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  1. Data from: Hunting promotes sexual conflict in brown bears

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    Updated May 30, 2022
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    Jacinthe Gosselin; Martin Leclerc; Andreas Zedrosser; Sam M. J. G. Steyaert; Jon E. Swenson; Fanie Pelletier; Jacinthe Gosselin; Martin Leclerc; Andreas Zedrosser; Sam M. J. G. Steyaert; Jon E. Swenson; Fanie Pelletier (2022). Data from: Hunting promotes sexual conflict in brown bears [Dataset]. http://doi.org/10.5061/dryad.tc2cb
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    txtAvailable download formats
    Dataset updated
    May 30, 2022
    Dataset provided by
    Zenodohttp://zenodo.org/
    Authors
    Jacinthe Gosselin; Martin Leclerc; Andreas Zedrosser; Sam M. J. G. Steyaert; Jon E. Swenson; Fanie Pelletier; Jacinthe Gosselin; Martin Leclerc; Andreas Zedrosser; Sam M. J. G. Steyaert; Jon E. Swenson; Fanie Pelletier
    License

    CC0 1.0 Universal Public Domain Dedicationhttps://creativecommons.org/publicdomain/zero/1.0/
    License information was derived automatically

    Description

    The removal of individuals through hunting can destabilize social structure, potentially affecting population dynamics. Although previous studies have shown that hunting can indirectly reduce juvenile survival through increased sexually selected infanticide (SSI), very little is known about the spatiotemporal effects of male hunting on juvenile survival. Using detailed individual monitoring of a hunted population of brown bears (Ursus arctos) in Sweden (1991–2011), we assessed the spatiotemporal effect of male removal on cub survival. We modelled cub survival before, during and after the mating season. We used three proxies to evaluate spatial and temporal variation in male turnover; distance and timing of the closest male killed and number of males that died around a female's home range centre. Male removal decreased cub survival only during the mating season, as expected in seasonal breeders with SSI. Cub survival increased with distance to the closest male killed within the previous 1·5 years, and it was lower when the closest male killed was removed 1·5 instead of 0·5 year earlier. We did not detect an effect of the number of males killed. Our results support the hypothesis that social restructuring due to hunting can reduce recruitment and suggest that the distribution of the male deaths might be more important than the overall number of males that die. As the removal of individuals through hunting is typically not homogenously distributed across the landscape, spatial heterogeneity in hunting pressure may cause source–sink dynamics, with lower recruitment in areas of high human-induced mortality.

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Click to copy link
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Jacinthe Gosselin; Martin Leclerc; Andreas Zedrosser; Sam M. J. G. Steyaert; Jon E. Swenson; Fanie Pelletier; Jacinthe Gosselin; Martin Leclerc; Andreas Zedrosser; Sam M. J. G. Steyaert; Jon E. Swenson; Fanie Pelletier (2022). Data from: Hunting promotes sexual conflict in brown bears [Dataset]. http://doi.org/10.5061/dryad.tc2cb
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Data from: Hunting promotes sexual conflict in brown bears

Related Article
Explore at:
txtAvailable download formats
Dataset updated
May 30, 2022
Dataset provided by
Zenodohttp://zenodo.org/
Authors
Jacinthe Gosselin; Martin Leclerc; Andreas Zedrosser; Sam M. J. G. Steyaert; Jon E. Swenson; Fanie Pelletier; Jacinthe Gosselin; Martin Leclerc; Andreas Zedrosser; Sam M. J. G. Steyaert; Jon E. Swenson; Fanie Pelletier
License

CC0 1.0 Universal Public Domain Dedicationhttps://creativecommons.org/publicdomain/zero/1.0/
License information was derived automatically

Description

The removal of individuals through hunting can destabilize social structure, potentially affecting population dynamics. Although previous studies have shown that hunting can indirectly reduce juvenile survival through increased sexually selected infanticide (SSI), very little is known about the spatiotemporal effects of male hunting on juvenile survival. Using detailed individual monitoring of a hunted population of brown bears (Ursus arctos) in Sweden (1991–2011), we assessed the spatiotemporal effect of male removal on cub survival. We modelled cub survival before, during and after the mating season. We used three proxies to evaluate spatial and temporal variation in male turnover; distance and timing of the closest male killed and number of males that died around a female's home range centre. Male removal decreased cub survival only during the mating season, as expected in seasonal breeders with SSI. Cub survival increased with distance to the closest male killed within the previous 1·5 years, and it was lower when the closest male killed was removed 1·5 instead of 0·5 year earlier. We did not detect an effect of the number of males killed. Our results support the hypothesis that social restructuring due to hunting can reduce recruitment and suggest that the distribution of the male deaths might be more important than the overall number of males that die. As the removal of individuals through hunting is typically not homogenously distributed across the landscape, spatial heterogeneity in hunting pressure may cause source–sink dynamics, with lower recruitment in areas of high human-induced mortality.

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