1st CALL FOR ABSTRACTS
2026 NWSGC Biennial Symposium
Spring 2026

Northern Wild Sheep and Goat Council 3 – 1982

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Proceedings of the 3rd Biennal Symposium
Fort Collins, Colorado


Table of Contents

Section I – Papers of General Interest

Dall Sheep management in Alaska Following Congressional Settlement of the Alaska Lands Issue
Wayne E. Heimer

Ecological Relationships of Mountain Goats and Rocky Mountain Bighorn Sheep
Layne G. Adams, Kenneth L. Risenhoover, and James A. Bailey

On A Population Control; with Reference to Mountain Sheep and Goats(Abstract)

Section II – Population Genetics

Potential Genetic Effects of Small Population Size in Wildlife
David Pettus

Small Populations: Observed Genetic Effects
Donald J. Nash

Inbreeding in Bighorn Sheep: A Case Study
Gary T. Skiba and John L. Schmidt

Group Size and Movements of a Dispersed, Low Density Goat Population, with Comments on Inbreeding and Human Impacts
Christian a. Smith and Kenneth J. Raedeke

Horn Growth as an Index to Levels of Inbreeding in Bighorn Sheep
Shawn T. Stewart and Thomas W. Butts

Section III – Trapping and Transplanting

Electronic Release System for Drop Nets
John M. Emmerich, Marvin Hockley and Edward S. Kimber

Cutoff Bighorn Transplant: The First Two Years
Leonard L. Kopec

Trapping and Transplanting Mountain Goats in Washington State
Rolf Johnson and Bruce Moorhead

Capture and Radio Telemetry of Mountain Goats in Alaska
Lyman Nichols, Jr

Section IV – Skull and Horn Morphometry

An Evaluation of Horn and Skull Characters as a Measure of Population Quality in Alberta Bighorns
William D. Wishart and Diane Brochu

Horn Growth and Horn Wear in Dall Rams and their Relevance to Management
Manfred Hoefs and Tony Nette

A Simple Measuring Device for Sheep Horns
P. Merchant, M. Hoefs, T. Nette, W. Kale and M. Hanssen

Section V – Disease and Physiology

An Overview of the Clinical Signs, Gross and Histological Lesions of the Pneumonia Complex of Bighorn Sheep
T. R. Spraker and C. P. Hibler

Survey of Colorado and Wyoming Bighorn Sheep and Mountain Goats for Paratuberculosis
Elizabeth S. Williams and Charles P. Hibler

Disease Surveys in Dall Sheep in Alaska
Wayne E. Heimer, Randall L. Zarnke and Diane J. Preston

An Outbreak of Pinkeye in Bighorn Sheep Yellowstone National Park: A Preliminary Report
Mary Meagher

Mountain Goat Sodium Dynamics in the Eagles Nest Wilderness, Colorado
Richard W. Thompson

Evaluation of the Baermann Technic for Recovery of Lungworm (Nematoda, Protostrongylidae) Larvae from Wild Ruminants
W. M. Samuel and J. B. Gray

Section VI – Mountain Sheep

Bighorn Sheep Management in Rocky Mountain National Park
David R. Stevens

Application of Optimal Foraging Theory for Bighorn Sheep Habitat Evaluation
Els B. Cooperrider and Richard M. Hansen

Forage Selection by Bighorn Sheep Ewes and Lambs in South-central Colorado
Els B. Cooperrider and Richard M. Hansen

Forage Preference Indices: Adjusting Forage Availability Data for Habitat Selection
Eric M. Rominger and James A. Bailey

Effects of Domestic Sheep Grazing on Bighorn Sheep Populations: A Review
Nike J. Goodson

Heart Rate Responses of Bighorn Sheep To Some Environmental Factors(Abstract)
Raymond Stemp

Responses of Dall Sheep Populations to Wolf Control in Interior Alaska
Wayne E. Heimer and Robert O. Stephenson

Differing Reproductive Patterns in Dall Sheep: Population Strategy or Management Artifact?
Wayne E. Heimer and Sarah M. Watson

Section VII – Mountain Goats

Mountain Goat Inventory and Harvest Strategies: A Reevaluation
D. M. Hebert and H. D. Langin

Implications of Maternal Separation on Overwinter Survival of Mountain Goat Kids
Bryan R. Foster and Engle Y. Rahs

Social Dynamics of Mountain Goats in Summer: Implications for Age Ratios
Kenneth L. Risenhoover and James A. Bailey

Winter Studies of Forest-Dwelling Mountain Goats of Pinto Creek, Alberta
Kirby G. Smith

Movements and Home Range of Mountain Goats, Sheep Mountain-Gladstone Ridge, Colorado
Layne G. Adams, Mark A. Masteller and James A. Bailey

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