Contrasting genomic consequences of anthropogenic reintroduction and natural recolonization in high-arctic wild reindeer
Anthropogenic reintroduction can supplement natural recolonization in reestablishing a species' distribution and abundance. However, both reintroductions and recolonizations can give rise to founder effects that reduce genetic diversity and increase inbreeding, potentially causing the accumulat...
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Online Access: | https://hdl.handle.net/11250/3102886 https://doi.org/10.1111/eva.13585 |
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/3102886 2023-12-17T10:25:41+01:00 Contrasting genomic consequences of anthropogenic reintroduction and natural recolonization in high-arctic wild reindeer Burnett, Hamish Andrew Bieker, Vanessa Carina Le Moullec, Mathilde Peeters, Bart Rosvold, Jørgen Pedersen, Åshild Ønvik Dalén, Love Loe, Leif Egil Jensen, Henrik Hansen, Brage Bremset Martin, Michael David 2023 application/pdf https://hdl.handle.net/11250/3102886 https://doi.org/10.1111/eva.13585 eng eng John Wiley & Sons Ltd Norges forskningsråd: 325589 Norges forskningsråd: 295908 Norges forskningsråd: 276080 Norges forskningsråd: 223257 Svalbards miljøvernfond: 14/137 Svalbards miljøvernfond: 15/105 Norges forskningsråd: 302619 Sigma2: NN8052K Sigma2: NS8052K urn:issn:1752-4571 https://hdl.handle.net/11250/3102886 https://doi.org/10.1111/eva.13585 cristin:2168883 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no 1531-1548 16 Evolutionary Applications 9 Peer reviewed Journal article 2023 ftntnutrondheimi https://doi.org/10.1111/eva.13585 2023-11-22T23:46:56Z Anthropogenic reintroduction can supplement natural recolonization in reestablishing a species' distribution and abundance. However, both reintroductions and recolonizations can give rise to founder effects that reduce genetic diversity and increase inbreeding, potentially causing the accumulation of genetic load and reduced fitness. Most current populations of the endemic high-arctic Svalbard reindeer (Rangifer tarandus platyrhynchus) originate from recent reintroductions or recolonizations following regional extirpations due to past overharvesting. We investigated and compared the genomic consequences of these two paths to reestablishment using whole-genome shotgun sequencing of 100 Svalbard reindeer across their range. We found little admixture between reintroduced and natural populations. Two reintroduced populations, each founded by 12 individuals around four decades (i.e. 8 reindeer generations) ago, formed two distinct genetic clusters. Compared to the source population, these populations showed only small decreases in genome-wide heterozygosity and increases in inbreeding and lengths of runs of homozygosity. In contrast, the two naturally recolonized populations without admixture possessed much lower heterozygosity, higher inbreeding and longer runs of homozygosity, possibly caused by serial population founder effects and/or fewer or more genetically related founders than in the reintroduction events. Naturally recolonized populations can thus be more vulnerable to the accumulation of genetic load than reintroduced populations. This suggests that in some organisms even small-scale reintroduction programs based on genetically diverse source populations can be more effective than natural recolonization in establishing genetically diverse populations. These findings warrant particular attention in the conservation and management of populations and species threatened by habitat fragmentation and loss. publishedVersion Article in Journal/Newspaper Arctic Rangifer tarandus Rangifer tarandus platyrhynchus Svalbard svalbard reindeer NTNU Open Archive (Norwegian University of Science and Technology) Arctic Svalbard Evolutionary Applications 16 9 1531 1548 |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
