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Organisms
Living individuals that grow, reproduce, and die.
Subtopics:
Algae (16 items)
Animals (259 items)
Archaea (2 items)
Bacteria (12 items)
Fungi (5 items)
Lichens (5 items)
Plants (organisms) (24 items)
Protists (5 items)
Viruses (5 items)
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Results 1 - 10 of 307 listed alphabetically [list by similarity]
PDF A Neotropical Migrant Bird's Dilemma - Where to Stop for a Good Meal [More info]
Studying 28 species of warblers, flycatchers, tanagers, and vireos, we find the birds relied on the flowering of honey mesquite to detect the availability of insects they eat.
PDF Acid rain effects on Adirondack streams - results from the 2003-05 western Adirondack stream survey (the WASS Project) [More info]
Acidified soils caused toxic aluminum in 66 percent of 565 assessed streams. Diatoms and aquatic macroinvertebrates were moderately to severely affected. These effects have not improved in areas surveyed in the early 1980s
Alaska Science Center - Biological Science Office [More info]
Research on birds, mammals, ecosystems and habitats, fish and fisheries in Alaska
PDF Algal toxins [More info]
Chapter of Field Manual of Wildlife Diseases on algal toxins, red tide toxins, phycotoxins, dinoflagellates, cyanobacterium, and bird mortality due to algal toxicosis.
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
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.
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.
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