Home to at least 14 amphibian species!
We monitor wetlands and streams at Prince William Forest Park. Field teams visit wetlands and streams, recording which amphibian species they observe and in which sites. Looking across all sites in a park, they generate a measure of species “occupancy," that shows what proportion of sites are occupied by a particular species.
We want to know, “is there a change in occupancy over time?"
Wetland amphibians: Occupancy trends
As of 2021, we have observed 14 species (see figure 1). Closely related gray treefrog species are grouped together as a species "complex."
Source: U.S. Department of the Interior, National Park Service
