Download or read book Range Ecology of the Porcupine Caribou Herd in Canada written by Don E. Russell and published by . This book was released on 1993 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report of a study (1979-1987) on the range ecology of the Porcupine Caribou Herd of Grant's caribou (Rangifer tarandus-granti)that migrates annually from summer range on the arctic coastal plain of Alaska and Yukon to winter in the forested valleys and plains of north-central Yukon and western Alaska. The study was undertaken by the Yukon Dept. of Renewable Resources and the Canadian Wildlife Service because of concern about proposed developments within the range of the caribou.
Download or read book Range Ecology of the Porcupine Caribou Herb in Canada written by Don Russell and published by . This book was released on 1991 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Aspects of the Ecology of the Porcupine Caribou Herd written by E. A. de Bock and published by . This book was released on 1973 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Porcupine Caribou Herd written by Renewable Resources Consulting Services and published by [Calgary] : Canadian Arctic Gas Study ; [s.l.] : Alaskan Arctic Gas Study Company. This book was released on 1974 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vegetation Communities Within the Range of the Porcupine Caribou Herd in Canada written by Donald Edmund Russell and published by [Delta, B.C.] : Canadian Wildlife Service. This book was released on 1992 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: The total home range of the Porcupine caribou herd is approximately 250,000 sq km within Alaska, Yukon, and the Northwest Territories. In the Yukon, it includes almost all the area north of Dawson. From 1979-86, a number of studies were conducted on range use during winter (1979-82), spring (1979-81), and summer (1984-86). A significant part of these studies was the documentation of vegetation communities. This report contains the detailed descriptions of the vegetation complexes within these seasonal ranges.
Download or read book The Summer Ecology of the Porcupine Caribou Herd in Northern Yukon written by Donald Edmund Russell and published by . This book was released on 1988 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The primary objective of this study was to define and identify critical caribou habitat in northern Yukon (ie. north of treeline) in order to better predict impact of any human activity on caribou. A comprehensive ecological approach was used to first of all define "critical" habitat. Caribou movement and behavior was related to the "need to feed" and the "need to avoid insects". 1. Historical and recent movements and distribution of the herd pointed to the importance of the Richardson Mountains and the Muskeg Basin regions of the northern Yukon during summer insect season. Radio-tracking relocations pointed to the frequent fracturing and reformation of large aggregations during the insect season and the constant movement of these groups. 2. Our assessment of the regional distribution of vegetation communities has shown that the Blow River valley and the valleys of the Richardson Mountains support lush vegetation. ...3. Our study of mosquito activity ... showed that mosquito activity peaks the second week of July and declines thereafter, .... 4. Our documentation of regional weather in 1986 revealed the regional influence of warm, moist northeasterly flows from interior Alaska and the cool southwesterly flows from the Beaufort Sea. Our study appeared to lie within the area of conflict between these two systems, resulting in dynamic weather patterns that can and are exploited by the caribou. ... 5. Our study of caribou behaviour response to insect harassment revealed the importance of defense strategies such as forming large dense groups when insects are active, and the advantage gained by individuals in the core or windward side of a group. 6. Caribou activity budgets indicated that insect harassment had the most profound effect of reducing lying and feeding at the expense of standing. ... The study provides the baseline information on the use of the region by the Porcupine caribou herd during the summer period, and combined with our knowedge of caribou/human interactions from related studies, puts us in an excellent position to help guide industrial development. ... The study provides the baseline informaion on the use of the region by the Porcupine caribou herd during the summer period, and combined with our knowledge of caribou/human interactions from related studies, puts us in an excellent position to help guide industrial development"--ASTIS [online] database.
Download or read book Vegetation Communities Within the Range of the Porcupine Caribou Herd in Canada written by Donald Edmund Russell and published by . This book was released on 1992 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report describes the vegetation communities located within the range of the Porcupine Caribou Herd in Canada. Within the winter range, 29 communities are described including 16 forest, six shrub, six graminoid and one forb community. These communities were sampled along the Dempster highway and a major vegetation shift was noted among physiographic regions along the highway"--Abstract.
Download or read book Movement Patterns of the Porcupine Caribou Herd in Relation to Oil Development written by Kenneth R. Whitten and published by . This book was released on 1993 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Study synthesizing existing knowledge on migration routes between seasonal ranges, selection of claving areas on the arctic coastal plain, selection of winter ranges, and long-term natality and mortality rates of radio-collared caribou (Rangifer tarandus) in the PCH (Porcupine caribou herd) in northern Alaska (Arctic National Wildlife Refuge), Yukon and the Northwest Territories.
Download or read book The Porcupine Caribou Herd and Its Range written by John P. Kelsall and published by . This book was released on 1980 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: 681 annotated entries with author and topic indexes.
