Data from: Rewriting the history of an extinction - was a population of Steller's sea cows (Hydrodamalis gigas) at St. Lawrence Island also driven to extinction?
The Kommandorskiye Islands population of Steller's sea cow (Hydrodamalis gigas) was extirpated ca 1768 CE. Until now, Steller's sea cow was thought to be restricted in historic times to Bering and Copper Islands, Russia, with other records in the last millennium from the western Aleutian I...
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ftzenodo:oai:zenodo.org:4995767 2023-05-15T15:36:00+02:00 Data from: Rewriting the history of an extinction - was a population of Steller's sea cows (Hydrodamalis gigas) at St. Lawrence Island also driven to extinction? Crerar, Lorelei D. Crerar, Andrew P. Parsons, E. C. M. Domning, Daryl P. 2014-11-13 https://zenodo.org/record/4995767 https://doi.org/10.5061/dryad.vf86p unknown doi:10.1098/rsbl.2014.0878 https://zenodo.org/communities/dryad https://zenodo.org/record/4995767 https://doi.org/10.5061/dryad.vf86p oai:zenodo.org:4995767 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Steller's sea cows Hydrodamalis gigas 1000CE to 1768CE new population extirpation info:eu-repo/semantics/other dataset 2014 ftzenodo https://doi.org/10.5061/dryad.vf86p10.1098/rsbl.2014.0878 2023-03-10T14:26:48Z The Kommandorskiye Islands population of Steller's sea cow (Hydrodamalis gigas) was extirpated ca 1768 CE. Until now, Steller's sea cow was thought to be restricted in historic times to Bering and Copper Islands, Russia, with other records in the last millennium from the western Aleutian Islands. However, Steller's sea cow bone has been obtained by the authors from St Lawrence Island, Alaska, which is significantly further north. Bone identity was verified using analysis of mitochondrial DNA. The nitrogen-15 (δ15N)/carbon-13 (δ13C) values for bone samples from St Lawrence Island were significantly (p ≤ 0.05) different from Bering Island samples, indicating a second population. Bone samples were dated to between 1030 and 1150 BP (approx. 800–920 CE). The samples date from close to the beginning of the mediaeval warm period, which could indicate that the population at St Lawrence Island was driven to extinction by climate change. A warming of the climate in the area may have changed the availability of kelp; alternatively or in addition, the animals may have been driven to extinction by the expansion of the Inuit from the Bering Strait region, possibly due to opening waterways, maybe following bowhead whales (Balaena mysticetus), or searching for iron and copper. This study provides evidence for a previously unknown population of sea cows in the North Pacific within the past 1000 years and a second Steller's sea cow extirpation event in recent history. Steller's Sea Cow Cytochrome b SequencesThis document is a FASTA format file that contains partial sequences for five Steller's sea cow (Hydrodamalis gigas) bones from St. Lawrence Island, AK, USA.Bankit Sequences.txt Dataset Balaena mysticetus Bering Island Bering Strait Hydrodamalis gigas inuit St Lawrence Island Steller's sea cow Alaska Aleutian Islands Zenodo Bering Strait Pacific Lawrence Island ENVELOPE(-103.718,-103.718,56.967,56.967) |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
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unknown |
topic |
Steller's sea cows Hydrodamalis gigas 1000CE to 1768CE new population extirpation |
spellingShingle |
Steller's sea cows Hydrodamalis gigas 1000CE to 1768CE new population extirpation Crerar, Lorelei D. Crerar, Andrew P. Parsons, E. C. M. Domning, Daryl P. Data from: Rewriting the history of an extinction - was a population of Steller's sea cows (Hydrodamalis gigas) at St. Lawrence Island also driven to extinction? |
topic_facet |
Steller's sea cows Hydrodamalis gigas 1000CE to 1768CE new population extirpation |
description |
The Kommandorskiye Islands population of Steller's sea cow (Hydrodamalis gigas) was extirpated ca 1768 CE. Until now, Steller's sea cow was thought to be restricted in historic times to Bering and Copper Islands, Russia, with other records in the last millennium from the western Aleutian Islands. However, Steller's sea cow bone has been obtained by the authors from St Lawrence Island, Alaska, which is significantly further north. Bone identity was verified using analysis of mitochondrial DNA. The nitrogen-15 (δ15N)/carbon-13 (δ13C) values for bone samples from St Lawrence Island were significantly (p ≤ 0.05) different from Bering Island samples, indicating a second population. Bone samples were dated to between 1030 and 1150 BP (approx. 800–920 CE). The samples date from close to the beginning of the mediaeval warm period, which could indicate that the population at St Lawrence Island was driven to extinction by climate change. A warming of the climate in the area may have changed the availability of kelp; alternatively or in addition, the animals may have been driven to extinction by the expansion of the Inuit from the Bering Strait region, possibly due to opening waterways, maybe following bowhead whales (Balaena mysticetus), or searching for iron and copper. This study provides evidence for a previously unknown population of sea cows in the North Pacific within the past 1000 years and a second Steller's sea cow extirpation event in recent history. Steller's Sea Cow Cytochrome b SequencesThis document is a FASTA format file that contains partial sequences for five Steller's sea cow (Hydrodamalis gigas) bones from St. Lawrence Island, AK, USA.Bankit Sequences.txt |
format |
Dataset |
author |
Crerar, Lorelei D. Crerar, Andrew P. Parsons, E. C. M. Domning, Daryl P. |
author_facet |
Crerar, Lorelei D. Crerar, Andrew P. Parsons, E. C. M. Domning, Daryl P. |
author_sort |
Crerar, Lorelei D. |
title |
Data from: Rewriting the history of an extinction - was a population of Steller's sea cows (Hydrodamalis gigas) at St. Lawrence Island also driven to extinction? |
title_short |
Data from: Rewriting the history of an extinction - was a population of Steller's sea cows (Hydrodamalis gigas) at St. Lawrence Island also driven to extinction? |
title_full |
Data from: Rewriting the history of an extinction - was a population of Steller's sea cows (Hydrodamalis gigas) at St. Lawrence Island also driven to extinction? |
title_fullStr |
Data from: Rewriting the history of an extinction - was a population of Steller's sea cows (Hydrodamalis gigas) at St. Lawrence Island also driven to extinction? |
title_full_unstemmed |
Data from: Rewriting the history of an extinction - was a population of Steller's sea cows (Hydrodamalis gigas) at St. Lawrence Island also driven to extinction? |
title_sort |
data from: rewriting the history of an extinction - was a population of steller's sea cows (hydrodamalis gigas) at st. lawrence island also driven to extinction? |
publishDate |
2014 |
url |
https://zenodo.org/record/4995767 https://doi.org/10.5061/dryad.vf86p |
long_lat |
ENVELOPE(-103.718,-103.718,56.967,56.967) |
geographic |
Bering Strait Pacific Lawrence Island |
geographic_facet |
Bering Strait Pacific Lawrence Island |
genre |
Balaena mysticetus Bering Island Bering Strait Hydrodamalis gigas inuit St Lawrence Island Steller's sea cow Alaska Aleutian Islands |
genre_facet |
Balaena mysticetus Bering Island Bering Strait Hydrodamalis gigas inuit St Lawrence Island Steller's sea cow Alaska Aleutian Islands |
op_relation |
doi:10.1098/rsbl.2014.0878 https://zenodo.org/communities/dryad https://zenodo.org/record/4995767 https://doi.org/10.5061/dryad.vf86p oai:zenodo.org:4995767 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.vf86p10.1098/rsbl.2014.0878 |
_version_ |
1766366346200743936 |