Download or read book Habitat Use Seasonal Distribution and Nutritional Status of the Rocky Mountain Bighorn Sheep in Morgan Creek East central Idaho written by Gina Lyn Ballard Karasek and published by . This book was released on 1989 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Use Seasonal Distribution and Nutritional Status of Bighorn Sheep in Morgan Creek written by Gina Lyn Ballard Karasek and published by . This book was released on 1991 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Relationships and Physiological Condition of Mountain Sheep in Morgan Creek East central Idaho written by Gina Lyn Ballard Karasek and published by . This book was released on 1991 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Bibliography to Rocky Mountain Bighorn Sheep Literature written by and published by . This book was released on 1999 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Desert Bighorn Sheep written by Norman S. Smith and published by . This book was released on 1988 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Use and Population Characteristics of Newly Reintroduced California Bighorn Sheep Ovis Canadensis Californiana in South central Idaho written by Gretchen Irene Fowles and published by . This book was released on 2002 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Translocations of bighorn sheep have had variable success due to the lack of good quality, predictive habitat models and of regular follow-up monitoring of translocated populations. This research helps to fill these voids. Radio telemetry was used to estimate the habitat use of a newly reintroduced population of California bighorn sheep (Ovis canadensis californiana) on the Jim Sage Range in Idaho. The habitat characteristics of locations used by groups of sheep were compared to those of randomly selected locations over two different geographic scales by use of GIS and logistic regression. The characteristics included vegetative composition, terrain ruggedness, distance to water sources, distance to steep slopes, slope, aspect, and elevation. Predictive habitat selection models based on winter, lambing, and summer habitat use were developed. The habitat models correctly classified 78-82% of used locations. Open grassy areas, distance to steep slopes and water, high elevation, and rugged terrain significantly contributed to the presence of sheep. The models suggested that there is an adequate amount of suitable habitat to support a viable population on the Jim Sage Range but that barriers may prevent their access to a portion of the range. Characteristics of the population, including births, deaths, movement patterns, and group composition and size were also monitored so that baseline data with which to compare future data to evaluate the status of the population would be provided. Adequate lambing and recruitment rates were observed. Twenty-two deaths occurred since the first translocation, and mountain lions were a major cause of these. Most of the mountain lion kills occurred during the first four months after the first release. Group size varied seasonally and was positively affected by population density.
Download or read book Mountain Sheep of North America written by Raul Valdez and published by University of Arizona Press. This book was released on 2021-11-09 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mountain sheep epitomize wilderness for many people because they occupy some of the most inaccessible and rugged habitats known to man, from desert crags to alpine mountains. But of all hoofed mammals in North America, wild sheep present the greatest management problems to biologists. This book is a major reference on the natural history, ecology, and management of wild sheep in North America. Written by wildlife biologists who have devoted years of study to the animals, it covers Dall's and Stone's sheep and Rocky Mountain, California, and desert bighorn and examines a variety of factors pertinent to their life histories: habitat, diet, activity, social organization, reproduction, and population dynamics. Additional chapters consider distribution and abundance, adaptive strategies, and management guidelines. Discussions on diseases of wild sheep present a wealth of information that will be of particular use to wildlife biologists, including detailed clinical descriptions of conditions that threaten sheep populations, from pasteurellosis to capture myopathy. An appendix reviews the cytogenetics and genetics of wild sheep. North American wild sheep may face extinction in many areas unless critical questions concerning their management are answered soon. Prior to the publication of this book, there was no single reference available in which one could find such a synthesis of information. Mountain Sheep of North America provides that source and points toward the preservation of these magnificent wild creatures.
