1st CALL FOR ABSTRACTS
2026 NWSGC Biennial Symposium
Spring 2026

Northern Wild Sheep and Goat Council 5 – 1986

Click on any article title to download a pdf version of the article. Selecting the Table of Contents will initiate a download of a pdf of the table of contents and selecting the conference title will initiate a download of the entire proceedings for that year.

Proceedings of the 5th Biennal Symposium
Missoula, Montana


Table of Contents

Keynote Address – Values, threats and challenges to Northern wild sheep, goats and biologists
Arnold Olsen

Mountain Sheep Harvest Strategies

Bighorn sheep harvest strategies in Wyoming
John E. Emmerich

Harvest strategies in Alberta
William D. Wishart

Bighorn sheep seasons in Montana, 1872 – 1985
John McCarthy

Harvest strategy panel: maximizing ram harvests
Wayne E. Heimer and Sarah M. Watson

Mountain Goat Harvest Strategies

Harvesting mountain goats: strategies, assumptions, and needs for management and research
James A. Bailey

Mountain goat management in British Columbia
Daryll M. Hebert and Tom Smith

Mountain goat management in Washington
Rolf Johnson

Mountain goat hunting strategies in Idaho
Lonn Kuck

Harvest Impacts

Reproductive response of the Absaroka mountain goat population to an experimental reduction
Jon E. Swenson

Time and area specific variations in Dall sheep lamb production: an explanatory hypotheses
Wayne E. Heimer and Sarah M. Watson

Bighorn ram survival and harvest in southwestern Alberta
Marco Festa-Bianchet

The effects of trophy hunting on Dall sheep rut behavior and ram survivorship in Alaska (abstract only)
Francis J. Singer, Karen K. Laing, Edward C. Murphy, and.Lyman K. Nichols

Management of bighorn sheep to optimize hunter opportunity
Lynn R. Irby, Shawn T. Stewart, and Jon E. Swenson

General Session

Dall sheep hunting in Alaska: what is it worth?
Sarah M. Watson

The myth of Alaska’s sheep hunters: rich, experienced, successful, and dedicated
Sarah M. Watson

Subsistence sheep hunting in Alaska
Wayne E. Heimer

The use of transplanting to expand bighorn sheep range
David R. Stevens and Donay D. Hanson

Circadian activity rhythms of chamois in northern Tyrol, Austria
Joseph Hamr and Hans Czaker

Trace element levels in Montana bighorn sheep horns
Harold D. Picton and Charles Eustace

Parasites and Disease

Experimental Pasturella pneumonia in bighorn sheep (abstract only)
Detlef K. Onderka

Use of Ivermectin to increase lamb survival in a herd of Rocky Mountain bighorn sheep
Larry J. Layne and Thomas R. McCabe

Long-term effect of Fenbendazole on lungworm infections in transplanted bighorn sheep
Gary Huschle and David E. Worley

A comparative study of bighorn sheep herds in southeastern British Columbia
Helen Schwantje

Development Impacts

Mountain goat population changes in relation to energy exploration along Montana’s Rocky Mountain Front
Gayle Joslin

Population characteristics and habitat use by mountain sheep prior to a pneumonia dieoff
Timothy A. Andryk and Lynn R. Irby

Impacts of seismic activity on bighorn movements and habitat use
Dan Hook

Prescribed burning as mitigation for energy development on bighorn sheep ranges in Wyoming
Kevin P. Hurley and Larry L. Irwin

Bighorn sheep, Mount Allan, and the 1988 winter Olympics: political and biological realities
Brian L. Horejsi

The increase and dieoff of Waterton Canyon bighorn sheep: biology, management and dismanagement
James A. Bailey

Population Dynamics

Longevity of American mountain goats
Bruce L. Smith

Reproductive success of Sheep River ewes: a preliminary report (abstract only)
Marco Festa-Bianchet

Preliminary observations on population responses to an expanding bighorn sheep herd in Alberta
Jon T. Jorgenson and William D. Wishart

Habitat and Nutrition

Bi-level analysis of habitat selection by mountain goats in coastal Alaska
Christian A. Smith

Food habits and habitat use of Putoran snow sheep, (Ovis nivicola borealis)
A. D. Fedosenko

Animal condition – a comparison of fecal nitrogen and diaminopimelic acid
Daryll M. Hebert

Winter food habits and sexual monomorphism in Japanese serow
Kazuo Suzuki and Seiki Takatsuki

Habitat improvement for Taylor River bighorn sheep herd
William C. Shuster

Summer habitat use by bighorn ewes and lambs
Gary C. Brundige and Thomas R. McCabe

Alpine habitat selection in sympatric mountain goats and mountain sheep
Dale F. Reed

A solar radiation model for ibex relocation programs
P. G. Meneguz, L. Rossi, D. DeMeneghi, P. Lanfranchi, V. Peracino and T. Balbo