Download or read book Summer Ecology of the Porcupine Caribou Herd written by Donald Edmund Russell and published by . This book was released on 2002 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computer Simulation Models of the Porcupine Caribou Herd written by L.L. Kremsater and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reindeer and Caribou written by Morten Tryland and published by CRC Press. This book was released on 2018-11-09 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive presentation of health and diseases in reindeer and caribou, or just Rangifer, a key Circumarctic species with broad social and ecological value. It is an essential reference for anyone interested in the biology and health of wild or semi-domesticated reindeer and caribou, and is more broadly relevant for those with interests in other species of free-ranging and captive cervids. Beginning with a general introduction to Rangifer as a species, it then focuses on Rangifer "health" as a concept and describes the determinants of health at an individual and population level. Chapters cover a range of topics from nutrition and feeding to stress, non-infectious and infectious diseases, meat hygiene, capture and restraint, diagnosis and treatment of health issues, and finally, potential impacts of climate change on health of Rangifer. Reindeer and Caribou: Health and Disease compiles extensive research and experience-based information on issues ranging from drug doses for chemical immobilization, blood chemistry values, and raising an orphaned calf. In addition, it contains hundreds of high quality colour illustrations that contribute to its value as a diagnostic resource for recognizing various parasites, pathogens and signs of disease, both in live and dead animals. Each chapter is followed by a comprehensive list of references and a list of contact information for all the contributors, identifying world experts in the different areas of health for this circumpolar and fascinating species. This book is compulsory reading and an indispensable resource for anyone dealing with health in reindeer and caribou, including veterinarians, wildlife biologists and managers, reindeer herders/game ranchers, zoological husbandry personnel, and students with wildlife health.
Download or read book Summer Range Relationships of the Porcupine Caribou Herd 1985 written by Donald Edmund Russell and published by . This book was released on 1986 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This study focuses on the summer range relations of the Porcupine caribou herd with particular attention to the behavioral responses of barren-ground caribou (Rangifer tarandus granti) as groups and individuals to blood-seeking and parasitic dipterans. Between mid-June and mid-August, caribou in the northern Yukon are periodically harassed by dipterans. The period of dipteran activity coincides with the critical time when caribou are restoring fat reserves depleted during winter, growing new hair and antlers, and lactating cows are producing milk for calves. Caribou experience physical irritation and blood loss to mosquitoes which emerge in late June and are active until early August. When mosquitoes are bothersome, caribou show signs of irritation by shaking their head, back, rump, or stomping their feet (Thompson, 1977). Adult warble flies (Hypoderma tarandu and nasal bot flies (Cephenamya trompe), collectively know as oestrids, do not inflict pain but their presence cause caribou to exhibit a number of "annoyance responses" (Espmark, 1967). The larvae of oestrids are obligate parasites of R. tarandus and have direct and indirect effects on their hosts. a. Direct costs: mosquitoes - loss of blood; Oestrids - increased load of endoparasites feeding on lymph, possible allergic response, suppression of immune response (Dietrich, 1981). b. Indirect costs: The indirect effect of avoiding dipterans may include reduced feeding, resting or rumination time, decrease efficiency of grazing ie. feeding less selectively or feeding in less most favorable habitat. The behavioral responses to dipterans, as well as selection of habitat with few dipterans, may have evolved in response to the direct and indirect energy cost associated with encountering blood-seeking and parasitic dipterans"--Leaf 1.
Download or read book Anthropologica written by and published by . This book was released on 2005 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Human Ecology And Climatic Change written by David L. Peterson and published by Taylor & Francis. This book was released on 2020-03-06 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Far North, a land of extreme weather and intense beauty, is the only region of North America whose ecosystems have remained reasonably intact. Humans are newcomers there and nature predominates. As is widely known, recent changes in the Earth's atmosphere have the potential to create rapid climatic shifts in our life-time and well into the future. These changes, a product of southern industrial society, will have the greatest impact on ecosystems at northern latitudes, which until now have remained largely undisturbed. In this fragile balance, as terrestrial and aquatic habitats change, animal and human populations will be irrevocably altered.
Download or read book Distribution and Movements of the Porcupine Caribou Herd in Northeastern Alaska 1972 written by D. G. Roseneau and published by [Calgary] : Canadian Arctic Gas Study ; [s.l.] : Alaskan Arctic Gas Study Company. This book was released on 1974 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The first year of a comprehensive study of the distribution and movements of the Porcupine Caribou Herd in the northeastern Alaska was initiated in March and continued until November 15, 1972. The study was performed almost entirely by aerial reconnaissance."--Page ii
Download or read book Being Caribou written by and published by The Mountaineers Books. This book was released on with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
