Habitats of North Carolina
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General Shrublands
General Wet Shrublands
No image for this habitat.
General Description All types of wet shrublands are included in this habitat. These range from the shrubby, acidic peatlands that are common in the Coastal Plain to shrub thickets found under closed-canopy bottomland hardwoods across most of the state.

Determining Species include shrub species that are tolerant of frequent flooding and that require wet to hydric soils. They are not limited to any one type of soil chemistry or insolation conditions, occurring under closed-canopy forests or out in open shorelines. Species in this habitat range widely across the state, occurring in at least two of the physiographic provinces.

Animal members of this habitat are specialized herbivores associated with the characteristic plant species.

Abiotic Factors Geographic Regions: High Mountains to the Lower Coastal Plain. USDA Hardiness Zones: 6-8. Landform: restricted to floodplains and wet flats. Soil Moisture: wet to hydric. Soil Texture: alluvial/loamy, silty, sandy, or peaty. Soil pH: acidic to circumneutral -- includes blackwater as well as brownwater floodplains. Soil Nutrients: poor to rich. Microclimate: warm to cool, humid. Flood Frequency: several times per year to permanent. Flood Duration: weeks to months or permanent. Presence of Pools: common; both permanent and ephemeral ponds and pools may be present. Fire Frequency: generally rare to uncommon in bottomlands but frequent when adjoining fire-maintained habitats. Drought Frequency: rare. Ice Storm Damage: low to moderate. Wind Storm Damage: moderate. Insolation: deep shade to full sun

Biotic Structure Vegetation Type: open shrublands to closed-canopy forests with well-developed shrub layers. Strata: shrubs can occur as an understory layer within forests or can be the top-level stratum in open shrublands; herbaceous species are generally sparse to absent under thick shrub thickets. Organic Shelter, Foraging, and Nesting Structures: shrub thickets in general offer shelter, nesting, and foraging sites for many species of animals (see General Shrublands and Thickets). Dogwood, Viburnum, Holly, and Blueberries have flowers that are visited by a wide range of pollinators, some of them specialized on the generic level. The seeds they produced are eaten by a wide range of birds and mammals.


Co-evolved Species Groups Phagic and Competitory Symbioses
Ilex verticillata // Phytomyza wiggii

Determining Species
sciNamecomNameg_ranks_rankmod_s_rankprob_of_extirpation
LEAF-MINING FLIES
Phytomyza wiggiiSNR
SHRUBS
Viburnum recognitumSmooth Arrow-woodG4G5S4S5S4S50.00010
Cornus foemina (= Swida foemina)G5S5S50.00000
Ilex verticillataBlack HollyG5S5S50.00000
Vaccinium formosuma BlueberryG5S5S50.00000
Viburnum dentatumSouthern ArrowwoodG5S5S50.00000
Viburnum nudumSouthern Wild Raisin, PossumhawG5S5S50.00000
Nr = Number of Ranked Species = 6
Ner = Number of Extant, Ranked Species = 6
Nv = Number of Historic and Extirpated Species = 0
Nar = Number of Species at Risk of Extirpation (State rank > S5) = 1
Nss = Number of Secure Species (State Rank = S5) = 5
Pss = Proportion of Secure Species (Nss/Ner) = 0.83333
ENE = Expected Number of Extirpations (Sum of PE) = 0.00010
Average PE (ENE/Ner) = 0.00002
Habitat Risk Index = (Nar+Nv) x Average PE = 1 x 2.0E-5 = 2.0E-5

Estimated Risk to the Determining Species
Estimated Risk to the Co-evolved Species Groups
Estimated Security of the Habitat
Index of Habitat Imperilment
Identified Risks
Observed Trends
Distribution Map
Distribution
Major Conservation Reserves
Priority Areas for Surveys and Conservation Protection
Stewardship and Management Recommendations
References
Updated on 2022-02-04 16:56:37