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Classification
Scientific Name: Southern Coastal Plain Hydric Hammock
Unique Identifier: CES203.501

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Summary: This ecological system occupies flat lowlands along the southern and outermost portions of the Coastal Plain of the southeastern United States, usually over limestone substrates. The vegetation of this system is characterized by mixed hardwood species, often with hydric oak species common. In Florida, examples of this system are often found adjacent to the floodplain of spring-fed rivers with relatively constant flows. In some areas, such as the Big Bend region of Florida, they occupy large areas of broad, shallow, mucky or seepy wetlands but generally do not receive overbank flooding. In Alabama, this system is apparently confined to floodplains of the Mobile-Tensaw, where examples are topographically higher than the surrounding floodplains.

Classification Approach: International Terrestrial Ecological Systems Classification (ITESC)

Classification Comments: The original name of this system was too geographically restrictive and was broadened to Southern Coastal Plain to better reflect the range of this system. Confirmed in South Atlantic Coastal Plain portion of Florida by Ann Johnson (pers. comm.).

Similar Ecological Systems
Unique Identifier Name
CES203.275 Southern Coastal Plain Spring-run Stream Aquatic Vegetation
CES203.384 Southern Coastal Plain Nonriverine Basin Swamp


Component Associations
Association Unique ID Association Name
CEGL003527 Sabal palmetto / Ilex cassine - Morella cerifera Swamp Woodland
CEGL004674 Sabal palmetto - Quercus laurifolia - Quercus virginiana - Magnolia virginiana - Ulmus americana Swamp Forest
CEGL004977 Fagus grandifolia - Pinus glabra - Magnolia grandiflora / Serenoa repens Forest
CEGL007040 Sabal palmetto - Quercus virginiana Swamp Forest
CEGL008592 Fraxinus caroliniana - Sabal palmetto - Ulmus americana / Cephalanthus occidentalis Forest
CEGL008598 Chamaecyparis thyoides - Sabal palmetto Swamp Forest



Classifiers

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

Non-diagnostic Classifiers
Primary Classifier Secondary Classifier
Forest and Woodland (Treed)  
Seepage-Fed Sloping  

At-Risk Species Reported for this Ecological System
Scientific Name
  (Common Name)
NatureServe Global Status U.S. Endangered Species Act Status
Acroporium smallii
  (Small's Acroporium Moss)
G1?  
Agarodes logani
  (Logan's Agarodes Caddisfly)
G1  
Antigone canadensis pratensis
  (Florida Sandhill Crane)
G5T2  
Arnoglossum diversifolium
  (Variableleaf Indian-plantain)
G2  
Asclepias viridula
  (Southern Milkweed)
G2  
Baptisia megacarpa
  (Apalachicola Wild Indigo)
G2  
Cambarus doughertyensis
  (Dougherty Burrowing Crayfish)
G1  
Cordulegaster sayi
  (Say's Spiketail)
G3  
Coreopsis integrifolia
  (Ciliate-leaf Tickseed)
G1G2  
Crangonyx hobbsi
  (Hobb's Cave Amphipod)
G2G3  
Cuphea aspera
  (Tropical Waxweed)
G2  
Elliottia racemosa
  (Georgia Plume)
G2?  
Elliptio arctata
  (Delicate Spike)
G2G3Q  
Euphyes dukesi calhouni
  (Dukes' Skipper)
G3T1  
Fimbristylis perpusilla
  (Harper's Fimbry)
G2  
Fissidens hallii
  (Hall's Pocket Moss)
G2  
Forestiera godfreyi
  (Godfrey's Swamp-privet)
G2  
Hartwrightia floridana
  (Florida Hartwrightia)
G2  
Heterodon simus
  (Southern Hog-nosed Snake)
G2  
Hymenocallis henryae
  (Henry's Spider-lily)
G2  
Illicium parviflorum
  (Yellow Anisetree)
G2  
Leitneria floridana
  (Corkwood)
G3  
Lejeunea floridana
  (a liverwort)
G2G3  
Lythrum curtissii
  (Curtiss' Loosestrife)
G1  
Macbridea caroliniana
  (Carolina Birds-in-a-nest)
G2G3  
Magnolia ashei
  (Ashe's Magnolia)
G2  
Matelea alabamensis
  (Alabama Anglepod)
G2  
Matelea floridana
  (Florida Milkvine)
G2  
Najas filifolia
  (Narrowleaf Naiad)
G3  
Notophthalmus perstriatus
  (Striped Newt)
G2G3 C: Candidate
Oxyethira chrysocara
  (Gold Head Branch Caddisfly)
G1  
Oxypolis canbyi
  (Canby's Dropwort)
G2 LE: Listed endangered
Phyllanthus liebmannianus ssp. platylepis
  (Florida Leaf-flower)
G4T2  
Pieris phillyreifolia
  (Climbing Fetterbush)
G3  
Plagiochila floridana
  (a liverwort)
G2?  
Plagiochila sullivantii
  (Sullivant's Leafy Liverwort)
G2  
Pseudobranchus striatus striatus
  (Broad-striped Dwarf Siren)
G5T1T3  
Puma concolor coryi
  (Florida Panther)
G5T1 LE: Listed endangered
Ruellia noctiflora
  (Night-flowering Wild Petunia)
G3?  
Salix floridana
  (Florida Willow)
G2  
Schwalbea americana
  (Chaffseed)
G2 LE: Listed endangered
Scutellaria ocmulgee
  (Ocmulgee Skullcap)
G2  
Selonodon mandibularis
  (Large-Jawed Cebrionid Beetle)
G2G4  
Sideroxylon alachuense
  (Alachua Sink Buckthorn)
G1  
Sideroxylon thornei
  (Swamp Buckthorn)
G3  
Silene polypetala
  (Fringed Campion)
G2 LE: Listed endangered
Sphaerocarpos donnellii
  (a liverwort)
G2G3  
Symphyotrichum racemosum var. 2
  (Apalachicola River Aster)
G4G5T1Q  
Taxus floridana
  (Florida Yew)
G2  
Thalictrum macrostylum
  (Small-leaf Meadowrue)
G3G4  
Ursus americanus floridanus
  (Florida Black Bear)
G5T2  
Verbesina heterophylla
  (Diverseleaf Crownbeard)
G2  
Zale perculta
  (Okefenokee Zale Moth)
G2  

