DataSheet_1_Utilizing long-term opportunistic sightings records to document spatio-temporal shifts in mysticete presence and use in the Central Salish Sea.pdf
The Salish Sea supports several baleen whale species, including humpback (Megaptera novaeangliae), gray (Eschrichtius robustus) and minke whales (Balaenoptera acutorostrata). With the exception of minke whales, these species were decimated by commercial whaling in the 1900s. Because recovery of thes...
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ftfrontimediafig:oai:figshare.com:article/25894573 2024-09-15T17:57:14+00:00 DataSheet_1_Utilizing long-term opportunistic sightings records to document spatio-temporal shifts in mysticete presence and use in the Central Salish Sea.pdf J. K. Olson S. E. Larson F. C. Robertson H. Miller A. Morrigan S. Berta J. Calambokidis 2024-05-24T04:26:52Z https://doi.org/10.3389/fcosc.2024.1401838.s001 https://figshare.com/articles/dataset/DataSheet_1_Utilizing_long-term_opportunistic_sightings_records_to_document_spatio-temporal_shifts_in_mysticete_presence_and_use_in_the_Central_Salish_Sea_pdf/25894573 unknown doi:10.3389/fcosc.2024.1401838.s001 https://figshare.com/articles/dataset/DataSheet_1_Utilizing_long-term_opportunistic_sightings_records_to_document_spatio-temporal_shifts_in_mysticete_presence_and_use_in_the_Central_Salish_Sea_pdf/25894573 CC BY 4.0 Conservation and Biodiversity Biological Adaptation Speciation and Extinction Animal Behaviour Global Change Biology Salish Sea citizen science baleen whales population recovery sightings Dataset 2024 ftfrontimediafig https://doi.org/10.3389/fcosc.2024.1401838.s001 2024-08-19T06:19:45Z The Salish Sea supports several baleen whale species, including humpback (Megaptera novaeangliae), gray (Eschrichtius robustus) and minke whales (Balaenoptera acutorostrata). With the exception of minke whales, these species were decimated by commercial whaling in the 1900s. Because recovery of these populations is monitored on broad spatial scales determined by stocks or populations, their use of the Salish Sea ecosystem is not well documented or understood. We collated 17,436 opportunistic sighting reports to assess patterns in mysticete presence and distribution in the Salish Sea (1976–2019). We used the proportion of sightings for each species and spatial models targeting comparisons between species to limit the influence of spatio-temporal variation in reporting efforts. Humpback whale sightings have increased dramatically since the late 2000s, mirroring population-wide increases and suggesting a renewed use of historically important feeding areas. Gray whale sightings increased most notably at two distinct times (1989, 2017), both of which align with periods of high mortality experienced by the delisted Eastern North Pacific stock of gray whales and may reflect individuals straying from their migration routes. Sightings of minke whales remained relatively stable over this study period and were likely driven by a group of 30–40 individuals that forage off shallow banks and bathymetrically complex habitats around the San Juan Archipelago. Though it can be difficult to separate the bias that accompanies public sightings databases, citizen science efforts are invaluable for monitoring the recovery of rebounding populations and can illuminate longitudinal patterns that would otherwise go unnoticed. Dataset Balaenoptera acutorostrata baleen whale baleen whales Humpback Whale Megaptera novaeangliae Frontiers: Figshare |
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Frontiers: Figshare |
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topic |
Conservation and Biodiversity Biological Adaptation Speciation and Extinction Animal Behaviour Global Change Biology Salish Sea citizen science baleen whales population recovery sightings |
spellingShingle |
Conservation and Biodiversity Biological Adaptation Speciation and Extinction Animal Behaviour Global Change Biology Salish Sea citizen science baleen whales population recovery sightings J. K. Olson S. E. Larson F. C. Robertson H. Miller A. Morrigan S. Berta J. Calambokidis DataSheet_1_Utilizing long-term opportunistic sightings records to document spatio-temporal shifts in mysticete presence and use in the Central Salish Sea.pdf |
