Results 11 to 20 of about 12,273 (212)

Outcomes of Selective Removals for Control of Pneumonia in a Bighorn Sheep Metapopulation. [PDF]

Ecol Evol
We conducted a selective removal experiment to test the hypothesis that pneumonia is maintained in bighorn sheep populations by chronic carriers of the bacterium Mycoplasma ovipneumoniae. Elimination of M. ovipneumoniae in two of three treatment populations following removals led to significant increases in juvenile survival and population growth and ...
Cassirer EF, Besser TE.
europepmc   +2 more sources

Contribution of studies of sub-seismic fracture populations to paleo-hydrological reconstructions (Bighorn Basin, USA) [PDF]

, 2013
This work reports on the reconstruction of the paleo-hydrological history of the Bighorn Basin (Wyoming, USA) and illustrates the advantages and drawbacks of using sub-seismic diffuse fracture populations (i.e., micrometric to metric joints and veins ...
Beaudoin, Nicolas, Bellahsen, Nicolas, Emmanuel, Laurent, Lacombe, Olivier   +3 more
core   +3 more sources

Experimental Transmission of Bighorn Sheep Sinus Tumors to Bighorn Sheep (Ovis canadensis canadensis) and Domestic Sheep [PDF]

Veterinary Pathology, 2016
Bighorn sheep sinus tumors are a recently described disease affecting the paranasal sinuses of Rocky Mountain bighorn sheep ( Ovis canadensis canadensis). Several features of this disease suggest an infectious cause, although a specific etiologic agent has not been identified.
I. K. LeVan, A. Marolf, Karen A. Fox, S. K. Wootton, N. Rouse, Michael W. Miller, Sandra L. Quackenbush, Terry R. Spraker   +7 more
openaire   +3 more sources

REPRODUCTIVE STRATEGIES OF DESERT BIGHORN SHEEP [PDF]

Journal of Mammalogy, 2000
We examined temporal breeding patterns of bighorn sheep (Ovis canadensis) in the Peninsular Ranges of California to determine the degree of seasonality and identify potential selection for seasonal breeding in this low-latitude desert environment.
Esther S. Rubin, Walter M. Boyce, Vernon C. Bleich   +2 more
openaire   +2 more sources

Shared Bacterial and Viral Respiratory Agents in Bighorn Sheep (Ovis canadensis), Domestic Sheep (Ovis aries), and Goats (Capra hircus) in Montana [PDF]

, 2011
Transmission of infectious agents from livestock reservoirs has been hypothesized to cause respiratory disease outbreaks in bighorn sheep (Ovis canadensis), and land management policies intended to limit this transmission have proven controversial.
Anderson, Neil, Atkinson, Mark, Aune, Keith, Chapman, Phillip L., Clarke, P. Ryan, Keating, Kim A., Kimberling, Cleon, Miller, David S., Rhyan, Jack, Roeder, Brent, Roffe, Thomas J., Weiser, Glen C.   +11 more
core   +3 more sources

Elaeophorosis in Bighorn Sheep in New Mexico [PDF]

Journal of Wildlife Diseases, 1999
Two bighorn sheep (Ovis canadensis) in New Mexico (USA) were found to be naturally infected with Elaeophora schneideri. An adult ram examined in 1997 in the Fra Cristobal Mountains had 26 nematodes in the carotid and iliac arteries, and microfilariae were present in the skin, nasal mucosa, brain, and lungs.
Amy S. Fisher, Eric Rominger, Mike Ahlm, Henry Provencio, Walter M. Boyce, John Thilsted   +5 more
openaire   +3 more sources

Ecological Effects of Fear: How Spatiotemporal Heterogeneity in Predation Risk Influences Mule Deer Access to Forage in a Sky‐Island System [PDF]

, 2019
Forage availability and predation risk interact to affect habitat use of ungulates across many biomes. Within sky‐island habitats of the Mojave Desert, increased availability of diverse forage and cover may provide ungulates with unique opportunities to ...
Anderson A. E., Burnham K. P., Choate D. M., Cook J. G., Kreeger T. J., Lima S. L., Logan K. A., Logan K. A., Lowrey C., McCormack J. E., Parker K. L.   +10 more
core   +2 more sources

Bighorn Sheep Demographics Following Pneumonia Die-Off Events [PDF]

, 2021
Bighorn sheep populations across the Intermountain West are subject to disease pressure from the respiratory bacteria Mycoplasma ovipneumoniae. Although the effects of M.
Sinclair, Kylie
core   +1 more source

The First Translocation of Bighorn Sheep in California: A Critical Review of the Activities of William Franklin Frakes [PDF]

, 2023
In the absence of verification, historical aspects of wildlife management or conservation sometimes have become established in the literature and persisted therein for decades; in other situations, serendipitous discoveries have corrected information ...
Bleich, Vernon C., Sudmeier, Glenn W., Weaver, Richard A., Wolter, Michael W.   +3 more
core   +2 more sources

Sinus tumors of Rocky Mountain bighorn sheep: investigation of an infectious etiology [PDF]

, 2013
2013 Spring.Includes bibliographical references.Rocky Mountain bighorn sheep are an icon in Colorado. As our state animal, bighorn sheep are a well-recognized symbol of the wildlife, wildlands, and wilderness-centric people that Colorado is famous for.
Fox, Karen A.
core