Amphibians and Reptiles

These species inhabit both aquatic and land ecosystems and play a vital role in connecting these two systems together. For both amphibians and reptiles, species exist that fall into the predator and prey categories in the food chain.

 

A photo collage of amphibians observed in the park. Top left- Wood frog; Top right- American toad; Bottom center- American toad.

NPS photos.

What’s Been Identified:
A field survey completed in 2015 identified numerous amphibian and reptile species within the park. They can be observed inhabiting eleven general habitat types including woodlands, along streams, in marshes, and near rock structures. Currently, no venomous snakes have been observed within the park, but we know two venomous snake species - the Northern Copperhead and the Timber Rattlesnake - have been observed within Delaware and Pennsylvania.

• Total Observed Amphibians: 14 amphibian species, including 6 salamander species, 1 newt species, 1 toad and 6 frog species.
• Total Observed Reptiles: 13 reptile species, including 5 turtle species and 8 snake species.

 

Threats:
Amphibian and reptile species across the globe face threats from known and unknown sources (Gibbons, et al., 2000). Generally speaking, significant threats to species populations include: habitat loss and degradation; introducing invasive species to habitats; environmental pollution; disease; unsustainable use; and global climate change. More detailed information can be found at https://www.nps.gov/articles/reptiles-and-amphibians-threats.htm.