topic_facet |
Conservation and Biodiversity Biological Adaptation Speciation and Extinction Animal Behaviour Global Change Biology Salish Sea citizen science baleen whales population recovery sightings |
description |
The Salish Sea supports several baleen whale species, including humpback (Megaptera novaeangliae), gray (Eschrichtius robustus) and minke whales (Balaenoptera acutorostrata). With the exception of minke whales, these species were decimated by commercial whaling in the 1900s. Because recovery of these populations is monitored on broad spatial scales determined by stocks or populations, their use of the Salish Sea ecosystem is not well documented or understood. We collated 17,436 opportunistic sighting reports to assess patterns in mysticete presence and distribution in the Salish Sea (1976–2019). We used the proportion of sightings for each species and spatial models targeting comparisons between species to limit the influence of spatio-temporal variation in reporting efforts. Humpback whale sightings have increased dramatically since the late 2000s, mirroring population-wide increases and suggesting a renewed use of historically important feeding areas. Gray whale sightings increased most notably at two distinct times (1989, 2017), both of which align with periods of high mortality experienced by the delisted Eastern North Pacific stock of gray whales and may reflect individuals straying from their migration routes. Sightings of minke whales remained relatively stable over this study period and were likely driven by a group of 30–40 individuals that forage off shallow banks and bathymetrically complex habitats around the San Juan Archipelago. Though it can be difficult to separate the bias that accompanies public sightings databases, citizen science efforts are invaluable for monitoring the recovery of rebounding populations and can illuminate longitudinal patterns that would otherwise go unnoticed. |
format |
Dataset |
author |
J. K. Olson S. E. Larson F. C. Robertson H. Miller A. Morrigan S. Berta J. Calambokidis |
author_facet |
J. K. Olson S. E. Larson F. C. Robertson H. Miller A. Morrigan S. Berta J. Calambokidis |
author_sort |
J. K. Olson |
title |
DataSheet_1_Utilizing long-term opportunistic sightings records to document spatio-temporal shifts in mysticete presence and use in the Central Salish Sea.pdf |
title_short |
DataSheet_1_Utilizing long-term opportunistic sightings records to document spatio-temporal shifts in mysticete presence and use in the Central Salish Sea.pdf |
title_full |
DataSheet_1_Utilizing long-term opportunistic sightings records to document spatio-temporal shifts in mysticete presence and use in the Central Salish Sea.pdf |
title_fullStr |
DataSheet_1_Utilizing long-term opportunistic sightings records to document spatio-temporal shifts in mysticete presence and use in the Central Salish Sea.pdf |
title_full_unstemmed |
DataSheet_1_Utilizing long-term opportunistic sightings records to document spatio-temporal shifts in mysticete presence and use in the Central Salish Sea.pdf |
title_sort |
datasheet_1_utilizing long-term opportunistic sightings records to document spatio-temporal shifts in mysticete presence and use in the central salish sea.pdf |
publishDate |
2024 |
url |
https://doi.org/10.3389/fcosc.2024.1401838.s001 https://figshare.com/articles/dataset/DataSheet_1_Utilizing_long-term_opportunistic_sightings_records_to_document_spatio-temporal_shifts_in_mysticete_presence_and_use_in_the_Central_Salish_Sea_pdf/25894573 |
genre |
Balaenoptera acutorostrata baleen whale baleen whales Humpback Whale Megaptera novaeangliae |
genre_facet |
Balaenoptera acutorostrata baleen whale baleen whales Humpback Whale Megaptera novaeangliae |
op_relation |
doi:10.3389/fcosc.2024.1401838.s001 https://figshare.com/articles/dataset/DataSheet_1_Utilizing_long-term_opportunistic_sightings_records_to_document_spatio-temporal_shifts_in_mysticete_presence_and_use_in_the_Central_Salish_Sea_pdf/25894573 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.3389/fcosc.2024.1401838.s001 |
_version_ |
1810433399198842880 |