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is a multi-agency effort to increase access to data on biological resources in the U.S. Topics include plants, habitats, and ecolological issues. Learn about amphibians, coral reefs, deserts, forests, mountains, prairies, tundras, wetlands, bird conservation, fire management, genetic diversity, invasive species, pollinators, endangered species, and wildlife diseases. Examine topics from regional and geographic perspectives. (National Biological Information Infrastructure, U.S. Geological Survey)
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Amphibian populations are in decline in many areas of the world. In cities and the countryside, in rainforests and wetlands, countless areas which previously hosted a range of healthy amphibian populations now have fewer -- and even no -- frogs, toads, and salamanders. |
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Coral reefs |
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