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Full-Text Articles in Physical Sciences and Mathematics
An Individual-Based Model Of Canid Populations: Modelling Territoriality And Social Structure, William C. Pitt, Paul W. Box, Frederick F. Knowlton
An Individual-Based Model Of Canid Populations: Modelling Territoriality And Social Structure, William C. Pitt, Paul W. Box, Frederick F. Knowlton
USDA Wildlife Services: Staff Publications
The management of canid populations has been at the forefront of wildlife management worldwide for much of the last century. Effective management depends on the ability to integrate species biology, the environmental aspects upon which those populations depend, and the factors controlling species abundance. Further, managing canid populations requires consideration of territoriality and dominance, which may have a significant effect on population dynamics. To better understand the effect of social structure on canid populations, we developed an individual-based computer model using Swarm to mimic natural coyote population dynamics. We selected the Swarm simulation environment because it is ideally suited for …
Temporal Genetic Variation In A Coyote (Canis Latrans) Population Experiencing High Turnover, Christen Lenney William, Karen Blejwas, John J. Johnston, Michael M. Jaeger
Temporal Genetic Variation In A Coyote (Canis Latrans) Population Experiencing High Turnover, Christen Lenney William, Karen Blejwas, John J. Johnston, Michael M. Jaeger
USDA Wildlife Services: Staff Publications
Coyotes (Canis latrans) are mobile, adaptable canids found in a wide range of habitats across North America, with range extensions into previously unoccupied areas in the western and eastern United States. Although long-distance dispersal capabilities in both sexes (Harrison 1992) and relatively large proportions of transient coyotes that do not exhibit fidelity to a single territory (typically 13–34% of a population— Andelt 1985; Windberg and Knowlton 1988) suggest that coyotes exist as a panmictic population, other aspects of coyote behavior may increase the likelihood of local population structure.
Coyote-Activated Frightening Devices For Reducing Sheep Predation On Open Range, Kurt C. Vercauteren, Michael J. Lavelle, Steve Moyles
Coyote-Activated Frightening Devices For Reducing Sheep Predation On Open Range, Kurt C. Vercauteren, Michael J. Lavelle, Steve Moyles
USDA Wildlife Services: Staff Publications
Domestic sheep ranching is an important agricultural industry in the United States and coyote (Canis latrans) depredation on lambs and ewes continues to challenge ranchers and agencies responsible for protecting sheep. Lethal methods used in controlling coyote depredation include aerial gunning, toxicants, trapping, and calling and shooting. Nonlethal methods include frightening devices, fences, livestock protection animals, and stringent husbandry practices. Ranchers and agencies responsible for controlling coyote depredation need frightening devices that are more effective than those currently available. We describe a field evaluation of 2 animal-activated frightening devices: an acoustic device and an acoustic device with a …
Coyote-Activated Frightening Devices For Reducing Sheep Predation On Open Range, Kurt C. Vercauteren, Michael J. Lavelle, Steve Moyles
Coyote-Activated Frightening Devices For Reducing Sheep Predation On Open Range, Kurt C. Vercauteren, Michael J. Lavelle, Steve Moyles
USDA Wildlife Services: Staff Publications
Domestic sheep ranching is an important agricultural industry in the United States and coyote (Canis latrans) depredation on lambs and ewes continues to challenge ranchers and agencies responsible for protecting sheep. Lethal methods used in controlling coyote depredation include aerial gunning, toxicants, trapping, and calling and shooting. Nonlethal methods include frightening devices, fences, livestock protection animals, and stringent husbandry practices. Ranchers and agencies responsible for controlling coyote depredation need frightening devices that are more effective than those currently available. We describe a field evaluation of 2 animal-activated frightening devices: an acoustic device and an acoustic device with a …