Heritability of head size in a hunted large carnivore, the brown bear (Ursus arctos)
Wild animal populations experience selection pressures from both natural and anthropogenic sources. The availability of extensive pedigrees is increasing along with our ability to quantify the heritability and evolvability of phenotypic traits and thus the speed and potential for evolutionary change...
Published in: | Evolutionary Applications |
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ftoslouniv:oai:www.duo.uio.no:10852/74186 2023-05-15T18:41:51+02:00 Heritability of head size in a hunted large carnivore, the brown bear (Ursus arctos) AKAkanAkanHeritability of head size in a hunted large carnivore, the brown bear ( Ursus arctos ) Rivrud, Inger Maren Frank, Shane Bischof, Richard Mysterud, Atle Steyaert, Sam Hertel, Anne Gabriela Hagen, Snorre Eiken, Hans Geir Swenson, Jon Zedrosser, Andreas 2019-04-11T11:00:11Z http://hdl.handle.net/10852/74186 http://urn.nb.no/URN:NBN:no-77272 https://doi.org/10.1111/eva.12786 EN eng EC/H2020/793077 http://urn.nb.no/URN:NBN:no-77272 Rivrud, Inger Maren Frank, Shane Bischof, Richard Mysterud, Atle Steyaert, Sam Hertel, Anne Gabriela Hagen, Snorre Eiken, Hans Geir Swenson, Jon Zedrosser, Andreas . Heritability of head size in a hunted large carnivore, the brown bear (Ursus arctos). Evolutionary Applications. 2019, 12(6), 1124-1135 http://hdl.handle.net/10852/74186 1691551 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Evolutionary Applications&rft.volume=12&rft.spage=1124&rft.date=2019 Evolutionary Applications 12 6 1124 1135 https://doi.org/10.1111/eva.12786 URN:NBN:no-77272 Fulltext https://www.duo.uio.no/bitstream/handle/10852/74186/1/2019_10_1111_eva.12786.pdf Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY 1752-4571 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2019 ftoslouniv https://doi.org/10.1111/eva.12786 2020-06-21T08:53:55Z Wild animal populations experience selection pressures from both natural and anthropogenic sources. The availability of extensive pedigrees is increasing along with our ability to quantify the heritability and evolvability of phenotypic traits and thus the speed and potential for evolutionary change in wild populations. The environment may also affect gene expressions in individuals, which may in turn affect the potential of phenotypic traits to respond to selection. Knowledge about the relationship between the genetic and environmental components of phenotypic variation is particularly relevant, given ongoing anthropogenically driven global change. Using a quantitative genetic mixed model, we disentangled the genetic and environmental components of phenotypic variance in a large carnivore, the brown bear (Ursus arctos). We combined a pedigree covering ~1,500 individual bears over seven generations with location data from 413 bears, as well as data on bear density, habitat characteristics, and climatic conditions. We found a narrow‐sense heritability of 0.24 (95% CrI: 0.06–0.38) for brown bear head size, showing that the trait can respond to selection at a moderate speed. The environment contributed substantially to phenotypic variation, and we partitioned this into birth year (5.9%), nonadditive among‐individual genetic (15.0%), and residual (50.4%) environmental effects. Brown bear head circumference showed an evolvability of 0.2%, which can generate large changes in the trait mean over some hundreds of generations. Our study is among the first to quantify heritability of a trait in a hunted large carnivore population. Such knowledge about the degree to which species experiencing hunting can respond to selection is crucial for conservation and to make informed management decisions. We show that including important environmental variables when analyzing heritability is key to understanding the dynamics of the evolutionary potential of phenotypic traits. Article in Journal/Newspaper Ursus arctos Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Evolutionary Applications 12 6 1124 1135 |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
