Habitats of North Carolina
Habitat Group:
Habitat Type:
Members of Upland Hardwood Forests:
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Upland Hardwood Forests
Gum and Tupelo Forests
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General Description This habitat is defined by the presence of Nyssa species, which collectively, occupy a wide of habitat conditions: deeply flooded swamps in the case of Water Tupelo; blackwater floodlplains and depression ponds in the case of Swamp Tupelo; and dry uplands in the case of Blackgum.

Since each species of Nyssa occupies a different habitat type, none of them are determining species of this general habitat. Instead, the determining species are stenophagous herbivores that feed on all three species of Nyssa and consequently occur throughout the range of that genus.

Abiotic Factors Geographic Regions: Lower Coastal Plain to High Mountains. USDA Hardiness Zones: 6-8. Landform: ridges, slopes, bottomlands, and wet flats. Slope Aspect: occurs on all slopes aspects as well as on ridges and flats. Soil Moisture: Dry to hydric. Soil texture: sandy to loamy to alluvial to mucky. Soil pH: circumneutral to acidic. Soil Nutrient Content: rich to poor. Microclimate: Warm to cool; humid to dry. Hydrological Features: surface waters are common to scarce. Flood Frequency: permanently to never flooded. Flood Duration: nonexistent to permanent. Fire Frequency: common to rare. Drought Frequency: frequent to rare. Insolation: full sun to full shade

Biotic Structure Key Species species of Nyssa must be present Vegetation Type: closed-canopy forests, including swamp forests, to dry open woodlands. woody debris is plentiful but leaf-litter may be sparse to absent in floodplain examples

Co-evolved Species Groups Phagic and Competitory Symbioses:
Nyssa species // Actrix nyssaecolella-Allotria elonympha-Comachara cadburyi-Polygrammate hebraeicum-Synanthedon rubrofascia

Determining Species
Eriophyes nyssae
Actrix nyssaecolellaa pyralid mothGNRS3S5S3S50.00041
Polygrammate cadburyiCadbury's MystiqueGNRS4S40.00041
Ectoedemia nyssaefoliellaGNRS4S5S4S50.00010
Allotria elonymphaFalse UnderwingG5S5S50.00000
Polygrammate hebraeicumHebrew MothG5S5S50.00000
Antispila nysaefoliellaTupelo LeafminerGNRSUSU0.00202
Synanthedon rubrofasciaTupelo Clearwing MothGNRSUSU0.00202
Nr = Number of Ranked Species = 7
Ner = Number of Extant, Ranked Species = 7
Nv = Number of Historic and Extirpated Species = 0
Nar = Number of Species at Risk of Extirpation (State rank > S5) = 5
Nss = Number of Secure Species (State Rank = S5) = 2
Pss = Proportion of Secure Species (Nss/Ner) = 0.28571
ENE = Expected Number of Extirpations (Sum of PE) = 0.00496
Average PE (ENE/Ner) = 0.00071
Habitat Risk Index = (Nar+Nv) x Average PE = 5 x 0.00071 = 0.00355

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
Major Conservation Reserves
Priority Areas for Surveys and Conservation Protection
Stewardship and Management Recommendations
References Low, C., Scheffer, S.J., Lewis, M.L. and Gates, M.W., 2012. The relationship between variable host grouping and functional responses among parasitoids of Antispila nysaefoliella (Lepidoptera: Heliozelidae). Molecular ecology, 21(23): pp.5892-5904. Available online at: https://www.researchgate.net/publication /232698113_The_relationship_between_variable_host_grouping_and_functional_responses_among_parasitoids_of_Antispila_nysaefoliella_Lepidoptera_Heliozelidae
Updated on 2022-01-02 14:38:11