Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Physical Sciences and Mathematics
Raptor Use Of The Idaho National Engineering Laboratory, Richard Wayne Hansen
Raptor Use Of The Idaho National Engineering Laboratory, Richard Wayne Hansen
Electronic Theses and Dissertations
Raptors are high trophic-level predators, and thus sensitive to environmental change. I conducted a basic ecological study of raptors using the Idaho National Environmental Laboratory (INEL), in southeastern Idaho, between 1991 and 1993 to assess effects of human activity on the site. Results were compared to previous raptor studies conducted on the INEL from 1974-1976 and in 1982, as well as with studies of rough-legged hawks, long-eared owls, and burrowing owls conducted during the late 1970’s and early 1980’s. Road-side raptor surveys were conducted from January through May in 1992 and 1993. Principle species recorded were rough-legged hawks, red-tailed hawks, …
Winter/Spring Population Characteristics Of White-Tailed Deer In An Agricultural/Wetland Complex In Northeastern South Dakota, Brian J. Kernohan
Winter/Spring Population Characteristics Of White-Tailed Deer In An Agricultural/Wetland Complex In Northeastern South Dakota, Brian J. Kernohan
Electronic Theses and Dissertations
Habitat preference, cover characteristics of corn, movements, and sexual segregation patterns of white-tailed deer (Odocoileus virginianus) were evaluated at Sand Lake National Wildlife Refuge (SLNWR) in winter (January - March) and spring (April - June), 1993 and 1994. An average of 20 radio-collared deer were monitored per season, which resulted in 4, 058 relocations. Habitat preference was assessed using 95 and 50% home range contours that were estimated using an adaptive kernel method. Agricultural crops (i.e., corn [Zea mays], row crops other than corn [e.g., soybeans [Glycine max]], small grains [e. g., wheat [Triticum aestivum]], and alfalfa [Medicago sativa]) were …
Winter Diet And Nutritional Condition Of White-Tailed Deer In The Northern Black Hills, South Dakota, Robert G. Osborn
Winter Diet And Nutritional Condition Of White-Tailed Deer In The Northern Black Hills, South Dakota, Robert G. Osborn
Electronic Theses and Dissertations
Habitat deterioration in the northern Black Hills (NBH) of South Dakota may be responsible for declining white-tailed deer (Odocoileus virginianus) population levels (Griffin et al. 1992). Because of the relationship between habitat and nutrition, a two-year research project was initiated in January 1992 to evaluate the physical and nutritional condition of white-tailed deer inhabiting five NBH winter subranges. Habitat variables were measured at 100 random locations on each study area. Pellet groups were collected throughout each study area at two-week intervals during January, February, and March 1992 and 1993. Five female white-tailed deer were collected from each study area in …