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Full-Text Articles in Life Sciences
Effects Of Environmental And Anthropogenic Factors On The Range Contraction Of Bird And Mammal Species, Patrice M. Betz
Effects Of Environmental And Anthropogenic Factors On The Range Contraction Of Bird And Mammal Species, Patrice M. Betz
Master's Theses
The largest contributor to biodiversity loss is habitat destruction caused by humans. A common consequence of habitat destruction is a reduction in the geographic range of a species. Little research has been done to separate the contribution of anthropogenic and environmental variables to the extinction or persistence of species that have experienced range contraction. In this thesis, I examined the relative effects of several variables (elevation, mean annual precipitation, mean annual temperature, human population density, distance from roads, and proportion of land converted to built-up land, cropland, and rangeland) on the geographic ranges of declining bird and mammal species from …
Occupancy Modeling Of Herpetofauna And Grassland Nesting Birds At Quivira National Wildlife Refuge, Kasandra A. Brown
Occupancy Modeling Of Herpetofauna And Grassland Nesting Birds At Quivira National Wildlife Refuge, Kasandra A. Brown
Master's Theses
Only about 11% of native grasslands remain in the United States (North America Bird Conservation Initiative, 2011). Grasslands are a considerable source of biodiversity and play a crucial role in nutrient cycling (Suttie et al. 2005; Holechek et al. 2011). Stewards, such as the US Fish and Wildlife Service, are essential to grassland conservation, especially in Kansas, where less than one percent of land is under federal stewardship or public trust (Holechek et al. 2011). Quivira National Wildlife Refuge, an 8,900 hectare refuge located in Stafford County, has traditionally been managed as a stopover for migratory birds, but is now …
Population Structure And Habitat Association Of Aquatic Testudines In Quivira National Wildlife Refuge, Jeffrey T. Seim
Population Structure And Habitat Association Of Aquatic Testudines In Quivira National Wildlife Refuge, Jeffrey T. Seim
Master's Theses
I researched aquatic turtle population structure and habitat association of the turtles of Quivira National Wildlife Refuge (QNWR), in central Kansas. This group of organisms was focused on because of the lack of baseline knowledge and understanding of species presences, population sizes, structure, or habitat use on the refuge. I selected wetland units for sampling based on water permanence and quality of habitat. I then deployed baited hoop traps on these wetland units from April 24 to July 4, 2015. Captures were identified to species, measured, marked, and then release. Schnabel Multiple Census Method and Combined Percent Estimates were used …