The way animals act or react to conditions in the environment and to other organisms, including life patterns such as migration, hibernation, and nocturnal living.
Improving strategies to assess competitive effects of barred owls on northern spotted owls in the Pacific Northwest [ More info] A scientific study has determined that survey methods designed for spotted owls do not always detect barred owls that are actually present in spotted owl habitat.
Management and Research Applications of Long-range Surveillance Radar Data for Birds, Bats, and Flying Insects [ More info] Explains how radar can be used to measure the density, speed, direction, altitude, and location of flocks of animals in flight.
Noninvasive methods for monitoring bear population trends [ More info] We estimate population growth rates by collecting hair at natural bear rubs along trails, roads, and fence and power lines, and analyzing the DNA from the hair.
Pacific Walrus Response to Arctic Sea Ice Losses [ More info] Radio-tracking indicates that walruses will exploit sparse ice to maintain access to preferred foraging areas over the continental shelf.
Polar Bear research at the Alaska Science Center [ More info] Ecological studies of polar bears including population dynamics, dependence on sea ice, and tracking methods.
Prehistoric packrats piled up clues to climate change [ More info] Hoarding behavior preserved prehistoric materials we can use as clues to ancient climate and ecosystem changes.
Satellite tracking and geospatial analysis of feral swine and their habitat use in Louisiana and Mississippi [ More info] Invasive pigs first introduced to the continental United States in the 1500s by European explorers. Using tracking collars, we have begun to discover where these troublesome animals go.
Sea otter research at Western Ecological Research Center (WERC) [ More info] Webpage on research on sea otters (Euhydra lutris) in the nearshore environment of the eastern Pacific Ocean with information on status of otters on the coast of Alaska, Washington, and California and link to fact sheet in PDF format.
Sturgeon research update: Confirmed pallid sturgeon spawning in the Missouri River in 2007 [ More info] Combined with supporting research in reproductive physiology, identification of spawning habitat, and early life history this result provides new understanding of environmental factors that might affect reproduction of this endangered species.
Summary and analysis of the U.S. government bat banding program [ More info] Analysis of the program with a detailed study of the best collection of data available from it. Includes recommendations for future studies of bats.
Alphabetical Index of Topics
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