The Pennsylvania Natural Heritage Program (PNHP) inventories and maintains a list of ecologically significant species and communities. This list represents the most up-to-date, accurate scientific information available and reflects current nomenclature. The decisions regarding rank and status are made by a state-recognized panel of experts of the PA Biological Society. The PNHP list of species is the basis for Environmental Review, or the Pennsylvania Natural Diversity Inventory (PNDI).
Search: Reptiles & Amphibians Birds Fish Mammals Insects and Spiders Mussels and Snails Plants Communities Geology Lichens -- All Species --
Fact Sheets (The following links may be available for each species.)
Definitions of the status and rank codes can be found here.