Climate Change Vulnerability Index

Table 1: Vulnerability to climate change of 37 species included in the State Wildlife Action Plan for Pennsylvania and 29 plant species found in Pennsylvania. The species are ordered by preliminary CCVI score then S-rank. Please refer to the definitions of index scores when interpreting the results (located at the Table’s end).

Group Species Common Name CCVI Score S-rank G-rank
Bird Colinus virginianus Northern Bobwhite Presumed stable S1 G5
Bird Cygnus columbianus Tundra Swan Presumed stable S3 G5
Bird Dendroica cerulea Cerulean Warbler Presumed stable S4 G4
Bird Vermivora chrysoptera Golden-winged Warbler Presumed stable S4 G4
Bird Helmitheros vermivorus Worm-eating Warbler Presumed stable S4 G5
Bird Vermivora pinus Blue-winged Warbler Presumed stable S4 G5
Bird Hylocichla mustelina Wood Thrush Presumed stable S5 G5
Bird Piranga olivacea Scarlet Tanager Presumed stable S5 G5
Bird Seiurus motacilla Louisiana Waterthrush Presumed stable S5 G5
Bird Ammodramus henslowii Henslow’s SparrowIncrease likelyS4G4
InvertebrateStygobromus stellmackiStellmack’s Cave Amphipod Extremely vulnerable S1 G1G2
Invertebrate Pyrgus wyandot Grizzled Skipper Highly vulnerable S1 G1G2Q
Invertebrate Gomphus viridifrons Green-faced Clubtail Highly vulnerable S1 G3G4
Invertebrate Gomphus quadricolor Rapids Clubtail Highly vulnerable S1S2 G3G4
Invertebrate Cicindela ancocisconensis Appalachian Tiger Beetle Moderately vulnerable S1 G3
Invertebrate Speyeria idalia Regal Fritillary Presumed stable S1 G3
Invertebrate Lycaena epixanthe Bog Copper Extremely vulnerable S2 G4G5
Invertebrate Papaipema sp. 1 Flypoison Borer Moth Moderately vulnerable S2 G2G3
Invertebrate Cicindela patruela Northern Barrens Tiger Beetle Presumed stable S2S3 G3
Invertebrate Calycopis cecrops Red-banded Hairstreak Increase likely S4 G5
Mammal Myotis leibii Eastern small-footed bat Extremely vulnerable S1BS1N G3
Mammal Neotoma magister Allegheny Woodrat Highly vulnerable S3 G3G4
Mammal Sylvilagus obscurus Appalachian Cottontail Presumed stable SU G2
Mammal Lepus americanus Snowshoe Hare Increase likely S3S4 G5
Mussel Alasmidonta heterodon Dwarf Wedgemussel Extremely vulnerable S1 G1G2
Mussel Pleurobema clava Clubshell Extremely vulnerable S1 G2
Mussel Villosa fabalis Rayed Bean Extremely vulnerable S1 G2
Mussel Margaritifera margaritifera Eastern Pearlshell Extremely vulnerable S1 G4
Mussel Epioblasma torulosa rangiana Northern Riffleshell Extremely vulnerable S2 G2
Mussel Lampsilis cariosa Yellow Lampmussel Extremely vulnerable S3S4 G3G4
Reptile Pseudacris brachyphona Mountain Chorus Frog Highly vulnerable S1 G5
Reptile Glyptemys muhlenbergii Bog Turtle Extremely vulnerable S2 G3
Reptile Cryptobranchus a. alleganiensis Eastern Hellbender Extremely vulnerable S3 G3G4
Reptile Clemmys guttata Spotted Turtle Moderately vulnerable S3 G5
Reptile Crotalus horridus Timber Rattlesnake Increase likely S3S4 G4
Reptile Glyptemys insculpta Wood Turtle Increase likely S3S4 G4
Reptile Ambystoma jeffersonianum Jefferson Salamander Highly vulnerable S4 G4
Plant Prunus pumila var. depressa Eastern Sand Cherry Extremely vulnerable S1 G5T5
Plant Arceuthobium pusillum Dwarf Mistletoe Extremely vulnerable S2 G5
Plant Dodecatheon radicatum Jeweled Shooting Star Extremely vulnerable S2 GNR
Plant Platanthera blephariglottis White Fringed-orchid Extremely vulnerable S2S3 G4G5
Plant Carex diandra Lesser Panicled Sedge Highly vulnerable S2 G5
Plant Quercus phellos Willow Oak Highly vulnerable S2 G5
Plant Utricularia cornuta Horned Bladderwort Highly vulnerable S2 G5
Plant Ruellia strepens Wild Limestone Petunia Moderately vulnerable S2 G4G5
Plant Juncus biflorus Grass Rush Presumed stable S2 G5
Plant Galium trifidum Small Bedstraw Increase likely S2 G5
Plant Andromeda polifolia Bog-rosemary Extremely vulnerable S3 G5
Plant Gaultheria hispidula Creeping Snowberry Extremely vulnerable S3 G5
Plant Rhododendron groenlandicum Labrador-tea Extremely vulnerable S3 G5
Plant Viola selkirkii Great Spurred Violet Extremely vulnerable S3 G5?
Plant Scirpus ancistrochaetus Northeastern Bulrush Highly vulnerable S3 G3
Plant Carex disperma Soft-leaved Sedge Highly vulnerable S3 G5
Plant Carex paupercula Bog Sedge Highly vulnerable S3 G5
Plant Tipularia discolor Cranefly Orchid Moderately vulnerable S3 G4G5
Plant Erythronium albidum White Trout Lily Moderately vulnerable S3 G5
Plant Bartonia paniculata Twining Screwstem Moderately vulnerable S3 G5T5
Plant Schoenoplectus subterminalis Water Bulrush Presumed stable S3 G4G5
Plant Solidago uliginosa Bog Goldenrod Presumed stable S3 G4G5
Plant Conoclinium coelestinum Mistflower Presumed stable S3 G5
Plant Galium latifolium Purple Bedstraw Presumed stable S3 G5
Plant Rotala ramosior Toothcup Presumed stable S3 G5
Plant Andropogon gyrans Elliott's Beardgrass Presumed stable S3 G5
Plant Carex lasiocarpa Many-fruited Sedge Presumed stable S3 G5
Plant Juncus filiformis Thread Rush Presumed stable S3 G5
Plant Salix petiolaris Meadow Willow Moderately vulnerable S4 G5

Definitions of CCVI Scores

Extremely Vulnerable: Abundance and/or range extent within geographical area assessed extremely likely to substantially decrease or disappear by 2050.

Highly Vulnerable: Abundance and/or range extent within geographical area assessed likely to decrease significantly by 2050.

Moderately Vulnerable: Abundance and/or range extent within geographical area assessed likely to decrease by 2050.

Not Vulnerable/Presumed Stable: Available evidence does not suggest that abundance and/or range extent within the geographic area assessed will change (increase/decrease) substantially by 2050. Actual range boundaries may change.

Not Vulnerable/Increase Likely: Available evidence suggests that abundance and/or range extent within geographic area assessed is likely to increase by 2050.