Infanticide as a male reproductive strategy has a nutritive risk effect in brown bears
Behavioural strategies to reduce predation risk can incur costs, which are often referred to as risk effects. A common strategy to avoid predation is spatio-temporal avoidance of predators, in which prey typically trade optimal resources for safety. Analogous with predator–prey theory, risk effects...
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ftpubmed:oai:pubmedcentral.nih.gov:3971711 2023-05-15T18:42:04+02:00 Infanticide as a male reproductive strategy has a nutritive risk effect in brown bears Steyaert, S. M. J. G. Reusch, C. Brunberg, S. Swenson, J. E. Hackländer, K. Zedrosser, A. 2013-10-23 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3971711 http://www.ncbi.nlm.nih.gov/pubmed/24088563 https://doi.org/10.1098/rsbl.2013.0624 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3971711 http://www.ncbi.nlm.nih.gov/pubmed/24088563 http://dx.doi.org/10.1098/rsbl.2013.0624 http://creativecommons.org/licenses/by/3.0/ © 2013 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0/, which permits unrestricted use, provided the original author and source are credited. CC-BY Animal Behaviour Text 2013 ftpubmed https://doi.org/10.1098/rsbl.2013.0624 2014-04-20T00:35:46Z Behavioural strategies to reduce predation risk can incur costs, which are often referred to as risk effects. A common strategy to avoid predation is spatio-temporal avoidance of predators, in which prey typically trade optimal resources for safety. Analogous with predator–prey theory, risk effects should also arise in species with sexually selected infanticide (SSI), in which females with dependent offspring avoid infanticidal males. SSI can be common in brown bear (Ursus arctos) populations and explains spatio-temporal segregation among reproductive classes. Here, we show that in a population with SSI, females with cubs-of-the-year had lower quality diets than conspecifics during the SSI high-risk period, the mating season. After the mating season, their diets were of similar quality to diets of their conspecifics. Our results suggest a nutritive risk effect of SSI, in which females with cubs-of-the-year alter their resource selection and trade optimal resources for offspring safety. Such risk effects can add to female costs of reproduction and may be widespread among species with SSI. Text Ursus arctos PubMed Central (PMC) Biology Letters 9 5 20130624 |
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PubMed Central (PMC) |
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language |
English |
topic |
Animal Behaviour |
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Animal Behaviour Steyaert, S. M. J. G. Reusch, C. Brunberg, S. Swenson, J. E. Hackländer, K. Zedrosser, A. Infanticide as a male reproductive strategy has a nutritive risk effect in brown bears |
topic_facet |
Animal Behaviour |
description |
Behavioural strategies to reduce predation risk can incur costs, which are often referred to as risk effects. A common strategy to avoid predation is spatio-temporal avoidance of predators, in which prey typically trade optimal resources for safety. Analogous with predator–prey theory, risk effects should also arise in species with sexually selected infanticide (SSI), in which females with dependent offspring avoid infanticidal males. SSI can be common in brown bear (Ursus arctos) populations and explains spatio-temporal segregation among reproductive classes. Here, we show that in a population with SSI, females with cubs-of-the-year had lower quality diets than conspecifics during the SSI high-risk period, the mating season. After the mating season, their diets were of similar quality to diets of their conspecifics. Our results suggest a nutritive risk effect of SSI, in which females with cubs-of-the-year alter their resource selection and trade optimal resources for offspring safety. Such risk effects can add to female costs of reproduction and may be widespread among species with SSI. |
format |
Text |
author |
Steyaert, S. M. J. G. Reusch, C. Brunberg, S. Swenson, J. E. Hackländer, K. Zedrosser, A. |
author_facet |
Steyaert, S. M. J. G. Reusch, C. Brunberg, S. Swenson, J. E. Hackländer, K. Zedrosser, A. |
author_sort |
Steyaert, S. M. J. G. |
title |
Infanticide as a male reproductive strategy has a nutritive risk effect in brown bears |
title_short |
Infanticide as a male reproductive strategy has a nutritive risk effect in brown bears |
title_full |
Infanticide as a male reproductive strategy has a nutritive risk effect in brown bears |
title_fullStr |
Infanticide as a male reproductive strategy has a nutritive risk effect in brown bears |
title_full_unstemmed |
Infanticide as a male reproductive strategy has a nutritive risk effect in brown bears |
title_sort |
infanticide as a male reproductive strategy has a nutritive risk effect in brown bears |
publisher |
The Royal Society |
publishDate |
2013 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3971711 http://www.ncbi.nlm.nih.gov/pubmed/24088563 https://doi.org/10.1098/rsbl.2013.0624 |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3971711 http://www.ncbi.nlm.nih.gov/pubmed/24088563 http://dx.doi.org/10.1098/rsbl.2013.0624 |
op_rights |
http://creativecommons.org/licenses/by/3.0/ © 2013 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0/, which permits unrestricted use, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rsbl.2013.0624 |
container_title |
Biology Letters |
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9 |
container_issue |
5 |
container_start_page |
20130624 |
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1766231673149587456 |