Habitats of North Carolina
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Lentic Habitats
Coastal Plain Herbaceous Ponds and Sloughs
General Description This habitat includes permanent ponds and sloughs in the Coastal Plain that support dense masses of floating and submerged aquatic plants. Many of the sites occupied by this habitat represent natural depression ponds, including Carolina Bays, limesink ponds, and interdune ponds. Also included are beaver ponds, old mill ponds, borrow pits, and other shallow man-made ponds. This particular habitat is limited to the Coastal Plain, with the Determining Species found only or predominately in that region. The General Herbaceous Ponds habitat intersects with this habitat but also extends across the Piedmont and into the Mountains.

All of these habitats are open and very sunny, a critical factor for the high diversity of aquatic plants that are the Determining Species of this habitat. Swamp forests generally do not have enough insolation to support a high biomass of aquatic plants and are therefore not included. The Coastal Plain Sluggish Waters habitat intersects this habitat but also intersects swamp forests and is likewise treated separately.

Animal members of this habitat include herbivores such as the turtles and several moth species that have aquatic larvae that specialize on the plant members of this habitat. Also included are amphibious predators, such as the Dragonflies and Damselflies, that are adapted as nymphs to foraging within the submerged vegetation and as adults to hunting from perches on the emerged portions.

Abiotic Factors Geographic Regions: Sandhills to Lower Coastal Plain. USDA Hardiness Zones: 8. Landform: Open ponds located in stream and river floodplains and isolated ponds in poorly drained flats. Soil Moisture: hydric. Soil Texture: alluvial/loamy/silty/mucky. Soil pH: strongly acidic. Soil Nutrients: poor. Microclimate: warm and humid. Flood Frequency: permanently flooded. Flood Duration: year-round. Fire Frequency: generally not a factor except around the margins of the ponds; fires in depressional wetlands may be important for nutrient recycling. Drought Frequency: extremely rare. Insolation: full sun

Biotic Structure Vegetation Type: floating vegetation covering large areas of a pond's surface; trees and shrubs are very sparse or absent. Woody Debris: standing snags and fallen logs are a common feature of beaver ponds, especially in their earlier successional stages; woody debris may be nearly absent in depressional wetlands that are burned during pond drawdowns

Co-evolved Species Groups Phagic and Competitory Symbioses:
Myriophyllum species/Parapoynx allionealis

Competitor Guilds:
Dragonfly nymphs and adults show interspecific aggression related to competition and/or interspecific predation (see Moore, 1964; Pezalla, 1979; Wissinger, 1989). Species that are similar in size, phenology, and range and that use similar habitats and foraging techniques fall into the classic structure of competitory guilds as described by Root (1967).
Bluets associated with this habitat can be placed in the following guild:
Pond Edge Hoverer/Gleaners: Enallagma concisum-Enallagma dubium-Enallagma minusculum-Enallagma sulcatum

Determining Species
Taxa Global RankState RankProbability of Extirpation (PE)
Celithemis amanda - Amanda's Pennant G5S50.00
Celithemis bertha - Red-veined Pennant G5S40.0007
Enallagma concisum - Cherry Bluet G4S30.0058
Enallagma dubium - Burgundy Bluet G5S3S40.0020
Enallagma minusculum - Little Bluet G4SU0.0020
Enallagma sulcatum - Golden Bluet G4SU0.0020
Phanogomphus australis - Clearlake Clubtail G4S20.0460
Telebasis byersi - Duckweed Firetail G5S3S40.0020
Ceratophyllum australe - Southern Hornwort GNRS10.3584
Ceratophyllum echinatum - Spineless Hornwort G4S20.0460
Hottonia inflata - American Featherfoil G4S10.3584
Hydrolea quadrivalvis - Waterpod G5S30.0058
Lemna aequinoctialis - Lesser Duckweed G5S30.0058
Lemna obscura - Little Duckweed G5S30.0058
Limnobium spongia - American Frog's-bit G4S2S30.0164
Myriophyllum heterophyllum - Variable-leaf Water-milfoil G5S30.0058
Myriophyllum laxum - Loose Water-milfoil G3S20.0460
Myriophyllum pinnatum - Cutleaf Water-milfoil G5S10.3584
Myriophyllum tenellum - Slender Water-milfoil G5S10.3584
Nymphoides aquatica - Big Floating-heart G5S30.0058
Nymphoides cordata - Little Floating-heart G5S20.0460
Potamogeton confervoides - Alga-like Pondweed G5S20.0460
Potamogeton illinoensis - Illinois Pondweed G5S10.3584
Potamogeton perfoliatus - Clasping-leaf Pondweed G5S30.0058
Utricularia biflora - Two-flower Bladderwort GNAS40.0007
Utricularia floridana - Florida Yellow Bladderwort G3G5SH0.00
Utricularia inflata - Swollen Bladderwort G5S30.0058
Utricularia macrorhiza - Common Bladderwort G5S10.3584
Utricularia olivacea - Dwarf Bladderwort G4S20.0460
Utricularia purpurea - Eastern Purple Bladderwort G5S30.0058
Utricularia radiata - Floating Bladderwort G4S30.0058
Utricularia striata - Striped Bladderwort G4G5S30.0058
Donacia palmata -
Parapoynx allionealis - Watermilfoil Leafcutter Moth GNRS3S40.0020
Parapoynx obscuralis - Obscure Pondweed Moth GNRSU0.0020
Parapoynx seminealis - Floating-Heart Waterlily Moth GNRS3S40.0020
Pseudemys concinna floridana
Pseudemys rubriventris
Expected Number of Extirpations with a PE value (Sum of PE) = 2.5213
N = Number of Extant Species with a PE value = 32
Average PE = ENE/N = 0.0788
Number of S5 species = 1
Proportion of Secure Species = Number of S5 Species/N = 0.0313
Habitat Risk Index = ENE x (1 – PSS) = 2.4424

Estimated Risk to the Determining Species
Estimated Security of the Habitat
Index of Habitat Imperilment
Identified Risks
Observed Trends
Distribution Map
Major Conservation Reserves
Priority Areas for Surveys and Conservation Protection
Stewardship and Management Recommendations
Updated on 2021-12-30 20:56:22