Demography of a harvested population of wolves (Canis lupus) in west-central Alberta, Canada

Autor:	Evelyn H. Merrill, J. R. Allen, N. F. Webb
Rok vydání:	2011
Předmět:	Litter (animal) education.field_of_study Animal breeding biology Population biology.organism_classification Monitoring program Population density Caniformia Canis Biological dispersal Animal Science and Zoology education Ecology Evolution Behavior and Systematics Demography
Zdroj:	Canadian Journal of Zoology. 89:744-752
ISSN:	1480-3283 0008-4301
DOI:	10.1139/z11-043
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::569b295dab8601a53202ee1adc85b55e https://doi.org/10.1139/z11-043 Zobrazit plný text záznamu Plný text ve formátu PDF