Habitats of North Carolina
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Early Succesional and Semi-Natural Habitats
General Apocynaceous Forblands

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Habitat Overview Milkweeds, Dogbanes, other members of the Apocynaceae, and their insect symbionts are some of the best-known and studied co-evolved complexes of plants and herbivores. In North Carolina, they occur across a wide range of open and semi-open environments.

This particular habitat includes the most widespread of these species, occurring in at least two of the state's physiographic provinces and that are found across a range of soil types and hyrdologies. Whle many species of the Apocynaceae are habitat factors for this particular group, only those that have fairly broad environmental tolerances are included as Defining Species of this habitat. The symbiotic species included as Defining Species likewise occur widely across the state, associated with both the plant species included within this habitat as well as the more restricted species not listed here.

Related NHP Natural Communities
Defining Species
Taxa Global RankState RankImperilment ScoreHabitat Risk Index
FORBS
Apocynum cannabinum - Indian-hemp G5S51.000.0000
Apocynum cannabinum - Indian-hemp G5S51.000.0000
Asclepias amplexicaulis - Clasping Milkweed G5S51.000.0000
Asclepias purpurascens - Purple Milkweed G5S15.390.8300
Asclepias quadrifolia - Fourleaf Milkweed G5S41.000.2500
Asclepias syriaca - Common Milkweed G5S51.000.0000
Asclepias tuberosa - Butterfly Milkweed G5S51.000.0000
Asclepias variegata - White Milkweed G5S51.000.0000
MOTHS
Cycnia collaris G4S2S32.420.5825
Cycnia inopinatus - Unexpected Cycnia Moth G4S2S32.420.5825
Cycnia oregonensis - Oregon Cycnia Moth G5SU1.490.3750
Cycnia tenera - Delicate Cycnia Moth G5S51.000.0000
Euchaetes egle - Milkweed Tussock Moth G5S41.000.2500
Marmara cf. apocynella - No Common Name GNRSU1.490.3750
Saucrobotys futilalis - Dogbane Saucrobotys Moth GNRS3S51.000.2500
Spargaloma sexpunctata - Six-spotted Gray Moth G5S4S51.000.1250
BUTTERFLIES
Danaus gilippus - Queen G5SZB
Danaus plexippus - Monarch FSR - G4S40.2500
VINES
Gonolobus suberosus - Anglepod G5S51.000.0000
Matelea carolinensis - Maroon Carolina Milkvine G4S41.000.2500
Sum: 26.21
ENE Value of 3.8700 * (1 - # of S5: 8 / # Species 18) = 2.15
Average of 18: 1.46

Phagic and Competitory Symbioses: (Apocynaceae species/Cycnia tenera-Euchaetes egle-Danaus gilippus-Danaus plexippus) // (Apocynum cannabinum/Cycnia collaris-Cycnia inopinatus-Cycnia oregonensis-Spargaloma sexpunctata-Saucrobotys futilalis)

Candidates for Inclusion Milkweed Longhorn Beetles, Dogbane Beetles, Milkweed Bugs, and a number of other species that are obligate herbivores on the plant members of this habitat will be added once websites are developed for their taxa.

Habitat Sub-sets The Queen probably occurs in North Carolina mainly as a migrant, particularly in areas away from the Coastal Plain. However, oviposition has been observed in the extreme southeastern Coastal Plain and along with a number of the Aponacyeaceae that are confined to that region could be used to define a separate habitat.

Distribution Map
Distribution
Survey Coverage Map
Survey Coverage
Survey Priorities
Average Imperilment of Habitat Members
Habitat Conservation Status
High Quality Habitat Occurrence Table
High Quality Habitat Occurrences
Protected Habitat Occurrences
Threats and Trends
Status Summary
Stewardship Recommendations
References
Updated on 2019-12-07 13:05:53