Habitats of North Carolina
Habitat Group:
Habitat Type:
   
Members of Peatland Forests and Shrublands:
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Peatland Forests and Shrublands
Coastal Plain Wet Acidic Shrublands
General Description This habitat includes a number of co-adapted complexes consisting of various wetland species of heaths, hollies, and other shrub species along with their obligate herbivores.

The physical factors that determine the presence of the shrubs include a high water table, producing constantly saturated, wet soils; acidic, nutrient poor soil types; and periodic fires. The largest expanses of these habitats occur on wet flats in the Outer Coastal Plain. In the Sandhills, they include seepage slopes, streamhead forests, and the ecotones between these wetlands and the adjoining drier Longleaf-dominated habitats. For the herbivores, the main habitat requirement is the presence of their larval host plants. Those that pupate on the ground must be able to cope with the prevailing soil and water conditions, but others may spend their entire lives up in the shrubs.

Other MSD Habitats that intersect this habitat type include Laurel Shrublands, General Heath Thickets, and General Shrublands and Thickets. All of those habitats contain species that are common in the peatlands and other acidic wetlands that characterize Coastal Plain Wet Acidic Shrublands; the members of the General Shrublands and Thickets group, in fact, may be the most prominent vertebrates in this habitat. However, all of the members of these intersecting habitats occupy a much wider range, including areas of uplands as well as wetlands associated with rich soils.

Abiotic Factors
Biotic Structure
Co-evolved Species Groups Phagic and Competitory Symbioses:
Cyrilla racemiflora // Argyrostrotis erasa-Argyrostrotis flavistriaria
Gordonia lasianthus // Gondysia similis
Ilex species // Celastrina idella
Ilex glabra-Ilex coriacea // Phytomyza glabricola
Lyonia lucida // Zomaria rosaochreana
Magnolia virginiana // Callosamia securifera


Determining Species
sciNamecomNameg_ranks_rankmod_s_rankprob_of_extirpation
BUTTERFLIES
Celastrina idellaHolly AzureG4G5S4S40.00041
HARDWOODS
Gordonia lasianthusLoblolly BayG5S5S50.00000
Magnolia virginianaNorthern Sweet BayG5S5S50.00000
LEAF-MINING FLIES
Phytomyza glabricolaa LeafminerSNR
MOTHS
Gondysia similisan owlet mothG3G4S2S3S2S30.01230
Metarranthis lateritiariaan inchworm mothG3G4S2S4S2S40.00407
Cleora projectaProjecta GrayG4S3S30.00407
Callosamia securiferaSweetbay SilkmothG4S3S4S3S40.00132
Spilosoma dubiaDubious Tiger MothG4S3S4S3S40.00132
Zomaria rosaochreanaA tortricid mothGNRS3S4S3S40.00132
Argyrostrotis deletaan owlet mothG4G5S4S40.00041
Argyrostrotis erasaan owlet mothG4S4S40.00041
Argyrostrotis sylvarumWoodland Chocolate MothG4S4S40.00041
Sphinx gordiusGordian SphinxG5S4S40.00041
Argyrostrotis flavistriariaYellow-lined Chocolate MothGNRS4S5S4S50.00010
SHRUBS
Rhododendron serrulatumSweet AzaleaGNRS4S40.00041
Clethra alnifoliaCoast Pepper-bushG5S5S50.00000
Cyrilla racemifloraSwamp CyrillaG5S5S50.00000
Ilex coriaceaBay-gail HollyG5S5S50.00000
Ilex glabraInk-berryG5S5S50.00000
Leucothoe axillarisCoastal Dog-hobbleG5S5S50.00000
Lyonia lucidaFetter-bushG5S5S50.00000
Nr = Number of Ranked Species = 21
Ner = Number of Extant, Ranked Species = 21
Nv = Number of Historic and Extirpated Species = 0
Nar = Number of Species at Risk of Extirpation (State rank > S5) = 13
Nss = Number of Secure Species (State Rank = S5) = 8
Pss = Proportion of Secure Species (Nss/Ner) = 0.38095
ENE = Expected Number of Extirpations (Sum of PE) = 0.02696
Average PE (ENE/Ner) = 0.00128
Habitat Risk Index = (Nar+Nv) x Average PE = 13 x 0.00128 = 0.01664

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 2022-01-07 13:25:55