Vegetation Composition (incomplete)
Species Name Rounded Global Status Growth Form Stratum Char-
acter-
istic
Domi-nant Con-stant
Cover Class %
Con-
stancy
%
Ulmus americana G5 Broad-leaved deciduous tree Tree canopy  
 
 
Magnolia virginiana G5 Broad-leaved evergreen tree Tree canopy    
 
 
Quercus laurifolia G5 Broad-leaved evergreen tree Tree canopy    
 
 
Quercus virginiana G5 Broad-leaved evergreen tree Tree canopy    
 
 
Chamaecyparis thyoides G4 Needle-leaved tree Tree canopy  
 
 
Sabal palmetto G5 Palm tree Tree canopy    
 
 
Elliottia racemosa G2 Broad-leaved deciduous shrub Shrub/sapling (tall & short)      
 
 
Forestiera godfreyi G2 Broad-leaved deciduous shrub Shrub/sapling (tall & short)      
 
 
Salix floridana G2 Broad-leaved deciduous shrub Shrub/sapling (tall & short)      
 
 
Sideroxylon thornei G3 Broad-leaved deciduous shrub Shrub/sapling (tall & short)      
 
 
Ilex cassine G5 Broad-leaved evergreen shrub Shrub/sapling (tall & short)    
 
 
Illicium parviflorum G2 Broad-leaved evergreen shrub Shrub/sapling (tall & short)      
 
 
Sideroxylon alachuense G1 Broad-leaved evergreen shrub Shrub/sapling (tall & short)      
 
 
Arnoglossum diversifolium G2 Flowering forb Herb (field)      
 
 
Baptisia megacarpa G2 Flowering forb Herb (field)      
 
 
Coreopsis integrifolia G1 Flowering forb Herb (field)      
 
 
Hartwrightia floridana G2 Flowering forb Herb (field)      
 
 
Lythrum curtissii G1 Flowering forb Herb (field)      
 
 
Macbridea caroliniana G2 Flowering forb Herb (field)      
 
 
Matelea alabamensis G2 Flowering forb Herb (field)      
 
 
Matelea floridana G2 Flowering forb Herb (field)      
 
 
Oxypolis canbyi G2 Flowering forb Herb (field)      
 
 
Ruellia noctiflora G3 Flowering forb Herb (field)      
 
 
Schwalbea americana G2 Flowering forb Herb (field)      
 
 
Scutellaria ocmulgee G2 Flowering forb Herb (field)      
 
