Download or read book California Bighorn Sheep Ovis canadensis californiana habitat management written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book California Bighorn Sheep Ovis Canadensis Californiana Habitat Management written by Lanny O. Wilson and published by . This book was released on 1978* with total page 252 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 Recovery Plan for Bighorn Sheep in the Peninsular Ranges California written by Esther Rubin and published by . This book was released on 2000 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mountain Sheep Ecosystem Management Strategy in the 11 Western States and Alaska written by and published by . This book was released on 1994 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildlife Habitats in Managed Rangelands written by Walter A. Van Dyke and published by . This book was released on 1983 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rangewide Plan for Managing Habitat of Desert Bighorn Sheep on Public Lands written by United States. Bureau of Land Management and published by . This book was released on 1989 with total page 56 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 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 American Desert Bighorn Sheep in California written by and published by . This book was released on 1990 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Status and Habitat Preference of California Bighorn Sheep on Sheldon National Wildlife Refuge Nevada written by Michael Charles Hansen and published by . This book was released on 1982 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: A herd of California bighorn sheep (Ovis canadensis californiana), re-introduced to the area of Hell Creek on the Sheldon National Wildlife Refuge in northwestern Nevada, was studied from 15 June 1978 to 20 August 1980. Major vegetation and physiographic types were delineated and described. Habitat preferences were determined from field observations of sheep use of both vegetation and physiographic habitat components. Sheep displayed preference in their use of habitat components during all seasons; greatest selection was shown by the ewe/ lamb band for physiographic types associated with escape cover in spring, and for vegetation types associated with quality forage in winter. Rams generally displayed less selective habitat use than did the ewe/lamb band. The population was relatively stable at 30-35 individuals, following the initial post-introduction period of rapid growth. It was hypothesized that high quality lambing terrain was limited in quantity within the present ewe/lamb range, and that expansion of the ewe/lamb range to include the nearby Boulder Spring and Virgin Canyon areas would promote substantial population increase. Water was available during all seasons. Spring use of mineral licks may have been related to seasonal mineral deficiency associated with tissue and/or milk production. Activity patterns suggested that sheep adapted their daily activities to fit local, seasonal situations.

Download or read book Status of California Bighorn Sheep in British Columbia written by Raymond Alexander Demarchi and published by Wildlife Branch. This book was released on 2000-01-01 with total page 53 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 California Bighorn Sheep habitat management written by Wilson and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Ecology of Desert Bighorn Sheep Ovis Canadensis in the Peninsular Ranges of California written by Esther Salzmann Rubin and published by . This book was released on 2000 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Desert Bighorn Sheep and Water written by Paul R. Krausman and published by . This book was released on 1996 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Characteristics and Habitat Utilization of Bighorn Sheep Steens Mountain Oregon written by Walter A. Van Dyke and published by . This book was released on 1978 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: A herd of re-introduced California bighorn sheep (Ovis canadensis californiana) was studied from 15 June 1976 to 31 August 1977. Thirteen major and seven minor habitats were delineated and described. Habitat use by bighorns was observed throughout the study and a habitat preference value (H.P.V.) was calculated based on use by ewe-lamb groups. Certain habitats were highly preferred for foraging or resting by bighorns during different seasons of the year, probably because of the physical and vegetative characteristics they offered. Examination of daily activity patterns of ewe-lamb groups revealed that they primarily fed in the morning, rested at mid-day, and again fed toward evening during all seasons. Comparison of the activity budgets (time allotment for the various activities) between the sex and age groups within seasons disclosed statistical differences in all seasons. In spring lambs foraged less and pursued other activities more than ewes or rams. In summer, rams foraged less than lambs and lambs foraged less than ewes. The reverse trend was noted for resting activity. These trends were probably related energy demands of each sex and age class. In fall and winter no difference was found between the activity budgets of ewes and lambs. Adult rams, however, spent less time foraging and more time resting and pursuing other activities than ewes or lambs. This was related to energy demands and the rut. Estimated herd size fluctuated between 128 and 180 individuals with most of the change attributable to birth and subsequent mortality of lambs. Factors responsible for lamb mortality were not identified but losses appeared related to parasites and disease; Between 1976 and 1977 the population increased very little.