed burning than other fuel types
(Wright and Bailey 1982). Because of the maximum spotting
distance of 0.4 miles (0.64 km) and a probability of Ignition of
70, some site preparation will be considered necessary in order
to ensure a successful burn and protect the values at risk.
SITE PREPARATION
..._-_._~
14
Three to four weeks prior to each burn, 10-20 m wide strips
around each proposed burn site will be crushed using a small
empty, roller drum-chopper (Model SL-7, Marden Manufacturing),
One pass over the vegetation, with drums set parallfcl to each
other, will be sufficient to produce a light slash, without
appreciable soil disturbance or fuel compaction. A narrow (2-4 m
wide) fire lane will be established around each preserve prior to
each burn in order to prevent the possibility of a fire escaping
into adjacent development lots. All of the sand pines within the
chopped area will be dropped into the site to prevent spotting
and to create hot-spots to help prepare a seed bed and open
areas. Approximately l0-1S days will be required without rain in
order to dry out the crushed fuels sufficiently and reduce fuel
moisture to prescribed levels.
Within Preserve 11, the dry prairie/pine flatwoods areas
will be burned separately from the canopied areas of scrub. Due
to the n.ature of the dry prairie, it. may be necessary to
herbicide some of the grass pre-burn in or.der to stimulate the
seeding of scrub species from the existing adjacent ridge.
The sand pine fingers will not be regularly burned for at
least 20 years except in areas now dominated by bahia grass. The
most southern finger has been invaded from the west by bahia
grass, nut sedge, and Ceasar's weed. These three species
indicate that- soil conditions may not be suitable for longterm
scrub surv ival since bahia grass will most likely out-compete
early scrub colonizers. In an effort to eradicate these
15
troublesome species, areas ofbahia grass will be herbicided and
then mulched with hay or other suitable materials in order to
increase fuel loads.
The area will then be burned and a thin
layer of scrub top soil will be broadcast over the burned areas.
This should help the establishment of scrub species.
Since these species are scattered over other areas within
the scrub fingers, herbicide without mulching will be used on a
local scale. The entire area will be seeded with sand pine which
can be purchased through the Division of Forestry.
Small scrub
oaks and other nursery grown stock will be planted to form small
islands within each of the fingers.
Since the oldest trees occur in the northeastern corner of
the sand pine scrub of Tract il, the interior core of the oldest
trees will be left standing for the burn.
The sand ptne around
the fringes will be dropped in place after the area tS roller
chopped (Figure SA).
The remaining areas will also be chopped,
however, no sand pine will be felled. This will allow seed input
from the trees left stand ing as a result of seed release
following the fire.
Tract 2 will be roller chopped in a similar fashion to that
of Tract 1. Two small islands of vegetation will remain standing
with no mechanical alteration.
The other areas will be roller
chopped and the sand pines dropped in place (Figure SA). In
order increase diversity and to prevent the unaltered areas from
ignition during the burn, these areas will be watered by a
temporary sprinkler system at least one day pre-burn.
This will
/
/ .
-~-------_/
16
increase the water content .of the vegetation and make it
d iff icult to ignite. Burning will occur between the months of
December and February, following a wet month. If drought
conditions prevail prior to the scheduled burn and the drought
index is high, it should be postponed until conditions favor a
controllable fire. The exact firing pattern of the burn will be
decided by the burning agency (Le., Division of Forestry,
private firms, or local government) on the day of the burn. Head
fires will be used were applicable to simulate the fir0 behavior
(and effects) of naturally occurring fires, and to ensure as
complete a burn of the vegetation as possible.
All existing structures (i.e., boardwalks, fence ~osts, etc)
that may have been constructed within the preserve at the time of
the burn should be protected by herbiciding in advance of the
burn and then raking down to mineral soil to remove debris from
around the structures. This would reduce the flne fuels
necessary to carry a ground fire.
Since the site is currently being utilized as a relocation
site for gopher tortoise and Florida mice, all burrows should be
flagged prior to roller chopping. If the preserve is fenced at
the time of the burn, access should be made to the closest point
of entry by removing a section of fence to reduce damage to the
remaining unburned areas and reduce soil disturbance. This can
be coordinated with the on-site property association and the City
of Boynton Beach.
Preserve *2 was also divided into 2 separate burn areas
u_..~.
. 17
(Figure 5B) based on the natural contours and the existing
disturbed areas within the preserve.
Each burn site will be
roller chopped in a similar fashion as Preserve il so that small
islands of standing vegetation remain (Figure 5B). All sand pine
on the margins of each tract will be dropped in place to prevent
spotting in nearby vegetated areas.
The fuel model and
prescription used on Preserve il will also be utilized for these
burns.
A temporary watering system will also be utilized for
those areas that will not be burned.
