Results 161 to 170 of about 2,273 (203)
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Phenotypic and genetic variation in Rocky Mountain bighorn sheep (Ovis canadensis canadensis)
2023Genetic variation is a ubiquitous feature of natural populations and underpins much phenotypic variation. Genetic variance can be partitioned and examined at various hierarchical levels of organization to address fundamental questions in ecology and evolution.
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1993
Ovis canadensis Shaw, 1804. Nat. Mise., 51, text to pl. 610. TYPE LOCALITY: Canada, Alberta, Mountains on Bow River, near Exshaw. DISTRIBUTION: S British Columbia and SW Alberta (Canada) to Coahuila, Chihuahua, Sonora and Baja California (Mexico). STATUS: CITES - Appendix II for Mexican population. SYNONYMS: auduboni, californiana, cervina, cremnobates,
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Ovis canadensis Shaw, 1804. Nat. Mise., 51, text to pl. 610. TYPE LOCALITY: Canada, Alberta, Mountains on Bow River, near Exshaw. DISTRIBUTION: S British Columbia and SW Alberta (Canada) to Coahuila, Chihuahua, Sonora and Baja California (Mexico). STATUS: CITES - Appendix II for Mexican population. SYNONYMS: auduboni, californiana, cervina, cremnobates,
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1892
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Journal of Wildlife Diseases, 1989
Alveolar macrophages were obtained from Rocky Mountain bighorn sheep (Ovis canadensis canadensis) and domestic sheep for the purpose of comparing pulmonary host defense mechanisms in the two species. Specific variables studied included (1) characterization of the cell types present in the lung, (2) alveolar macrophage phagocytic and bactericidal ...
R M, Silflow +5 more
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Alveolar macrophages were obtained from Rocky Mountain bighorn sheep (Ovis canadensis canadensis) and domestic sheep for the purpose of comparing pulmonary host defense mechanisms in the two species. Specific variables studied included (1) characterization of the cell types present in the lung, (2) alveolar macrophage phagocytic and bactericidal ...
R M, Silflow +5 more
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Play frequencies in captive and free‐ranging bighorn lambs (Ovis canadensis canadensis)
Zoo Biology, 1987AbstractBehavioral observations on captive animals are frequently extrapolated to provide species‐typical descriptions of a given behavior. Comparative studies of free‐ranging and captive animals are critical to substantiate this practice. We compared play frequencies in two populations of bighorn sheep (Ovis canadensis canadensis).
Beth Bennett, Jennifer H. Fewell
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Comparative Immunology, Microbiology and Infectious Diseases, 2006
Bighorn sheep are more susceptible to respiratory infection by Mannheimia haemolytica than are domestic sheep. In response to bacterial challenge, macrophages produce a number of molecules that play key roles in the inflammatory response, including highly reactive nitrogen intermediates such as nitric oxide (NO).
R E, Sacco +3 more
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Bighorn sheep are more susceptible to respiratory infection by Mannheimia haemolytica than are domestic sheep. In response to bacterial challenge, macrophages produce a number of molecules that play key roles in the inflammatory response, including highly reactive nitrogen intermediates such as nitric oxide (NO).
R E, Sacco +3 more
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Journal of Wildlife Diseases, 1988
Five Rocky Mountain bighorn sheep (Ovis canadensis canadensis), approximately 5 mo old and without detectable antibody titers to respiratory syncytial virus (RSV), were assigned to two groups to study the effects of RSV challenge inoculation in vaccinated (n = 3) and unvaccinated (n = 2) bighorns.
W J, Foreyt, J F, Evermann
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Five Rocky Mountain bighorn sheep (Ovis canadensis canadensis), approximately 5 mo old and without detectable antibody titers to respiratory syncytial virus (RSV), were assigned to two groups to study the effects of RSV challenge inoculation in vaccinated (n = 3) and unvaccinated (n = 2) bighorns.
W J, Foreyt, J F, Evermann
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Dates for Ovis canadensis, Ovis cervina and Ovis montana
1914(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Journal of Wildlife Diseases, 1991
We observed clinical signs, compared adrenal responses, and performed diagnostic tests on 12 captive Rocky Mountain bighorn sheep (Ovis canadensis canadensis) during a spontaneous outbreak of pasteurellosis. Cortisol in urine and feces was measured for bighorns sampled three times between 20 October and 1 November 1986. By 6 November, four of these had
M W, Miller, N T, Hobbs, E S, Williams
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We observed clinical signs, compared adrenal responses, and performed diagnostic tests on 12 captive Rocky Mountain bighorn sheep (Ovis canadensis canadensis) during a spontaneous outbreak of pasteurellosis. Cortisol in urine and feces was measured for bighorns sampled three times between 20 October and 1 November 1986. By 6 November, four of these had
M W, Miller, N T, Hobbs, E S, Williams
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Veterinary Microbiology, 2009
Mannheimia haemolytica causes pneumonia in both bighorn sheep (BHS, Ovis canadensis) and domestic sheep (DS, Ovis aries). Under experimental conditions, co-pasturing of BHS and DS results in fatal pneumonia in BHS. It is conceivable that certain serotypes of M. haemolytica carried by DS are non-pathogenic to them, but lethal for BHS. M.
Rohana P, Dassanayake +8 more
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Mannheimia haemolytica causes pneumonia in both bighorn sheep (BHS, Ovis canadensis) and domestic sheep (DS, Ovis aries). Under experimental conditions, co-pasturing of BHS and DS results in fatal pneumonia in BHS. It is conceivable that certain serotypes of M. haemolytica carried by DS are non-pathogenic to them, but lethal for BHS. M.
Rohana P, Dassanayake +8 more
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