Do beluga whales truly migrate? Testing a key trait of the classical migration syndrome
BACKGROUND: Migration enables organisms to access resources in separate regions that have predictable but asynchronous spatiotemporal variability in habitat quality. The classical migration syndrome is defined by key traits including directionally persistent long-distance movements during which main...
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ftpubmed:oai:pubmedcentral.nih.gov:10469428 2023-10-01T03:55:01+02:00 Do beluga whales truly migrate? Testing a key trait of the classical migration syndrome Storrie, Luke Loseto, Lisa L. Sutherland, Emma L. MacPhee, Shannon A. O’Corry-Crowe, Greg Hussey, Nigel E. 2023-08-30 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10469428/ http://www.ncbi.nlm.nih.gov/pubmed/37649126 https://doi.org/10.1186/s40462-023-00416-y en eng BioMed Central http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10469428/ http://www.ncbi.nlm.nih.gov/pubmed/37649126 http://dx.doi.org/10.1186/s40462-023-00416-y © BioMed Central Ltd., part of Springer Nature 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data. Mov Ecol Research Text 2023 ftpubmed https://doi.org/10.1186/s40462-023-00416-y 2023-09-03T01:33:38Z BACKGROUND: Migration enables organisms to access resources in separate regions that have predictable but asynchronous spatiotemporal variability in habitat quality. The classical migration syndrome is defined by key traits including directionally persistent long-distance movements during which maintenance activities are suppressed. But recently, seasonal round-trip movements have frequently been considered to constitute migration irrespective of the traits required to meet this movement type, conflating common outcomes with common traits required for a mechanistic understanding of long-distance movements. We aimed to test whether a cetacean ceases foraging during so-called migratory movements, conforming to a trait that defines classical migration. METHODS: We used location and dive data collected by satellite tags deployed on beluga whales (Delphinapterus leucas) from the Eastern Beaufort Sea population, which undertake long-distance directed movements between summer and winter areas. To identify phases of directionally persistent travel, behavioural states (area-restricted search, ARS; or Transit) were decoded using a hidden-Markov model, based on step length and turning angle. Established dive profiles were then used as a proxy for foraging, to test the hypothesis that belugas cease foraging during these long-distance transiting movements, i.e., they suppress maintenance activities. RESULTS: Belugas principally made directed horizontal movements when moving between summer and winter residency areas, remaining in a Transit state for an average of 75.4% (range = 58.5–87.2%) of the time. All individuals, however, exhibited persistent foraging during Transit movements (75.8% of hours decoded as the Transit state had ≥ 1 foraging dive). These data indicate that belugas actively search for and/or respond to resources during these long-distance movements that are typically called a migration. CONCLUSIONS: The long-distance movements of belugas do not conform to the traits defining the classical migration syndrome, ... Text Beaufort Sea Beluga Beluga* Delphinapterus leucas PubMed Central (PMC) Movement Ecology 11 1 |
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Research Storrie, Luke Loseto, Lisa L. Sutherland, Emma L. MacPhee, Shannon A. O’Corry-Crowe, Greg Hussey, Nigel E. Do beluga whales truly migrate? Testing a key trait of the classical migration syndrome |
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Research |
description |
BACKGROUND: Migration enables organisms to access resources in separate regions that have predictable but asynchronous spatiotemporal variability in habitat quality. The classical migration syndrome is defined by key traits including directionally persistent long-distance movements during which maintenance activities are suppressed. But recently, seasonal round-trip movements have frequently been considered to constitute migration irrespective of the traits required to meet this movement type, conflating common outcomes with common traits required for a mechanistic understanding of long-distance movements. We aimed to test whether a cetacean ceases foraging during so-called migratory movements, conforming to a trait that defines classical migration. METHODS: We used location and dive data collected by satellite tags deployed on beluga whales (Delphinapterus leucas) from the Eastern Beaufort Sea population, which undertake long-distance directed movements between summer and winter areas. To identify phases of directionally persistent travel, behavioural states (area-restricted search, ARS; or Transit) were decoded using a hidden-Markov model, based on step length and turning angle. Established dive profiles were then used as a proxy for foraging, to test the hypothesis that belugas cease foraging during these long-distance transiting movements, i.e., they suppress maintenance activities. RESULTS: Belugas principally made directed horizontal movements when moving between summer and winter residency areas, remaining in a Transit state for an average of 75.4% (range = 58.5–87.2%) of the time. All individuals, however, exhibited persistent foraging during Transit movements (75.8% of hours decoded as the Transit state had ≥ 1 foraging dive). These data indicate that belugas actively search for and/or respond to resources during these long-distance movements that are typically called a migration. CONCLUSIONS: The long-distance movements of belugas do not conform to the traits defining the classical migration syndrome, ... |
format |
Text |
author |
Storrie, Luke Loseto, Lisa L. Sutherland, Emma L. MacPhee, Shannon A. O’Corry-Crowe, Greg Hussey, Nigel E. |
author_facet |
Storrie, Luke Loseto, Lisa L. Sutherland, Emma L. MacPhee, Shannon A. O’Corry-Crowe, Greg Hussey, Nigel E. |
author_sort |
Storrie, Luke |
title |
Do beluga whales truly migrate? Testing a key trait of the classical migration syndrome |
title_short |
Do beluga whales truly migrate? Testing a key trait of the classical migration syndrome |
title_full |
Do beluga whales truly migrate? Testing a key trait of the classical migration syndrome |
title_fullStr |
Do beluga whales truly migrate? Testing a key trait of the classical migration syndrome |
title_full_unstemmed |
Do beluga whales truly migrate? Testing a key trait of the classical migration syndrome |
title_sort |
do beluga whales truly migrate? testing a key trait of the classical migration syndrome |
publisher |
BioMed Central |
publishDate |
2023 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10469428/ http://www.ncbi.nlm.nih.gov/pubmed/37649126 https://doi.org/10.1186/s40462-023-00416-y |
genre |
Beaufort Sea Beluga Beluga* Delphinapterus leucas |
genre_facet |
Beaufort Sea Beluga Beluga* Delphinapterus leucas |
op_source |
Mov Ecol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10469428/ http://www.ncbi.nlm.nih.gov/pubmed/37649126 http://dx.doi.org/10.1186/s40462-023-00416-y |
op_rights |
© BioMed Central Ltd., part of Springer Nature 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
op_doi |
https://doi.org/10.1186/s40462-023-00416-y |
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Movement Ecology |
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11 |
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1 |
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1778523128564023296 |