Translator Disclaimer
1 February 2000 GENETIC VARIABILITY OF WOLVERINES (GULO GULO) FROM THE NORTHWEST TERRITORIES, CANADA: CONSERVATION IMPLICATIONS
Author Affiliations +
Abstract

Because of anthropogenic factors in the early 1900s that caused populations to decline dramatically, wolverines (Gulo gulo) currently are designated as endangered in eastern Canada and classified as vulnerable throughout the Holarctic Region by the International Union for Conservation of Nature and Natural Resources. Although numerous examples exist that illustrate the utility of genetic data for development of conservation plans, no study has investigated the genetic structure of natural populations of wolverines. We assessed allozymic and mitochondrial DNA (mtDNA) variability of wolverines within and among 5 sites from the Northwest Territories, Canada. Five of 46 presumptive allozyme loci were polymorphic. Estimates of heterozygosity (2.6%) and polymorphism (11.6%) were lower than values reported for most mammals but were within the range reported for Carnivora. To evaluate levels of variation in mtDNA, we sequenced the left domain of the control region. Six variable nucleotide sites were observed, resulting in 9 haplotypes of mtDNA. Within-site diversity of haplotypes (h) was high, but within-site diversity of nucleotides (π) was low, indicating little sequence divergence among the 9 haplotypes. Sequence data for mtDNA revealed considerably more genetic partitioning among sites (ϕST = 0.536) than did allozyme data (FST = 0.076). Based on fixation indices, gene flow estimates (Nm) were moderate for nuclear markers but low for mtDNA loci. These findings suggest that, although wolverines maintain large home ranges, they exhibit fidelity to discrete areas, gene flow is predominantly male-mediated, and most sites in the Northwest Territories are genetically independent and thus represent populations. Therefore, any conservation plan for wolverines in the Northwest Territories must consider preservation of populations if genetic diversity of this taxon is to be maintained.

Gregory M. Wilson, Ronald A. Van Den Bussche, Phyllis K. Kennedy, Anne Gunn, and Kim Poole "GENETIC VARIABILITY OF WOLVERINES (GULO GULO) FROM THE NORTHWEST TERRITORIES, CANADA: CONSERVATION IMPLICATIONS," Journal of Mammalogy 81(1), 186-196, (1 February 2000). https://doi.org/10.1644/1545-1542(2000)081<0186:GVOWGG>2.0.CO;2
Accepted: 26 April 1999; Published: 1 February 2000
JOURNAL ARTICLE
11 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top