Author: M. E. TiltonPublisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
Winter Habitat Selection by Mountain Sheep
Author: M. E. TiltonHabitat Selection and Use by Bighorn Sheep (Ovis Canadensis) on a Northwestern Montana Winter Range
Author: Mark Edward TiltonPublisher:
ISBN:
Category : Bighorn sheep
Languages : en
Pages : 242
Book Description
Seasonal Habitat Selection and Impacts of Backcountry Recreation on a Formerly Migratory Bighorn Sheep Population in Northwest Wyoming, USA
Author: Alyson B. CourtemanchPublisher:
ISBN: 9781321062953
Category : Bighorn sheep
Languages : en
Pages : 105
Book Description
The persistence of many migratory ungulate populations worldwide is threatened due to anthropogenic impacts to seasonal ranges and migration routes. Very little is known about the ability of migratory ungulates to adapt to migration disruption or loss. We proposed the Alternative Foraging Strategies Hypothesis (AFSH) as a framework for identifying various seasonal behavioral strategies that ungulates may use to cope with migration loss. We tested the AFSH using the formerly migratory Teton bighorn sheep population in northwest Wyoming, which ceased migrating over 60 years ago, but has persisted as resident. We used global positioning system (GPS) data to evaluate winter and summer habitat selection and seasonal elevational movements for 28 adult female bighorn sheep (Ovis canadensis) from 2008-2010. Resource selection functions revealed that Teton bighorn sheep have altered their winter foraging strategies to survive as residents by seeking out rugged, high elevation, windswept ridgelines. Seasonal movement analyses indicated that bighorn sheep undergo a newly documented "abbreviated migration" strategy that is closely synchronized with vegetation green-up patterns within their one range. We also investigated the long-term behavioral responses of bighorn sheep to backcountry skiing and snowboarding, which pose an additional challenge to surviving in their new high elevation habitats. We found that bighorn sheep avoided areas of backcountry recreation, even if those areas were otherwise relatively high quality habitat. Avoidance behavior resulted in up to a 30% reduction in available high quality habitat for some individuals. Bighorn sheep avoided areas with both low and high recreation use. Individual bighorn sheep exposed to high levels of recreation exhibited increased daily movement rates and home range sizes compared to sheep exposed to low or no recreation. These results reveal that bighorn sheep appear to be sensitive to forms of recreation which people largely perceive as having minimal impact to wildlife, such as backcountry skiing. The identification of alternative foraging strategies, the habitats that support them and the additional challenges to ungulates after migration loss, such as human recreation, can help reveal the underlying benefits of migration and help conserve ungulate populations after migration loss.
Habitat Selection by Mountain Sheep in the Sonoran Desert
Author: Nancy G. AndrewPublisher:
ISBN:
Category : Bighorn sheep
Languages : en
Pages : 40
Book Description
Bighorn Sheep Winter Habitat Use
Author: Brian HolbrookPublisher:
ISBN:
Category : Bighorn sheep
Languages : en
Pages : 14
Book Description
Habitat Selection and Resource Division Among Bighorn Sheep, Elk and Mule Deer in Western Alberta
Author: Luigi E. MorgantiniPublisher:
ISBN:
Category : Big game animals
Languages : en
Pages : 374
Book Description
Mountain Sheep of North America
Author: Raul ValdezPublisher: University of Arizona Press
ISBN: 0816547122
Category : Science
Languages : en
Pages : 368
Book Description
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.
Winter Habitat Use Patterns of Bighorn Sheep in Big Creek
Author: Brian HolbrookPublisher:
ISBN:
Category : Bighorn sheep
Languages : en
Pages : 7
Book Description
Trends in Winter Habitat for Rocky Mountain Bighorn Sheep (Ovis Canadensis) in North Central New Mexico
Author: Jesse T. BerryhillPublisher:
ISBN:
Category : Rocky Mountain bighorn sheep
Languages : en
Pages : 150
Book Description
Winter Habitat Use Patterns and Populations of Bighorn Sheep in Glacier National Park
Author: Robert A. RiggsPublisher:
ISBN:
Category : Bighorn sheep
Languages : en
Pages : 174
Book Description