Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 7 of 7
Full-Text Articles in Physical Sciences and Mathematics
Impact Of Preventive Aerial Coyote Hunting On Sheep Losses To Coyote Predation, Kimberly K. Wagner, Michael R. Conover
Impact Of Preventive Aerial Coyote Hunting On Sheep Losses To Coyote Predation, Kimberly K. Wagner, Michael R. Conover
Great Plains Wildlife Damage Control Workshop Proceedings
Coyote (Canis latrans) predation is a serious problem for livestock producers in the Western U.S. In Utah, Idaho, and Wyoming, 34% of all producer-reported sheep and lamb losses were to coyote predation, amounting to $4.8 million in losses during 1995. Although preventive aerial hunting is commonly used by agriculture agencies in the Intermountain West to reduce coyote (Canis latrans) predation on sheep (Ovis aries), only limited data are available on the efficacy of the technique. We assessed the impact of winter (January - March) aerial coyote hunting on sheep losses to coyotes and the …
Relative Effectiveness Of Various Breeds Of Livestock Guarding Dogs For Reducing Predation On Domestic Sheep In Colorado, William F. Andelt, Stuart N. Hopper
Relative Effectiveness Of Various Breeds Of Livestock Guarding Dogs For Reducing Predation On Domestic Sheep In Colorado, William F. Andelt, Stuart N. Hopper
Great Plains Wildlife Damage Control Workshop Proceedings
We surveyed 59 livestock producers that used multiple breeds of livestock guarding dogs to determine their ratings of the relative effectiveness of guarding dogs for deterring predation on domestic sheep in Colorado during 1995. Significantly (P < 0.05) more producers rated Akbash dogs as more effective than Great Pyrenees for deterring predation by coyotes (Canis latrans), black bears (Ursus americanus), mountain lions (Felis concolor), domestic dogs, and all predators combined. Significantly more producers also rated Akbash dogs as more effective than Komondors for deterring predation by coyotes and all predators combined. Great Pyrenees and Komondors were rated as similar in effectiveness for deterring predation. Significantly more producers rated Akbash dogs as more aggressive, …
The Coyote As An Ecological Model, Thomas A. Eddy, Cindy M. Moore
The Coyote As An Ecological Model, Thomas A. Eddy, Cindy M. Moore
Great Plains Wildlife Damage Control Workshop Proceedings
Teachers (K-12) in a prairie ecology workshop in Kansas used the coyote as the focus for the design of an educational strategy to integrate many concepts and principles of ecology into the various subject areas of the curriculum. A topical outline was developed as a guide for implementing the study.
Sheep Predation By Coyotes: A Behavioral Analysis, Ray T. Sterner
Sheep Predation By Coyotes: A Behavioral Analysis, Ray T. Sterner
Great Plains Wildlife Damage Control Workshop Proceedings
This paper presents (1) a brief overview of several concepts important to predator-prey behaviors of coyotes, (2) results of an enclosure study of sheep-attack, -immobilization, and -ingestion responses involving 12 male coyotes (Canis latrans) that were paired with sheep after observing various sheep- predation events by conspecifics, and (3) an analysis of sheep predation based upon operant learning principles. Contrasts between comparative psychological and ethological approaches to the study of animal behavior are described. Results of the enclosure study (0.127-ha) showed that following matched-length trials of observing predation, non-predation, and lone sheep, 3, 2, and 1 coyote(s), respectively, …
Protecting Juvenile Salmonids From Gull Predation Using Wire Exclusion Below Hydroelectric Dams, John E. Steuber, Mikel E. Pitzler, J. Gary Oldenburg
Protecting Juvenile Salmonids From Gull Predation Using Wire Exclusion Below Hydroelectric Dams, John E. Steuber, Mikel E. Pitzler, J. Gary Oldenburg
Great Plains Wildlife Damage Control Workshop Proceedings
Predation by ring-billed gulls (Larus delawarenis) has been identified as a significant threat to migrant steelhead and salmon (Oncorhynchus spp.) smolt in the Columbia and Snake Rivers. Bird predation appears highest immediately below hydroelectric facilities. Installation of overhead wire/cable exclusion systems over the tailrace area of 12 dams has been completed to reduce gull predation. Data collected from 1 of the facilities as well as observations from other dams indicate that overhead wire/cable exclusion systems are effective in reducing predation by gulls.
Predation Of Big Game And Livestock In The Texas Trans-Pecos, S. Kemble Canon
Predation Of Big Game And Livestock In The Texas Trans-Pecos, S. Kemble Canon
Great Plains Wildlife Damage Control Workshop Proceedings
Predation of livestock and big game remains a matter of concern for ranch managers and operators in the Trans-Pecos. Current evidence indicates that mountain lions (Felis concolor), bobcats (Lynx rufus), and coyotes (Canis latrans) are the primary predators involved, although little information is available on bobcats. A gradual shift from sheep to cattle management has resulted in a corresponding decrease in the intensity of predator control efforts for livestock protection. However, potential lease hunting income has renewed predator control efforts for protection of the 3 primary big game species, pronghorn antelope (Antilocapra americana), …
Research Priorities In Wildlife Damage Management, James E. Miller
Research Priorities In Wildlife Damage Management, James E. Miller
Great Plains Wildlife Damage Control Workshop Proceedings
Based on a survey of 97 wildlife damage management professionals (60% response rate of 161 mailed questionnaires), field, research, and administrative personnel felt that the top 3 current wildlife damage management (WDM) research needs were: development of more effective and efficient techniques of damage assessment, effectiveness of education and conflict resolution programs on WDM issues, and repellent/aversive techniques. Respondents indicated that human dimensions research related to effectiveness of public education and conflict resolution would be the highest future research need. Large and small mammals were identified as key species groups needing research with preventive methods and aversive agents as practices …