BURN SCHEDULE
The following burn schedule will be utilized for the sand
pine preserves at Quantum Park:
Preserve il
Tract i
123
Preserve i2
Tract I
1 2
Year
1988
1993
1998
2003
2008
2013
2018
2023
2028
2033
2038
2043
2048
2053
2058
2063
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
The burn schedule was design to fit the existing age distribution
within each sand pine parcel. The sand pines within Tract 11 of
preserve 11 average about 30-35 years of age. Since this is the
oldest portion of the scrub on this ridge, burning will occur in
18
20 years when the trees begin to reach senescence.
Some of the
older trees will be left to reach old age without the effect of
burning;
Seeding into the burned areas will occur from the
existing margins of the scrub.
Tract '2 will be burned in
approximately 30 years when the trees reach maturity.
The dry
prairie/pine flatwoods community will be burned every 5 years in
order to stimulate new growth of herbs and grasses for local
gopher tortoise populations.
Areas within the prairie that are
invaded by scrub species will be excluded in the following burn
year.
This will promote the development of scrub islands within
the dry prairie system.
The exact areas to be excluded in each
subsequent burn will be decided by the City Forester or a private
consultant prior to the prescribed burn.
Sand pine within Preserve '2 range in age from 11-37 years
with an average age of 19.5 years.
Since no age specific
d istr ibut ion ex ists within thi s preserve area, the si te was
randomly divided to be burned on a 30 and 50 year rotation,
beginning with tract .1 of preserve '2.
Tract .2 will be burned
in the opposite rotation sequence (50 and 30 years) to "llow for
ecological diversity for local wildlife and plants.
AGENCIES AND MATERIALS FOR BURNING
Prior to each burn, a permit for burning will be obtained
from the city forester. The burning will be coordinated with the
city fire department who may be able to assist with fire
protection equipment at the time of the burn. The State Division
of Forestry will be contacted to disk existing fire lanes or to
\
\
19
create new lanes depending on .the conditions of the surrounding
fuels and vegetation. If used, all fire plowing will be kept to
a minimum depth (3 to 6 inches). The burn will be conducted by a
private agency such as Forest Resources Management, 1528 Hendry
Street, Fort Myers, Fl. 33901. Depending on tbe weather
cond it ions on the day of the burn, the Florida HigbwdY Patrol
will be notified about possible smoke problems on 1-95.
Crew size and equipment will be determined by the agency
conducting the burn. The estimated cost, based on 1988 figures,
for the above work will be about $8,000.00 for burning 10 acre
blocks. The cost for burning less acreage may be slightly less,
however, mobilization costs will be very similar. The above cost
estimate includes any changes necessary to the burn plan,
chopping the site, coordination with local and state agencies,
man-power to conduct the burn, and permit acquisition from city
and state agencies. The cost, based on 1988 figures, for burning
the dry prairie will be about $1,500 to $2,000 for coordination,
permits, and on-site burning.
If burning turns out to be an unacceptable means for
maintaining the existing scrub, due to smoke management or
excessive explosive fuels, then mechanical means such as roller
chopping will be utilized. This alternative method will require
an empty roller chopper that will bend and break the vegetation
near ground level, causing minimal soil disturbance. The use of
a water filled chopper would cause severe soil disturbance which
could effect the longterm survival of these scrubs, The chopped
20
vegetat ion would then be removed from the site to a 11 ow s cr ub
regeneration. Since most of the seed trees would be removed,
these areas could then be seeded with sand pine .by using the
methodology utilized in the Ocala National Forest. Mechanically
seeding some areas and not other would provide scrubs of various
age classes, a benefit for longterm survival of many of the scrub
animals.
Implementation of the above management plan will require the
financial commitment from the local property association and the
commitment by the City of Boynton Beach.
In contrast to the abo~e scrub management plan,
approximately 1.3 acres of ruderal vegetation withln preserve .2
should be immediately altered to allow the establishment of scrub
vegetation. These previously disturbed areas along the west edge
of the site should be herbicided, mulched as described dbove and
burned. A thin layer of scrub soil could then be sCattered over
the burn areas and then the area seeded with sand pine.
prescr ibed burning would require the format ion of a sandy
fire break between the existing scrub and the ruderal vegetation.
Burning should occur when the winds are out of the east to
prevent smoke management problems on the interstate highway.
This would force the flame front to the west, away from the sand
pine scrub vegetation.
Once the disturbed areas have been burned, sand pine seeds
should be broadcast and slightly trenched into the sand about 2
inches. Other trees such as sand live oak could also be planted
21
in these disturbed areas to simulate oak thickets which could be
utilized by scrub jays as suitable nesting sites.
Observations
from other scrubs indicate that oak thickets wi th as few as 5
trees have been utilized as nesting sites by scrub jays. Two
small oak thickets will be planted within the disturbed areas.
Each thicket will be planted with 5 field grown sand 1 ive oaks
which range in height from 5-7 feet. The trees will be placed in
a pattern to produce a dense canopy required for nesting.
The burning of the ruderal vegetation within Preserve *2
would require a permit from the City Forester and coor'dination
with the City of Boynton Beach fire department.
EXOTIC PLANT REMOVAL
One of the most serious threats to any native plant
community in south Florida is the invasion of exotic vegetation.
