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 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 Birch Creek written by Earl Herbert Swanson (Jr.) and published by . This book was released on 1972 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cottonwood Resource Management Plan written by and published by . This book was released on 2008 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Behavior and Ecology of Reintroduced Rocky Mountain Bighorn Sheep written by Jericho Condie Whiting and published by . This book was released on 2008 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book USDA Forest Service written by and published by . This book was released on 1994 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Birch Creek written by Earl Herbert Swanson (Jr.) and published by . This book was released on 1972 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology of the Rock Creek Bighorn Sheep Herd Beartooth Mountains Montana written by Steve Alan Martin and published by . This book was released on 1985 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology of an Introduced Herd of Rocky Mountain Bighorn Sheep in South Central Wyoming written by Wendy L. Haas and published by . This book was released on 1980 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Salmon Challis National Forest N F Travel Planning and OHV Route Designation written by and published by . This book was released on 2009 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 The Analysis of a Late Holocene Bison Skull from Fawn Creek Lemhi County Idaho and Its Implications for Understanding the History and Ecology of Bison in the Intermountain West written by Kenneth P. Cannon and published by . This book was released on 1997 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Life History and Ecology of the Bighorn Sheep in Idaho written by Dwight R. Smith and published by . This book was released on 1951 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ecology of Rocky Mountain Bighorn Sheep in the Sun River Area of Montana with Special Reference to Summer Food Habits and Range Movements written by Glenn Lee Erickson and published by . This book was released on 1972 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Population Dynamics and Range Ecology of Bighorn Sheep in Rocky Mountain National Parks written by John G. Stelfox and published by . This book was released on 1967 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
