Prescribed crown fire effects on bighorn sheep habitat in Alberta [abstract]
Document Type: Conference Paper
Author(s): P. M. Woodard; S. J. Michalsky
Publication Year: 1994

Cataloging Information

  • Alberta
  • Canada
  • catastrophic fires
  • cover
  • crown fires
  • forbs
  • grasses
  • old growth forests
  • Ovis canadensis
  • Picea
  • Picea glauca
  • post fire recovery
  • range management
  • rangelands
  • wildlife
Record Maintained By:
Record Last Modified: July 26, 2018
FRAMES Record Number: 35456
Tall Timbers Record Number: 9755
TTRS Location Status: In-file
TTRS Call Number: Journals-W
TTRS Abstract Status: Fair use, Okay, Reproduced by permission

This bibliographic record was either created or modified by the Tall Timbers Research Station and Land Conservancy and is provided without charge to promote research and education in Fire Ecology. The E.V. Komarek Fire Ecology Database is the intellectual property of the Tall Timbers Research Station and Land Conservancy.


A stand replacing crown fire was set in 1983 for the purpose of increasing the quality and quantity of a bighorn sheep range on Ram Mountain, Alberta. The area burned was a 250-year-old white spruce (Picea glauca [Moench] Voss) stand in close proximity to escape terrain and bighorn winter range. When postburn feild data, which were obtained during the 1983 through 1986 and 1992 field seasons, are compared to the preburn data, results show that most plant species survived the effects of the fire or were able to re-colonize after it. Sorensen's Index of Similarity went from 51%, one month after the fire, to over 70% by 1992. Tree and shrub cover has not returned to preburn levels, while grass has doubled and forb cover has increased over 400%. Sheep use has significantly increased.

Online Link(s):
Woodard, P. M., and S. J. Michalsky. 1994. Prescribed crown fire effects on bighorn sheep habitat in Alberta [abstract], First Annual Conference of The Wildlife Society. Albuquerque, New Mexico. The Wildlife Society, p. 106,