Prioritizing Sites for Protection and Restoration for Grizzly Bears (Ursus arctos) in Southwestern Alberta, Canada

• Published in: PloS one Vol. 10; no. 7; p. e0132501
• Main Authors: Braid, Andrew C R, Nielsen, Scott E
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 13.07.2015; Public Library of Science (PLoS)
• Subjects: Abies lasiocarpa; Access control; Alberta; Animal behavior; Animals; Conservation; Conservation areas; Conservation biology; Conservation of Natural Resources - methods; Ecosystem; Ecosystem biology; Ecosystems; Endangered Species; Environmental protection; Environmental restoration; Environmental Restoration and Remediation - methods; Food Supply; Grizzly bear; Grizzly bears; Habitats; Identification methods; Industrial productivity; Mortality; Objectives; Pinus contorta; Population; Productivity; Protection and preservation; Renewable resources; Restoration; Risk factors; Risk management; Seasons; Simulated annealing; Timber; Ursidae; Ursus arctos; Wildlife conservation; Alberta; Canada
• ISSN: 1932-6203; 1932-6203
• DOI: 10.1371/journal.pone.0132501

As the influence of human activities on natural systems continues to expand, there is a growing need to prioritize not only pristine sites for protection, but also degraded sites for restoration. We present an approach for simultaneously prioritizing sites for protection and restoration that considers landscape patterns for a threatened population of grizzly bears (Ursus arctos) in southwestern Alberta, Canada. We considered tradeoffs between bottom-up (food resource supply) and top-down (mortality risk from roads) factors affecting seasonal habitat quality for bears. Simulated annealing was used to prioritize source-like sites (high habitat productivity, low mortality risk) for protection, as well as sink-like sites (high habitat productivity, high mortality risk) for restoration. Priority source-like habitats identified key conservation areas where future developments should be limited, whereas priority sink-like habitats identified key areas for mitigating road-related mortality risk with access management. Systematic conservation planning methods can be used to complement traditional habitat-based methods for individual focal species by identifying habitats where conservation actions (both protection and restoration) have the highest potential utility.