Influence of ecotourism on grizzly bear activity depends on salmon abundance in the Atnarko River corridor, Nuxalk Territory

dc.contributor.authorField, Kate A.
dc.contributor.authorShort, Monica
dc.contributor.authorMoody, Jason
dc.contributor.authorArtelle, Kyle
dc.contributor.authorBourbonnais, Mathieu
dc.contributor.authorPaquet, Paul C.
dc.contributor.authorDarimont, Chris T.
dc.date.accessioned2024-07-02T16:46:01Z
dc.date.available2024-07-02T16:46:01Z
dc.date.issued2024
dc.description.abstractEcotourism management can draw on theory and data related to non-consumptive effects of risk on wildlife. The asset protection principle (APP) predicts that variable food supply and its associated risks will affect antipredator behavior; responses to predation risk should dominate when food reserves are high, while nutritional risk becomes more important when food reserves are limited. Additionally, the human shield hypothesis (HSH) describes how some individuals might seek human presence if it repels potential sources of risk. Using camera traps, we used generalized linear mixed effects and multinomial regression models to test components of the APP and HSH where ecotourism co-occurs with grizzly bear (Ursus arctos) foraging during hyperphagia. When salmon abundance was high (+1 SD), bear activity (weekly detections) decreased by 13% with every 100 visitors/week. Under low salmon conditions, bear activity increased with visitor numbers, creating ‘high bear-high visitor’ conditions. Consistent with HSH, detection data revealed an increased likelihood of detecting subordinate age-sex classes compared with adult males when visitor numbers were high. Our findings suggest that when salmon are low, managers might consider limiting visitors to mitigate disturbance. More broadly, understanding how wildlife allocate antipredator behavior as a function of risk and food can inform conservation science and practice.
dc.description.reviewstatusReviewed
dc.description.scholarlevelFaculty
dc.description.sponsorshipThis project received funding from The Natural Sciences and Engineering Research Council of Canada (CGS-D to KAF and Discovery Grant to CTD), Raincoast Conservation Foundation, BC Parks License Plate Program, SkyeMikko Foundation, Wilburforce Foundation, with in-kind support from the Nuxalk Stewardship Office.
dc.identifier.citationField, K. A., Short, M. L., Moody, J. E., Artelle, K. A., Bourbonnais, M. L., Paquet, P. C., & Darimont, C. T. (2024). Influence of ecotourism on grizzly bear activity depends on salmon abundance in the Atnarko River corridor, Nuxalk Territory. Conservation Science and Practice, 6(4). https://doi.org/10.1111/csp2.13097
dc.identifier.urihttps://doi.org/10.1111/csp2.13097
dc.identifier.urihttps://hdl.handle.net/1828/16684
dc.language.isoen
dc.publisherConservation Science and Practice
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectasset protection principle
dc.subjectbehavior
dc.subjectcamera traps
dc.subjectevidence-based management
dc.subjecthuman shield hypothesis
dc.subject.departmentDepartment of Geography
dc.titleInfluence of ecotourism on grizzly bear activity depends on salmon abundance in the Atnarko River corridor, Nuxalk Territory
dc.typeArticle

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