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Social and Behavioral Sciences Commons™
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Full-Text Articles in Social and Behavioral Sciences
Ecology Of Small Mammals, Vegetation, And Avian Nest Survival On Private Rangelands In Nebraska, Kent A. Fricke, Silka L.F. Kempema, Larkin A. Powell
Ecology Of Small Mammals, Vegetation, And Avian Nest Survival On Private Rangelands In Nebraska, Kent A. Fricke, Silka L.F. Kempema, Larkin A. Powell
Great Plains Research: A Journal of Natural and Social Sciences
Small mammals can be an important bioindicator of ecosystem health. They serve as both predator and prey in many ecosystems. By means of live trapping and nest monitoring, we studied the ecological relationships between small mammals, avian nest survival, and vegetation composition and structure on six private ranches in the Sandhills of Nebraska during 2004. Our study documented six species (132 captures) of small mammals, and we monitored 139 bird nests. Pastures with high small-mammal populations did not suffer higher nest mortality, indicating that small-mammal abundance does not predict avian productivity. We found several vegetation characteristics that influenced small-mammal abundance …
Regional Dynamics Of Grassland Change In The Western Great Plains, Mark A. Drummond
Regional Dynamics Of Grassland Change In The Western Great Plains, Mark A. Drummond
Great Plains Research: A Journal of Natural and Social Sciences
This paper examines the contemporary land-cover changes in two western Great Plains ecoregions between 1973 and 2000. Agriculture and other land uses can have a substantial effect on grassland cover that varies regionally depending on the primary driving forces of change. In order to better understand change, the rates, types, and causes of land conversion were examined for 1973, 1980, 1986, 1992, and 2000 using Landsat satellite data and a statistical sampling strategy. The overall estimated rate of land-cover change between 1973 and 2000 was 7.4% in the Northwestern Great Plains and 11.5% in the Western High Plains. Trends in …