Exotics can modify normal ecological processes or relationships,
including predator-prey and herbivore-plant relationships,
nutrient and energy cycles, and soil-building and erosion
processes.
It has also been shown that the general stability of
Florida's natural communities is also reduced.
Brazilian pepper (Schinus terebinthifolius) and punk tree
(Melaleuca quinquenervial do occur within the preserve areas. An
on-gOing treatment program was initiated on the 20 May 1987 by
treating the base of each shrub or tree with herbicide (Garlon
4). The eradication process will be extended to all non-scrub
species throughout the preserve areas in order to reduce unwanted
seed banks which may affect the long-term survival of the scrub
(
22
commun i ty.
The above management plan provides a step-by-step program to
fulfill the requirements of the Development Order and the
Treasure Coast Regional Planning Council. Modifications to the
above plan may be in order as new information becomes available
concerning the fire ecology of the sand pine scrub community.
/
~-
"
23
Figure 1. Location of Preserve #1 and Preserve #2
within the Quantum Park project, Boynton
Beach, Florida.
,
" ::-":""(':'1,
'" .---
11'._.:..;..\
il
illi
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---
24
Aer i a1
scrub,
within
areas
the dry
of sand pine
retention pond
Figure 2.
photograph showing
dry prairie, and
Preserve #1.
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25
Figure 3.
Aerial photograph showing areas of sand pine
scrub and ruderal vegetation within Preserve #2.
.
Figure 4A.
Burn tracts for Preserve #1.
--- r,
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TRACT 3
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APPRO)(. LOCATION
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26
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Figure 4B.
Burn tracts for Preserve 12.
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27
Tract 1
.
'.
Figure SA.
28
Areas within Preserve #1 that must ,be roller chopped
(diagonal lines) prior to the prescribed burll.
r'r
.... 0
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Figure sa.
Una 1 tered
Scrub
Unaltered Scrub
Areas within Preserve 42 that must be roller chopped
(diagonal lines) prior to the prescribed burn.
~ ~',1:' ",. ,;;; ..... . . :( "",,'
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29
(
.
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chopped
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Una 1 tered
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Ro 11 er
Chopped
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chopped
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'Una ltered
Scrub
Roller chopped
Trees down
. :~'t"" .
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Roller chopped trees up
d' '
.,- '
..
311
Table 1. Checklist of the vascular flora for the Sand Pine
Preserve .1 at Quantum Park, Boynton Beach.
Scientific Name
Common Name
Trees
Acacia auriculaeformis
Ficus aurea
llex cassine'
Melaleuca quinquenervia
Pinus clausa ,
Pinus elliottii
Sabal palmetto
Earleaf Acacia
Strangler fig
Dahoon holly
Punk tree
Sand pine
Slash pine
Cabbage palm
Shrubs
Asimina obovata
Asimina reticulata
Befaria racemosa
Ceratiola ericoides
Conradina grandiflora
Gelsemium sempervirens
llex glabra
Licania michauxii
Lyonia ferruginea
Lyonia lucida
Palafoxia feayi
Quercus chapmanii
Quercus geminata
Quercus myrtifolia
Rubus trivialis
Sabal etonia
Schinus terebinthifolius
Serenoa repens
Vaccinium myrsinites
Ximenia americana
PawPaw
PawPaw
Tarflower
Rosemary
Scrub mint
Yellow jassamine
Gallberry
Gopher plum
Rusty lyonia
Staggerbush
Palafoxia
Chapman's oak
Sand live oak
Myrtle oak
Blackberry
Scrub palm
Brazil ian pepper
Saw palmetto
Huckleberry
Tallowwood
Herbs
Abrus precatorius
Ambrosia artemisiifolia
Andropogon virginicus
Aristida gyrans
Aristida spiciformis
Aristida stricta
Asclepias curtissii
Aster tortifolius
Balduina angustifolia
Bulbostylis ciliatifolia
Cassia chamaecrista
Roasary pea
Ragweed
Broomsedge grass
Wiregrass
Bottlebrush threeawn
wiregrass
Curtiss milkweed
white-topped aster
Yellow buttons
Hair sedge
partridge-pea
3l
Cassia nictitans
Cassia occidentalis
Cassytha filiformis
Catharanthus roseus
Cenchrus i~certus
Centrosema virginianum
Chrysopsis scabrella
Commelina erecta
Conyza canadensis
Crotalaria rotundifolia
Croton glandulosus
Crotonopsis linearis
Cuthbertia ornata
cynodon dactyl on
Cyperus haspan
Cyperus planifolius
Cyperus retrorsus
Dalea feayi
Dichanthelium dichotomum
Dichanthelium sabulorum
Digitaria serotina.
