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Articles 1 - 6 of 6
Full-Text Articles in Life Sciences
Nesting Ecology Of Greater Sage-Grouse Centrocercus Urophasianus At The Eastern Edge Of Their Historic Distribution, Katie M. Herman-Brunson, Kent C. Jensen, Nicholas W. Kaczor, Christopher C. Swanson, Mark A. Rumble, Robert W. Klaver
Nesting Ecology Of Greater Sage-Grouse Centrocercus Urophasianus At The Eastern Edge Of Their Historic Distribution, Katie M. Herman-Brunson, Kent C. Jensen, Nicholas W. Kaczor, Christopher C. Swanson, Mark A. Rumble, Robert W. Klaver
Natural Resource Management Faculty Publications
Greater sage-grouse Centrocercus urophasianus populations in North Dakota declined approximately 67% between 1965 and 2003, and the species is listed as a Priority Level 1 Species of Special Concern by the North Dakota Game and Fish Department. The habitat and ecology of the species at the eastern edge of its historical range is largely unknown. We investigated nest site selection by greater sage-grouse and nest survival in North Dakota during 2005 - 2006. Sage-grouse selected nest sites in sagebrush Artemisia spp. with more total vegetative cover, greater sagebrush density, and greater 1-m visual obstruction from the nest than at random …
Dietary Response Of Sympatric Deer To Fire Using Stable Isotope Analysis Of Liver Tissue, W.D. Walter, T. J. Zimmerman, D. M. Leslie Jr., J. A. Jenks
Dietary Response Of Sympatric Deer To Fire Using Stable Isotope Analysis Of Liver Tissue, W.D. Walter, T. J. Zimmerman, D. M. Leslie Jr., J. A. Jenks
Natural Resource Management Faculty Publications
Carbon (δ13C) and nitrogen (δ15N) isotopes in biological samples from large herbivores identify photosynthetic pathways (C3 vs. C4 ) of plants they consumed and can elucidate potential nutritional characteristics of dietary selection. Because large herbivores consume a diversity of forage types, δ13C and δ15N in their tissue can index ingested and assimilated diets through time. We assessed δ13C and δ15N in metabolically active liver tissue of sympatric mule deer (Odocoileus hemionus) and white-tailed deer (O. virginianus) to identify dietary disparity resulting from use of burned and unburned areas in a largely forested landscape. Interspecific variation in dietary disparity of deer …
Molt Migration By Giant Canada Geese In Eastern South Dakota, Charles D. Dieter, Bobby J. Anderson
Molt Migration By Giant Canada Geese In Eastern South Dakota, Charles D. Dieter, Bobby J. Anderson
Natural Resource Management Faculty Publications
We captured giant Canada geese (Branta canadensis maxima) in 7 counties in eastern South Dakota during the summer molting period, 2000–2003. We attached very high frequency (VHF) transmitters to 150 adult female geese with brood patches, and leg bands to 3,839 geese. We documented molt migrations using VHF telemetry and indirect band recovery at locations north of South Dakota. Telemetry of radio-collared female geese during the breeding season indicated that 56% of nonbreeders, 81% of unsuccessful breeders, and 19% of successful female breeders embarked on a molt migration. Five of 34 geese that underwent molt migrations moved to …
Planted Grasslands And Native Sod Prairie: Equivalent Habitat For Grassland Birds, Kristel K. Bakker, Kenneth F. Higgins
Planted Grasslands And Native Sod Prairie: Equivalent Habitat For Grassland Birds, Kristel K. Bakker, Kenneth F. Higgins
Natural Resource Management Faculty Publications
Little is known about how avian relationships to tracts of native sod prairie compare with avian relationships to single and multiple species of cool- and warm-season grassland plantings. We compared grassland bird species richness and density in 5 grassland cover types (n = 97) in the tallgrass prairie region of eastern South Dakota and western Minnesota, 2001–2004. Grassland bird species richness was significantly higher in native sod prairies than it was in all planted cover types except warm-season mixes. Grasslands dominated by exotic species did not support as many grassland bird species or have species densities as high as grasslands …
Dietery Response Of Sympatric Deer To Fire Using Stable Isotope Analysis Of Liver Tissue, W. D. Walter, T. J. Zimmerman, D. M. Leslie Jr., J. A. Jenks
Dietery Response Of Sympatric Deer To Fire Using Stable Isotope Analysis Of Liver Tissue, W. D. Walter, T. J. Zimmerman, D. M. Leslie Jr., J. A. Jenks
Natural Resource Management Faculty Publications
Carbon (δ13C) and nitrogen (δ15N) isotopes in biological samples from large herbivores identify photosynthetic pathways (C3 vs. C4 ) of plants they consumed and can elucidate potential nutritional characteristics of dietary selection. Because large herbivores consume a diversity of forage types, δ13C and δ15N in their tissue can index ingested and assimilated diets through time. We assessed δ13C and δ15N in metabolically active liver tissue of sympatric mule deer (Odocoileus hemionus) and white-tailed deer (O. virginianus) to identify dietary disparity resulting from use of burned and unburned areas in a largely forested landscape. Interspecific variation in dietary disparity of deer …
Performance Characteristics Of Nile Tilapia (Oreochromis Niloticus) Fed Diets Containing Graded Levels Of Fuel-Based Distllers Dried Grains With Solubles, T. W. Schaeffer, M. L. Brown, K. A. Rosentrater
Performance Characteristics Of Nile Tilapia (Oreochromis Niloticus) Fed Diets Containing Graded Levels Of Fuel-Based Distllers Dried Grains With Solubles, T. W. Schaeffer, M. L. Brown, K. A. Rosentrater
Natural Resource Management Faculty Publications
A feeding trial was performed to investigate levels of corn-based Distillers Dried Grains with solubles (DDGS), a co-product of fuel ethanol manufacturing, used as a nutrient source for juvenile Nile tilapia (Oreochromis niloticus). Three isocaloric (15.7±0.7 MJ kg-1 dry matter), isonitrogenous (29.6±1.0% crude protein) experimental diets were formulated to contain 20, 30 and 40% DDGS; a commercial diet containing fishmeal was used as a reference diet. Glass aquaria (110 L) were stocked with Nile tilapia (mean weight = 6.7 g) with four replicates per diet. Weight gains, conversion ratios and hepatosomatic indices did not significantly differ between …