Research Briefs

Research
Northern leopard frog distribution and abundance

Species concerned: Northern leopard frog Rana pipiens (state endangered species).

Lead Investigator: Steve Germaine, Science Division, Wildlife Program.

Purpose of research: Collect data on the distribution and abundance of leopard frogs during winter, breeding and post-breeding seasons at Potholes Reservoir, one of only two sites leopard frogs now occur in WA. Relate abundance and reproductive success to environmental factors including habitat condition, hydroperiod, spatial distribution of seasonally-used habitats and non-native predators. Use information from this study to inform reclaimation efforts, leading to leopard frog reintroductions into historically occupied areas that have suffered environmental degradation.

Geographic area: Potholes Reservoir and associated drainages in Grant County.

Timeframe of study: Phase 1 May 2002 to December 2004.

Joint partners: U.S. Department of the Interior, Bureau of Reclamation, Washington Department of Natural Resources.

Funding: USDI State Wildlife Grants Program.

Are volunteers needed: Yes. Contact Steve Germaine, WDFW Wildlife Program, at (360) 902-2499.