Diodia teres
Eclipta alba
Emilia fosbergii
Eupatorium capillifolium
Euphorbia milii
Euphorbia polyphylla
Euthamia minor
Froelichia floridana
Galactia regularis
Gelsemium sempervirens
Gnaphalium pensylvanicum
Hedyotis procumbens
Helianthemum nashii
Heliotropium polyphyllum
Heterotheca subaxillaris
Indigofera hirsuta
Lechea cernua
Lechea deckertii
Liatris chapmanii
Linaria canadensis
Mollugo verticillata
Momordica charantia
Opuntia humifusa
paspalum notatum
paspalum setaceum
Phytolacca americana
Pityopsis graminifolia
polanisia tenuifolia
polygala incarnata
polygonella ciliata
polygonella fimbriata
Wild sensitive plant
Coffee senna
Love vine
periwinkle
Sand spur
But terfly-pea
Goldenaster
Dayflower
Dwarf horseweed
Rabbi t-bells
Croton
Rushfoil
Roseling
Bermudagrass
Nutsedge
Blanket crabgrass
Poor Joe
Cupid's shavingbrush
Dogfennel
Crown-of-thorns
spurge
Cottonweed
Yellow jassamine
Cudweed
Innocence
Heliotrope
Camphorweed
Hairy indigo
Blue toadflax
Indian chickweed
Wild balsam apple
PriCkly-pear cactus
Bahia grass
Thin paspalum
Pokeweed
S ilkgrass
Procession flower
wireweed
Sandhill wireweed
I
.<./~-
32
polygonella gracilis
polygonella polygama
polypremum procumbens
portulaca pilosa
Pterocaulon virgatum
Rhynchelytrum repens
Rhynchospora megalocarpa
Richardia brasiliensis
Schrankia uncinata
scoparia dulcis
Selaginella arinicola
setaria geniculata
Seymeria pectinata
Sida cordi folia
Sisyrinchium solstitiale
Smilax auriculata
Solanum americanum
solidago chapmanii
So lidago str icta
Spartina bakeri
Spermacoce assurgens
Spermacoce verticil lata
Stipulicida setacea
Tillandsia recurvata
Tillandsia usneoides
Tillandsia utriculata
Trichostema dichotomum
Urena lobata
vitis munsoniana
Wireweed
Jointweed
Rustweed
Pink purslane
Rabbit tobacco
Natal grass
Scrub sedge
Sensitive briar
Sweetbroom
Sand' spike moss
Foxtail grass
Blue-eyed grass
Sawbriar
Common nightshade
Goldenrod
Goldenrod
Sand cordgrass
Ball moss
spanish moss
wild pine
Forked blue-curls
Caesar weed
Wild grape
33
Table 2. Tree core data for Preserve 11 and 12. (Sampling
within Preserve 11 was based on four '211 x 211 m
quadrats. Sampling within Preserve 12 was based
on a random walk in an east-west direction along
animal survey lines) .
Preserve 1 Quadrat 1 Density Avg. Avg.
dbh age
1 1 6 18.7 18.6
1 2 18 14.5 17.8
1 3 13 15.7 16.3
1 4 9 25.6 21. 8
1 Total avg. 46 18.6 18.3
2 Total avg. 19 24.1 19.5
,LL
34
Table 3. Checklist of the proposed 14 acre sand pine preserve.
Scientific Name
Common Name
Trees
Acacia auriculaeformis
Brassaia actinophylla
pinus clausa
pinus elliottii
Earleaf acacia
Schefflera
Sand pine
Slash pine
Shrubs
Asimina reticulata
Ceratiola ericoides
Conradina grandiflora
Ilex glabra
Licania michauxii
Lyonia ferruginea
Lyonia lucida
Palafoxia feayi .
polygonella polygama
Quercus chapmanii
Quercus geminata
Quercus myrtifolia
Saba 1 etonia
Schinus terebinthifolius
Serenoa repens
Vaccinium myrsinites
Ximenia americana
PawPaw
Rosemary
Scrub mint
Gallberry
Gopher plum
Fetterbush
Staggerbush
P ala fox ia
Jointweed
Chapman's oak
Sand 11 ve oak
Myrtle oak
Scrub palmetto
Brazilian pepper
Saw palmetto
Huckleberry
Tallowwood
Herbs
Andropogon virginicus
Aristida gyrans
Asclepias curtissii
Bulbostylis ciliatifolia
Cassytha filiformis
Chamaecrista fasciculata
Cnidoscolus stimulosus
Croton glandulosus
Cyperus retrorsus
Dalea feayi
Dichanthelium sabulorum
Eupatorium capillifolium
Euthamia minor
Euphorbia polyphylla
Galactia regularis
Hedoyotis procumbens
Helianthemum nashii
Heterotheca subaxillaris
Broomsedge grass
Wiregrass
Curtis milkweed
Hairsedge
Love vine
Partridge pea
Tread softly
Croton
Nut sedge
Dogfenoel
spurge
Milkpea
Innocence
Camphorweed
35
Lechea cernua
Lechea deckert 11
Lupinus diffusus
opuntia humifusa
Paspalum notatum
paspalum set'aceum
Phytolacca americana
Pityopsis graminifolia
Polygonella ciliata
Polygonella gracilis
Polypremum procumbens
Rhynchelytrum repens
Rhynchospora megalocarpa
Selaginella arenicola
Setaria geniculata
Seymeria pectinata
S ida cord ifolia
Sisyrinchium solstitiale
Smilax auriculata
Solidago stricta
Stipulicida setacea
Tillandsia recurvata
Vitis munsoniana
Nodding pinweed
Blue lupine
Prickly pear cactus
Bahia grass
Thin paspalum
Pokeweed
Silkgrass
Wireweed
Wireweed
Rustweed
Natal grass
Scrub sedge
Sand spike moss
Foxta il grass
Blue-eyed grass
Sawbriar
Goldenrod
Ball moss
Wild gra pe
:::~""c"'.
