Patuxent Wildlife Research Center
Patuxent Wildlife Research Center scientists are currently conducting research on a wide variety of scientific topics. To view and search Patuxent's projects and other work by USGS staff, click on the following link: Research Topics.
Museum Collections - Acquisition and curation of scientific reference specimens (in partnership with the Smithsonian Institution)
North American Amphibian Monitoring Program - a collaborative effort among regional partners and the USGS to monitor populations of vocal amphibians using a calling survey technique
Northeast Amphibian Research and Monitoring Initiative - Patuxent participates in this intensive, long-term monitoring and related research on pond-breeding and stream-breeding amphibians on Department of Interior lands throughout the northeastern United States.
National Amphibian Atlas - county-based distribution maps of all amphibians known to occur in the United States
Frog Call Quiz - a resource for learning frog call identification skills for species of the eastern United States
Measuring and Monitoring Biological Diversity - Standard Methods for Amphibians
Population Analysis Software - a variety of downloadable, statistical tools for analyzing bird or other population data
Snake Species of the World - A Taxonomic and Geographical Reference
Species Identification Tools - some information to help in species identification
Tadpoles of the United States and Canada: A Tutorial and Key - A key for the tadpoles of the United States and Canada features a different format and approach to identifying frog larvae.
The Diamondback Terrapin in the Chesapeake Bay (PDF Format) - science brief about Patuxent's Diamondback Terrapin research
Primenet Amphibian Project at Shenandoah and Big Bend National Parks