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Organisms
Living individuals that grow, reproduce, and die.
Subtopics:
Algae (8 items)
Animals (197 items)
Archaea (2 items)
Bacteria (9 items)
Fungi (5 items)
Lichens (6 items)
Plants (organisms) (23 items)
Protists (1 items)
Viruses (6 items)
Related topics:
Results 121 - 130 of 228 listed by similarity [list alphabetically]
Hydrologic studies in the Upper Klamath Basin, Oregon [New Window]
Overview of Klamath ecological research and links to USGS Klamath studies on ground water, nutrients, sediment oxygen demand, and fish response to water quality, sucker ecology, publications, bibliographies, and data.
Identifying predators and fates of grassland passerine nests using miniature video cameras [New Window]
Description of the use of a miniature video-camera system deployed at nests of passerine species in North Dakota to videotape predation of eggs or nestlings by animals such as mice, ground squirrels, deer, cowbirds and others.
Identifying sources of fecal coliform bacteria in selected streams on Virginia's Total Maximum Daily Loads (TMDL) priority list [New Window]
Describes project to identify sources of fecal coliform bacteria by ribotyping to develop the use of Maximum Daily Load (TMDL) values for contaminated stream segments in Virginia.
PDF Illustrated field guide for assessing external and internal anomalies in fish [New Window]
Links to PDF version of the field guide.
Impounded river systems [New Window]
Article from Status and Trends of the Nation's Biological Resources on the serious impacts to river systems due to damming and flow regulation, and rehabilitation, monitoring, and research on such rivers.
Information on fossils and fossil collecting [New Window]
Links to general interest publications, special references, and other sources for fossil and fossil collecting information.
Insects, arachnids, & annelids [New Window]
Website for links to USGS and non-USGS websites with information on insects, arachnids, and annelids suitable for students and arranged by grade levels.
Interagency Grizzly Bear Study Team (IGBST) [New Window]
Description of research program for immediate and long-term management of grizzly bears (Ursus arctos horribilis) inhabiting the Greater Yellowstone Ecosystem. Includes links to reports in PDF format and cooperating organizations.
Invasive Species Program -- Snakeheads, aquatic invaders [New Window]
On-line version of a USGS Fact Sheet describing Snakeheads, aggressive airbreathing freshwater fishes that are not native to North America. Snakeheads are considered injurious to certain native North American fish and other aquatic wildlife.
Lake Clark sockeye salmon research projects [New Window]
Summary of research on salmon fish resources in the Lake Clark area in Alaska with links to scientific projects, Native Alaskan intern program, lake core analysis, radio telemetry, genetics, subsistence fishing, and research staff.
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