36
Table 4. Comparison of fuel model parameters for Sand pine Scrub
and NFFL Model 4.
parametersa
Sand pine Fuel Modela NFFLa
1 Hour (dead) fuel load (tons/acre)
Hl hour (dead) fuel load (tons/acre)
100 hour (dead) fuel load (Tons/acre)
Live herbaceous load (tons/acre)
Live woody load (tons/acre)
1 hour fuel
(Surface area to volume ratio, ft2/ft3)
Live woody surface area to volume ratio
(ft2/ft3)
Depth of fuel bed (feet)
Heat (BTU/ft2)
Moisture of Extinction (%)
Wind adjustment factor
5.01
4.01
2.00
0.00
5.01
5.01
4.01
2.00
0.00
S.0l
2000
2000
2000
8
8000
20
0.50
2000
6
8000
20
0.60
aAll measurements are given in standard units in the science of
fire behavior. Conversion to metric would not be appropriate for
the purposes of this paper.
--------~~-- -
CONCLUSIONS AND RECOMMENDATIONS
This property has been under. environmentsl stress for many years
because of its use for livestock production and enhanced hunting and
sand mining. Presently, cattle are grazing over the portion of the
property north of N.W. 22nd Avenue. The past lowering of the water
table has changed and decreased most of the historic wetlsnds to
disjunct fairly insignificant aress that have been or are now used by
cattle. Their disruption is further compounded by the invasion of
Melaleuca quinquenervia and Schinus terebinthifolius.
Regeneration of important upland plant species such as Pinus clausa and
Pinus elliottii were seen infrequently over most of the property.
Animal life is sparse because of the environmental decline. Frequent
boat use of the canals bordering the property is believed to inhibit
aquatic invertebrates and fish.
It is concluded that the present use of the property will continue the
environmental decline and that another projecte<<;t use such as an
environmentally controlled light-industrial park w(;lUld add little to
the present negative environmental situation. If properly buffered,
the projected industrial park should have little. or no significant
impact upon the surrounding region.
It is recommended that:
(1) as many native trees as feasible be saved and used as landscaping
material;
(2) the degrading wet areas be removed (they are presently mosquito
41
breeding areas during the wet season) and replaced with a series of
lakes that will be effective in surface water control;
(3) any wetlands that can be feasibly cleansed of exotics be retained;
(4) plantings of native vegetation be planted on, and surrounding the
sloped banks of the lakes with the concurrence of the environmental
staff of the T.C.R.P.C.;
(5) the littoral-benthic shoreline of the lakes be planted with native
aquatic plants and the lakes stocked with native fish; and
(6) the three protected wildlife species be removed to safer on-site
locations prior to construction with the concurrence of the
environmental ataff of the T.C.R.P.C. and the D.N.R.
.(7) at least 25% of the existing undisturbed sand pine scrub
vegetation (32 acres) at the eastern edge of the property and just
north of N.W. 22nd Avenue be preserved by judicious siting of buildings
on the various lots in this parcel (see Maps Hand H-l).
· NOTE: Preservation of this portion of the sand pine scrub vegetation
should be the responsibility of the property owner's association and an
architectural review committee.
42
March 9, 1988
\1 \;;\.011 VI \;;
COOl.t
regional
planning
council
Mr. Carmen Annunziato, City Planner
City of Boynton Beach
211 S. Federal Highway
Post Office Box 310
Boynton Beach, FL 33425-0310
Subject:
Quantum Park Development
Ecological Plan
c-.-"" c/\
~__4I~!Ql;.6:
of Regional Impact
Dear .,H....
Council staff has reviewed the Ecological Plan for Quantum
Corporate Park dated January 1988. The plan is submitted to
address Development Order (00) Conditions 6 and 9 which relate to
developer responsibilities for: 1) protecting and managing Sand
Pine Scrub habitat and endangered and threatened species; and 2)
preserving, creating, and managing wetland and littoral zone
habitat. Except for a minor amendment to the wetland section
(Part II) of the plan, the developer has adequately addressed his
planning requirements for 00 Condition 9. However, sections of
the plan addressing protection and management of Scrub habitat
and endangered and threatened species will require significant
modification prior to Council approval.
Wetland/Littoral Zone Plan
Site plan changes and lack of reference on lake area views (e.g.,
Figure l-A, etc.) to a master site plan make it impossible to
determine where created littoral zone habitat is proposed to
occur on the property. To allow this det!ermination which will
assist in monitoring this aspect of the prcjact, laka araa views
should include appropriate reference to a master site plan.
