Data from: Migratory culture, population structure and stock identity in North Pacific beluga whales (Delphinapterus leucas)
The annual return of beluga whales, Delphinapterus leucas, to traditional seasonal locations across the Arctic may involve migratory culture, while the convergence of discrete summering aggregations on common wintering grounds may facilitate outbreeding. Natal philopatry and cultural inheritance, ho...
Main Authors: | , , , , , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
2018
|
Subjects: | |
Online Access: | http://hdl.handle.net/10255/dryad.172512 https://doi.org/10.5061/dryad.6b70g11 |
id |
ftdryad:oai:v1.datadryad.org:10255/dryad.172512 |
---|---|
record_format |
openpolar |
spelling |
ftdryad:oai:v1.datadryad.org:10255/dryad.172512 2023-05-15T15:17:36+02:00 Data from: Migratory culture, population structure and stock identity in North Pacific beluga whales (Delphinapterus leucas) O'Corry-Crowe, Greg Suydam, Robert Quakenbush, Lori Potgieter, Brooke Harwood, Lois Litovka, Dennis Ferrer, Tatiana Citta, John Burkanov, Vladimir Frost, Kathy Mahoney, Barbara Pacific Ocean Bering Sea Chukchi Sea Beaufort Sea Okhotsk Sea Gulf of Alaska 2018-03-26T19:45:03Z http://hdl.handle.net/10255/dryad.172512 https://doi.org/10.5061/dryad.6b70g11 unknown doi:10.5061/dryad.6b70g11/1 doi:10.1371/journal.pone.0194201 doi:10.5061/dryad.6b70g11 O’Corry-Crowe G, Suydam R, Quakenbush L, Potgieter B, Harwood L, Litovka D, Ferrer T, Citta J, Burkanov V, Frost K, Mahoney B (2018) Migratory culture, population structure and stock identity in North Pacific beluga whales (Delphinapterus leucas). PLOS ONE 13(3): e0194201. http://hdl.handle.net/10255/dryad.172512 migratory culture beluga whale philopatry population structure Article 2018 ftdryad https://doi.org/10.5061/dryad.6b70g11 https://doi.org/10.5061/dryad.6b70g11/1 https://doi.org/10.1371/journal.pone.0194201 2020-01-01T16:05:19Z The annual return of beluga whales, Delphinapterus leucas, to traditional seasonal locations across the Arctic may involve migratory culture, while the convergence of discrete summering aggregations on common wintering grounds may facilitate outbreeding. Natal philopatry and cultural inheritance, however, has been difficult to assess as earlier studies were of too short a duration, while genetic analyses of breeding patterns, especially across the beluga's Pacific range, have been hampered by inadequate sampling and sparse information on wintering areas. Using a much expanded sample and genetic marker set comprising 1,647 whales, spanning more than two decades and encompassing all major coastal summering aggregations in the Pacific Ocean, we found evolutionary-level divergence among three geographic regions: the Gulf of Alaska, the Bering-Chukchi-Beaufort Seas, and the Sea of Okhotsk (Φst=0.11-0.32, Rst=0.09-0.13), and likely demographic independence of (Fst-mtDNA=0.02-0.66), and in many cases limited gene flow (Fst-nDNA=0.0-0.02; K=5-6) among, summering groups within regions. Assignment tests identified few immigrants within summering aggregations, linked migrating groups to specific summering areas, and found that some migratory corridors comprise whales from multiple subpopulations (PBAYES=0.31:0.69). Further, dispersal is male-biased and substantial numbers of closely related whales congregate together at coastal summering areas. Stable patterns of heterogeneity between areas and consistently high proportions (~20%) of close kin (including parent-offspring) sampled up to 20 years apart within areas (G=0.2-2.9, p>0.5) is the first direct evidence of natal philopatry to migration destinations in belugas. Using recent satellite telemetry findings on belugas we found that the spatial proximity of winter ranges has a greater influence on the degree of both individual and genetic exchange than summer ranges (rwinter-Fst-mtDNA=0.9, rsummer-Fst-nDNA=0.1). These findings indicate widespread natal philopatry to summering aggregation and entire migratory circuits, and provide compelling evidence that migratory culture and kinship helps maintain demographically discrete beluga stocks that can overlap in time and space. Article in Journal/Newspaper Arctic Beaufort Sea Beluga Beluga whale Beluga* Bering Sea Chukchi Chukchi Sea Delphinapterus leucas okhotsk sea Alaska Dryad Digital Repository (Duke University) Arctic Bering Sea Okhotsk Chukchi Sea Gulf of Alaska Pacific |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
migratory culture beluga whale philopatry population structure |
spellingShingle |
migratory culture beluga whale philopatry population structure O'Corry-Crowe, Greg Suydam, Robert Quakenbush, Lori Potgieter, Brooke Harwood, Lois Litovka, Dennis Ferrer, Tatiana Citta, John Burkanov, Vladimir Frost, Kathy Mahoney, Barbara Data from: Migratory culture, population structure and stock identity in North Pacific beluga whales (Delphinapterus leucas) |
