Northeast State of the Frogs: Development of Regional Analysis for Frog Call Survey Data from the North American Amphibian Monitoring Program

frog calls, toad calls, Patuxent wildlife research center
Hyla versicolor
Pseudacris c. crucifer

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.  NAAMP is active in over 20 states, including 11 northeastern states (Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, Hudson region of New York, Pennsylvania, Vermont, Virginia, and West Virginia).  This project will develop the modeling and trend assessment framework for regional reporting, resulting in the first regional level analysis using NAAMP data.  In addition, this framework will become the methodology for future reporting on NAAMP results.

This RCN project addresses the RCN Topic 6: Design and implement monitoring protocols, measures, and indicators for NE Species of Greatest Conservation Need (SGCN) and targets one of the preferred taxonomic groups, amphibians.  There are 30 species of frogs and toads in the Northeast.  We anticipate being able to report occupancy trends for 18, with the majority of omitted species being restricted to southeastern Virginia.  Of the 18 species, 12 are SGCN in one or more northeastern states.  In addition, Northeast Partners in Amphibian and Reptile Conservation (NEPARC) has proposed 7 of these species as "high responsibilty" for the Northeast.

UPDATE (Feb 2015)

This project is completed and the final report is provided below.

Progress Reports

Project Leader

Name: Linda Weir

Title: Wildlife Biologist

Organization: USGS Patuxent Wildlife Research Center


Address: 12100 Beech Forest Road, Laurel, MD 20708-4038

Phone: 301-497-5932

Fax: 301-497-5784

Other Principal Investigators

Name: J. Andrew Royle, Ph.D

Title: Research Statistician

Organization: USGS Patuxent Wildlife Research Center


Address: 12100 Laurel Beach Forest Road, Laurel, MD 20708

Phone: 301-497-5846

Fax: 301-497-5784