This project will produce the first regional analysis of frog call survey data from the North American Amphibian Monitoring Program (NAAMP).  Eleven years (2001-2011) of survey data from the NAAMP will be used to provide a regional trend assessment and associated analytical methods for amphibians in the northeast.  NAAMP is a collaborative effort among USGS, State Agencies, and other partners, to monitor calling amphibians using a standard, peer-reviewed protocol.