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Amphibians
Vertebrates of the class Amphibia including frogs and toads (Anura), salamanders (Urodela), caecilians (Apoda) and extinct forms which are cold-blooded and have life stages in water as eggs and larval forms (tadpoles)until they metamorphose as adults.
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Results 1 - 26 of 26 listed by similarity [list alphabetically]
Amphibian declines and deformities [More info]
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.
Amphibian malformation and decline [More info]
Frog malformation studies at the USGS National Wildlife Health Center in Madison, Wisconsin to document scope and to determine the causes of the observed malformations.
PDF Amphibian monitoring in the Atchafalaya Basin [More info]
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.
Amphibian Research and Monitoring Initiative [More info]
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
Amphibians & reptiles of the southeastern United States and the U.S. Virgin Islands [More info]
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.
PDF Amphibians of Olympic National Park [More info]
Fact sheet (PDF format) on amphibians in Olympic National Park and overview of the habitat, the decline in populations, and rare amphibians in the Pacific Northwest including the giant salamander and tailed frog.
Biological resource status and trends: Amphibians [More info]
Information concerning status and trends of biological resources, focusing on Amphibians
Detecting Amphibian-Killing Fungus Helps Scientists Study Amphibian Declines [More info]
Research findings and examples of application to real problems--a new method to track down amphibian disease in the environment.
Farm ponds as critical habitats for native amphibians [More info]
Constructed farm ponds represent significant breeding, rearing, and overwintering habitat for amphibians in the Driftless Area Ecoregion of Minnesota, Wisconsin, and Iowa. Links to fact sheet, brochure, annual reports, field manual, and final report.
Field guide to amphibian larvae and eggs of Minnesota, Wisconsin, and Iowa [More info]
Field guide to identify amphibian species from the larvae and eggs. Available to download in Adobe PDF or UMESC format.
Field guide to the reptiles and amphibians of coastal Southern California [More info]
Field guide to identify the reptiles and amphibians of coastal Southern California with glossary and map.
Nonindigenous amphibian distribution information [More info]
Descriptions of amphibians and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on amphibians.
North American Amphibian Monitoring Program (NAAMP) [More info]
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.
Radio-tracking amphibians: lessons from implant and external attachment procedures [More info]
Paper from Forum on Wildlife Telemetry, Snowmass Village, CO, 1997, describes technique for implanting radio-transmitters for tracking amphibians such as frogs with telemetry.
Southeastern Amphibian Research and Monitoring Initiative [More info]
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.
The state of amphibians in the United States [More info]
Evidence leading us to conclude that amphibians are declining, along with explanatory factors in the environment and notes on conservation.
The U.S. Geological Survey Amphibian Research and Monitoring Initiative-2011 Annual Update [More info]
Amphibians are declining throughout the US. Here we explain how we monitor amphibians and why, along with some of the results we have obtained.
Biological resource status and trends: Frogs and toads [More info]
Information concerning status and trends of biological resources, focusing on frogs and toads
Biological resource status and trends: Salamanders [More info]
Information concerning status and trends of biological resources, focusing on salamanders
Current research at the Patuxent Wildlife Research Center [More info]
Search interface for current research activities at the Patuxent Wildlife Research Center, located in Maryland north of Washington DC
EverView Data Viewer [More info]
Software and data to help people model the likely response of populations of organisms to various strategies that might be employed to remedy the effects of damaged ecosystems.
Patuxent Fact Sheets [More info]
Access to Patuxent Wildlife Research Center fact sheets (PDFs) providing summaries of center studies on coastal ecosystems, birds, amphibians, taxonomy and other subjects and on center activities including partners and volunteer program.
Patuxent Wildlife Research Center monitoring projects [More info]
Biomonitoring projects studying the status and trends of the nation's environmental resources and programs studying amphibians and birds. Links to long-term programs, resources and references, and related links.
Southeast Ecological Science Center [More info]
Science center in Florida focusing on amphibians and reptiles, coastal ecology, contaminants and ecotoxicology, imperiled fish, manatees, and invasive species
Southeast Ecological Science Center - Welcome to the kid's corner [More info]
Children's website on southern Florida aquatic biology with short movie clips of amphibians, games & puzzles, wildlife pictures, teacher resources, and more.
Tadpoles of the United States and Canada: a tutorial and key [More info]
Key and tutorial to identify species of tadpoles from North America with color photographs.
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