Download or read book Resource Partitioning and Dietary Overlap of Mule Deer and Elk in Eastern Nevada written by Moira Kolada and published by . This book was released on 2011 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: In semi-arid environments, such as the Great Basin, low productivity and frequent drought conditions increase the complexity of understanding the potential for competition, habitat selection, and dietary separation between native ungulates and cattle. I studied resource partitioning and spatial patterns of habitat use by female mule deer (Odocoileus hemionus) and female elk (Cervus elaphus) in eastern Nevada during winter, spring, and summer. I also examined dietary composition and overlap of mule deer, elk, and cattle. To assess resource partitioning and spatial distributions I used ecological niche factor analysis (ENFA) to analyze the areas used by radio-collared mule deer and elk and create habitat suitability maps for both species. I found that both species were using habitats close to dirt roads and that areas with high pinyon-juniper cover were avoided during all seasons. Nonetheless, there was selection for low-density pinyon-juniper areas and areas in proximity to pinyon-juniper. Mule deer selected for specific elevational ranges (2300m to 2500m) and areas close to springs during the summer. Elk selected for higher elevations during spring and summer. Slope and proximity to springs were also important during summer. I found that habitat use was more restricted during summer than for the other seasons for both species, but especially mule deer. My results suggest that in these semi-arid watersheds, mule deer and elk may be more restricted by availability of water and high quality forage during summer. To assess dietary composition and overlap between mule deer, elk, and cattle, diet utilization was quantified from microhistological analysis of rumen and fecal samples. I observed that there was not substantial dietary overlap among elk and mule deer from October to December, but that dietary overlap was greatest in summer. Elk and mule deer showed greater dietary overlap than elk and cattle. I observed a slight dietary separation among male and female elk, with female elk diets having a greater graminoid component than male elk. Elk and cattle exhibited greater dietary separation in my study area that included a crested wheatgrass seeding, suggesting either that elk avoided areas of high cattle concentration (i.e. crested wheatgrass seedings), or that cattle preferred the seeded grasses and utilized less of other forage species favored by elk.
Download or read book Resource Partitioning and Browse Use by Sympatric Elk Mule Deer and White tailed Deer Populations on a Winter Range in Western Montana written by Gary Ross Baty and published by . This book was released on 1995 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abstracts of Papers Presented at the Annual Meeting written by Society for Range Management. Meeting and published by . This book was released on 1989 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wild and Free roaming Horses and Burros written by National Research Council (U.S.). Committee on Wild and Free-Roaming Horses and Burros and published by . This book was released on 1980 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wild and Free roaming Horses and Burros written by and published by National Academies. This book was released on 1980 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mule and Black tailed Deer of North America written by Olof C. Wallmo and published by . This book was released on 1981 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developed in co-operation with U.S. Department of Agriculture, Forest Service.
Download or read book The American Midland Naturalist written by and published by . This book was released on 1986 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Using Science to Improve the BLM Wild Horse and Burro Program written by National Research Council and published by National Academies Press. This book was released on 2013-10-04 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward reviews the science that underpins the Bureau of Land Management's oversight of free-ranging horses and burros on federal public lands in the western United States, concluding that constructive changes could be implemented. The Wild Horse and Burro Program has not used scientifically rigorous methods to estimate the population sizes of horses and burros, to model the effects of management actions on the animals, or to assess the availability and use of forage on rangelands. Evidence suggests that horse populations are growing by 15 to 20 percent each year, a level that is unsustainable for maintaining healthy horse populations as well as healthy ecosystems. Promising fertility-control methods are available to help limit this population growth, however. In addition, science-based methods exist for improving population estimates, predicting the effects of management practices in order to maintain genetically diverse, healthy populations, and estimating the productivity of rangelands. Greater transparency in how science-based methods are used to inform management decisions may help increase public confidence in the Wild Horse and Burro Program.
Download or read book Rangeland Wildlife written by Paul R. Krausman and published by . This book was released on 1996 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Scientific Basis for Conserving Forest Carnivores written by Leonard F. Ruggiero and published by . This book was released on 1994 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: This cooperative effort by USDA Forest Service Research and the National Forest System assesses the state of knowledge related to the conservation status of four forest carnivores in the western United States: American marten, fisher, lynx, and wolverine. The conservation assessment reviews the biology and ecology of these species. It also discusses management considerations stemming from what is known and identifies information needed. Overall, we found huge knowledge gaps that make it difficult to evaluate the species' conservation status.
