r ™ PL 4 1 / AN ECOLOGICAL CHARACTERIZATION STUDY OF THE CHENIER PLAIN COASTAL ECOSYSTEM OF LOUISIANA AND TEXAS was prepared for the National Coastal Ecosystems Team, Office of Biological Services, U.S. Fish and Wildlife Service. James G. Gosselink, Louisiana State University, was principal investigator. Funding was provided by the Office of Research and Development, U.S. Environmental Protection Agency. Copies of Volume I (Narrative Report) FWS/OBS-78/9, Volume II (Data Source Appendix) FWS/OBS-78/10,and Volume III (Atlas) FWS/OBS-78/11, may be obtained from: National Coastal Ecosystems Team U.S. Fish and Wildlife Service NASA-Slidell Computer Complex 1010 Gause Blvd. Slidell, LA 70458 Contents of Volume HI Plates: 1 A and IB - Index Maps 2 - The Pleistocene Erosional Surface 3Aand3B - Chenier Plain Habitat Groups 4A and 4B - Chenier Plain Wetland Habitats 5A and 5B - Canal and Point Source Discharges 6A and 6B - Special Features The Biological Services Program was established within the U.S. Fish and Wildlife Service to supply scientific information and methodologies on key environmental issues that impact fish and wildlife resources and their supporting ecosystems. The mission of the program is as follows: • To strengthen the Fish and Wildlife Service in ib role as a primary source of information on national fish and wildlife resources, particularly in respect to environmental impact assessment • To gather, analyze, and present information that will aid decisionmakers in the identification and resolution of problems associated with major changes In land and water use. • To provide better ecological Information and evaluation for Department of the Interior development programs, such as those relating to energy develop- ment Information developed by the Biological Services Program Is Intended for use in the planning and decisionmaking process to prevent or minimize the impact of development on fish and wildlife. Research activities and technical assistance services are based on analysis of the Issues, a determination of the decisionmakers involved and their informa- tion needs, and an evaluation of the state of the art to Identify information gaps and determine priorities. This is a strategy that will ensure that the products produced are disseminated are timely and useful. Projects have been initiated in the following areas: coal extraction and conversion; power plants, geothermal, mineral, and oil-shale development; water resource analysis, including stream alterations and western water allocation; coastal ecosystems and Outer Continental Shelf development; and systems inventory, including National Wetland In- ventory, habitat classification and analysis, and information transfer. The Biological Services Program consists of the Office of Biological Services In Washington, D.C., which is responsible for overall planning and management; National Teams, which provide the Program's central scientific and technical expertise and arrange for contracting biological services studies with states, universities, consulting firms, and others; Regional Staff, who provide a link to problems at the operating level; and staff at certain Fish and Wildlife Service research facilities, who conduct in-house research studies.
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Ecological Characterization Study Chenier Plain Texas Louisiana vol. 3
Gosselink, J.G., C.L. Cordes, and J.W. Parsons. 1979. An ecological characterization study of the Chenier Plain coastal ecosystem of Louisiana and Texas. Volume 3, atlas FWS/OBS-78/11. U.S. Fish and Wildlife Service, Office of Biological Services, Slidell, Louisiana.
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r™ PL
4
1
/
AN ECOLOGICAL CHARACTERIZATION STUDY OF THE CHENIER
PLAIN COASTAL ECOSYSTEM OF LOUISIANA AND TEXAS was prepared
for the National Coastal Ecosystems Team, Office of Biological Services, U.S.
Fish and Wildlife Service. James G. Gosselink, Louisiana State University, was
principal investigator. Funding was provided by the Office of Research and
Development, U.S. Environmental Protection Agency.