topic_facet |
migratory culture beluga whale philopatry population structure |
description |
The annual return of beluga whales, Delphinapterus leucas, to traditional seasonal locations across the Arctic may involve migratory culture, while the convergence of discrete summering aggregations on common wintering grounds may facilitate outbreeding. Natal philopatry and cultural inheritance, however, has been difficult to assess as earlier studies were of too short a duration, while genetic analyses of breeding patterns, especially across the beluga's Pacific range, have been hampered by inadequate sampling and sparse information on wintering areas. Using a much expanded sample and genetic marker set comprising 1,647 whales, spanning more than two decades and encompassing all major coastal summering aggregations in the Pacific Ocean, we found evolutionary-level divergence among three geographic regions: the Gulf of Alaska, the Bering-Chukchi-Beaufort Seas, and the Sea of Okhotsk (Φst=0.11-0.32, Rst=0.09-0.13), and likely demographic independence of (Fst-mtDNA=0.02-0.66), and in many cases limited gene flow (Fst-nDNA=0.0-0.02; K=5-6) among, summering groups within regions. Assignment tests identified few immigrants within summering aggregations, linked migrating groups to specific summering areas, and found that some migratory corridors comprise whales from multiple subpopulations (PBAYES=0.31:0.69). Further, dispersal is male-biased and substantial numbers of closely related whales congregate together at coastal summering areas. Stable patterns of heterogeneity between areas and consistently high proportions (~20%) of close kin (including parent-offspring) sampled up to 20 years apart within areas (G=0.2-2.9, p>0.5) is the first direct evidence of natal philopatry to migration destinations in belugas. Using recent satellite telemetry findings on belugas we found that the spatial proximity of winter ranges has a greater influence on the degree of both individual and genetic exchange than summer ranges (rwinter-Fst-mtDNA=0.9, rsummer-Fst-nDNA=0.1). These findings indicate widespread natal philopatry to summering aggregation and entire migratory circuits, and provide compelling evidence that migratory culture and kinship helps maintain demographically discrete beluga stocks that can overlap in time and space. |
format |
Article in Journal/Newspaper |
author |
O'Corry-Crowe, Greg Suydam, Robert Quakenbush, Lori Potgieter, Brooke Harwood, Lois Litovka, Dennis Ferrer, Tatiana Citta, John Burkanov, Vladimir Frost, Kathy Mahoney, Barbara |
author_facet |
O'Corry-Crowe, Greg Suydam, Robert Quakenbush, Lori Potgieter, Brooke Harwood, Lois Litovka, Dennis Ferrer, Tatiana Citta, John Burkanov, Vladimir Frost, Kathy Mahoney, Barbara |
author_sort |
O'Corry-Crowe, Greg |
title |
Data from: Migratory culture, population structure and stock identity in North Pacific beluga whales (Delphinapterus leucas) |
title_short |
Data from: Migratory culture, population structure and stock identity in North Pacific beluga whales (Delphinapterus leucas) |
title_full |
Data from: Migratory culture, population structure and stock identity in North Pacific beluga whales (Delphinapterus leucas) |
title_fullStr |
Data from: Migratory culture, population structure and stock identity in North Pacific beluga whales (Delphinapterus leucas) |
title_full_unstemmed |
Data from: Migratory culture, population structure and stock identity in North Pacific beluga whales (Delphinapterus leucas) |
title_sort |
data from: migratory culture, population structure and stock identity in north pacific beluga whales (delphinapterus leucas) |
publishDate |
2018 |
url |
http://hdl.handle.net/10255/dryad.172512 https://doi.org/10.5061/dryad.6b70g11 |
op_coverage |
Pacific Ocean Bering Sea Chukchi Sea Beaufort Sea Okhotsk Sea Gulf of Alaska |
geographic |
Arctic Bering Sea Okhotsk Chukchi Sea Gulf of Alaska Pacific |
geographic_facet |
Arctic Bering Sea Okhotsk Chukchi Sea Gulf of Alaska Pacific |
genre |
Arctic Beaufort Sea Beluga Beluga whale Beluga* Bering Sea Chukchi Chukchi Sea Delphinapterus leucas okhotsk sea Alaska |
genre_facet |
Arctic Beaufort Sea Beluga Beluga whale Beluga* Bering Sea Chukchi Chukchi Sea Delphinapterus leucas okhotsk sea Alaska |
op_relation |
doi:10.5061/dryad.6b70g11/1 doi:10.1371/journal.pone.0194201 doi:10.5061/dryad.6b70g11 O’Corry-Crowe G, Suydam R, Quakenbush L, Potgieter B, Harwood L, Litovka D, Ferrer T, Citta J, Burkanov V, Frost K, Mahoney B (2018) Migratory culture, population structure and stock identity in North Pacific beluga whales (Delphinapterus leucas). PLOS ONE 13(3): e0194201. http://hdl.handle.net/10255/dryad.172512 |
op_doi |
https://doi.org/10.5061/dryad.6b70g11 https://doi.org/10.5061/dryad.6b70g11/1 https://doi.org/10.1371/journal.pone.0194201 |
_version_ |
1766347840989167616 |