Anthropogenic reintroduction can supplement natural recolonization in reestablishing a species' distribution and abundance. However, both reintroductions and recolonizations can give rise to founder effects that reduce genetic diversity and increase inbreeding, potentially causing the accumulation of genetic load and reduced fitness. Most current populations of the endemic high-arctic Svalbard reindeer (Rangifer tarandus platyrhynchus) originate from recent reintroductions or recolonizations following regional extirpations due to past overharvesting. We investigated and compared the genomic consequences of these two paths to reestablishment using whole-genome shotgun sequencing of 100 Svalbard reindeer across their range. We found little admixture between reintroduced and natural populations. Two reintroduced populations, each founded by 12 individuals around four decades (i.e. 8 reindeer generations) ago, formed two distinct genetic clusters. Compared to the source population, these populations showed only small decreases in genome-wide heterozygosity and increases in inbreeding and lengths of runs of homozygosity. In contrast, the two naturally recolonized populations without admixture possessed much lower heterozygosity, higher inbreeding and longer runs of homozygosity, possibly caused by serial population founder effects and/or fewer or more genetically related founders than in the reintroduction events. Naturally recolonized populations can thus be more vulnerable to the accumulation of genetic load than reintroduced populations. This suggests that in some organisms even small-scale reintroduction programs based on genetically diverse source populations can be more effective than natural recolonization in establishing genetically diverse populations. These findings warrant particular attention in the conservation and management of populations and species threatened by habitat fragmentation and loss. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Burnett, Hamish Andrew Bieker, Vanessa Carina Le Moullec, Mathilde Peeters, Bart Rosvold, Jørgen Pedersen, Åshild Ønvik Dalén, Love Loe, Leif Egil Jensen, Henrik Hansen, Brage Bremset Martin, Michael David |
spellingShingle |
Burnett, Hamish Andrew Bieker, Vanessa Carina Le Moullec, Mathilde Peeters, Bart Rosvold, Jørgen Pedersen, Åshild Ønvik Dalén, Love Loe, Leif Egil Jensen, Henrik Hansen, Brage Bremset Martin, Michael David Contrasting genomic consequences of anthropogenic reintroduction and natural recolonization in high-arctic wild reindeer |
author_facet |
Burnett, Hamish Andrew Bieker, Vanessa Carina Le Moullec, Mathilde Peeters, Bart Rosvold, Jørgen Pedersen, Åshild Ønvik Dalén, Love Loe, Leif Egil Jensen, Henrik Hansen, Brage Bremset Martin, Michael David |
author_sort |
Burnett, Hamish Andrew |
title |
Contrasting genomic consequences of anthropogenic reintroduction and natural recolonization in high-arctic wild reindeer |
title_short |
Contrasting genomic consequences of anthropogenic reintroduction and natural recolonization in high-arctic wild reindeer |
title_full |
Contrasting genomic consequences of anthropogenic reintroduction and natural recolonization in high-arctic wild reindeer |
title_fullStr |
Contrasting genomic consequences of anthropogenic reintroduction and natural recolonization in high-arctic wild reindeer |
title_full_unstemmed |
Contrasting genomic consequences of anthropogenic reintroduction and natural recolonization in high-arctic wild reindeer |
title_sort |
contrasting genomic consequences of anthropogenic reintroduction and natural recolonization in high-arctic wild reindeer |
publisher |
John Wiley & Sons Ltd |
publishDate |
2023 |
url |
https://hdl.handle.net/11250/3102886 https://doi.org/10.1111/eva.13585 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Rangifer tarandus Rangifer tarandus platyrhynchus Svalbard svalbard reindeer |
genre_facet |
Arctic Rangifer tarandus Rangifer tarandus platyrhynchus Svalbard svalbard reindeer |
op_source |
1531-1548 16 Evolutionary Applications 9 |
op_relation |
Norges forskningsråd: 325589 Norges forskningsråd: 295908 Norges forskningsråd: 276080 Norges forskningsråd: 223257 Svalbards miljøvernfond: 14/137 Svalbards miljøvernfond: 15/105 Norges forskningsråd: 302619 Sigma2: NN8052K Sigma2: NS8052K urn:issn:1752-4571 https://hdl.handle.net/11250/3102886 https://doi.org/10.1111/eva.13585 cristin:2168883 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no |
op_doi |
https://doi.org/10.1111/eva.13585 |
container_title |
Evolutionary Applications |
container_volume |
16 |
container_issue |
9 |
container_start_page |
1531 |
op_container_end_page |
1548 |
_version_ |
1785577340670050304 |