Download or read book Effects of Feeding on the Winter Elk Population of the National Elk Refuge at Jackson Wyoming written by Dixie R. Smith and published by . This book was released on 1957 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Our National Elk Herds written by Henry Solon Graves and published by . This book was released on 1919 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Department of the Interior National Park Service Control of Elk Population Yellowstone National Park written by United States. Congress. Senate. Committee on Appropriations and published by . This book was released on 1967 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Winter Recreation on Wildlife of the Greater Yellowstone Area written by Tom Olliff and published by . This book was released on 1999 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Elk Refuge written by and published by . This book was released on 2005 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influences of Supplemental Feeding on Winter Elk Calf cow Ratios in the Southern Greater Yellowstone Ecosystem written by Aaron M. Foley and published by . This book was released on 2015 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several elk herds in the Greater Yellowstone Ecosystem are fed during winter to alleviate interactions with livestock, reduce damage to stored crops, and to manage for high elk numbers. The effects of supplemental feeding on ungulate population dynamics has rarely been examined, despite the fact that supplemental feeding is partially justified as necessary for maintaining or enhancing population growth rates. We used linear regression to assess how the presence of feedgrounds, snowpack, summer rainfall, indices of grizzly bear density and wolves per elk, elk population trend counts, brucellosis seroprevalence, and survey date were correlated with midwinter calf:cow ratios, a metric correlated with population growth, from 1983?2010 from 12 ecologically similar elk herd units (7 fed and 5 unfed) in Wyoming, USA. Our statistical approach allowed for rigorous tests of the hypotheses that supplemental feeding had positive effects on calf:cow ratios and reduced sensitivity of calf:cow ratios to bottom-up limitation relative to top-down limitation from native predators. Calf:cow ratios generally declined across all herd units over the study period and varied widely among units with feedgrounds. We found no evidence that the presence of feedgrounds had positive effects on midwinter calf:cow ratios in Wyoming. Further, fed elk showed stronger correlations with environmental factors, whereas calf:cow ratios for unfed elk showed stronger correlations with predator indices. Although we found no consistent association between winter feeding and higher calf:cow ratios, we did not assess late winter mortality and differences in human offtake between fed and unfed regions, which remain a priority for future research. Published 2015. This article is a U.S. Government work and is in the public domain in the USA.

Download or read book The Elk of Jackson Hole written by Chester C. Anderson and published by . This book was released on 1958 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Conservation of the Elk of Jackson Hole Wyoming written by Commission on the conservation of the Jackson hole elk and published by . This book was released on 1927 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Biological and Economic Appraisal of the Jackson Hole Elk Herd written by John Johnson Craighead and published by . This book was released on 1952 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Winter Feeding of Elk in the Greater Yellowstone Ecosystem and Its Effects on Disease Dynamics written by Gavin G. Cotterill and published by . This book was released on 2018 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing food to wildlife during periods when natural food is limited results in aggregations that may facilitate disease transmission. This is exemplified in western Wyoming where institutional feeding over the past century has aimed to mitigate wildlife?livestock conflict and minimize winter mortality of elk (Cervus canadensis). Here we review research across 23 winter feedgrounds where the most studied disease is brucellosis, caused by the bacterium Brucella abortus. Traditional veterinary practices (vaccination, test-and-slaughter) have thus far been unable to control this disease in elk, which can spill over to cattle. Current disease-reduction efforts are being guided by ecological research on elk movement and density, reproduction, stress, co-infections and scavengers. Given the right tools, feedgrounds could provide opportunities for adaptive management of brucellosis through regular animal testing and populationlevel manipulations. Our analyses of several such manipulations highlight the value of a research?management partnership guided by hypothesis testing, despite the constraints of the sociopolitical environment. However, brucellosis is now spreading in unfed elk herds, while other diseases (e.g. chronic wasting disease) are of increasing concern at feedgrounds. Therefore experimental closures of feedgrounds, reduced feeding and lower elk populations merit consideration. This article is part of the theme issue ?Anthropogenic resource subsidies and host ?parasite dynamics in wildlife?.

Download or read book Problems of Habitat Management for Deer and Elk in the Northern Forests written by L. Jack Lyon and published by . This book was released on 1966 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Migrations and Management of the Jackson Elk Herd written by Bruce L. Smith and published by . This book was released on 1994 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Grand Teton National Park N P Bison and Elk Management Plan written by and published by . This book was released on 2005 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Jackson Elk Herd written by Mark S. Boyce and published by Cambridge University Press. This book was released on 1989 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A classic study in wildlife management.

Download or read book A Working Model to Assist in Determining Initiation of Supplemental Feeding of Elk and a Carrying Capacity Model for the National Elk Refuge Jackson Wyoming written by Joel R. Bailey and published by . This book was released on 1999 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Factors Influencing the Number of Elk Fed Annually on the National Elk Refuge at Jackson Wyoming written by Dixie R. Smith and published by . This book was released on 1957 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reducing Reliance on Supplemental Winter Feeding in Elk Cervus Canadensis written by Dax L Mangus and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Wildlife managers have fed elk in North America for nearly 100 years. Giving winter feed to elk can compensate for a shortage of natural winter range and may boost elk populations while also helping prevent commingling with livestock and depredation of winter feed intended for livestock. In contrast to these benefits of supplemental feeding, there are economic and environmental costs associated with feeding, and elk herds that winter on feeding grounds have a higher risk of contracting and transmitting disease. Brucellosis is of primary concern now, and Chronic Wasting Disease may be in the future. Many see the discontinuation of winter-feeding programs as a necessary step for decreasing the risk of disease spread due to high animal densities associated with feeding during winter. My research evaluated the use of behavioral training to reduce reliance on supplemental winter feeding of elk, while minimizing population reductions and human-wildlife conflicts. My study was conducted at Deseret Land & Livestock (DLL) in Rich County, UT, where managers at DLL have over 20 years of data on elk feeding during winters of varying intensities. I tested the effectiveness of range improvements, strategic cattle grazing, dispersed supplemental feeding, hunting, and herding to distribute and hold elk in desired areas during winter. I compared elk numbers on the feed ground during this study with historic data on DLL, and also contrasted elk responses with other comparable feed sites in Wyoming that served as controls. In 2 mild winters we completely eliminated elk feeding without incident and were able to reduce the quantity and duration of feeding during 1 severe winter. Since the conclusion of my study, DLL has further reduced quantity and duration of feeding during severe winters, and has completely eliminated feeding in light winters. Based on a Before After Control Impact (BACI) analysis, the reduction in the proportion of the elk population fed at the study site was significantly less than the proportion of the elk populations fed at the control sites in Wyoming (P = 0.057). Based on these results, I anticipate wildlife managers can decrease dependence on costly supplemental winter feeding and reduce the risks of disease while keeping human-wildlife conflicts at a minimum. This research illustrates an adaptive method that can enable wildlife managers to keep elk populations in northern Utah at or near their current size, while constraining disease outbreak and transmission risks within "acceptable" levels.