scholarly journals Habitat Utilization, Interspefic Interactions and Status of a Recolonized Population of Bighorn Sheep at a Wild Horse Range

1987 ◽  
Vol 11 ◽  
pp. 11-16
Author(s):  
Sanford Schemnitz ◽  
Kevin Coates
Keyword(s):  
Habitat Use ◽  
Foraging Behavior ◽  
Food Habits ◽  
Activity Patterns ◽  
Rocky Mountain ◽  
Bighorn Sheep ◽  
Management Program ◽  
Ovis Canadensis ◽  
Wild Horse ◽  
Recreation Area

Data have been collected from 05-86 to 11-87 to aid in the development of a management program for Rocky Mountain bighorn sheep (Ovis canadensis canadensis) at Bighorn Canyon National Recreation Area (BICA). The purpose of this report is to summarize progress toward completing the following Objectives: 1. Determine the size, and age/sex composition of the sheep herd at BICA; determine the general health of the herd. 2. Analyze the seasonal food habits of sheep and wild horses; analyze the dietary overlap of these species; analyze the foraging behavior of sheep in habitats occupied exclusively by sheep and compare with the foraging behavior of sheep in habitats used in common with horses and/or humans. 3. Analyze seasonal habitat use throughout the annual cycle; analyze activity patterns during all daylight hours and relate to habitat use; identify and describe sensitive use areas for consideration in future sheep management programs. 4. Determine the total habitat potential of BICA.

scholarly journals Cardiac Telemetry, Natality, and Food Habits of Bighorn Sheep at Bighorn Canyon National Recreation Area

1989 ◽  
Vol 13 ◽  
pp. 9-14
Author(s):  
Kevin Coates ◽  
Sanford Schemnitz
Keyword(s):  
Food Habits ◽  
Rocky Mountain ◽  
Bighorn Sheep ◽  
Management Program ◽  
Ovis Canadensis ◽  
Genetic Constraints ◽  
Recreation Area ◽  
Reintroduced Population ◽  
Limited Supply ◽  
Founder Group

Data were collected from May 1988 to May 1989 to aid in the development of a management program for Rocky Mountain bighorn sheep (Ovis canadensis canadensis) at Bighorn Canyon National Recreation Area (BICA). A principle goal of the management program at BICA is to promote the continued expansion of a reintroduced population of bighorn sheep throughout its ancestral habitat (BICA 1984). In previous research at BICA (Coates and Schemnitz 1988) we identified 3 factors as potentially limiting to herd expansion: visitor and/or vehicular disturbance of bighorns (especially reproductive ewes), competition with horses for a limited supply of grasses, and possible genetic constraints on recruitment (i.e., inbreeding depression) resulting from small founder group size.

scholarly journals Cardiac Telemetry, Natality and Genetics of a Recolonized Population of Bighorn Sheep at a Wild Horse Range

1988 ◽  
Vol 12 ◽  
pp. 17-23
Author(s):  
Kevin Coates ◽  
Sanford Schemnitz
Keyword(s):  
Group Size ◽  
Rocky Mountain ◽  
Bighorn Sheep ◽  
Management Program ◽  
Genetic Constraints ◽  
Wild Horse ◽  
Recreation Area ◽  
Founder Group

Data were collected from 05-88 to 12-88 in continued research to aid in the development of a management program for Rocky Mountain bighorn Sheep (Ovid c. canadensis) at Bighorn Canyon National Recreation Area (BICA). A principle goal of the management program at BICA is to promote the continued expansion of a recolonized population throughout ancestral habitat in the area (BICA 1984). In previous research at BICA (Coates and Schemnitz, 1988), we identified 3 factors as potentially limiting to herd expansion: visitor and (or) vehicular disturbance of bighorns (esp. reproductive ewes), competition with horses for grasses, and possible genetic constraints on recruitment resulting from small founder-group size.

scholarly journals Brucellosis in Captive Rocky Mountain Bighorn Sheep (Ovis canadensis) Caused by Brucella abortus Biovar 4

