Aerial survey perspectives on humpback whale resiliency in Maui Nui, Hawaiʻi, in the face of an unprecedented North Pacific marine warming event
After decades of population growth, the central stock of the North Pacific population of humpback whales, known as the Hawaiʻi Distinct Population Segment (HDPS), was delisted from its endangered status in 2016. At that time, however, an unprecedented heating event, the Pacific Marine Heatwave (PMH)...
Published in: | Marine Mammal Science |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2023
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/aerial-survey-perspectives-on-humpback-whale-resiliency-in-maui-nui-hawaii-in-the-face-of-an-unprecedented-north-pacific-marine-warming-event(26b2ea6b-a8bf-4db8-9ec7-c0e128798151).html https://doi.org/10.1111/mms.13018 https://research-repository.st-andrews.ac.uk/bitstream/10023/29534/1/Mobley_2023_Aerial_survey_perspectives_MMS_AAM.pdf |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/26b2ea6b-a8bf-4db8-9ec7-c0e128798151 2024-06-23T07:53:35+00:00 Aerial survey perspectives on humpback whale resiliency in Maui Nui, Hawaiʻi, in the face of an unprecedented North Pacific marine warming event Mobley Jr., Joseph R. Deakos, Mark H. Pack, Adam A. Bortolotto, Guilherme A. 2023-07-01 application/pdf https://research-portal.st-andrews.ac.uk/en/researchoutput/aerial-survey-perspectives-on-humpback-whale-resiliency-in-maui-nui-hawaii-in-the-face-of-an-unprecedented-north-pacific-marine-warming-event(26b2ea6b-a8bf-4db8-9ec7-c0e128798151).html https://doi.org/10.1111/mms.13018 https://research-repository.st-andrews.ac.uk/bitstream/10023/29534/1/Mobley_2023_Aerial_survey_perspectives_MMS_AAM.pdf eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/aerial-survey-perspectives-on-humpback-whale-resiliency-in-maui-nui-hawaii-in-the-face-of-an-unprecedented-north-pacific-marine-warming-event(26b2ea6b-a8bf-4db8-9ec7-c0e128798151).html info:eu-repo/semantics/openAccess Mobley Jr. , J R , Deakos , M H , Pack , A A & Bortolotto , G A 2023 , ' Aerial survey perspectives on humpback whale resiliency in Maui Nui, Hawaiʻi, in the face of an unprecedented North Pacific marine warming event ' , Marine Mammal Science , vol. 19 , no. 3 , pp. 842-857 . https://doi.org/10.1111/mms.13018 Climate change Conservation Density Distance sampling Humpback whales Megaptera novaeangliae Pacific Marine Heatwave (PMH) Resilience article 2023 ftunstandrewcris https://doi.org/10.1111/mms.13018 2024-06-13T01:22:10Z After decades of population growth, the central stock of the North Pacific population of humpback whales, known as the Hawaiʻi Distinct Population Segment (HDPS), was delisted from its endangered status in 2016. At that time, however, an unprecedented heating event, the Pacific Marine Heatwave (PMH) was already underway. The PMH coincided with reports of major declines of sightings of humpback whales, including calves of the year, on both the Hawaiian wintering grounds and the feeding grounds of Southeast Alaska. To examine the resiliency of the HDPS, we conducted aerial surveys of the high-density Maui Nui region immediately following the PMH event in 2019 and 2020, using distance sampling methods identical to those used in an earlier series (1993–2003). Results showed whale densities at or above those seen earlier, with mean density for 2020 highest overall. Crude birth rates (percent groups containing a calf) were similarly comparable to those recorded in the earlier series, with an increase from 2019 to 2020. Overall, results suggest the central North Pacific humpback whale population stock to be resilient in the face of this major climatic event. Article in Journal/Newspaper Humpback Whale Megaptera novaeangliae Alaska University of St Andrews: Research Portal Pacific Marine Mammal Science 39 3 842 857 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Climate change Conservation Density Distance sampling Humpback whales Megaptera novaeangliae Pacific Marine Heatwave (PMH) Resilience |
spellingShingle |
