Pennsylvania-responsibility species


Pennsylvania-responsibility species (the term may also refer to subspecies or varieties) is one for which Pennsylvania plays a key role in sustaining its global security by hosting at least 10% of its North American population or encompassing at least 25% of its North American range. Pennsylvania-endemic species are a special subgroup, consisting of species whose entire known ranges lie within the borders of the state. Unless or until they are found in other states, Pennsylvania-endemic species include Snetsinger’s purseweb spider (Atypus snetsingeri), flypoison bulb-borer moth (Papaipema sp. 1), Powdermill forestfly (Soyedina merritti), Refton Cave planarian (Sphalloplana pricei) and Stellmack’s cave amphipod (Stygobromus stellmacki).


To see photos of examples of Pennsylvania-responsibility species, click on the thumbnails below or watch the slide show on the home page.


Monongahela crayfish Cambarus monongalensis ©Roger Earl Latham
northeastern bulrush Scirpus ancistrochaetus ©Arthur Haines
golden-winged warbler Vermivora chrysoptera ©www.briansmallphoto.com
bog turtle Glyptemys muhlenbergii George Grall ©National Aquarium
northern long-eared bat Myotis septentrionalis ©Phil Swanson
Loyalhanna lichen ©James Shaulis
American globeflower Trollius laxus ©Ann F. Rhoads
Chesapeake logperch Percina bimaculata ©Rob Criswell
flypoison bulb-borer moth Papaipema sp. 1 ©Roger Earl Latham
wood thrush Hylocichla mustelina ©Ed Schneider www.edschneiderphotography.com
shorthead garter snake Thamnophis brachystoma ©David Badger
Virginia mallow Sida hermaphrodita ©Jim McCormac
Wyandot grizzled skipper Pyrgus centaureae wyandot © Jeffrey S. Pippen
scarlet tanager Piranga olivacea www.animalspot.net
mountain chorus frog Pseudacris brachyphona ©Paul Sattler Virginia Herp Soc
Kates Mountain clover Trifolium virginicum ©Roger Earl Latham
timber rattlesnake Crotalus horridus ©Richard Sanderson
Allegheny woodrat Neotoma magister ©Cal Butchkoski
worm-eating warbler Helmitheros vermivorum ©Danny Bonilla
serpentine aster Symphyotrichum depauperatum ©Roger Earl Latham
eastern regal fritillary Speyeria idalia idalia ©Bill Bouton
checkered sculpin Cottus n.sp. ©Rob Criswell
spreading rockcress Arabis patens ©John R. Gwaltney www.southeasternflora.com
crayfish Cambarus (Puncticambarus) sp. ©Jim Fetzner
hellbender Cryptobranchus alleganiensis ©Mike Pinder
Henslow’s sparrow Ammodramus henslowii ©Howard B. Eskin
lichen Opegrapha bicolor ©James Lendemer
Snetsinger's purseweb spider Atypus snetsingeri ©Marie L. Schmidt
glade spurge Euphorbia purpurea ©Alan Cressler
northern coal skink Eumeces anthracinus ©David Badger
tundra swan Cygnus columbianus ©Willard C. Hill
freshwater pearl mussel Margaritifera margaritifera Joel Berglund
American climbing fern Lygodium palmatum Lucien Taylor ©NE Wildflower Soc
green-faced clubtail Gomphus viridifrons ©Jeffrey S. Pippen
streamline chub Erimystax dissimilis ©Rob Criswell
cerulean warbler Dendroica cerulea Wikimedia Commons
isopod Caecidotea kenki ©W. K. Jones
Monongahela Barbara’s-buttons Marshallia grandiflora Wikimedia Commons


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     Webmaster: Roger Latham