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Ecological System Comprehensive Report: Record 1 of 1 selected. View Glossary
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Classification
Scientific Name: Northern Atlantic Coastal Plain Fresh and Oligohaline Tidal Marsh
Unique Identifier: CES203.516

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Summary: This system includes freshwater tidal vegetation occurring on the upper reaches of large rivers influenced by tidal flooding, but beyond the reach of the salt or brackish waters. The system is well-developed on the Chesapeake and Delaware Bay drainages, including the rivers of southern New Jersey, then extends northeast and includes inland portions of the Hudson, Connecticut, Merrimack, Kennebec, and Penobscot rivers and their tributaries. The vegetation includes tall marshes dominated by tall grasses such as Zizania aquatica, marshes of lower stature dominated by forbs such as Amaranthus cannabinus, Hibiscus moscheutos and others, and vegetation characterized by short-statured and rosette-forming forbs such as Eriocaulon parkeri and Isoetes riparia. Associations are distributed by proximity to tidal waters and thus duration and force of flooding. Sediments of more protected and isolated vegetation is composed of finer-grained materials that are poorly drained, or of well-consolidated peat deposits. Vegetation exposed to greater flooding force and scouring action is supported by mineral substrates such as sand and gravel.

Classification Approach: International Terrestrial Ecological Systems Classification (ITESC)


Similar Ecological Systems
Unique Identifier Name
CES201.579 Acadian Estuary Marsh


Component Associations
Association Unique ID Association Name
CEGL004188 Schoenoplectus pungens Tidal Salt Marsh
CEGL004202 Zizania aquatica Tidal Marsh
CEGL004472 Nuphar advena Tidal Marsh
CEGL004706 Peltandra virginica - Pontederia cordata Tidal Marsh
CEGL005089 Decodon verticillatus Shrub Swamp
CEGL006058 Isoetes riparia Tidal Marsh
CEGL006080 Amaranthus cannabinus Tidal Marsh
CEGL006094 Nuphar sagittifolia Tidal Marsh
CEGL006177 Carex hyalinolepis Tidal Marsh
CEGL006181 Hibiscus moscheutos - Polygonum punctatum - Peltandra virginica Tidal Marsh
CEGL006325 Impatiens capensis - Peltandra virginica - Polygonum arifolium - Bolboschoenus fluviatilis - Typha angustifolia Tidal Marsh
CEGL006337 Alnus (incana ssp. rugosa, serrulata) - Cornus amomum Tidal Shrub Swamp
CEGL006352 Eriocaulon parkeri - Polygonum punctatum Tidal Marsh
CEGL006578 Peltandra virginica - Schoenoplectus (pungens, tabernaemontani) Tidal Marsh
CEGL006579 Justicia americana - Peltandra virginica Tidal Marsh
CEGL006833 Acorus calamus Tidal Marsh
CEGL006841 Alnus maritima ssp. maritima / Acorus calamus Tidal Shrub Swamp
CEGL006843 Alnus serrulata - Salix nigra / Pilea (fontana, pumila) Tidal Shrub Swamp
CEGL006844 Amorpha fruticosa Tidal Shrub Swamp
CEGL006846 Morella cerifera - Baccharis halimifolia / Eleocharis fallax Tidal Shrubland
CEGL006847 Iva frutescens / Spartina cynosuroides Tidal Shrubland
CEGL006913 Nelumbo lutea Tidal Marsh



Classifiers

Land Cover Class: Herbaceous Wetland
Spatial Pattern: Large patch
Natural/Seminatural: No
Vegetated ( > 10% vascular cover):
Upland: No
Wetland: Yes
Isolated Wetland: No

Diagnostic Classifiers
Primary Classifier Secondary Classifier
Tidal / Estuarine  
Graminoid  

Non-diagnostic Classifiers
Primary Classifier Secondary Classifier
Herbaceous  

At-Risk Species Reported for this Ecological System
Scientific Name
  (Common Name)
NatureServe Global Status U.S. Endangered Species Act Status
Eriocaulon parkeri
  (Parker's Pipewort)
G3  
Problema bulenta
  (Rare Skipper)
G2G3  

Vegetation Composition (incomplete)
Species Name Rounded Global Status Growth Form Stratum Char-
acter-
istic
Domi-nant Con-stant
Cover Class %
Con-
stancy
%
Alnus serrulata G5 Broad-leaved deciduous shrub Shrub/sapling (tall & short)    
 
 
Cornus amomum G5 Broad-leaved deciduous shrub Shrub/sapling (tall & short)    
 
 
Acorus calamus G4 Flowering forb Herb (field)    
 
 
Amaranthus cannabinus G5 Flowering forb Herb (field)  
 
 
Eriocaulon parkeri G3 Flowering forb Herb (field)    
 
