Rattus population genomics across the Haida Gwaii archipelago provides a framework for guiding invasive species management
Abstract Invasive species have led to precipitous declines in biodiversity, especially in island systems. Brown (Rattus norvegicus) and black rats (R. rattus) are among the most invasive animals on the planet, with eradication being the primary tool for established island populations. The need for i...
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ftdoajarticles:oai:doaj.org/article:a95a03df54fb431fb37c7b24d015abb8 2023-05-15T18:05:33+02:00 Rattus population genomics across the Haida Gwaii archipelago provides a framework for guiding invasive species management Bryson M. F. Sjodin Robyn L. Irvine Adam T. Ford Gregg R. Howald Michael A. Russello 2020-05-01T00:00:00Z https://doi.org/10.1111/eva.12907 https://doaj.org/article/a95a03df54fb431fb37c7b24d015abb8 EN eng Wiley https://doi.org/10.1111/eva.12907 https://doaj.org/toc/1752-4571 1752-4571 doi:10.1111/eva.12907 https://doaj.org/article/a95a03df54fb431fb37c7b24d015abb8 Evolutionary Applications, Vol 13, Iss 5, Pp 889-904 (2020) conservation invasive species island biogeography population genetics Rattus norvegicus Rattus rattus Evolution QH359-425 article 2020 ftdoajarticles https://doi.org/10.1111/eva.12907 2022-12-31T00:54:56Z Abstract Invasive species have led to precipitous declines in biodiversity, especially in island systems. Brown (Rattus norvegicus) and black rats (R. rattus) are among the most invasive animals on the planet, with eradication being the primary tool for established island populations. The need for increased research for defining eradication units and monitoring outcomes has been highlighted as a means to maximize success. Haida Gwaii is an archipelago ~100 km off the northern coast of British Columbia, Canada, that hosts globally significant breeding populations of seabirds that are at risk due to invasive rats. Here, we paired sampling of brown (n = 287) and black (n = 291) rats across the Haida Gwaii archipelago with genotyping by sequencing (10,770–27,686 SNPs) to investigate patterns of population connectivity and infer levels/direction of gene flow among invasive rat populations in Haida Gwaii. We reconstructed three regional clusters for both species (north, central and south), with proximate populations within regions being largely more related than those that were more distant, consistent with predictions from island biogeography theory. Population assignment of recently detected individuals post‐eradication on Faraday, Murchison and the Bischof Islands revealed all were re‐invaders from Lyell Island, rather than being on‐island survivors. Based on these results, we identified six eradication units constituting single or clusters of islands that would limit the potential for reinvasion, some of which will need to be combined with biosecurity measures. Overall, our results highlight the importance of targeted research prior to conducting eradications and demonstrate a framework for applying population genomics for guiding invasive species management in island systems. Article in Journal/Newspaper Rattus rattus Directory of Open Access Journals: DOAJ Articles Canada British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Faraday ENVELOPE(-64.256,-64.256,-65.246,-65.246) Murchison ENVELOPE(144.250,144.250,-67.317,-67.317) Lyell Island ENVELOPE(-131.568,-131.568,52.670,52.670) Bischof Islands ENVELOPE(-131.559,-131.559,52.575,52.575) Evolutionary Applications 13 5 889 904 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
conservation invasive species island biogeography population genetics Rattus norvegicus Rattus rattus Evolution QH359-425 |
spellingShingle |
conservation invasive species island biogeography population genetics Rattus norvegicus Rattus rattus Evolution QH359-425 Bryson M. F. Sjodin Robyn L. Irvine Adam T. Ford Gregg R. Howald Michael A. Russello Rattus population genomics across the Haida Gwaii archipelago provides a framework for guiding invasive species management |
topic_facet |
conservation invasive species island biogeography population genetics Rattus norvegicus Rattus rattus Evolution QH359-425 |
description |
Abstract Invasive species have led to precipitous declines in biodiversity, especially in island systems. Brown (Rattus norvegicus) and black rats (R. rattus) are among the most invasive animals on the planet, with eradication being the primary tool for established island populations. The need for increased research for defining eradication units and monitoring outcomes has been highlighted as a means to maximize success. Haida Gwaii is an archipelago ~100 km off the northern coast of British Columbia, Canada, that hosts globally significant breeding populations of seabirds that are at risk due to invasive rats. Here, we paired sampling of brown (n = 287) and black (n = 291) rats across the Haida Gwaii archipelago with genotyping by sequencing (10,770–27,686 SNPs) to investigate patterns of population connectivity and infer levels/direction of gene flow among invasive rat populations in Haida Gwaii. We reconstructed three regional clusters for both species (north, central and south), with proximate populations within regions being largely more related than those that were more distant, consistent with predictions from island biogeography theory. Population assignment of recently detected individuals post‐eradication on Faraday, Murchison and the Bischof Islands revealed all were re‐invaders from Lyell Island, rather than being on‐island survivors. Based on these results, we identified six eradication units constituting single or clusters of islands that would limit the potential for reinvasion, some of which will need to be combined with biosecurity measures. Overall, our results highlight the importance of targeted research prior to conducting eradications and demonstrate a framework for applying population genomics for guiding invasive species management in island systems. |
format |
Article in Journal/Newspaper |
author |
Bryson M. F. Sjodin Robyn L. Irvine Adam T. Ford Gregg R. Howald Michael A. Russello |
author_facet |
Bryson M. F. Sjodin Robyn L. Irvine Adam T. Ford Gregg R. Howald Michael A. Russello |
author_sort |
Bryson M. F. Sjodin |
title |
Rattus population genomics across the Haida Gwaii archipelago provides a framework for guiding invasive species management |
title_short |
Rattus population genomics across the Haida Gwaii archipelago provides a framework for guiding invasive species management |
title_full |
Rattus population genomics across the Haida Gwaii archipelago provides a framework for guiding invasive species management |
title_fullStr |
Rattus population genomics across the Haida Gwaii archipelago provides a framework for guiding invasive species management |
title_full_unstemmed |
Rattus population genomics across the Haida Gwaii archipelago provides a framework for guiding invasive species management |
title_sort |
rattus population genomics across the haida gwaii archipelago provides a framework for guiding invasive species management |
publisher |
Wiley |
publishDate |
2020 |
url |
https://doi.org/10.1111/eva.12907 https://doaj.org/article/a95a03df54fb431fb37c7b24d015abb8 |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) ENVELOPE(-64.256,-64.256,-65.246,-65.246) ENVELOPE(144.250,144.250,-67.317,-67.317) ENVELOPE(-131.568,-131.568,52.670,52.670) ENVELOPE(-131.559,-131.559,52.575,52.575) |
geographic |
Canada British Columbia Faraday Murchison Lyell Island Bischof Islands |
geographic_facet |
Canada British Columbia Faraday Murchison Lyell Island Bischof Islands |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_source |
Evolutionary Applications, Vol 13, Iss 5, Pp 889-904 (2020) |
op_relation |
https://doi.org/10.1111/eva.12907 https://doaj.org/toc/1752-4571 1752-4571 doi:10.1111/eva.12907 https://doaj.org/article/a95a03df54fb431fb37c7b24d015abb8 |
op_doi |
https://doi.org/10.1111/eva.12907 |
container_title |
Evolutionary Applications |
container_volume |
13 |
container_issue |
5 |
container_start_page |
889 |
op_container_end_page |
904 |
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1766177036183797760 |