Climate Change Vulnerability Indexline

Climate change vulnerability assessments were conducted for 85 species in Pennsylvania using the Climate Change Vulnerability Index (CCVI v2.0) developed by NatureServe. The CCVI allows the user to examine the exposure and sensitivity of a species to a series of risk factors associated with climate change. Presented below are the results of the vulnerability assessments along with the S and G-ranks for each species. The S and G-ranks provide demographic information not contained in the CCVI that should be used in concert with the CCVI scores when interpreting overall results. Definitions for the CCVI scores are provided at the end of the table and each species is linked to a summary sheet that describes the factors contributing most to their climate change vulnerability. Additional information is available in the final report. Definitions of the state and global rank codes can be found here.

Group Species Common Name CCVI Score S-rank G-rank
Amphibian Cryptobranchus alleganiensis Eastern hellbender Extremely vulnerable S3 G3G4
Amphibian Scaphiopus holbrookii Spadefoot toad Extremely vulnerable S1 G5
Amphibian Ambystoma jeffersonianum Jefferson salamander Highly vulnerable S4 G4
Amphibian Pseudacris brachyphona Mountain chorus frog Highly vulnerable S1 G5
Bird Dendroica cerulean Cerulean warbler Presumed stable S4 G4
Bird Helmitheros vermivorus Worm-eating warbler Presumed stable S4 G5
Bird Vermivora chrysoptera Golden-winged warbler Increase likely S4 G4
Bird Ammodramus henslowii Henslow's sparrow Increase likely S4 G4
Bird Cygnus columbianus Tundra swan Increase likely S3 G5
Bird Vermivora pinus Blue-winged warbler Increase likely S4 G5
Bird Hylocichla mustelina Wood thrush Increase likely S5 G5
Bird Paranga olivacea Scarlet tanager Increase likely S5 G5
Bird Seiurus motacilla Louisiana waterthrush Increase likely S5 G5
Invertebrate - Cave Stygobromus stellmacki Stellmack's Cave amphipod Presumed stable S1 G1G2
Invertebrate - Cave Sphalloplana pricei Refton Cave planarian Presumed stable S1 G2G3
Invertebrate - Cave Caecidotea kenki an isopod Presumed stable S1 G3
Invertebrate - Insect Pieris virginiensis West Virginia white Highly vulnerable S2S3 G3?
Invertebrate - Insect Lycaena epixanthe Bog copper Highly vulnerable S2 G4G5
Invertebrate - Insect Pyrgus wyandot Appalachian grizzled skipper Moderately vulnerable S1 G1G2Q
Invertebrate - Insect Cicindela marginipennis Cobblestone tiger beetle Moderately vulnerable S1 G2
Invertebrate - Insect Cicindela ancocisconensis Appalachian tiger beetle Moderately vulnerable S1 G3
Invertebrate - Insect Gomphus viridifrons Green-faced clubtail Moderately vulnerable S1 G3G4
Invertebrate - Insect Gomphus quadricolor Rapids clubtail Moderately vulnerable S1S2 G3G4
Invertebrate - Insect Papaipema sp. 1 Flypoison borer moth Moderately vulnerable S2 G2G3
Invertebrate - Insect Calephelis borealis Northern metalmark Moderately vulnerable S2 G3G4
Invertebrate - Insect Speyeria idalia Regal fritillary Presumed stable S1 G3
Invertebrate - Insect Zale curema Northeastern pine zale Presumed stable S1 G3G4
Invertebrate - Insect Callophrys irus Frosted elfin Presumed stable S1S2 G3
Invertebrate - Insect Cicindela patruela Northern barrens tiger beetle Presumed stable S2S3 G3
Invertebrate - Insect Lemmeria digitalis Fingered lemmeria moth Presumed stable S2S4 G4
Invertebrate - Insect Calycopis cecrops Red-banded hairstreak Increase likely S4 G5