Properly referenced lake area views and a master site plan with
like references should be included in this section of the plan.
Sand pine Scrub Preservation and Manaaeme~t Plan
The intent of DO Condition 6 is to preserve a minimum of 40 acres
of Sand pine Scrub habitat on the property including canopy,
understory, and ground cover. Additionally, Condition 6 requires
that a plan be prepared which: 1) identifies and delineates the
boundaries of the Sand pine Scrub habitat area(s) to be
preserved; 2) provides for the effective relocation of endangered
and threatened animal populations into the preserve area(s); and
3228 s.w. martin downs blvd.
sui.. 205 . p.o. bcac 1529
polm city, Rorido 33490
phon. (305) 286-3313
korsn L marcus
cIlai~
jimminix
vice chairman
thomas 9. k.nny, III
_crstary/tRasurcr
donid m. cory
executiw director
Mr. Carmen Annunziato
City of Boynton Beach
March 9, 1988
Page Two
3) provides a management program
area(s) to maintain suitable
threatened species which exist
preserve area(s).
We understand that the developer is committed to preserving the
40-acre, minimum onsite. However, the plan does not include
surveyed locations of microsited Scrub areas, nor does it provide
measures to protect these and other Scrub preserves from
development. Based upon staff's recent site visit and because of
the location of preserve. areas amidst development, there is
90ncern that Scrub preserves will be comDromi~d. Therefore, it
is recommended that the revised plan include surveyed locations
of All Scrub preserves and commitments to properly delineate
these areas in the field to protect them from development
activities. Due to such activities Micrositing Area A (see
Exhibit A) no longer provides an option for Scrub preservation.
It is strongly recommended that actual field de 1 i neation and
surveys be completed immediately for approval by City staff.
for the Sand Pine Scrub preserve
habi tat for endangered and
in or are relocated into the
Original proposals to protect endangered and threatened animal
populations on the property depended upon relocation of these
populations into a 40-acre preserve area. It is proposed that
this 40-acre preserve be reduced to 25.7 acres by eliminating an
area not containing Scrub. Staff is of the opinion that reducing
the size of this preserve area as proposed will not interfere
with protection of relocated populations. However, the Game
Commission is the permitting authority with respect to this
issue. Staff will base its final approval of this aspect of the
plan on Game Commission concurrence with staff opinion. Written
concurrence should be included in the amended plan.
It should be noted that additional active and inactive Gopher
tortoise burrows were observed clustered in a patch of small oaks
in the south central portion of Micrositing Area G (see Exhibit
A) . Once verified, the Game Commission should be notified of
this occurrence and the potential for additional animals to be
relocated into the 25.7-acre preserve area.
Sections of the plan responding to preserve management do not
provide enough information or direction -for implementation.
These sections discuss management philOsophies and set out
programs that can result in the development of management plans
for the Scrub preserves. It is what might be labeled a plan to
prepare a plan. There is a detailed statement provided below, of
the management goal and what needs to be included in the
management plan so that the City and implementing entities are
_.-~~
Mr. Carmen Annunziato
city of Boynton Beach
March 9, 1988
Page Three
provided useful management prescriptions for the Quantum Scrub
preserves.
Manaaement Plan Goal: Long term maintenance of
diversity, long term provision of suitable habitat for
and threatened species and Scrub soils preservation.
vegetative
endangered
Management plans should include:
a. specific fire models and presc~iptions or
specific nonfire methods proposed to be used
in management;
b. proposed habitat management schedules
identifying blocks of land proposed for
management with reference to the year in
which management is proposed to take place;
c. discussion verifying the proposed management
approach as the most preferred based upon:
1) the habitat type, age of community and
target species occurring within the preserve
area; and 2) surrounding land uses, preserve
size, etc.;
d. a justified estimate of the total cost of
implementing the proposed habitat management
plan including personnel required;
e. the entity responsible for implementation of
the proposed management plan (said entity can
be the developer, property owners
association, a governmental _ agency,
environmental or conservation organization,
or educational institution); and
f. the instrument proposed to provide reasonable
assurance of financial and institutional
ability to carry out the commitments included
in the proposed habitat management plan.
It is requested that the City authorize no -land clearing (e. g. ,
fire breaks or lanes, etc.) or construction (e.g., boardwalks,
observation decks, signage, etc.) within Scrub preserves until
the management plan is developed and approved. Development of
.~,....""
Mr. Carmen Annunziato
City of Boynton Beach
March 9, 1988
Page Four
such items without an approved management plan may interfere with
management options for this property.
In previous correspondence and discussion, the developer h~s
requested that he be given relief from preserving Scrub ~n
microsited areas as Scrub creation experiments in the original
preserve are demonstrated to be successful. Language is provided
on page 73.1 of the plan to facilitate the process by which
relief could be given. A flaw in the process proposed is that no
qualitative or quantitative criteria is provided to determine
success of Scrub creation experiments. Council staff is willing
to work with the City and the developers consultant to develop
such criteria. However, until criteria to determine success are
agreed upon, staff cannot approve the language as provided.
