Kathleen Longshore (Former Employee)
Science and Products
Filter Total Items: 33
Fifty years after Welles and Welles: Distribution and genetic structure of Desert Bighorn Sheep in Death Valley National Park Fifty years after Welles and Welles: Distribution and genetic structure of Desert Bighorn Sheep in Death Valley National Park
The status of desert bighorn sheep (Ovis canadensis nelsoni) populations in the mountains around Death Valley was first evaluated in 1938, shortly after designation of Death Valley National Monument. However, the most comprehensive evaluation of bighorn sheep in the region was conducted by Ralph and Florence Welles during 1955-1961. They documented patterns of use at water sources and...
Authors
Clinton W. Epps, John D. Wehausen, William B. Sloan, Stacy Holt, Tyler G. Creech, Rachel S. Crowhurst, Jef R. Jaeger, Kathleen M. Longshore, Ryan J. Monello
Estimates of density, detection probability, and factors influencing detection of burrowing owls in the Mojave Desert Estimates of density, detection probability, and factors influencing detection of burrowing owls in the Mojave Desert
We estimated relative abundance and density of Western Burrowing Owls (Athene cunicularia hypugaea) at two sites in the Mojave Desert (200304). We made modifications to previously established Burrowing Owl survey techniques for use in desert shrublands and evaluated several factors that might influence the detection of owls. We tested the effectiveness of the call-broadcast technique for...
Authors
D.E. Crowe, K.M. Longshore
Nocturnal movements of desert bighorn sheep in the Muddy Mountains, Nevada Nocturnal movements of desert bighorn sheep in the Muddy Mountains, Nevada
Adequate management of a species requires complete knowledge of its ecology, including both nocturnal and diurnal behavior. Knowledge of the movement behavior of bighorn sheep can provide insight for understanding spatial population processes as the combined result of individual behavior, physiological constraints, and fine-scale environmental influences. However, because of past...
Authors
Kathleen M. Longshore, Chris E. Lowrey, Matthew Jeffress, Daniel B. Thompson
Compensating for diminishing natural water: Predicting the impacts of water development on summer habitat of desert bighorn sheep Compensating for diminishing natural water: Predicting the impacts of water development on summer habitat of desert bighorn sheep
Artificial water sources have been used for decades to enhance and restore wildlife habitat but the benefits of their use have been subject to debate. During the past century, the number of natural springs in Joshua Tree National Park, California, USA, has declined. In response to concerns about the viability of the bighorn sheep (Ovis canadensis nelsoni) population, a number of water...
Authors
K.M. Longshore, C. Lowrey, D.B. Thompson
Quantifying landscape ruggedness for animal habitat analysis: A case study using bighorn sheep in the Mojave Desert Quantifying landscape ruggedness for animal habitat analysis: A case study using bighorn sheep in the Mojave Desert
Terrain ruggedness is often an important variable in wildlife habitat models. Most methods used to quantify ruggedness are indices derived from measures of slope and, as a result, are strongly correlated with slope. Using a Geographic Information System, we developed a vector ruggedness measure (VRM) of terrain based on a geomorphological method for measuring vector dispersion that is...
Authors
J.M. Sappington, K.M. Longshore, D.B. Thompson
Desert tortoise (Gopherus agassizii) survival at two eastern Mojave Desert sites: Death by short-term drought? Desert tortoise (Gopherus agassizii) survival at two eastern Mojave Desert sites: Death by short-term drought?
Survival of adult Desert Tortoises (Gopherus agassizii) appears related to site-specific variation in precipitation and productivity of annual plants. We studied adult tortoise survival rates at two closely situated, but physiographically different, sites in the eastern Mojave Desert over a nine-year period (spring 1992 to spring 2001). Survival rates were initially derived from...
Authors
Kathleen M. Longshore, Jef R. Jaeger, J. Mark Sappington
Home ranges of desert bighorn sheep inhabiting the Black Moutains, Death Valley National Park, California Home ranges of desert bighorn sheep inhabiting the Black Moutains, Death Valley National Park, California
No abstract available.
Authors
K.M. Longshore, C. L. Douglas
Costs and effectiveness of methods used for population estimates of bighorn sheep in Death Valley National Park Costs and effectiveness of methods used for population estimates of bighorn sheep in Death Valley National Park
No abstract available.
