Resolving patterns of population genetic and phylogeographic structure to inform control and eradication initiatives for brown rats Rattus norvegicus on South Georgia
Summary The control and eradication of invasive species is a common management strategy to protect or restore native biodiversity. On South Georgia in the Southern Ocean, the brown rat Rattus norvegicus was brought onto the island with the onset of whaling and sealing activity in the 1800s and has h...
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crwiley:10.1111/1365-2664.12589 2024-06-23T07:56:57+00:00 Resolving patterns of population genetic and phylogeographic structure to inform control and eradication initiatives for brown rats Rattus norvegicus on South Georgia Piertney, Stuart B. Black, Andy Watt, Laura Christie, Darren Poncet, Sally Collins, Martin A. Bieber, Claudia UK Government's Overseas Territories Environmental Programme (OTEP) 2016 http://dx.doi.org/10.1111/1365-2664.12589 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2664.12589 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2664.12589 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Applied Ecology volume 53, issue 2, page 332-339 ISSN 0021-8901 1365-2664 journal-article 2016 crwiley https://doi.org/10.1111/1365-2664.12589 2024-06-11T04:45:04Z Summary The control and eradication of invasive species is a common management strategy to protect or restore native biodiversity. On South Georgia in the Southern Ocean, the brown rat Rattus norvegicus was brought onto the island with the onset of whaling and sealing activity in the 1800s and has had a significant detrimental impact on key bird species of conservation concern. Efforts to eradicate rats from South Georgia using poisoned bait are ongoing. Despite the South Georgia rat eradication programme being the geographically largest and most ambitious eradication initiative to date, its success is facilitated by the potential that rat populations are effectively isolated by glacial barriers. This allows for localized eradication effort at manageable scales, leading to sequential eradication of individual populations with minimal risk of incursion from neighbouring areas. Here, we use the levels of population genetic divergence estimated from 299 single nucleotide polymorphism ( SNP ) loci and DNA sequence variation across 993 base pairs of the mitochondrial DNA cytochrome B locus to examine whether rat populations from nine glacially isolated areas on South Georgia are genetically distinct and so can be treated as independent eradication units. Bayesian clustering of individuals based on SNP similarity identified seven different genetic groups, which were confirmed using analyses based on pairwise genetic distance estimates and ordination of individuals using principal coordinate analysis. From a management perspective, these seven groups represent individual targets in baiting operations. Two mt DNA haplotypes were resolved across South Georgia, with a distinct geographical separation between the north‐western and south‐eastern populations. Approximate Bayesian computation ( ABC ) was used to identify that this divergence was a consequence of two separate historical colonization events. Synthesis and applications . We illustrate that molecular markers are a valuable tool in species management and pest ... Article in Journal/Newspaper Southern Ocean Wiley Online Library Southern Ocean Journal of Applied Ecology 53 2 332 339 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Summary The control and eradication of invasive species is a common management strategy to protect or restore native biodiversity. On South Georgia in the Southern Ocean, the brown rat Rattus norvegicus was brought onto the island with the onset of whaling and sealing activity in the 1800s and has had a significant detrimental impact on key bird species of conservation concern. Efforts to eradicate rats from South Georgia using poisoned bait are ongoing. Despite the South Georgia rat eradication programme being the geographically largest and most ambitious eradication initiative to date, its success is facilitated by the potential that rat populations are effectively isolated by glacial barriers. This allows for localized eradication effort at manageable scales, leading to sequential eradication of individual populations with minimal risk of incursion from neighbouring areas. Here, we use the levels of population genetic divergence estimated from 299 single nucleotide polymorphism ( SNP ) loci and DNA sequence variation across 993 base pairs of the mitochondrial DNA cytochrome B locus to examine whether rat populations from nine glacially isolated areas on South Georgia are genetically distinct and so can be treated as independent eradication units. Bayesian clustering of individuals based on SNP similarity identified seven different genetic groups, which were confirmed using analyses based on pairwise genetic distance estimates and ordination of individuals using principal coordinate analysis. From a management perspective, these seven groups represent individual targets in baiting operations. Two mt DNA haplotypes were resolved across South Georgia, with a distinct geographical separation between the north‐western and south‐eastern populations. Approximate Bayesian computation ( ABC ) was used to identify that this divergence was a consequence of two separate historical colonization events. Synthesis and applications . We illustrate that molecular markers are a valuable tool in species management and pest ... |
author2 |
Bieber, Claudia UK Government's Overseas Territories Environmental Programme (OTEP) |
format |
Article in Journal/Newspaper |
author |
Piertney, Stuart B. Black, Andy Watt, Laura Christie, Darren Poncet, Sally Collins, Martin A. |
spellingShingle |
Piertney, Stuart B. Black, Andy Watt, Laura Christie, Darren Poncet, Sally Collins, Martin A. Resolving patterns of population genetic and phylogeographic structure to inform control and eradication initiatives for brown rats Rattus norvegicus on South Georgia |
author_facet |
Piertney, Stuart B. Black, Andy Watt, Laura Christie, Darren Poncet, Sally Collins, Martin A. |
author_sort |
Piertney, Stuart B. |
title |
Resolving patterns of population genetic and phylogeographic structure to inform control and eradication initiatives for brown rats Rattus norvegicus on South Georgia |
title_short |
Resolving patterns of population genetic and phylogeographic structure to inform control and eradication initiatives for brown rats Rattus norvegicus on South Georgia |
title_full |
Resolving patterns of population genetic and phylogeographic structure to inform control and eradication initiatives for brown rats Rattus norvegicus on South Georgia |
title_fullStr |
Resolving patterns of population genetic and phylogeographic structure to inform control and eradication initiatives for brown rats Rattus norvegicus on South Georgia |
title_full_unstemmed |
Resolving patterns of population genetic and phylogeographic structure to inform control and eradication initiatives for brown rats Rattus norvegicus on South Georgia |
title_sort |
resolving patterns of population genetic and phylogeographic structure to inform control and eradication initiatives for brown rats rattus norvegicus on south georgia |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/1365-2664.12589 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2664.12589 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2664.12589 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Journal of Applied Ecology volume 53, issue 2, page 332-339 ISSN 0021-8901 1365-2664 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/1365-2664.12589 |
container_title |
Journal of Applied Ecology |
container_volume |
53 |
container_issue |
2 |
container_start_page |
332 |
op_container_end_page |
339 |
_version_ |
1802650353593745408 |