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Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
Visualizing Connectivity For Wildlife In A World Without Roads, Catherine De Rivera, Leslie Bliss-Ketchum, Martin Lafrenz, A. V. Hanson, L. E. Mckinney-Wise, A. H. Rodriguez, J. Schultz, Alana Simmons, D. Taylor Rodriguez, Multiple Additional Authors
Visualizing Connectivity For Wildlife In A World Without Roads, Catherine De Rivera, Leslie Bliss-Ketchum, Martin Lafrenz, A. V. Hanson, L. E. Mckinney-Wise, A. H. Rodriguez, J. Schultz, Alana Simmons, D. Taylor Rodriguez, Multiple Additional Authors
Environmental Science and Management Faculty Publications and Presentations
Roads are not the only determining factor for wildlife movement across the landscape, but due to the extensive distribution of the road network their impact can be dramatic. Although it has been well documented that roads decrease habitat connectivity for wildlife due to animal-vehicle collisions, habitat fragmentation, and avoidance behavior, approaches for identifying connectivity across the landscape often do not fully examine the barrier effect of roads. Here, we explored the extent of the impact of roadways on wildlife connectivity by using Omniscape to model connectivity including and without the barrier effect of roads, then evaluating the difference between these …
A Behavior-Based Framework For Assessing Barrier Effects To Wildlife From Vehicle Traffic Volume, Sandra L. Jacobson, Leslie L. Bliss-Ketchum, Catherine E. De Rivera, Winston P. Smith
A Behavior-Based Framework For Assessing Barrier Effects To Wildlife From Vehicle Traffic Volume, Sandra L. Jacobson, Leslie L. Bliss-Ketchum, Catherine E. De Rivera, Winston P. Smith
Environmental Science and Management Faculty Publications and Presentations
Roads, while central to the function of human society, create barriers to animal movement through collisions and habitat fragmentation. Barriers to animal movement affect the evolution and trajectory of populations. Investigators have attempted to use traffic volume, the number of vehicles passing a point on a road segment, to predict effects to wildlife populations approximately linearly and along taxonomic lines; however, taxonomic groupings cannot provide sound predictions because closely related species often respond differently. We assess the role of wildlife behavioral responses to traffic volume as a tool to predict barrier effects from vehicle-caused mortality and avoidance, to provide an …
Complex Interactions Between Regional Dispersal Of Native Taxa And An Invasive Species, Angela L. Strecker, Shelley E. Arnott
Complex Interactions Between Regional Dispersal Of Native Taxa And An Invasive Species, Angela L. Strecker, Shelley E. Arnott
Environmental Science and Management Faculty Publications and Presentations
In the event of an environmental disturbance, dispersal of native taxa may provide species and genetic diversity to ecosystems, increasing the likelihood that there will be species and genotypes present that are less vulnerable to the disturbance. This may allow communities to maintain functioning during a disturbance and may be particularly important when the perturbation is novel to the system, such as the establishment of an invasive species. We examined how dispersal of native species may influence crustacean zooplankton communities in freshwater lakes invaded by the invertebrate predator, Bythotrephes longimanus. Using large enclosures, we experimentally tested the effect of …
Role Of Private Owners In The Conservation Of Exotic Species, Jessica L. Beetz
Role Of Private Owners In The Conservation Of Exotic Species, Jessica L. Beetz
Honors Theses
This study examines the private ownership of exotic species, a topic very relevant to conservation that has long been ignored in the public sphere of policy and discussion. The private ownership of exotic species is a multifaceted issue that affects not only conservation, but also the domestic industry, world trade and education. The volume of trade in live animals is remarkably high and growing, making studies that investigate the implications of this trade on the endangered and threatened species even more pressing. This thesis investigates whether or not animal species held in captivity by private owners benefit conservation of their …