Download or read book Causes of Bighorn Sheep Mortality and Dieoffs written by H. M. Schwantje and published by . This book was released on 1988 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cause Specific Mortality of Desert Bighorn Sheep Lambs in the Fra Cristobal Mountains New Mexico USA written by Zachary David Parsons and published by . This book was released on 2007 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Desert Bighorn Sheep Adult Female and Lamb Survival Cause specific Mortality and Parturient Female Habitat Selection in the Peloncillo Mountains New Mexico USA written by Rebekah Catherine Karsch and published by . This book was released on 2014 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: When adult female survival is high and relatively constant from year to year, juvenile survival is the primary demographic rate affecting population growth. Juvenile recruitment in desert bighorn sheep is highly variable from year to year, yet influencing factors are not well understood. The objective of this study was to estimate lamb survival rates. I captures and radiocollared 12 neonatal desert bighorn in 2012 and 14 in 2013 in the Peloncillo Mountains, New Mexico. There were 14 mortalities; 12 of which were due to predation, which was the leading proximate cause of mortality. I used the nest survival model in program MARK to estimate survival to 6 months of age. Model {S1[subscript wk,]>1[subscript wk]} performed the best in 2012, indicating that a 2-stage age interval (1 week and > 1 week) best explained survival. Survival estimate in 2012 for 1 week was 0.92 (SE = 0.08) and average weekly survival for >1 week was 0.99 (SE = 0.006). Survival in 2013 was best explained by a 3-stage age interval model {S1[subscript wk, 2-8 wks, and > 8 wks]}. Survival estimate for 1 week, and average weekly survival for 2-8 weeks and >8weeks were 0.77 (SE = 0.11), 0.89 (SE = 0.04) and 0.89 (SE = 0.016), respectively. Precipitation patterns directly affect plant growth in desert environments, thus influencing forage quality; which past studies have shown effects female condition and survival of young. Precipitation and forage conditions alone, however, do not fully explain the high annual variability in recruitment during this study. The indirect effect of long-term drought on lamb survival may be compounded by the cumulative negative effects of a multi-predator system. Past studies have shown that in multi-predator systems, ungulates may select or avoid particular resources in an attempt to minimize predation risk. Furthermore, prey switching may be especially pronounced in arid systems where drought lowers the abundance of primary prey, and pulses of resources vary dramatically with seasonal fluctuations. Thus, predation should be considered an additive source of mortality, not as a wholly separate factor from forage conditions during periods of drought.

Download or read book Wildlife Disease Ecology written by Kenneth Wilson and published by Cambridge University Press. This book was released on 2019-11-14 with total page 693 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces readers to key case studies that illustrate how theory and data can be integrated to understand wildlife disease ecology.

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 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 Investigation and Management of Disease in Wild Animals written by G.A. Wobeser and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: - A hypothesis is a proposition, set forth as an explanation for the occurrence of a phenomenon, that can be tested. - The basis for scientific investigation is the collection of information to formulate and test hypotheses. - Experimental methods measure the effect of manipulations caused by the investigator; observational methods collect information about naturally occurring events. - There are three sub-types of experimental techniques that differ in the way subjects are chosen for inclusion in the study, in the amount of control that the investigator has over variables, and in the method used to assess changes in other variables. - Descriptive observational studies dominate the early phase of most investigations and involve the description of disease-related events in the population. Associations among factors may be observed but the strength of the associations is not measured. - Analytical observation al techniques are of three basic types: prevalence surveys, case:control studies, and incidence or cohort studies. All attempt to explain the nature of relationships among various factors and to measure the strength of associations. - Prevalence surveys and case:control studies deal with disease existing at the time of the study; incidence studies are concerned with the development of disease over time. - Observational studies may be retrospective, using existing data, or prospective with collection of new information.

Download or read book History and Distribution of Bighorn Sheep in Colorado written by George D. Bear and published by . This book was released on 1973 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Microcosm Within written by William B. Miller, Jr. and published by Universal-Publishers. This book was released on 2013-12-04 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: You are not what you think you are. New research is transforming how we understand ourselves—from a singular 'self' to a vast cooperative, co-dependent and collaborative network of cellular environments and ecologies—a microcosm within. From this unique perspective, a startling revision of evolutionary theory unfurls. Sharply reasoned and certain to be controversial, The Microcosm Within takes its readers on a sweeping scientific journey that reorganizes our thinking about our biological selves, evolution, and extinction. Darwin has dominated evolution for over a century. But many issues remain puzzling—What is the origin of self-sacrifice? Does natural selection really account for evolution? Why is homosexuality commonplace in the animal kingdom? Why were the arms of Tyrannosaurus Rex so small? Why do some species go extinct yet others endure? The Microcosm Within offers intriguing and profound answers by exploring our extraordinary world of cellular consciousness, connections, and collaboration. Current research has unexpectedly revealed that all cells and microbes have elemental cognition and a previously unappreciated capacity for discrimination and awareness. From these faculties, cooperative natural genetic engineering is enabled; and it is from this starting point that biological complexity evolves. The Microcosm Within illuminates how immunological factors dominate evolution and extinction. Biology and evolutionary theory will never be the same.

Download or read book Wildlife Management and Conservation written by Paul R. Krausman and published by JHU Press. This book was released on 2022-09-20 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The book contains the essential information that wildlife biologists and managers use to manage wildlife populations today, and it gives students the information they need to pursue a profession in wildlife management and conservation"--

Download or read book Proximate and Ultimate Causes of Rocky Mountain Bighorn Lamb Mortality in Custer State Park South Dakota written by Elise J. Goldstein and published by . This book was released on 2001 with total page 224 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 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 Bihang till samtlige riks st ndens protocoll vid lagtima riksdagen i Stockholm ren 1828 och 1829 written by and published by . This book was released on 1828 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hoofed Mammals of British Columbia written by David M. Shackleton and published by UBC Press. This book was released on 1999 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hoofed mammals (ungulates) are the most abundant large mammals in the world. They are also plentiful in British Columbia, which is home to nine wild native species: moose, elk, caribou, bison, mountain goat, two species of deer and two of sheep. There are also several introduced species. In Hoofed Mammals of British Columbia, David Shackleton presents a comprehensive summary of the most up-to-date information on these ungulates. In the well-illustrated introduction, he discusses their evolution and biology, survival adaptations, and social organization. He also covers conservation issues, tracking, and taxonomy. In the species accounts, he describes each species and subspecies and discusses their natural history: habitat, diet, behaviour, reproduction, life expectancy, and mortality factors, and predators. Each account includes a distribution map and data on taxonomy, recent population estimates, conservation status, and traditional aboriginal use. Excellent illustrations and two keys help identify each species by its external features or its skull. Hoofed Mammals of British Columbia is the third of six handbooks on the mammals of British Columbia, a Royal B.C. Museum project to update and expand the classic treatment by Ian McTaggart-Cowan and Charles Guiguet, The Mammals of British Columbia, last revised in 1965.

Download or read book Rocky Mountain Bighorn Sheep written by Dale E. Toweill and published by . This book was released on 2007-01-01 with total page 63 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: