1999 | Publisher: USGS | Science Center: Fort Collins Science Center (FORT, Ft. Collins) | Format: URL
www.fort.usgs.gov — A quasi-experimental situation exists in Rocky Mountain National Park, where elk (Cervus elaphus) populations have increased 3-fold since 1968 following their release from artificial controls within the park. Increases in elk habitat use and decreases in deer habitat use were observed. Significant increases in cover of mosses and lichens occurred More...
Publisher: USGS | Science Center: Upper Midwest Environmental Sciences Center (UMESC, LaCrosse) | Format: URL
www.umesc.usgs.gov — The moose population in northwestern Minnesota has been declining for over 25 years. The U.S. Fish and Wildlife Service has identified a need to determine whether the moose decline is a result of nutrition, parasites, disease, contaminants, or a combination of those factors. In an attempt to determine the cause of death for moose in northwestern More...
Publisher: USGS | Science Center: National Wildlife Health Center (NWHC, Madison) | Format: URL
www.nwhc.usgs.gov — The ongoing pandemic of Foot-and-Mouth Disease (FMD) in Europe and other parts of the world is of great concern to the North American Agriculture Community. FMD may also pose a significant threat to North American wildlife, including white-tailed deer, other deer species, feral pigs, bison, moose, antelope, peccaries, musk ox, caribou, sheep and More...
Publisher: USGS | Science Center: Fort Collins Science Center (FORT, Ft. Collins) | Format: URL
www.fort.usgs.gov — USGS scientist Craig Allen, along with Tom Swetnam of the University of Arizona Laboratory of Tree-Ring Research, Scott Anderson of Northern Arizona University, and others, have been developing landscape-level fire histories in the Jemez and Sangre de Cristo Mountains of northern New Mexico. These histories are compiled using charcoal deposits More...
Publisher: USGS | Science Center: Fort Collins Science Center (FORT, Ft. Collins) | Format: URL
www.fort.usgs.gov — This site is in part a hybridization of two of the most popular pre-existing sites about the wild horse research. Three research and development tasks are featured, which are counting wild horses and burros by combining and field-testing aerial survey techniques (this work assists the BLM in obtaining more accurate population estimates, on which More...
Publisher: USGS | Science Center: Forest and Rangeland Ecosystem Science Center (FRESC, Corvallis) | Format: URL
fresc.usgs.gov — Biologists and managers on Washington's Olympic Peninsula, as throughout western Washington, are concerned about increased observations over the last several years of emaciated deer with symptoms of excessive hair-loss. This Web page describes a study to evaluate modern pellet-group survey methods, estimate abundance of deer and elk, identify More...
Publisher: USGS | Science Center: National Wildlife Health Center (NWHC, Madison) | Format: URL
www.nwhc.usgs.gov — Chronic wasting disease (CWD) is a disease of the nervous system in deer and elk that results in distinctive brain lesions. It continues to be a major issue for wildlife scientists throughout the Nation, and a key focus for research at the USGS National Wildlife Health Center (NWHC). Research is focused on understanding how the disease is More...
Publisher: USGS | Science Center: Northern Rocky Mountain Science Center (NRMSC, Bozeman) | Format: URL
www.nrmsc.usgs.gov — A study overview related to the role of the National Bison Range in the long-term management of Federal bison herds. This research will provide the data necessary to assess the impacts of management actions implemented under the new management plan, and examine the plan`s underlying assumptions regarding demographic responses of the Yellowstone More...