期刊
CANADIAN JOURNAL OF ZOOLOGY
卷 89, 期 8, 页码 744-752出版社
CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
DOI: 10.1139/Z11-043
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资金
- Alberta Conservation Association
- Alberta Cooperative Conservation Research Unit
- Alberta Fish and Game Association
- Alberta Professional Outfitters Society
- Alberta Sustainable Resource Development
- Alberta Trappers Association
- Foundation for North American Wild Sheep - Alberta Chapter
- Foundation for North American Wild Sheep - International
- Natural Sciences and Engineering Research Council of Canada [261091-02]
- Parks Canada
- Red Deer River Naturalists
- Rocky Mountain Elk Foundation
- Safari Club International - Northern Alberta Chapter
- Yellowstone to Yukon/Wilburforce Foundation
- Sundance Forest Industries
- Sundre Forest Products
- Weyerhaeuser Company
- University of Alberta
Wolves (Canis lupus L., 1758) are subject to liberal public harvests throughout most of their range in North America, yet detailed information on populations where sport harvest is the primary source of mortality are limited. We studied a harvested wolf population in west-central Alberta from 2003 to 2008. Demographic data were collected from visits to den sites, 84 collared wolves from 19 packs, and a harvest monitoring program that augmented mandatory reporting for registered traplines. Annual harvest rate of wolves was 0.34, with harvest on registered traplines (0.22 +/- 0.03) being twice that of hunters (0.12 +/- 0.04). Most wolves harvested (71%) were pre-reproductive. Probability of a pack breeding was 0.83 +/- 0.01, litter size averaged 5.6 +/- 1.4, and these rates and stability of home ranges were unaffected by the number of wolves harvested. Natural mortality (0.04 +/- 0.03) and dispersal rates (0.25 +/- 0.04) were lower than reported for wolf populations in protected areas. Reproductive rates balanced total wolf mortality, indicating harvest was likely sustainable. We suggest that a high proportion of juveniles harvested and the spatial structure of the registered trapline system contributed to the sustainability of harvests.
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