Low wolverine (Gulo gulo) density in a national park complex of the Canadian Rocky Mountains

Wolverine densities in the Canadian Rocky Mountain Parks—Banff, Yoho, and Kootenay—are significantly lower than expected for high-quality habitat, with mean densities of 3.3 and 3.0 wolverines per 1000 km² in 2011 and 2013, respectively. The study also found that density decreases toward park boundaries, suggesting edge effects may negatively impact populations. Using systematic non-invasive genetic sampling across over 7000 km², researchers employed spatial capture–recapture models to estimate densities, revealing critical insights for conservation efforts. To support the population, the authors recommend establishing buffer zones that protect female habitat and prohibit harvest.

Barrueto, M., Sawaya, M. A., & Clevenger, A. P. (2020). Low wolverine (Gulo gulo) density in a national park complex of the Canadian Rocky Mountains. Canadian Journal of Zoology, 98(5), 287–298. https://doi.org/10.1139/cjz-2019-0165