As a general observation the plan devotes a considerable amount
of time to resource descriptions, endangered and threatened
species requirements, sampling and trapping methodologies, and
justification for selecting Scrub areas as preserves. These
sections are no longer appropriate to include in the main body of
the plan and contain information which are no longer accurate due
to changes in preserve area size, location, and approach. The
plan would be better served if these sections were corrected and
included as appendices of the document. This approach would free
the main body of the plan to mainly concentrate on a working
preserve management plan.
With a copy of this letter I have provided Dr. Donald Richardson
my notes on the plan to provide him more detailed direction
regarding amendments.
If there are questions, please call.
Sincerely,
~
Michael Busha
Regional Planner
MB:lg
Attachment
cc:v'G~orge Zimmerman
Marina Gonzalez-Pennington
Joan Diemer
Donald Richardson
Ray Fernald
Sam Shannon
l~
--
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1
Part II - HARDWOOD SWAMP, WETLAND, AND FRESHWATER MARSH MITIGATION
r
AND MANAGEMENT PLAN, QUANTUM PARK AT BOYNTON BEACH
I
.
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As stated in the DRI report prepared by the Treasure Coast
Regional Planning Council and as contained in condition, the developer
J
shall establish a vegetated littoral zone of Hardwood Swamp/Freshwater
I
I
Marsh comprising a total of no more than 11 acres as part of the
surface water management system. No less than 5.5 acres of the 11
acre littoral zone requirement shall be maintained and comprised of
species that are representative of Hardwood Swamp habitat found
on-site including but not limited to swamp bay (Persea palustris),
dahoon holly (Ilex cassine), and pond apple (Annona glabra) in
association, with a typical herbaceous layer of ferns and other native
indigenous hydrophytic vegetation. The littoral zone habitat shall be
fully vegetated with native plant species and occur from lake control
elevation to a depth of 3 feet below control elevation. In addition,
the developer shall preserve on-site 6 acres of seasonally flooded
wetland habitat designed to be of value to fish and wildlife species
and consisting of native vegetation typical of such habitats.
The Development Order states that prior to commencement of
(
construction for any phase of the project ,:'the developer shall prepare
a design and management plan for all wetlands or littoral zones that
will be part of that phase. The plans shall: 1) incl ude a topographic
map of the wetland or littoral zone, or include typical
cross-sections; 2) specify how vegetation is to be established,
'.
f
2
f
inc 1 uding the exten t, type, me thod and timing of any plan t ing to be
j
provided; and 3) provide a description of any management procedures to
be followed in order to assure the continued viability, health and
(
function of the littoral zone or wetland. The plan for each phase
{
shall be subject to approval by the City of Boynton Beach in
consultation with the Treasure Coast Regional Planning Council.
f
,
In accordance with the Development Order, we offer this design,
construction and management plan, It accounts for the development of
!
the entire Park in a single phase.
LITTORAL ZONE
As per the amended Master Site Development Plan submitted for the
Boynton Beach Park of Commerce Development, wetland areas in the
!
.
,
freshwater lake system will be planted with freshwater hydrophytes in
accordance with Figures lA-D. As stated above, 5,5 acres of the total
11 acres will be incorporated into the littoral zone planting scheme
as depicted in the generalized lake section (Figure 2).
Each littoral shelf will be covered with a minimum of 3 inches of
organic top soil. The addition of topsoil to these sterile sandy
planting areaS will provide 1) a suitable medium for long-term
survival of all planted hydrophytes, 2) a soil medium that will retain
needed nutrients and 3) a substrate that will reduce the threat of
cattail (Typha domingensis) invasion onto these newly disturbed
we t land areas,
I. .
f
4
f
be required on a site by site basis, however, at least two rows of
r
hydrophytes will be planted to bridge clustered areas. All planting
will commence in the spring and summer months in order to get plants
f
established before winter fronts begin.
I
It is suggested that, if possible, some natural zonation be
utilized in the planting scheme. Soft rush and sawgrass should be
f
planted at mean high water or just above mean high water on the
littoral shelf, Smartweed and lizard's tail should be planted at
f
water depths ranging between 0 and 8 inches or within the upper 3-5
f
,
feet of shelf. A mixture of arrowhead and pickerelweed will be
planted from mean high water and outward from the bank to a depth of
i
.
24 inches, At depths exceeding 24 inches, water lilies will be
planted on A~5 foo~c:"ntersj All water lilies will be planted with
leaves still intact. This has been determined to increase survival of
I
L
this species.
Long-term management of the littoral zone will not be necessary,
provided topsoil is added to the planting sites and quality plant
material is utilized, At the discretion of the developer, some
management of cattails may be desired in selected planting sites for
aesthetic reasons.
HARDWOOD SWAMP
As indicated in the Master Plan, a total of 6 acres of Hardwood
swamp will be preserved. Two isolated wetlands (Figures 3 and 4), a
3.8 acre parcel along the northern border of the property and a
smaller 2.2 acre parcel to the south, will be managed to maintain
local species diversity.