Download or read book Ecology of the Morgan Creek and East Fork of the Salmon River Bighorn Sheep Herds and Management of Bighorn Sheep in Idaho written by James K. Morgan and published by . This book was released on 1971 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ecological study on the Morgan Creek and the East Fork of the Salmon River, Idaho, Bighorn Sheep herds was conducted from July 1, 1966 to February 28, 1970. The Morgan Creek population numbered about 100 animals upon termination of the study. The trend of this population was downward. The East Fork population numbered about 50 animals and the trend appeared to be stable or slightly downward. Productivity of both herds was low. Lamb mortality was high and recruitment to the breeding herd low. Low recruitment rates coupled with hunting pressure caused a decline in the ram component of both herds. The lungworm-pneumonia complex and scabies mites localized in the ears were common disease-parasite problems for bighorns on the Morgan Creek and East Fork ranges. Poor nutrition was postulated as the reason for endemic disease and parasite problems. Cougars, coyotes, bobcats and eagles were evaluated as mortality factors. Evidence did not indicate that any of these were a serious limiting factor. Accidents and poaching also were evaluated as mortality factors, but it was not possible to determine the extent to which they contributed to mortality. Food habits of bighorns and deer were studied on the Morgan Creek winter range. Bighorns were found to use 69 percent grasses, 27 percent browse and 4 percent forbs. The primary grass utilized was Agropyron spicatum 11 and a primary browse was Cercocarpus ledifollus. Considerable competition for forage existed between deer and bighorns. Competition did not occur between bighorns and elk or antelope. Domestic livestock use has converted most of the range in the vicinity of Challis to sagebrush, which is not quality bighorn habitat. Deer numbers have greatly increased because of the habitat change. Livestock now compete with bighorns for the limited amount of remaining grass and deer compete by decimating the mountain mahogany (C. ledifolius. Shortage of protein during the winter is a serious problem for bighorns. Winter range rehabilitation, consisting of sagebrush eradication and accompanied by reduction of deer and domestic livestock usage, is suggested to restore ranges for the benefit of bighorns. Transplanting of bighorns to suitable areas historically inhabited by bighorns is suggested to increase bighorn distribution in Idaho and to stabilize current statewide downward trends In bighorn numbers until winter range rehabilitation problems can be solved. Breeding occurred in November and December, and lambing in May and June. Twinning did not occur. Several trapping methods were evaluated and a total of 43 bighorns were trapped, Of these, 7 were transplanted, 7 were instrumented with radio transmitters, 23 were neck banded and 6 accidently killed. Morgan Creek bighorn sheep migrated an average of 22.4 airline miles to summer ranges. The shortest migration was 19 miles and the longest 28.5 miles. East Fork bighorns were found to migrate about 17 airline mi les to summer range. Analysis of winter range indicated a canopy coverage of 34 percent for shrubs, forbs and grasses, 42 percent bare soil and erosion pavement and 24 percent natural rock. Forage production was low at 128 to 669 pounds/acre green weight; Big sagebrush contributed 40 percent of the herbage production. Usage on all sites was moderate to excessive. Erosion was very evident, and range condition trend estimated to be downward. Only about 805 percent of the 16,676 acres of winter range within the Morgan Creek study area was quality habitat available to bighorns during most winters. Sagebrush, little used by bighorns, dominated 56 percent of the winter range. Grasses, indicative of quality bighorn habitat, dominated only 17 percent of the winter range. Idaho's statewide bighorn sheep populations have decreased approximately 50 percent since 1960. Ram components have decreased about 85 percent since 1960. Increased numbers of hunters have harvested fewer rams under the two-week open season 3/4-curl regulation and the point of diminishing returns has begun to operate. Depressing the ram component below an undetermined level may interfere with reproduction. Therefore, a limited harvest by controlled permit regulations and controlled distribution of hunters is recommended.
Download or read book Bighorn Sheep Winter Habitat Use written by Brian Holbrook and published by . This book was released on 1995 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bighorn Sheep Ecology written by Idaho. Fish and Game Department and published by . This book was released on 1974 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Use and Movements of Desert Bighorn Sheep Near the Silver Bell Mine Arizona written by Kirby D. Bristow and published by . This book was released on 1996 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Population Dynamics Food Habits Seasonal Habitat Use and Spatial Relationships of Bighorn Sheep Mule Deer and Feral Horses in the Pryor Mountains Montana Wyoming written by Robert Eugene Kissell and published by . This book was released on 1996 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rocky Mountain Bighorn Sheep of Montana written by Faye Morrison Couey and published by . This book was released on 1950 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Winter Habitat Use Patterns of Bighorn Sheep in Big Creek written by Brian Holbrook and published by . This book was released on 1994 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status and Habitat Use of California Bighorn Sheep on Hart Mountain Oregon written by Christine Anne Kornet and published by . This book was released on 1978 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: California bighorn sheep (Ovis canadensis californiana) were studied on Hart Mountain, Oregon, during the summer and fall of 1976, and the spring of 1977. The population consisted of a minimum of 196 sheep in June, 1977. The high number of lambs observed and high lamb:ewe ratios throughout both years of the study indicated that the population was expanding rapidly. Sheep occupied about 85 percent of the length of the mountain; ewe-lamb groups occupied 25 percent. Both ewes and rains occurred on two distinct ranges during all seasons, and interchange of individuals between the two ranges was minimal during the study. Most rutting activity occurred during November. Lambs were born between mid-April and late May. Fifteen habitats within the ewe-lamb range were identified and sampled for plant species composition. A habitat preference value (HPV) was calculated for each habitat on Hart Mountain, based on use by ewe groups. Bluebunch wheatgrass (Agropyron spicatum) and big sagebrush (Artemisia tridentata) were the two most widely distributed plant species in the ewe-lamb range; Idaho fescue (Festuca idahoensis) provided the greatest amount of herbaceous cover. Daily activities of ewe groups centered around four contiguous bedding grounds and three principal feeding areas. Topography, as well as vegetational composition, appeared to influence the preference of ewes for certain locations, particularly for major cliff formations and adjacent feeding\ areas. Habitat factors unique to the present ewe-lamb range are discussed as possible determinants of its location.
Download or read book The Ecology of the Birch Creek Rocky Mountain Bighorn Sheep Herd of Central Idaho written by John J. Brueggeman and published by . This book was released on 1977 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seasonal Movements and Habitat Use of the Highland Pioneer Mountains Bighorn Sheep Herd of Southwest Montana written by William Joseph Semmens and published by . This book was released on 1996 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