Climate change Conservation Density Distance sampling Humpback whales Megaptera novaeangliae Pacific Marine Heatwave (PMH) Resilience Mobley Jr., Joseph R. Deakos, Mark H. Pack, Adam A. Bortolotto, Guilherme A. Aerial survey perspectives on humpback whale resiliency in Maui Nui, Hawaiʻi, in the face of an unprecedented North Pacific marine warming event |
topic_facet |
Climate change Conservation Density Distance sampling Humpback whales Megaptera novaeangliae Pacific Marine Heatwave (PMH) Resilience |
description |
After decades of population growth, the central stock of the North Pacific population of humpback whales, known as the Hawaiʻi Distinct Population Segment (HDPS), was delisted from its endangered status in 2016. At that time, however, an unprecedented heating event, the Pacific Marine Heatwave (PMH) was already underway. The PMH coincided with reports of major declines of sightings of humpback whales, including calves of the year, on both the Hawaiian wintering grounds and the feeding grounds of Southeast Alaska. To examine the resiliency of the HDPS, we conducted aerial surveys of the high-density Maui Nui region immediately following the PMH event in 2019 and 2020, using distance sampling methods identical to those used in an earlier series (1993–2003). Results showed whale densities at or above those seen earlier, with mean density for 2020 highest overall. Crude birth rates (percent groups containing a calf) were similarly comparable to those recorded in the earlier series, with an increase from 2019 to 2020. Overall, results suggest the central North Pacific humpback whale population stock to be resilient in the face of this major climatic event. |
format |
Article in Journal/Newspaper |
author |
Mobley Jr., Joseph R. Deakos, Mark H. Pack, Adam A. Bortolotto, Guilherme A. |
author_facet |
Mobley Jr., Joseph R. Deakos, Mark H. Pack, Adam A. Bortolotto, Guilherme A. |
author_sort |
Mobley Jr., Joseph R. |
title |
Aerial survey perspectives on humpback whale resiliency in Maui Nui, Hawaiʻi, in the face of an unprecedented North Pacific marine warming event |
title_short |
Aerial survey perspectives on humpback whale resiliency in Maui Nui, Hawaiʻi, in the face of an unprecedented North Pacific marine warming event |
title_full |
Aerial survey perspectives on humpback whale resiliency in Maui Nui, Hawaiʻi, in the face of an unprecedented North Pacific marine warming event |
title_fullStr |
Aerial survey perspectives on humpback whale resiliency in Maui Nui, Hawaiʻi, in the face of an unprecedented North Pacific marine warming event |
title_full_unstemmed |
Aerial survey perspectives on humpback whale resiliency in Maui Nui, Hawaiʻi, in the face of an unprecedented North Pacific marine warming event |
title_sort |
aerial survey perspectives on humpback whale resiliency in maui nui, hawaiʻi, in the face of an unprecedented north pacific marine warming event |
publishDate |
2023 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/aerial-survey-perspectives-on-humpback-whale-resiliency-in-maui-nui-hawaii-in-the-face-of-an-unprecedented-north-pacific-marine-warming-event(26b2ea6b-a8bf-4db8-9ec7-c0e128798151).html https://doi.org/10.1111/mms.13018 https://research-repository.st-andrews.ac.uk/bitstream/10023/29534/1/Mobley_2023_Aerial_survey_perspectives_MMS_AAM.pdf |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Humpback Whale Megaptera novaeangliae Alaska |
genre_facet |
Humpback Whale Megaptera novaeangliae Alaska |
op_source |
Mobley Jr. , J R , Deakos , M H , Pack , A A & Bortolotto , G A 2023 , ' Aerial survey perspectives on humpback whale resiliency in Maui Nui, Hawaiʻi, in the face of an unprecedented North Pacific marine warming event ' , Marine Mammal Science , vol. 19 , no. 3 , pp. 842-857 . https://doi.org/10.1111/mms.13018 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/aerial-survey-perspectives-on-humpback-whale-resiliency-in-maui-nui-hawaii-in-the-face-of-an-unprecedented-north-pacific-marine-warming-event(26b2ea6b-a8bf-4db8-9ec7-c0e128798151).html |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/mms.13018 |
container_title |
Marine Mammal Science |
container_volume |
39 |
container_issue |
3 |
container_start_page |
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op_container_end_page |
857 |
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