 
Silene polypetala G2 Flowering forb Herb (field)      
 
 
Symphyotrichum racemosum var. 2 T1 Flowering forb Herb (field)      
 
 
Thalictrum macrostylum G3 Flowering forb Herb (field)      
 
 
Verbesina heterophylla G2 Flowering forb Herb (field)      
 
 
Fimbristylis perpusilla G2 Graminoid Herb (field)      
 
 
Lejeunea floridana G2 Liverwort/hornwort Nonvascular      
 
 
Plagiochila floridana G2 Liverwort/hornwort Nonvascular      
 
 
Plagiochila sullivantii G2 Liverwort/hornwort Nonvascular      
 
 
Sphaerocarpos donnellii G2 Liverwort/hornwort Nonvascular      
 
 
Acroporium smallii G1 Moss Nonvascular      
 
 
Fissidens hallii G2 Moss Nonvascular      
 
 
Najas filifolia G3 Aquatic herb Submerged aquatic      
 
 


Animal Species Reported for this Ecological System
Scientific Name
  (Common Name)
Global Status U.S. Endangered Species Act Status Charact-
eristic
Exotic
Agarodes logani
  (Logan's Agarodes Caddisfly)
G1      
Agkistrodon piscivorus
  (Cottonmouth)
G5      
Antigone canadensis pratensis
  (Florida Sandhill Crane)
G5T2      
Cambarus doughertyensis
  (Dougherty Burrowing Crayfish)
G1      
Cordulegaster sayi
  (Say's Spiketail)
G3      
Crangonyx hobbsi
  (Hobb's Cave Amphipod)
G2G3      
Elliptio arctata
  (Delicate Spike)
G2G3Q      
Euphyes dukesi calhouni
  (Dukes' Skipper)
G3T1      
Heterodon simus
  (Southern Hog-nosed Snake)
G2      
Notophthalmus perstriatus
  (Striped Newt)
G2G3 C: Candidate    
Opheodrys aestivus
  (Rough Greensnake)
G5      
Oxyethira chrysocara
  (Gold Head Branch Caddisfly)
G1      
Pseudobranchus striatus striatus
  (Broad-striped Dwarf Siren)
G5T1T3      
Puma concolor coryi
  (Florida Panther)
G5T1 LE: Listed endangered    
Selonodon mandibularis
  (Large-Jawed Cebrionid Beetle)
G2G4      
Thamnophis sauritus
  (Eastern Ribbonsnake)
G5      
Ursus americanus floridanus
  (Florida Black Bear)
G5T2      
Zale perculta
  (Okefenokee Zale Moth)
G2      


Distribution
Color legend for Distribution Map
Nation: United States
United States Distribution: AL, FL, GA, MSpotentially occurs
Global Range: As currently documented, this system occurs in Florida, Georgia and rarely in southern Alabama. In Alabama, this system is apparently confined to floodplains of the Mobile-Tensaw (A. Schotz pers. comm.).

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
53 East Gulf Coastal Plain Confident or certain
55 Florida Peninsula Confident or certain
56 South Atlantic Coastal Plain Confident or certain

MRLC 2000 Mapzones
Code Name Occurrence Status
46 Northern Gulf Plains Never was there
55 Southeastern Coastal Plain Confident or certain
56 Floridian Coastal Plain Confident or certain
99 Southern Gulf Plains Confident or certain

National Mapping
ESLF Code (Ecological System Lifeform): 9192

West Landfire Legend: No
East Landfire Legend: No

Authors/Contributors
Element Description Edition Date: 21May2014
Element Description Author(s): R. Evans, C.W. Nordman and M. Pyne

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.

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

  • FNAI [Florida Natural Areas Inventory]. 2010a. Guide to the natural communities of Florida: 2010 edition. Florida Natural Areas Inventory, Tallahassee, FL. 228 pp.

  • Johnson, Ann F. Personal communication. Florida Natural Areas Inventory, Tallahassee.

  • Schotz, Al. Personal communication. Community Ecologist. Alabama Natural Heritage Program. Huntingdon College, Massey Hall, 1500 East Fairview Avenue, Montgomery, AL 36106-2148.

  • Vince, S. W., S. R. Humphrey, and R. W. Simons. 1989. The ecology of hydric hammocks: A community profile. U.S. Fish and Wildlife Service. Biological Report 85(7.26). Washington, DC. 81 pp.


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