1st CALL FOR ABSTRACTS
2026 NWSGC Biennial Symposium
Spring 2026

Northern Wild Sheep and Goat Council 8 – 1992

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 8th Biennal Symposium
Cody, Wyoming


Table of Contents

Populations and Management

Effective population sizes for bighorn sheep
Nancy N. FitzSimmons and Steven W. Buskirk

Why is Montana the land of giant rams?
Duncan Gilchrist

Bighorn sheep movements and summer lamb mortality in central Idaho
James J. and Holly A. Akenson

Trophy hunting of Dall sheep in Alaska; an evaluation of the biological implication
Francis J. Singer and Lyman Nichols

Managing bighorn habitat from a landscape perspective
James A. Bailey

Management implications of an intensive study of winter foraging ecology of bighorn sheep
Nike J. Goodson and David R. Stevens

Status of mountain sheep in Morgan Creek, east-central Idaho
Gina L. Karasek, Michael D. Scott and James M. Peek

Population dynamics, seasonal distribution and movement patterns of the Laramie Peak bighorn sheep herd
Daniel A. Hengel, Stanley H. Anderson and William G. Hepworth

Decline and habitat abandonment by bighorn sheep on Battlement Mesa, Colorado, 1906-1990
Mary L. Cunningham and James A. Bailey

Critique of carrying capacity concepts concerning Dall Sheep
Wayne E. Heimer

Determining the future of bighorn herds in wilderness areas
James A. Bailey and Melanie M. Woolever

Bighorn Diseases

Effect of pneumonia on population size and lamb recruitment in Whiskey Mountain bighorn sheep
Thomas J. Ryder, Elizabeth S. Williams, Kenneth W. Mills, K. H. Bowles and E. Tom Thorne

Lamb survival and herd status of the Lostine bighorn herd following a Pasteurella die-off
Victor L. Coggins

Failure of an experimental Pasteurella haemolytica vaccine to prevent respiratory disease and death in bighorn sheep after exposure to domestic sheep
William J. Foreyt

Naturally occurring pneumonia in caesarian-derived Rocky Mountain bighorn sheep lambs Alton C. S. Ward, David L. Hunter, Martha D. Jaworski, V. Michael Lane, Jerry L. Zaugg, and Marie S. Bulgin

Theoretical concepts of disease versus nutrition as primary factors in population regulation of wild sheep
Mike R. Dunbar

Pharyngeal microflora of Dall and domestic sheep in Alaska: management implications Wayne E. Heimer, Randall L. Zarnke and Francis J. Mauer

Gastrointestinal parasites of bighorn sheep in western Montana and their relationship to herd health
David E. Worley and Floyd M. Seesee

Experimental contact association between bighorn sheep, elk and deer with known Pasteurella haemolytica infections
William J. Foreyt

Management and Research Techniques

Seasonal changes in lamb:ewe ratios
Jon T. Jorgenson

Use of age ratios to predict bighorn sheep population dynamics
Marco Festa-Bianchet

Estimation of Dall sheep numbers in the Wrangell-St. Elias National Park and Preserve
Dale Strickland, Lyman L. McDonald, Dale Taylor, Kurt Jenkins, and John Kern

Preliminary tests of a mountain sheep habitat model using a geographic information system
Vernon C. Bleich, Matthew C. Nicholson, Amanda T. Lombard, and Peter V. August

Habitat Relations

Foraging behavior and vegetation responses to prescribed burning on bighorn sheep winter range
Doug McWhirter, Scott Smith, Evelyn Merrill, and Larry Irwin

The role of precipitation and temperature in the winter range diet quality of mountain sheep of the Mount Baxter herd, Sierra Nevada
John D. Wehausen

Mountain Goats

Preliminary observations of timing and causes of mountain goat kid mortality in west-central Alberta
Kirby G. Smith, Martin A. Urquhart, and Marco Festa-Bianchet

Winter habitat selection by mountain goats in the north-central Cascades
Brian A. Gilbert and Kenneth J. Raedeke

Mountain goat habitat of Wyoming’s Beartooth Plateau: implications for management
Lisa A. Haynes

Population dynamics and behavior of mountain goats using Elliott Ridge, Gore Range, Colorado
Anne Hopkins, James P. Fitzgerald, Alex Chappell, and Gene Byrne

Social dominance and its influence on the foraging efficiency of the mountain goat: a preliminary report
Francois Fournier

Poster Session Abstracts

Mitochondrial DNA variation and genetic population structure in Rocky Mountain bighorn sheep
Gordon Luikart

Modelling Dall sheep habitat in the northern YukonManon Desforges and Jean Carey

Population dynamics of bighorn sheep using reclaimed habitat in open pit coal mines in west-central AlbertaBeth MacCallum

Spinster bighorn ewe groups in the Arkansas River Canyon, Canon City, Colorado
Dale F. Reed, Michael W. Miller, and Jack Vayhinger

Guidelines of the Northern Wild Sheep and Goat Council