Data from: Consequences of a demographic bottleneck on genetic structure and variation in the Scandinavian brown bear
The Scandinavian brown bear went through a major decline in population size approximately 100 years ago, due to intense hunting. After being protected, the population subsequently recovered and today numbers in the thousands. The genetic diversity in the contemporary population has been investigated...
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Online Access: | https://doi.org/10.5061/dryad.dn7b8 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::a04adfb6b874e9d66811a1817fb597e5 2023-05-15T18:42:13+02:00 Data from: Consequences of a demographic bottleneck on genetic structure and variation in the Scandinavian brown bear Xenikoudakis, Georgios Ersmark, Erik Waits, Lisette Kindberg, Jonas Swenson, Jon E. Dalén, Love Swenson, J. E. Waits, L. Xenikoudakis, G. Ersmark, E. Kindberg, J. 2015-01-01 https://doi.org/10.5061/dryad.dn7b8 en eng Dryad http://dx.doi.org/10.5061/dryad.dn7b8 https://dx.doi.org/10.5061/dryad.dn7b8 lic_creative-commons 10.5061/dryad.dn7b8 oai:easy.dans.knaw.nl:easy-dataset:87126 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:87126 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 re3data_____::r3d100000044 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c decline microsatellites Ursus arctos mtDNA bottleneck Holocene Life sciences medicine and health care Scandinavia envir demo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2015 fttriple https://doi.org/10.5061/dryad.dn7b8 2023-01-22T16:52:43Z The Scandinavian brown bear went through a major decline in population size approximately 100 years ago, due to intense hunting. After being protected, the population subsequently recovered and today numbers in the thousands. The genetic diversity in the contemporary population has been investigated in considerable detail, and it has been shown that the population consists of several subpopulations that display relatively high levels of genetic variation. However, previous studies have been unable to resolve the degree to which the demographic bottleneck impacted the contemporary genetic structure and diversity. In this study, we used mitochondrial and microsatellite DNA markers from pre- and postbottleneck Scandinavian brown bear samples to investigate the effect of the bottleneck. Simulation and multivariate analysis suggested the same genetic structure for the historical and modern samples, which are clustered into three subpopulations in southern, central and northern Scandinavia. However, the southern subpopulation appears to have gone through a marked change in allele frequencies. When comparing the mitochondrial DNA diversity in the whole population, we found a major decline in haplotype numbers across the bottleneck. However, the loss of autosomal genetic diversity was less pronounced, although a significant decline in allelic richness was observed in the southern subpopulation. Approximate Bayesian computations provided clear support for a decline in effective population size during the bottleneck, in both the southern and northern subpopulations. These results have implications for the future management of the Scandinavian brown bear because they indicate a recent loss in genetic diversity and also that the current genetic structure may have been caused by historical ecological processes rather than recent anthropogenic persecution. BrownBear_historicalsamples_microsatsAlignment_Scandinavian_Brown_Bear_Modern_and_Historical_SamplesSequence alignment including individuals from the historical and modern ... Dataset Ursus arctos Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
decline microsatellites Ursus arctos mtDNA bottleneck Holocene Life sciences medicine and health care Scandinavia envir demo |
spellingShingle |
decline microsatellites Ursus arctos mtDNA bottleneck Holocene Life sciences medicine and health care Scandinavia envir demo Xenikoudakis, Georgios Ersmark, Erik Waits, Lisette Kindberg, Jonas Swenson, Jon E. Dalén, Love Swenson, J. E. Waits, L. Xenikoudakis, G. Ersmark, E. Kindberg, J. Data from: Consequences of a demographic bottleneck on genetic structure and variation in the Scandinavian brown bear |
topic_facet |
decline microsatellites Ursus arctos mtDNA bottleneck Holocene Life sciences medicine and health care Scandinavia envir demo |
description |
The Scandinavian brown bear went through a major decline in population size approximately 100 years ago, due to intense hunting. After being protected, the population subsequently recovered and today numbers in the thousands. The genetic diversity in the contemporary population has been investigated in considerable detail, and it has been shown that the population consists of several subpopulations that display relatively high levels of genetic variation. However, previous studies have been unable to resolve the degree to which the demographic bottleneck impacted the contemporary genetic structure and diversity. In this study, we used mitochondrial and microsatellite DNA markers from pre- and postbottleneck Scandinavian brown bear samples to investigate the effect of the bottleneck. Simulation and multivariate analysis suggested the same genetic structure for the historical and modern samples, which are clustered into three subpopulations in southern, central and northern Scandinavia. However, the southern subpopulation appears to have gone through a marked change in allele frequencies. When comparing the mitochondrial DNA diversity in the whole population, we found a major decline in haplotype numbers across the bottleneck. However, the loss of autosomal genetic diversity was less pronounced, although a significant decline in allelic richness was observed in the southern subpopulation. Approximate Bayesian computations provided clear support for a decline in effective population size during the bottleneck, in both the southern and northern subpopulations. These results have implications for the future management of the Scandinavian brown bear because they indicate a recent loss in genetic diversity and also that the current genetic structure may have been caused by historical ecological processes rather than recent anthropogenic persecution. BrownBear_historicalsamples_microsatsAlignment_Scandinavian_Brown_Bear_Modern_and_Historical_SamplesSequence alignment including individuals from the historical and modern ... |
format |
Dataset |
author |
Xenikoudakis, Georgios Ersmark, Erik Waits, Lisette Kindberg, Jonas Swenson, Jon E. Dalén, Love Swenson, J. E. Waits, L. Xenikoudakis, G. Ersmark, E. Kindberg, J. |
author_facet |
Xenikoudakis, Georgios Ersmark, Erik Waits, Lisette Kindberg, Jonas Swenson, Jon E. Dalén, Love Swenson, J. E. Waits, L. Xenikoudakis, G. Ersmark, E. Kindberg, J. |
author_sort |
Xenikoudakis, Georgios |
title |
Data from: Consequences of a demographic bottleneck on genetic structure and variation in the Scandinavian brown bear |
title_short |
Data from: Consequences of a demographic bottleneck on genetic structure and variation in the Scandinavian brown bear |
title_full |
Data from: Consequences of a demographic bottleneck on genetic structure and variation in the Scandinavian brown bear |
title_fullStr |
Data from: Consequences of a demographic bottleneck on genetic structure and variation in the Scandinavian brown bear |
title_full_unstemmed |
Data from: Consequences of a demographic bottleneck on genetic structure and variation in the Scandinavian brown bear |
title_sort |
data from: consequences of a demographic bottleneck on genetic structure and variation in the scandinavian brown bear |
publisher |
Dryad |
publishDate |
2015 |
url |
https://doi.org/10.5061/dryad.dn7b8 |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_source |
10.5061/dryad.dn7b8 oai:easy.dans.knaw.nl:easy-dataset:87126 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:87126 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 re3data_____::r3d100000044 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
http://dx.doi.org/10.5061/dryad.dn7b8 https://dx.doi.org/10.5061/dryad.dn7b8 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.dn7b8 |
_version_ |
1766231839728467968 |