I, '
I
3
As per the design constraints (Figure 2), the littoral shelf will
I
be constructed at a 5 to 1 slope. This will allow a minimum of about
8-10 feet of planting habitat for the mitigated areas. It is
I
important to note that the majority of species used for revegatation
I
of freshwater wetlands will grow to a maximum depth of about 18-24
inches. No species, except water lily (Nymphaea odorata), will be
I
planted at water depths exceeding 24 inches in order to maximize
long-term survival.
I
Based on previous planting experience and other mitigation
i
projects, a mixture of the following species will be utilized:
Arrowhead (Sagittaria lancifolia)
f
Pickerelweed (Pontederia cordata)
Soft rush (Juncus effusus)
White waterlily (Nymphae a odorata)
i
L
Smartweed (Polygonum punctatum)
Lizard's tail (Saururus cernuus)
l
Sawgrass (Cladium jamaicense)
Based on the initial littoral zone acreage estimates, a total of
approximately 25,000 herbaceous wetland hydrophytes would be required
to plant the mitigation areas. Bare root plant material will be used
in the planting areas because potted materials in these quantities are
not available. Each plant will be a minimum of 12 inches in height
and will be planted on staggered 3-foot c~rs or in clusters along
the lake edge. Two or three rows of hydrophytes, depending upon the
amount of shelf available, will be planted in the mitigation areas.
Cluster planting at slightly higher densities (1-2 foot-centers) may
I
f
5
t
These two wetlands are dominated by a dense shrub or small tree
f
layer that forms an impenetrable thicket. The dominant shrub or tree
species include swamp bay (Persea palustris), Carolina ~illow
r
(Salix caroliniana), pond apple (Annona glabra), dahoon holly
(Ilex cassine), wax myrtle (Myrica cerifera), and salt oush
(Baccharis halimifolia). The herbaceous layer is common only
f
I
along the sunny margins and is represented by the following species:
swamp fern (Blechnum serrulatum), royal fern (Osmunda
I
regalis), redroot (Lachnanthes caroliniana), arrowhead
(Sagittaria lancifolia), pickerelweed (Pontederia cordata),
f
sawgrass (Cladium jamaicense) and white waterlily (Nymphae a
odora ta) .
I
The southern 2.2 acre wetland has been invaded by punk tree
(Melaleuca quinquenervia). Due to the density of punk tree in
this wetland, a major portion of the vegetation associated with this
i
L
site will be removed and replanted with native hardwood swamp species,
i
L
Individual hardwood trees within the wetland will be flagged and
located for removal and/or preservation in situ. The actual number of
plants and the location of planting within the 2.2 acre wetland will
not be determined at this time. A resurvey of the plant species just
prior to bulldozing will determine the type and number of individuals
that may be lost and would have to be replaced to make the wetland
func t iona 1 .
Long-term management of these wetlands depends on controlling
water table fluctuations during drought conditions. Every effort to
maintain water tables at or slightly above ground level is important
I
f
I
6
to prevent oxidation of the peat and to maintain a saturated soil
f
condition that would be conducive to regeneration of all associated
species. For the southern 2.2 acre parcel, this should pose no
I
serious problems since the excavated lakes will be held at a
I
predetermined water table.
In accordance with Condition 9 of the Development Order, 5,5 acres
(
of Hardwood Swamp will be created above the mean high water line
(Figure 2). As per the design constraints, the hardwood swamp will be
f
constructed at a 4 to 1 slope. This will allow approximately 8-10
I
feet of planting habitat along the lake shores. Long-term maintenance
of the swamp vegetation is dependent upon establishing and maintaining
I
saturated to temporarily flooded soil conditions. This will
Ultimately be regulated by storage of ground water in the lakes.
\
I
,
Desired species for the hardwood swamp include swamp bay (Persea
t
palustris), dahoon holly (Ilex cassine), sweet bay (Magnolia
virginiana), Carolina willow (Salix caroliniana), pond apple
l
(Annona glabra), red maple (Acer rubrum), and wax myrtle
(Myrica cerifera). Nursery grown trees of various sizes (1-20
gallon) will be utilized throughout the mitigated areas. Transplanted
trees from on-site wetlands will be used where possible. (Trees will
be planted on 10 foot centers or in clumps to simulate natural field
conditions.
Based on a trees wetland affinity, the following zonation will be
used in each hardwood swamp zone. More water tolerant species such as
pond apple, red maple, and sweet bay will be planted near the mean
l.
r
7
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high water line or at the 12 foot elevation. Swamp bay, dahoon holly,
r
and Carolina willow will be planted above the saturated zone with wax
myrtle occupying the ecotone between the hardwood swamp and the upland
I
vegetation.
No specific numbers of required tree species can be- provided at
f
this time because many of these species may not be available when
f
planting commences. It may be necessary to alter planting
specifications prior to planting the hardwood swamp zones.
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