Mammal Myotis leibii Eastern small-footed bat Moderately vulnerable S1B,S1N G3
Mammal Neotoma magister Allegheny woodrat Moderately vulnerable S3 G3G4
Mammal Sylvilagus obscurus Appalachian cottontail Presumed stable SU G4
Mammal Lepus americanus Snowshoe hare Presumed stable S3S4 G5
Mollusk Margaritifera margaritifera Eastern pearlshell Extremely vulnerable S1 G4
Mollusk Alasmidonta heterdon Dwarf wedgemussel Highly vulnerable S1 G1G2
Mollusk Pleurobema clava Clubshell Highly vulnerable S1 G2
Mollusk Villosa fabalis Rayed bean Highly vulnerable S1 G2
Mollusk Epioblasma torulosa rangiana Northern riffleshell Highly vulnerable S2 G2
Mollusk Lampsilis cariosa Yellow lampmussel Highly vulnerable S3S4 G3G4
Plant Platanthera blephariglottis White fringed-orchid Extremely vulnerable S2S3 G4G5
Plant Oclemena nemoralis Leafy bog aster Extremely vulnerable S1 G5
Plant Scheuchzeria palustris Pod-grass Extremely vulnerable S1 G5
Plant Carex oligosperma Few-seeded sedge Extremely vulnerable S2 G5
Plant Muhlenbergia uniflora Fall dropseed muhly Extremely vulnerable S2 G5
Plant Utricularia cornuta Horned bladderwort Extremely vulnerable S2 G5
Plant Carex limosa Mud sedge Extremely vulnerable 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 Abies balsamea Balsam fir Extremely vulnerable S3 G5
Plant Picea rubens Red spruce Extremely vulnerable S4 G5
Plant Kalmia polifolia Bog laurel Extremely vulnerable S4/S5 G5
Plant Dalibarda repens Dewdrop Extremely vulnerable SNR G5
Plant Vaccinium macrocarpon Cranberry Highly vulnerable SNR G4
Plant Tipularia discolor Cranefly orchid Highly vulnerable S3 G4G5
Plant Arceuthobium pusillum Dwarf mistletoe Highly vulnerable S2 G5
Plant Carex paupercula Bog sedge Highly vulnerable S3 G5
Plant Maianthemum trifolium False Solomon's-seal Highly vulnerable S4 G5
Plant Rhododendron canadense Rhodora Highly vulnerable SNR G5
Plant Coptis trifolia Goldthread Highly vulnerable SNR G5
Plant Vaccinium oxycossos Small cranberry Highly vulnerable SNR G5
Plant Picea mariana Black spruce Highly vulnerable SNR G5
Plant Viola selkirkii Great spurred violet Highly vulnerable S3 G5?
Plant Ruellia strepens Wild limestone petunia Moderately vulnerable S2 G4G5
Plant Schoenoplectus subterminalis Water bulrush Moderately vulnerable S3 G4G5
Plant Quercus phellos Willow oak Moderately vulnerable S2 G5
Plant Bartonia paniculata Screwstem Moderately vulnerable S3 G5
Plant Juncus filiformis Thread rush Moderately vulnerable S3 G5
Plant Erythornium albidum White trout-lily Moderately vulnerable S3 G5
Plant Chamaedaphne calyculata Leatherleaf Moderately vulnerable SNR G5
Plant Cornus canadensis Bunchberry Moderately vulnerable SNR G5
Plant Rhynchospora alba White beak-rush Moderately vulnerable SNR G5
Plant Solidago uliginosa Bog goldenrod Presumed stable S3 G4G5
Plant Conoclinum coelestinum Mistflower Presumed stable S3 G5
Plant Galium latifolium Purple bedstraw Presumed stable S3 G5
Plant Rotala ramosior Toothcup Presumed stable S3 G5
Plant Salix petiolaris Meadow willow Presumed stable S4 G5
Plant Eriophorum virginicum Tawny cotton-grass Presumed stable SNR G5
Plant Prunus pumila var. depressa Eastern sand cherry Presumed stable S1 G5T5
Reptile Glyptemys muhlenbergii Bog turtle Highly vulnerable S2 G3
Reptile Clemmys guttata Spotted turtle Moderately vulnerable S3 G5
Reptile Crotalus horridus Timber rattlesnake Presumed stable S3S4 G4
Reptile Glyptemys insculpta Wood turtle Presumed stable S3S4 G4

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.