Amphibian population declines and deformities due to various causes including land use change, viruses, and fungi. Links to USGS press releases, answers to FAQs (HTML and PDF versions) and photos with downloadable files.
They're abundant in this area, but hard to count reliably. We outline a procedure for estimating the population sizes so that we can determine whether they're increasing or dwindling. We must both listen for their calls and visually confirm them.
Homepage for the Dept. of the Interior's Initiative coordinated by the USGS, for amphibian (frogs, toads, salamanders and newts) monitoring, research, and conservation. Links to National Atlas for Amphibian Distribution, photos, and interactive map serve
Links to information on species of frogs, toads, and salamanders located in the southeastern United States and the U.S. Virgin Islands, with information on appearance, habitats, calls, and status, plus photos, glossary, and provisional data.
Manual for research program on the nesting habits of sea turtles of the Virgin Islands, with descriptions of species, nesting behavior, observation methods, record keeping, tagging, and tissue sample collection. (PDF file, 121 pp.)
Website for the Columbia Environmental Research Center with links to staff, publications, databases, field stations, and projects including those on the Rio Grande, burrowing owls, sea turtles, and geospatial technology.
Locations for nine species of large constrictors, from published sources, along with monthly precipitation and average monthly temperature for those locations. Shapefiles for each snake species studied.
The North American Amphibian Monitoring Program (NAAMP) is a long-term monitoring program designed to track the status and trends of frog and toad populations with links to data access, protocol, and how to volunteer as an observer.
Overview of the Southeastern Amphibian Research and Monitoring Initiative, annual report, field methods and protocols, statistical design and analysis, glossary, projects, and lists of frogs, toads and salamanders.
Links to research at the field stations of the Western Ecological Research Center with direct links to web pages for wildlife videos, satellite telemetry, fire ecology, invasive species, herpetology field guide, and coastal ecosystems.