Wild animal populations experience selection pressures from both natural and anthropogenic sources. The availability of extensive pedigrees is increasing along with our ability to quantify the heritability and evolvability of phenotypic traits and thus the speed and potential for evolutionary change in wild populations. The environment may also affect gene expressions in individuals, which may in turn affect the potential of phenotypic traits to respond to selection. Knowledge about the relationship between the genetic and environmental components of phenotypic variation is particularly relevant, given ongoing anthropogenically driven global change. Using a quantitative genetic mixed model, we disentangled the genetic and environmental components of phenotypic variance in a large carnivore, the brown bear (Ursus arctos). We combined a pedigree covering ~1,500 individual bears over seven generations with location data from 413 bears, as well as data on bear density, habitat characteristics, and climatic conditions. We found a narrow‐sense heritability of 0.24 (95% CrI: 0.06–0.38) for brown bear head size, showing that the trait can respond to selection at a moderate speed. The environment contributed substantially to phenotypic variation, and we partitioned this into birth year (5.9%), nonadditive among‐individual genetic (15.0%), and residual (50.4%) environmental effects. Brown bear head circumference showed an evolvability of 0.2%, which can generate large changes in the trait mean over some hundreds of generations. Our study is among the first to quantify heritability of a trait in a hunted large carnivore population. Such knowledge about the degree to which species experiencing hunting can respond to selection is crucial for conservation and to make informed management decisions. We show that including important environmental variables when analyzing heritability is key to understanding the dynamics of the evolutionary potential of phenotypic traits. |
format |
Article in Journal/Newspaper |
author |
Rivrud, Inger Maren Frank, Shane Bischof, Richard Mysterud, Atle Steyaert, Sam Hertel, Anne Gabriela Hagen, Snorre Eiken, Hans Geir Swenson, Jon Zedrosser, Andreas |
spellingShingle |
Rivrud, Inger Maren Frank, Shane Bischof, Richard Mysterud, Atle Steyaert, Sam Hertel, Anne Gabriela Hagen, Snorre Eiken, Hans Geir Swenson, Jon Zedrosser, Andreas Heritability of head size in a hunted large carnivore, the brown bear (Ursus arctos) |
author_facet |
Rivrud, Inger Maren Frank, Shane Bischof, Richard Mysterud, Atle Steyaert, Sam Hertel, Anne Gabriela Hagen, Snorre Eiken, Hans Geir Swenson, Jon Zedrosser, Andreas |
author_sort |
Rivrud, Inger Maren |
title |
Heritability of head size in a hunted large carnivore, the brown bear (Ursus arctos) |
title_short |
Heritability of head size in a hunted large carnivore, the brown bear (Ursus arctos) |
title_full |
Heritability of head size in a hunted large carnivore, the brown bear (Ursus arctos) |
title_fullStr |
Heritability of head size in a hunted large carnivore, the brown bear (Ursus arctos) |
title_full_unstemmed |
Heritability of head size in a hunted large carnivore, the brown bear (Ursus arctos) |
title_sort |
heritability of head size in a hunted large carnivore, the brown bear (ursus arctos) |
publishDate |
2019 |
url |
http://hdl.handle.net/10852/74186 http://urn.nb.no/URN:NBN:no-77272 https://doi.org/10.1111/eva.12786 |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_source |
1752-4571 |
op_relation |
EC/H2020/793077 http://urn.nb.no/URN:NBN:no-77272 Rivrud, Inger Maren Frank, Shane Bischof, Richard Mysterud, Atle Steyaert, Sam Hertel, Anne Gabriela Hagen, Snorre Eiken, Hans Geir Swenson, Jon Zedrosser, Andreas . Heritability of head size in a hunted large carnivore, the brown bear (Ursus arctos). Evolutionary Applications. 2019, 12(6), 1124-1135 http://hdl.handle.net/10852/74186 1691551 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Evolutionary Applications&rft.volume=12&rft.spage=1124&rft.date=2019 Evolutionary Applications 12 6 1124 1135 https://doi.org/10.1111/eva.12786 URN:NBN:no-77272 Fulltext https://www.duo.uio.no/bitstream/handle/10852/74186/1/2019_10_1111_eva.12786.pdf |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1111/eva.12786 |
container_title |
Evolutionary Applications |
container_volume |
12 |
container_issue |
6 |
container_start_page |
1124 |
op_container_end_page |
1135 |
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1766231415983177728 |