Chiricahua Leopard Frog

Photo credit: Brent Sigafus

Photo credit: Brent Sigafus

In collaboration with the Amphibian Research and Monitoring Initiative (ARMI), we are applying (and extending) metapopulation theory to assess extinction risk faced by the Federally listed Chiricahua leopard frog (Lithobates chiricahuensis) under different climate and management scenarios. We work on a metapopulation consisting of approximately 180 wetlands located in the Altar Valley of southern Arizona. Several management options exist for increasing metapopulation viability, including modification of existing wetlands or establishment of new sites. We are fitting models to data to quantify how these actions will affect extinction probability, and to identify optimal locations for establishing new sites.

Colonization dynamics

Estimated colonization dynamics following reintroduction, from Chandler et al. (2015)

Collaborators

Erin Muths, USGS Fort Collins Science Center

Blake Hossack, USGS Northern Rocky Mountain Science Center

Michael J. Sredl, AZ Game and Fish Department

Brent Sigafus, USGS Sonoran Desert Research Station