Environmental drivers of beluga whale distribution in a changing climate: a case study of summering aggregations in the Mackenzie Estuary and Tarium Niryutait Marine Protected Area
During summer, the Eastern Beaufort Sea beluga whale ( Delphinapterus leucas (Pallas, 1776)) population aggregates in the waters of the Mackenzie Estuary and Tarium Niryutait Marine Protected Area (TNMPA). Guided by local communities’ priorities, this study aimed to better understand beluga summer h...
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Canadian Science Publishing
2022
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Online Access: | http://dx.doi.org/10.1139/as-2022-0003 https://cdnsciencepub.com/doi/full-xml/10.1139/as-2022-0003 https://cdnsciencepub.com/doi/pdf/10.1139/as-2022-0003 |
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crcansciencepubl:10.1139/as-2022-0003 2023-12-17T10:22:42+01:00 Environmental drivers of beluga whale distribution in a changing climate: a case study of summering aggregations in the Mackenzie Estuary and Tarium Niryutait Marine Protected Area Noel, Aurélie Iacozza, John Devred, Emmanuel Marcoux, Marianne Hornby, Claire Loseto, Lisa L. 2022 http://dx.doi.org/10.1139/as-2022-0003 https://cdnsciencepub.com/doi/full-xml/10.1139/as-2022-0003 https://cdnsciencepub.com/doi/pdf/10.1139/as-2022-0003 en eng Canadian Science Publishing https://creativecommons.org/licenses/by/4.0/deed.en_GB Arctic Science ISSN 2368-7460 General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science journal-article 2022 crcansciencepubl https://doi.org/10.1139/as-2022-0003 2023-11-19T13:39:34Z During summer, the Eastern Beaufort Sea beluga whale ( Delphinapterus leucas (Pallas, 1776)) population aggregates in the waters of the Mackenzie Estuary and Tarium Niryutait Marine Protected Area (TNMPA). Guided by local communities’ priorities, this study aimed to better understand beluga summer habitat selection and to examine whether shifts in beluga distribution are expected under a changing climate. We used a resource selection function (RSF) based on aerial survey data and satellite remote sensing images to estimate the likelihood of beluga presence as a function of environmental conditions. The RSF revealed that belugas selected warm and turbid waters, with suspended particulate matter concentrations and sea surface temperatures ranging above average estuarine values. These specific conditions support hypotheses on the ecological roles of estuaries for belugas such as providing a thermal advantage for their calves or for beluga epidermal moulting. Using a diachronic analysis, we found a distribution shift towards coastal and inshore waters, areas already experiencing effects of climate change. Thus, the current distribution may reflect beluga responses to a changing climate, selecting warmer and more turbid areas. Our finding provides insight into current and evolving beluga habitat and habitat selection under a changing climate, which may help inform beluga management in the TNMPA. Article in Journal/Newspaper Arctic Beaufort Sea Beluga Beluga whale Beluga* Delphinapterus leucas Canadian Science Publishing (via Crossref) Arctic Science |
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Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science |
spellingShingle |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science Noel, Aurélie Iacozza, John Devred, Emmanuel Marcoux, Marianne Hornby, Claire Loseto, Lisa L. Environmental drivers of beluga whale distribution in a changing climate: a case study of summering aggregations in the Mackenzie Estuary and Tarium Niryutait Marine Protected Area |
topic_facet |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science |
description |
During summer, the Eastern Beaufort Sea beluga whale ( Delphinapterus leucas (Pallas, 1776)) population aggregates in the waters of the Mackenzie Estuary and Tarium Niryutait Marine Protected Area (TNMPA). Guided by local communities’ priorities, this study aimed to better understand beluga summer habitat selection and to examine whether shifts in beluga distribution are expected under a changing climate. We used a resource selection function (RSF) based on aerial survey data and satellite remote sensing images to estimate the likelihood of beluga presence as a function of environmental conditions. The RSF revealed that belugas selected warm and turbid waters, with suspended particulate matter concentrations and sea surface temperatures ranging above average estuarine values. These specific conditions support hypotheses on the ecological roles of estuaries for belugas such as providing a thermal advantage for their calves or for beluga epidermal moulting. Using a diachronic analysis, we found a distribution shift towards coastal and inshore waters, areas already experiencing effects of climate change. Thus, the current distribution may reflect beluga responses to a changing climate, selecting warmer and more turbid areas. Our finding provides insight into current and evolving beluga habitat and habitat selection under a changing climate, which may help inform beluga management in the TNMPA. |
format |
Article in Journal/Newspaper |
author |
Noel, Aurélie Iacozza, John Devred, Emmanuel Marcoux, Marianne Hornby, Claire Loseto, Lisa L. |
author_facet |
Noel, Aurélie Iacozza, John Devred, Emmanuel Marcoux, Marianne Hornby, Claire Loseto, Lisa L. |
author_sort |
Noel, Aurélie |
title |
Environmental drivers of beluga whale distribution in a changing climate: a case study of summering aggregations in the Mackenzie Estuary and Tarium Niryutait Marine Protected Area |
title_short |
Environmental drivers of beluga whale distribution in a changing climate: a case study of summering aggregations in the Mackenzie Estuary and Tarium Niryutait Marine Protected Area |
title_full |
Environmental drivers of beluga whale distribution in a changing climate: a case study of summering aggregations in the Mackenzie Estuary and Tarium Niryutait Marine Protected Area |
title_fullStr |
Environmental drivers of beluga whale distribution in a changing climate: a case study of summering aggregations in the Mackenzie Estuary and Tarium Niryutait Marine Protected Area |
title_full_unstemmed |
Environmental drivers of beluga whale distribution in a changing climate: a case study of summering aggregations in the Mackenzie Estuary and Tarium Niryutait Marine Protected Area |
title_sort |
environmental drivers of beluga whale distribution in a changing climate: a case study of summering aggregations in the mackenzie estuary and tarium niryutait marine protected area |
publisher |
Canadian Science Publishing |
publishDate |
2022 |
url |
http://dx.doi.org/10.1139/as-2022-0003 https://cdnsciencepub.com/doi/full-xml/10.1139/as-2022-0003 https://cdnsciencepub.com/doi/pdf/10.1139/as-2022-0003 |
genre |
Arctic Beaufort Sea Beluga Beluga whale Beluga* Delphinapterus leucas |
genre_facet |
Arctic Beaufort Sea Beluga Beluga whale Beluga* Delphinapterus leucas |
op_source |
Arctic Science ISSN 2368-7460 |
op_rights |
https://creativecommons.org/licenses/by/4.0/deed.en_GB |
op_doi |
https://doi.org/10.1139/as-2022-0003 |
container_title |
Arctic Science |
_version_ |
1785551442102190080 |