 
Hibiscus moscheutos G5 Flowering forb Herb (field)    
 
 
Isoetes riparia G5 Fern (Spore-bearing forb) Herb (field)    
 
 
Schoenoplectus tabernaemontani G5 Graminoid Herb (field)    
 
 
Zizania aquatica G5 Graminoid Herb (field)    
 
 


Animal Species Reported for this Ecological System
Scientific Name
  (Common Name)
Global Status U.S. Endangered Species Act Status Charact-
eristic
Exotic
Apamea apamiformis
  (Rice Worm Moth)
G4      
Chelydra serpentina
  (Snapping Turtle)
G5      
Chrysemys picta
  (Northern Painted Turtle)
G5      
Nerodia sipedon
  (Northern Watersnake)
G5      
Ondatra zibethicus
  (Common Muskrat)
G5      
Problema bulenta
  (Rare Skipper)
G2G3      
Vison vison
  (American Mink)
G5      


Distribution
Color legend for Distribution Map
Nation: United States
United States Distribution: CT, DE, MA, MD, ME, NJ, NY, PA, VA
Global Range: This system is best developed on the Chesapeake and Delaware Bay drainages, including the rivers of southern New Jersey, but extends northeast and includes inland portions of the Hudson, Connecticut, Merrimack, Kennebec, and Penobscot rivers and their tributaries.

Biogeographic Divisions
Division Code and Name Primary Occurrence Status
203-Gulf and Atlantic Coastal Plain C: Confident or certain

The Nature Conservancy's Conservation Ecoregions
Code Name Occurrence Status
58 Chesapeake Bay Lowlands Confident or certain
62 North Atlantic Coast Confident or certain
63 Northern Appalachian-Boreal Forest Confident or certain

MRLC 2000 Mapzones
Code Name Occurrence Status
60 Chesapeake Bay Confident or certain
61 Northern Appalachia Never was there
65 Connecticut River Basin and Highlands Confident or certain
66 The North Woods Confident or certain

National Mapping
ESLF Code (Ecological System Lifeform): 9293

West Landfire Legend: No
East Landfire Legend: No

Authors/Contributors
Element Description Edition Date: 14Jan2014
Element Description Author(s): R. Evans, L.A. Sneddon, S.C. Gawler

Ecological data developed by NatureServe and its network of natural heritage programs (see Local Programs) and other contributors and cooperators (see Sources).


References
  • Barrett, N. E. 1994. Vegetation patch dynamics in freshwater tidal wetlands. Ph.D. dissertation, University of Connecticut. 277 pp.

  • Comer, P., D. Faber-Langendoen, R. Evans, S. Gawler, C. Josse, G. Kittel, S. Menard, C. Nordman, M. Pyne, M. Reid, M. Russo, K. Schulz, K. Snow, J. Teague, and R. White. 2003-present. Ecological systems of the United States: A working classification of U.S. terrestrial systems. NatureServe, Arlington, VA.

  • Edinger, G. J., D. J. Evans, S. Gebauer, T. G. Howard, D. M. Hunt, and A. M. Olivero, editors. 2014a. Ecological communities of New York state. Second edition. A revised and expanded edition of Carol Reschke's ecological communities of New York state. New York Natural Heritage Program, New York State Department of Environmental Conservation, Albany, NY.

  • Faber-Langendoen, D., C. Hedge, M. Kost, S. Thomas, L. Smart, R. Smyth, J. Drake, and S. Menard. 2011. Assessment of wetland ecosystem condition across landscape regions: A multi-metric approach. NatureServe, Arlington VA. plus appendices.

  • Gawler, S. C., and A. Cutko. 2010. Natural landscapes of Maine: A classification of vegetated natural communities and ecosystems. Maine Natural Areas Program, Department of Conservation, Augusta.

  • NYNHP [New York Natural Heritage Program]. 2013d. Online conservation guide for Freshwater Tidal Swamp. New York Natural Heritage Program, Albany, NY. [http://www.acris.nynhp.org/guide.php?id=9868] (accessed September 25, 2013).

  • Rhoads, A. F., and T. A. Block. 2011c. Pennsylvania Natural Heritage Program. Riverbank Freshwater Tidal Marsh Factsheet. Morris Arboretum. [http://www.naturalheritage.state.pa.us/Community.aspx?=30024] (accessed February 13, 2012)

  • Zimmerman, E. A., T. Davis, M. A. Furedi, B. Eichelberger, J. McPherson, S. Seymour, G. Podniesinski, N. Dewar, and J. Wagner, editors. 2012. Terrestrial and palustrine plant communities of Pennsylvania. Pennsylvania Natural Heritage Program, Pennsylvania Department of Conservation and Natural Resources, Harrisburg. [http://www.naturalheritage.state.pa.us/Communities.aspx]


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