Authors
C. L. Douglas, K.M. Longshore
An evaluation of the effects of recreational activities on bighorn in the San Gabriel Mountains, California An evaluation of the effects of recreational activities on bighorn in the San Gabriel Mountains, California
No abstract available at this time
Authors
K.M. Hamilton, S. Holl, C. L. Douglas
Science and Products
Filter Total Items: 33
Fifty years after Welles and Welles: Distribution and genetic structure of Desert Bighorn Sheep in Death Valley National Park Fifty years after Welles and Welles: Distribution and genetic structure of Desert Bighorn Sheep in Death Valley National Park
The status of desert bighorn sheep (Ovis canadensis nelsoni) populations in the mountains around Death Valley was first evaluated in 1938, shortly after designation of Death Valley National Monument. However, the most comprehensive evaluation of bighorn sheep in the region was conducted by Ralph and Florence Welles during 1955-1961. They documented patterns of use at water sources and...
Authors
Clinton W. Epps, John D. Wehausen, William B. Sloan, Stacy Holt, Tyler G. Creech, Rachel S. Crowhurst, Jef R. Jaeger, Kathleen M. Longshore, Ryan J. Monello
Estimates of density, detection probability, and factors influencing detection of burrowing owls in the Mojave Desert Estimates of density, detection probability, and factors influencing detection of burrowing owls in the Mojave Desert
We estimated relative abundance and density of Western Burrowing Owls (Athene cunicularia hypugaea) at two sites in the Mojave Desert (200304). We made modifications to previously established Burrowing Owl survey techniques for use in desert shrublands and evaluated several factors that might influence the detection of owls. We tested the effectiveness of the call-broadcast technique for...
Authors
D.E. Crowe, K.M. Longshore
Nocturnal movements of desert bighorn sheep in the Muddy Mountains, Nevada Nocturnal movements of desert bighorn sheep in the Muddy Mountains, Nevada
Adequate management of a species requires complete knowledge of its ecology, including both nocturnal and diurnal behavior. Knowledge of the movement behavior of bighorn sheep can provide insight for understanding spatial population processes as the combined result of individual behavior, physiological constraints, and fine-scale environmental influences. However, because of past...
Authors
Kathleen M. Longshore, Chris E. Lowrey, Matthew Jeffress, Daniel B. Thompson
Compensating for diminishing natural water: Predicting the impacts of water development on summer habitat of desert bighorn sheep Compensating for diminishing natural water: Predicting the impacts of water development on summer habitat of desert bighorn sheep
Artificial water sources have been used for decades to enhance and restore wildlife habitat but the benefits of their use have been subject to debate. During the past century, the number of natural springs in Joshua Tree National Park, California, USA, has declined. In response to concerns about the viability of the bighorn sheep (Ovis canadensis nelsoni) population, a number of water...
Authors
K.M. Longshore, C. Lowrey, D.B. Thompson
Quantifying landscape ruggedness for animal habitat analysis: A case study using bighorn sheep in the Mojave Desert Quantifying landscape ruggedness for animal habitat analysis: A case study using bighorn sheep in the Mojave Desert
Terrain ruggedness is often an important variable in wildlife habitat models. Most methods used to quantify ruggedness are indices derived from measures of slope and, as a result, are strongly correlated with slope. Using a Geographic Information System, we developed a vector ruggedness measure (VRM) of terrain based on a geomorphological method for measuring vector dispersion that is...
Authors
J.M. Sappington, K.M. Longshore, D.B. Thompson
Desert tortoise (Gopherus agassizii) survival at two eastern Mojave Desert sites: Death by short-term drought? Desert tortoise (Gopherus agassizii) survival at two eastern Mojave Desert sites: Death by short-term drought?
Survival of adult Desert Tortoises (Gopherus agassizii) appears related to site-specific variation in precipitation and productivity of annual plants. We studied adult tortoise survival rates at two closely situated, but physiographically different, sites in the eastern Mojave Desert over a nine-year period (spring 1992 to spring 2001). Survival rates were initially derived from...
Authors
Kathleen M. Longshore, Jef R. Jaeger, J. Mark Sappington
Home ranges of desert bighorn sheep inhabiting the Black Moutains, Death Valley National Park, California Home ranges of desert bighorn sheep inhabiting the Black Moutains, Death Valley National Park, California
No abstract available.
Authors
K.M. Longshore, C. L. Douglas
Costs and effectiveness of methods used for population estimates of bighorn sheep in Death Valley National Park Costs and effectiveness of methods used for population estimates of bighorn sheep in Death Valley National Park
No abstract available.
Authors
C. L. Douglas, K.M. Longshore
An evaluation of the effects of recreational activities on bighorn in the San Gabriel Mountains, California An evaluation of the effects of recreational activities on bighorn in the San Gabriel Mountains, California
No abstract available at this time
Authors
K.M. Hamilton, S. Holl, C. L. Douglas