2004 ◽  
Vol 40 (2) ◽  
pp. 311-315 ◽  
Author(s):  
Terry J. Kreeger ◽  
Walter E. Cook ◽  
William H. Edwards ◽  
Todd Cornish
Keyword(s):  
Brucella Abortus ◽  
Rocky Mountain ◽  
Bighorn Sheep ◽  
Ovis Canadensis

Food habits, habitat use, activity patterns, and dispersal

2010 ◽  
pp. 34-42
Author(s):  
Timothy J. Coonan ◽  
Catherin A. Schwemm ◽  
David K. Garcelon
Keyword(s):  
Habitat Use ◽  
Food Habits ◽  
Activity Patterns

Cardiac frequency: a potential predictor of blood cortisol levels during acute and chronic stress exposure in Rocky Mountain bighorn sheep (Ovis canadensis canadensis)

1987 ◽  
Vol 65 (8) ◽  
pp. 2028-2034 ◽  
Author(s):  
Henry J. Harlow ◽  
E. Tom Thorne ◽  
Elizabeth S. Williams ◽  
E. Lee Belden ◽  
William A. Gern
Keyword(s):  
Chronic Stress ◽  
Remote Monitoring ◽  
Acute Stress ◽  
Rocky Mountain ◽  
Bighorn Sheep ◽  
Ovis Canadensis ◽  
Domestic Sheep ◽  
Cardiac Frequency ◽  
Acute And Chronic Stress ◽  
In Captivity

It was the purpose of this study to investigate methods of assessing responses to stress by free-ranging bighorn sheep (Ovis canadensis canadensis). The adrenal response test on wild-caught bighorn sheep maintained in captivity did not demonstrate either adrenal exhaustion or hypersensitivity during chronic stress. To study physiological responses to acute stress, hand-reared bighorn sheep were habituated to living in stalls and fitted with electrocardiogram leads and jugular cannulas for remote monitoring of cardiac frequency and blood cortisol changes. A radioimmunoassay was validated on bighorn sheep plasma which was a modification of the procedure used for domestic sheep. A linear relationship between heart rate and blood cortisol was obtained for individual animals suggesting that remote monitoring of cardiac frequency can be used as a predictor of adrenal function and, therefore, the potential immunologic condition of an animal during stress.

ROCKY MOUNTAIN BIGHORN SHEEP (OVIS CANADENSIS CANADENSIS) MILK: I. GROSS COMPOSITION AND FAT CONSTITUTION

1965 ◽  
Vol 43 (5) ◽  
pp. 885-888 ◽  
Author(s):  
E. C. H. Chen ◽  
D. A. Blood ◽  
B. E. Baker
Keyword(s):  
Fatty Acids ◽  
Milk Fat ◽  
Post Partum ◽  
Rocky Mountain ◽  
Bighorn Sheep ◽  
Ovis Canadensis ◽  
Domestic Sheep ◽  
Milk Samples ◽  
Sheep Milk ◽  
Park Area

Milk was obtained from five Rocky Mountain bighorn sheep living in the Jasper Park area of Alberta. The milk was collected at [Formula: see text] and 3 months post partum. The gross composition and milk fat fatty acids of the milk samples and of a sample of domestic sheep milk (Suffolk, 1 month post partum) were determined.

scholarly journals An Analysis of Composition, Distribution, and Habitat Use of Reintroduced Desert Bighorn Sheep in Arches National Park, Utah

1989 ◽  
Vol 13 ◽  
pp. 5-6
Author(s):  
C. Haas ◽  
Gar Workman
Keyword(s):  
Habitat Use ◽  
National Park ◽  
Social Dynamics ◽  
National Park Service ◽  
Bighorn Sheep ◽  
Ovis Canadensis ◽  
Desert Bighorn Sheep ◽  
Use Patterns ◽  
Habitat Analysis ◽  
Park Service

The ecology of a reintroduced population of desert bighorn sheep (Ovis canadensis nelsoni} is being investigated in Arches National Park. National Park Service objectives are: (1) determine general ecological parameters, including population and social dynamics, seasonal distribution and habitat use patterns, and general health characteristics; and (2) develop a comprehensive program of habitat analysis and evaluation that can be used to determine habitat suitability and identify transplant sites in other National Park Service units.

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