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Classification
Scientific Name: Northern Atlantic Coastal Plain Basin Swamp and Wet Hardwood Forest
Unique Identifier: CES203.520
Image 21917
© Brad Aguis
Summary: This system comprises nonriverine hardwood swamps of seasonally flooded habitats, including relatively shallow groundwater-influenced depressions and Coastal Plain terraces. It ranges from the southern glaciated Atlantic Plain of Long Island, New York, south along the northern Coastal Plain to Virginia. Although supporting some seepage indicators, it is also affected by overland flow. The substrate is mineral soil overlain by a variable organic but non-peaty layer. Characteristic tree species include Acer rubrum, Liquidambar styraciflua, Nyssa sylvatica, Quercus michauxii, Quercus pagoda, Quercus palustris, and Quercus phellos. Pinus taeda is not uncommon south of Delaware Bay.

Classification Approach: International Terrestrial Ecological Systems Classification (ITESC)

Classification Comments: Vegetation along streams is accommodated in Northern Atlantic Coastal Plain Riparian and Floodplain (CES203.070).

Similar Ecological Systems
Unique Identifier Name
CES203.384 Southern Coastal Plain Nonriverine Basin Swamp


Component Associations
Association Unique ID Association Name
CEGL004644 Quercus (phellos, michauxii) / Ilex opaca / Clethra alnifolia / Woodwardia areolata Wet Forest
CEGL006013 Acer rubrum - Nyssa sylvatica - Liquidambar styraciflua - Populus heterophylla Swamp Forest
CEGL006110 Liquidambar styraciflua - Acer rubrum - Quercus phellos / Eubotrys racemosa Swamp Forest
CEGL006223 Liquidambar styraciflua - Acer rubrum - Nyssa biflora / Carex joorii Swamp Forest
CEGL006240 Quercus palustris - (Quercus bicolor) - Acer rubrum / Vaccinium corymbosum / Osmunda cinnamomea Wet Forest
CEGL006390 Quercus falcata - Quercus michauxii / Ilex opaca Forest
CEGL006606 Acer rubrum - Fraxinus pennsylvanica / Saururus cernuus Swamp Forest
CEGL006965 Acer rubrum - Fraxinus pennsylvanica - Liquidambar styraciflua Floodplain Forest



Classifiers

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

Diagnostic Classifiers
Primary Classifier Secondary Classifier
Forest and Woodland (Treed)  
Seepage-Fed Sloping  
North Atlantic Coastal Plain  

Non-diagnostic Classifiers
Primary Classifier Secondary Classifier
Isolated Wetland Partially Isolated

At-Risk Species Reported for this Ecological System
Scientific Name
  (Common Name)
NatureServe Global Status U.S. Endangered Species Act Status
Carex schweinitzii
  (Schweinitz's Sedge)
G3G4  
Helonias bullata
  (Swamp-pink)
G3 LT: Listed threatened
Hydrochus spangleri
  (Seth Forest Water Scavenger Beetle)
G1  
Juncus caesariensis
  (New Jersey Rush)
G2G3  
Narthecium americanum
  (Bog Asphodel)
G2  
Scirpus longii
  (Long's Bulrush)
G3  
Trillium pusillum var. virginianum
  (Virginia Least Trillium)
G3T2  

Vegetation Composition (incomplete)
Species Name Rounded Global Status Growth Form Stratum Char-
acter-
istic
Domi-nant Con-stant
Cover Class %
Con-
stancy
%
Acer rubrum G5 Broad-leaved deciduous tree Tree canopy    
 
 
Liquidambar styraciflua G5 Broad-leaved deciduous tree Tree canopy    
 
 
Nyssa sylvatica G5 Broad-leaved deciduous tree Tree canopy    
 
 
Quercus phellos G5 Broad-leaved deciduous tree Tree canopy    
 
 
Clethra alnifolia G5 Broad-leaved deciduous shrub Shrub/sapling (tall & short)    
 
 
Vaccinium corymbosum G5 Broad-leaved deciduous shrub Shrub/sapling (tall & short)    
 
 
Woodwardia areolata G5 Fern (Spore-bearing forb) Herb (field)    
 
 


Animal Species Reported for this Ecological System
Scientific Name
  (Common Name)
Global Status U.S. Endangered Species Act Status Charact-
eristic
Exotic
Ambystoma maculatum
  (Spotted Salamander)
G5      
Condylura cristata
  (Star-nosed Mole)
G5      
Dryophytes versicolor
  (Gray Treefrog)
G5      
Hydrochus spangleri
  (Seth Forest Water Scavenger Beetle)
G1      
Limnadia lenticularis
  (Euroamerican Clam Shrimp)
G4G5      


Distribution
Color legend for Distribution Map
Nation: United States
United States Distribution: DE, MD, NH, NJ, NY, PA, VA
Global Range: It ranges from Long Island, New York, south to Virginia.

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

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

National Mapping
ESLF Code (Ecological System Lifeform): 9342

West Landfire Legend: No
East Landfire Legend: No

Authors/Contributors
Element Description Edition Date: 14Jan2014
Element Description Author(s): R. Evans, J. Teague, M. Pyne and L.A. Sneddon

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


References
  • 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.

  • Eyre, F. H., editor. 1980. Forest cover types of the United States and Canada. Society of American Foresters, Washington, DC. 148 pp.

  • 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.

  • Metzler, K., and J. Barrett. 2006. The vegetation of Connecticut: A preliminary classification. State Geological and Natural History Survey, Report of Investigations No. 12. Connecticut Natural Diversity Database, Hartford, CT.

  • NYNHP [New York Natural Heritage Program]. 2013c. Online conservation guide for Red Maple-Sweetgum Swamp. New York Natural Heritage Program, Albany, NY. [http://www.acris.nynhp.org/guide.php?id=9899] (accessed September 25, 2013).

  • Rhoads, A. F., and T. A. Block. 2011d. Natural Areas Inventory update of Bucks County, Pennsylvania. Bucks County Commissioners, Doylestown, PA.

  • Sperduto, D. D., and W. F. Nichols. 2004. Natural communities of New Hampshire: A guide and classification. New Hampshire Natural Heritage Bureau, DRED Division of Forests and Lands, Concord. 242 pp.

  • Stevens, G. 1992. Assessment of wetland delineation on the Great Sweet-gum Swamp Site, Village of Scarsdale, NY. Unpublished report. Hudsonia Ltd., Annandale, NY. June 30. 12 pp.

  • 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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Data last updated: March 2019