1st CALL FOR ABSTRACTS
2026 NWSGC Biennial Symposium
Spring 2026

Northern Wild Sheep and Goat Council 7 – 1990

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Proceedings of the 7th Biennal Symposium
Clarkston, Washington


Table of Contents

Resolution: Recommendations of the Northern Wild Sheep and Goat Council regarding privatization/ownership of wild sheep and goats in North America

Populations and Management

Population status and transplanting history of California bighorn sheep in Oregon
James C. Lemos and Mitchell J. Willis

Status and distribution of California bighorn sheep in Idaho
Walter L. Bodie, Elroy Taylor, Matthew McCoy and Dale E. Toweill

Population dynamics of two transplanted bighorn sheep herds in southcentral Wyoming
John G. Cook, Edward B. Arenett, Larry L. Irwin and Fred G. Lindzey

Dall sheep movements near Fort Greely, Alaska: preliminary findings
James K. Spiers and Wayne E. Heimer

Alternate rutting strategies in mountain sheep: management implications
Wayne E. Heimer

The effects of progressively more restrictive regulations on ram harvests in the eastern Alaska Range
Wayne E. Heimer and Sarah M. Watson

Industrial development on prime bighorn sheep range in south-west Alberta
Luigi E. Morgantini and Douglas A. Mead

Bighorn Diseases

Problems with Amultiple land use; dealing with bighorn sheep and domestic livestock
Terry R. Spraker and William J. Adrian

Effect of chronic stress on immune system function of Rocky Mountain bighorn sheep
E. Lee Belden, Elizabeth S. Williams, E. Tom Thorne, Henry J. Harlow, Karen White and Sandra L. Anderson

Pneumonia in bighorn sheep: Effects of Pasteurella haemolytica from domestic sheep and effects on survival and long-term reproduction
William J. Foreyt

Serotypes of Pasteurella haemolytica in free-ranging Rocky Mountain bighorn sheep
Mike R. Dunbar, A. C. S. Ward, Kendal G. Eyre and Marie Bulgin

Pasteurellaceae from bighorn and domestic sheep
Alton C. S. Ward, Mike R. Dunbar, David L. Hunter, Robert H. Hillman, Marie S. Bulgin, Walter J. DeLong and Eduardo R. Silva

Safety and efficacy of fenbendazole against Protostrongylus spp. infections in Rocky Mountain bighorn sheep (Ovis canadensis canadensis) William J. Foreyt, Thomas Parker and Vic Coggins

Recent advances in the diagnosis and treatment of psoroptic scabies in bighorn sheep
Walter M. Boyce, Richard K. Clark and David A. Jessup

Ivermectin for treatment of psoroptic scabies in Rocky Mountain bighorn sheep
A. L. Muschenheim, D. R. Kwiatkowski and E. T. Thorne

Psoroptic scabies in bighorn sheep in Washington and Oregon
William J. Foreyt, Vic Coggins and Pat Fowler

Management and Research Techniques

A technique for implanting heart-rate transmitters in bighorn sheep
Kevin P. Coates, Jane C. Undem, Brian C. Weitz, James T. Peters and Sanford D. Schemnitz

Tracking bighorns with satellites: system performance and error mitigation
Kim A. Keating and Carl H. Key

Comparison of helicopter-supported chemical immobilization and skid-mounted net capture of Dall sheep in Alaska
Wayne E. Heimer and Francis J. Mauer

Design of aerial surveys for Dall sheep in the Arctic National Wildlife Refuge, Alaska
Lyman L. McDonald, Henry B. Harvey, Francis J. Mauer and Alan W. Brackney

Habitat Relations

Use of clearcuts by Rocky Mountain bighorn sheep in southcentral Wyoming
Edward B. Arnett, Larry L. Irwin, Frederick G. Lindzey and Terry J. Hershey

Use of rodent middens as mineral licks by bighorn sheep
Kevin P. Coates, Sanford D. Schemnitz and James T. Peters

Habitat evaluation procedure for Rocky Mountain bighorn sheep in the western Rocky Mountains and Great Basin Regions
Tom S. Smith, Jerran T. Flinders and David S. Winn

Workshop on Harvest Regulations for Wild Sheep

Foreword
Wayne E. Heimer

Dall sheep harvest regulations in Alaska – 1990|
Wayne E. Heimer

Bighorn sheep harvest regulations in Alberta – 1990
William D. Wishart

Legal bighorn sheep definitions
Lloyd E. Oldenburg

California bighorn sheep harvest regulations in North Dakota, 1975-1990
James V. McKenzie

Dall sheep harvest regulations in Northwest Territories, 1990
Ray Case

Bighorn sheep harvest regulations in Oregon: management considerations
Walt Van Dyke

Mountain sheep harvest regulations in Utah – 1990
Tom S. Smith and Jerran T. Flinders

Thinhorn sheep harvest regulations in the Yukon, 1990
Norman Barichello and Jean Carey

Mountain Goats

Wyoming Beartooth mountain goat study
Jonathan D. Hanna

Mirror-image stimulation — What can we ascertain about mountain goat social structure?
Dale F. Reed

Perspectives on management of isolated mountain goat populations with high nonconsumptive values: the Pend Oreille Lake, Idaho, case study Kirk S. Naylor, James M. Peek and Peter Zager

Guidelines of the Northern Wild Sheep and Goat Council