The relative importance of direct and indirect effects of hunting mortality on the population dynamics of brown bears
- There is increasing evidence of indirect effects of hunting on populations. In species with sexually selected infanticide (SSI), hunting may decrease juvenile survival by increasing male turnover.We aimed to evaluate the relative importance of direct and indirect effects of hunting via SSI on the...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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Online Access: | http://hdl.handle.net/11250/278968 https://doi.org/10.1098/rspb.2014.1840 |
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ftunivmob:oai:nmbu.brage.unit.no:11250/278968 2023-05-15T18:42:07+02:00 The relative importance of direct and indirect effects of hunting mortality on the population dynamics of brown bears Gosselin, Jacinthe Zedrosser, Andreas Swenson, Jon Pelletier, Fanie 2015-03-09T12:48:50Z application/pdf http://hdl.handle.net/11250/278968 https://doi.org/10.1098/rspb.2014.1840 eng eng Norges forskningsråd: 20182 Proceedings of the Royal Society of London. Biological Sciences 2014, 282(1798) urn:issn:1471-2954 http://hdl.handle.net/11250/278968 https://doi.org/10.1098/rspb.2014.1840 cristin:1185369 Navngivelse 3.0 Norge http://creativecommons.org/licenses/by/3.0/no/ CC-BY Journal article Peer reviewed 2015 ftunivmob https://doi.org/10.1098/rspb.2014.1840 2021-09-23T20:15:54Z - There is increasing evidence of indirect effects of hunting on populations. In species with sexually selected infanticide (SSI), hunting may decrease juvenile survival by increasing male turnover.We aimed to evaluate the relative importance of direct and indirect effects of hunting via SSI on the population dynamics of the Scandinavian brown bear (Ursus arctos). We performed prospective and retrospective demographic perturbation analyses for periods with low and high hunting pressures. All demographic rates, except yearling survival, were lower under high hunting pressure, which led to a decline in population growth under high hunting pressure (l ¼ 0.975; 95% CI ¼ 0.914– 1.011). Hunting had negative indirect effects on the population through an increase in SSI, which lowered cub survival and possibly also fecundity rates. Our study suggests that SSI could explain 13.6% of the variation in population growth.Hunting also affected the relative importance of survival and fecundity of adult females for population growth, with fecundity being more important under low hunting pressure and survival more important under high hunting pressure. Our study sheds light on the importance of direct and indirect effects of hunting on population dynamics, and supports the contention that hunting can have indirect negative effects on populations through SSI. population dynamics, harvesting, brown bear, sexually selected infanticide, behaviour, carnivore, ecology, behaviour Article in Journal/Newspaper Ursus arctos Open archive Norwegian University of Life Sciences: Brage NMBU Proceedings of the Royal Society B: Biological Sciences 282 1798 20141840 |
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Open Polar |
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Open archive Norwegian University of Life Sciences: Brage NMBU |
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ftunivmob |
language |
English |
description |
- There is increasing evidence of indirect effects of hunting on populations. In species with sexually selected infanticide (SSI), hunting may decrease juvenile survival by increasing male turnover.We aimed to evaluate the relative importance of direct and indirect effects of hunting via SSI on the population dynamics of the Scandinavian brown bear (Ursus arctos). We performed prospective and retrospective demographic perturbation analyses for periods with low and high hunting pressures. All demographic rates, except yearling survival, were lower under high hunting pressure, which led to a decline in population growth under high hunting pressure (l ¼ 0.975; 95% CI ¼ 0.914– 1.011). Hunting had negative indirect effects on the population through an increase in SSI, which lowered cub survival and possibly also fecundity rates. Our study suggests that SSI could explain 13.6% of the variation in population growth.Hunting also affected the relative importance of survival and fecundity of adult females for population growth, with fecundity being more important under low hunting pressure and survival more important under high hunting pressure. Our study sheds light on the importance of direct and indirect effects of hunting on population dynamics, and supports the contention that hunting can have indirect negative effects on populations through SSI. population dynamics, harvesting, brown bear, sexually selected infanticide, behaviour, carnivore, ecology, behaviour |
format |
Article in Journal/Newspaper |
author |
Gosselin, Jacinthe Zedrosser, Andreas Swenson, Jon Pelletier, Fanie |
spellingShingle |
Gosselin, Jacinthe Zedrosser, Andreas Swenson, Jon Pelletier, Fanie The relative importance of direct and indirect effects of hunting mortality on the population dynamics of brown bears |
author_facet |
Gosselin, Jacinthe Zedrosser, Andreas Swenson, Jon Pelletier, Fanie |
author_sort |
Gosselin, Jacinthe |
title |
The relative importance of direct and indirect effects of hunting mortality on the population dynamics of brown bears |
title_short |
The relative importance of direct and indirect effects of hunting mortality on the population dynamics of brown bears |
title_full |
The relative importance of direct and indirect effects of hunting mortality on the population dynamics of brown bears |
title_fullStr |
The relative importance of direct and indirect effects of hunting mortality on the population dynamics of brown bears |
title_full_unstemmed |
The relative importance of direct and indirect effects of hunting mortality on the population dynamics of brown bears |
title_sort |
relative importance of direct and indirect effects of hunting mortality on the population dynamics of brown bears |
publishDate |
2015 |
url |
http://hdl.handle.net/11250/278968 https://doi.org/10.1098/rspb.2014.1840 |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_relation |
Norges forskningsråd: 20182 Proceedings of the Royal Society of London. Biological Sciences 2014, 282(1798) urn:issn:1471-2954 http://hdl.handle.net/11250/278968 https://doi.org/10.1098/rspb.2014.1840 cristin:1185369 |
op_rights |
Navngivelse 3.0 Norge http://creativecommons.org/licenses/by/3.0/no/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rspb.2014.1840 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
282 |
container_issue |
1798 |
container_start_page |
20141840 |
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1766231734917005312 |