Data for: Harvest and decimation affect genetic drift and the effective population size in wild reindeer
Harvesting and culling are methods used to monitor and manage wildlife diseases. An important consequence of these practices is a change in the genetic dynamics of affected populations that may threaten their long-term viability. The effective population size (N e ) is a fundamental parameter for de...
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ftzenodo:oai:zenodo.org:10854271 2024-09-15T18:31:49+00:00 Data for: Harvest and decimation affect genetic drift and the effective population size in wild reindeer Kvalnes, Thomas Flagstad, Øystein Våge, Jørn Strand, Olav Viljugrein, Hildegunn Sæther, Bernt-Erik 2024-03-22 https://doi.org/10.5061/dryad.brv15dvh6 unknown Zenodo https://doi.org/10.5281/zenodo.10817124 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.brv15dvh6 oai:zenodo.org:10854271 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode bottleneck hunting matrix population model Population dynamics Rangifer tarandus vital rates info:eu-repo/semantics/other 2024 ftzenodo https://doi.org/10.5061/dryad.brv15dvh610.5281/zenodo.10817124 2024-07-26T21:53:53Z Harvesting and culling are methods used to monitor and manage wildlife diseases. An important consequence of these practices is a change in the genetic dynamics of affected populations that may threaten their long-term viability. The effective population size (N e ) is a fundamental parameter for describing such changes as it determines the amount of genetic drift in a population. Here, we estimate N e of a harvested wild reindeer population in Norway. Then we use simulations to investigate the genetic consequences of management efforts for handling a recent spread of chronic wasting disease, including increased adult male harvest and population decimation. The N e /N ratio in this population was found to be 0.124 at the end of the study period, compared to 0.239 in the preceding 14-year period. The difference was caused by increased harvest rates with a high proportion of adult males (older than 2.5 years) being shot (15.2 % in 2005-2018 and 44.8 % in 2021). Increased harvest rates decreased N e in the simulations, but less sex-biased harvest strategies had a lower negative impact. For harvest strategies that yield stable population dynamics, shifting the harvest from calves to adult males and females increased N e . Population decimation always resulted in decreased genetic variation in the population, with higher loss of heterozygosity and rare alleles with more severe decimation or longer periods of low population size. A very high proportion of males in the harvest had the most severe consequences for the loss of genetic variation. This study clearly shows how the effects of harvest strategies and changes in population size interact to determine the genetic drift of a managed population. The long-term genetic viability of wildlife populations subject to disease will also depend on the population impacts of the disease and how these interact with management actions. Funding provided by: Norwegian Environment Agency Crossref Funder Registry ID: https://ror.org/023jta124 Award Number: Funding provided by: ... Other/Unknown Material Rangifer tarandus Zenodo |
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Open Polar |
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Zenodo |
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ftzenodo |
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unknown |
topic |
bottleneck hunting matrix population model Population dynamics Rangifer tarandus vital rates |
spellingShingle |
bottleneck hunting matrix population model Population dynamics Rangifer tarandus vital rates Kvalnes, Thomas Flagstad, Øystein Våge, Jørn Strand, Olav Viljugrein, Hildegunn Sæther, Bernt-Erik Data for: Harvest and decimation affect genetic drift and the effective population size in wild reindeer |
topic_facet |
bottleneck hunting matrix population model Population dynamics Rangifer tarandus vital rates |
description |
Harvesting and culling are methods used to monitor and manage wildlife diseases. An important consequence of these practices is a change in the genetic dynamics of affected populations that may threaten their long-term viability. The effective population size (N e ) is a fundamental parameter for describing such changes as it determines the amount of genetic drift in a population. Here, we estimate N e of a harvested wild reindeer population in Norway. Then we use simulations to investigate the genetic consequences of management efforts for handling a recent spread of chronic wasting disease, including increased adult male harvest and population decimation. The N e /N ratio in this population was found to be 0.124 at the end of the study period, compared to 0.239 in the preceding 14-year period. The difference was caused by increased harvest rates with a high proportion of adult males (older than 2.5 years) being shot (15.2 % in 2005-2018 and 44.8 % in 2021). Increased harvest rates decreased N e in the simulations, but less sex-biased harvest strategies had a lower negative impact. For harvest strategies that yield stable population dynamics, shifting the harvest from calves to adult males and females increased N e . Population decimation always resulted in decreased genetic variation in the population, with higher loss of heterozygosity and rare alleles with more severe decimation or longer periods of low population size. A very high proportion of males in the harvest had the most severe consequences for the loss of genetic variation. This study clearly shows how the effects of harvest strategies and changes in population size interact to determine the genetic drift of a managed population. The long-term genetic viability of wildlife populations subject to disease will also depend on the population impacts of the disease and how these interact with management actions. Funding provided by: Norwegian Environment Agency Crossref Funder Registry ID: https://ror.org/023jta124 Award Number: Funding provided by: ... |
format |
Other/Unknown Material |
author |
Kvalnes, Thomas Flagstad, Øystein Våge, Jørn Strand, Olav Viljugrein, Hildegunn Sæther, Bernt-Erik |
author_facet |
Kvalnes, Thomas Flagstad, Øystein Våge, Jørn Strand, Olav Viljugrein, Hildegunn Sæther, Bernt-Erik |
author_sort |
Kvalnes, Thomas |
title |
Data for: Harvest and decimation affect genetic drift and the effective population size in wild reindeer |
title_short |
Data for: Harvest and decimation affect genetic drift and the effective population size in wild reindeer |
title_full |
Data for: Harvest and decimation affect genetic drift and the effective population size in wild reindeer |
title_fullStr |
Data for: Harvest and decimation affect genetic drift and the effective population size in wild reindeer |
title_full_unstemmed |
Data for: Harvest and decimation affect genetic drift and the effective population size in wild reindeer |
title_sort |
data for: harvest and decimation affect genetic drift and the effective population size in wild reindeer |
publisher |
Zenodo |
publishDate |
2024 |
url |
https://doi.org/10.5061/dryad.brv15dvh6 |
genre |
Rangifer tarandus |
genre_facet |
Rangifer tarandus |
op_relation |
https://doi.org/10.5281/zenodo.10817124 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.brv15dvh6 oai:zenodo.org:10854271 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.brv15dvh610.5281/zenodo.10817124 |
_version_ |
1810473560934711296 |