Download or read book Przewalski s Horse written by Lee Boyd and published by SUNY Press. This book was released on 1994-01-01 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Przewalski's horse, the only true horse never to have been domesticated, is believed to be extinct in the wild. Experts from around the world come together in this book and offer a complete synthesis of knowledge about the species to date. Topics included are taxonomy, morphology, former geographic distribution, history in captivity, the studbook, genetics, population biology, nutrition, veterinary care, reproduction, and behavior. Implications for management are also included and are especially relevant in light of recent plans to attempt the reintroduction of Przewalski's horses into the wild. This book provides a valuable reference to those charged with managing this endangered species in captivity and implementing its reintroduction.
Download or read book Conservation by Proxy written by Tim Caro and published by Island Press. This book was released on 2010-06-23 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: The vast scope of conservation problems has forced biologists and managers to rely on "surrogate" species to serve as shortcuts to guide their decision making. These species-known by a host of different terms, including indicator, umbrella, and flagship species-act as proxies to represent larger conservation issues, such as the location of biodiversity hotspots or general ecosystem health. Synthesizing an immense body of literature, conservation biologist and field researcher Tim Caro offers systematic definitions of surrogate species concepts, explores biological theories that underlie them, considers how surrogate species are chosen, critically examines evidence for and against their utility, and makes recommendations for their continued use. The book clarifies terminology and contrasts how different terms are used in the real world considers the ecological, taxonomic, and political underpinnings of these shortcuts identifies criteria that make for good surrogate species outlines the circumstances where the application of the surrogate species concept shows promise Conservation by Proxy is a benchmark reference that provides clear definitions and common understanding of the evidence and theory behind surrogate species. It is the first book to review and bring together literature on more than fifteen types of surrogate species, enabling us to assess their role in conservation and offering guidelines on how they can be used most effectively.
Download or read book Desert Puma written by Kenneth A. Logan and published by Island Press. This book was released on 2001-08-01 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientists and conservationists are beginning to understand the importance of top carnivores to the health and integrity of fully functioning ecosystems. As burgeoning human populations continue to impinge on natural landscapes, the need for understanding carnivore populations and how we affect them is becoming increasingly acute.Desert Puma represents one of the most detailed assessments ever produced of the biology and ecology of a top carnivore. The husband-and-wife team of Kenneth Logan and Linda Sweanor set forth extensive data gathered from their ten-year field study of pumas in the Chihuahua Desert of New Mexico, also drawing on other reliable scientific data gathered throughout the puma's geographic range. Chapters examine: the evolutionary and modern history of pumas, their taxonomy, and physical description a detailed description and history of the study area in the Chihuahua Desert field techniques that were used in the research puma population dynamics and life history strategies the implications of puma behavior and social organization the relationships of pumas and their preyThe authors provide important new information about both the biology of pumas and their evolutionary ecology -- not only what pumas do, but why they do it. Logan and Sweanor explain how an understanding of puma evolutionary ecology can, and must, inform long-term conservation strategies. They end the book with their ideas regarding strategies for puma management and conservation, along with a consideration of the future of pumas and humans. Desert Puma makes a significant and original contribution to the science not only of pumas in desert ecosystems but of the role of top predators in all environments. It is an essential contribution to the bookshelf of any wildlife biologist or conservationist involved in large-scale land management or wildlife management.
Download or read book Dogs written by Raymond Coppinger and published by University of Chicago Press. This book was released on 2002-10 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering a scientifically informed perspective on canines and their relations with humans, two biologists take a close look at eight different types of dogs--household, village, livestock guarding, herding, sled pulling, pointing, retrieving and hound. 34 halftones.
Download or read book Wild Free roaming Horses written by Mark Zarn and published by . This book was released on 1977 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 The Historical Archaeology of Virginia from Initial Settlement to the Present written by Clarence R. Geier and published by Createspace Independent Publishing Platform. This book was released on 2017-02-10 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book includes six chapters that cover Virginia history from initial settlement through the 20th century plus one that deals with the important role of underwater archaeology. Written by prominent archaeologists with research experience in their respective topic areas, the chapters consider important issues of Virginia history and consider how the discipline of historic archaeology has addressed them and needs to address them . Changes in research strategy over time are discussed , and recommendations are made concerning the need to recognize the diverse and often differing roles and impacts that characterized the different regions of Virginia over the course of its historic past. Significant issues in Virginia history needing greater study are identified.