Copies of Volume I (Narrative Report) FWS/OBS-78/9, Volume II (Data
Source Appendix) FWS/OBS-78/10,and Volume III (Atlas) FWS/OBS-78/11,
may be obtained from:
National Coastal Ecosystems Team
U.S. Fish and Wildlife Service
NASA-Slidell Computer Complex
1010 Gause Blvd.
Slidell, LA 70458
Contents of Volume HI
Plates:
1 A and IB - Index Maps
2 - The Pleistocene Erosional Surface
3Aand3B - Chenier Plain Habitat Groups
4A and 4B - Chenier Plain Wetland Habitats
5A and 5B - Canal and Point Source Discharges
6A and 6B - Special Features
The Biological Services Program was established within the U.S. Fish and Wildlife
Service to supply scientific information and methodologies on key environmental issues
that impact fish and wildlife resources and their supporting ecosystems. The mission of
the program is as follows:
• To strengthen the Fish and Wildlife Service in ib role as a primary source of
information on national fish and wildlife resources, particularly in respect to
environmental impact assessment
• To gather, analyze, and present information that will aid decisionmakers in the
identification and resolution of problems associated with major changes In
land and water use.
• To provide better ecological Information and evaluation for Department of the
Interior development programs, such as those relating to energy develop-
ment
Information developed by the Biological Services Program Is Intended for use in the
planning and decisionmaking process to prevent or minimize the impact of development
on fish and wildlife. Research activities and technical assistance services are based on
analysis of the Issues, a determination of the decisionmakers involved and their informa-
tion needs, and an evaluation of the state of the art to Identify information gaps and
determine priorities. This is a strategy that will ensure that the products produced are
disseminated are timely and useful.
Projects have been initiated in the following areas: coal extraction and conversion;
power plants, geothermal, mineral, and oil-shale development; water resource analysis,
including stream alterations and western water allocation; coastal ecosystems and Outer
Continental Shelf development; and systems inventory, including National Wetland In-
ventory, habitat classification and analysis, and information transfer.
The Biological Services Program consists of the Office of Biological Services In
Washington, D.C., which is responsible for overall planning and management; National
Teams, which provide the Program's central scientific and technical expertise and arrange
for contracting biological services studies with states, universities, consulting firms, and
others; Regional Staff, who provide a link to problems at the operating level; and staff at
certain Fish and Wildlife Service research facilities, who conduct in-house research
studies.
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PLATE 3A
CHENIER PLAIN HABITAT GROUPS
LEGEND
I IAQUATIC -permanently Hooded, non-vegetofed inland open woler ond neorshore Gull habilots,
1 - -'-I WETLANDS -pefiodieolly llooded landj (hotocteriied by emargem vegetation See Pime ^
[$>>:-:] AGRICULTURE -culti.ot.d ..oplond ond imp,o..d po>to..
ill RIDGES AND UPLAND FOREST
I I URBAN -land o..a> developed lo, ,e>id.ntial ond inda.ttiol «.
^SM salt marsh wilh lollgrcii pi.litMi. .pitoH ond bloclro.k'tW
<at«d by I >olh cordgroit [Spartino atterntdoral,
-
I I
mmCD
nr» 4 /-ixiru ki A ncu -infartidol morihei ond oiiociolBd imall pond* domiootad by iallm«adow eofdgra»i|Spartino potani]
BRACKIoH MAKOM and loltgran ; lolinitiej generally l»i thon 10 %»
• .. .Ti-r.. .i-r^i A Ti- ii » nri , -mofiKoi ond oijocioted small pondi, periodically flooded with nearly (rosh wofer,
INTERMCDIATC MARSH bulo«oiiionolly by brocklsh woler, Domifiol«d by loltmeadow cordgrou, bulltongoe (Sagittorio folcota).
and jeoshore po»polum(Poipolum voginolu"'!.
cncCI_l ki A DCU -morihe* flooded by frejh water, and with a diverse floro dominoted by motdoncone (Ponicom hemitomon l.
rKtOn MAKon bulttongue, and olligotorweed [Alternonthero philoxeroidet ).
iny^i Ik. ir\r-rN a nrtj -morihe* surrounded by dike*, spoil bonki, or natural lavooi (hot modify normal flooding. These exist
IMPOUNDcD MAKon in saline to froih oreos. They may be permotiently Uoodod or pumped dry, but all ore dominatedby native emergent wetlond vegelolion (as opposed to impounded ogriculturol lond).
tupelo (Nyiso oqoatka).
BASIN BOUNDARY
G. 1912. amiaxoax:*L a
ES FISH AM) UUJylin SEUVtCZ, AF THF CXFHIFR PLAIK OlASTAL GOOSYFTQI OFSIOK-lBlil. AUWSI W79.