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- W4322622986 abstract "In social animals, group composition can cause variations in individual needs that can influence responses to habitat trade-offs, such as predator exposure or foraging opportunities. The Eastern Beaufort Sea beluga whales ( Delphinapterus leucas (Pallas, 1776)) form different group types and cover multiple habitat types in summer. This study compares the habitat preference of three beluga social group types: (1) individual belugas, (2) groups of adults, and (3) groups with at least one calf. Observations were collected during aerial surveys in July and August 2019. For each month, beluga distribution was analyzed with hierarchical generalized additive models, as a function of group type and four covariates: sea surface temperature, bathymetry, slope, and distance to the coastline. Group type, water temperature, and bathymetric features best explained beluga distribution. In July, groups of adults preferred the continental shelf, whereas individual belugas and groups with calves preferred the continental slope. In August, groups of adults and groups with calves were found in Amundsen Gulf at similar depths. For both months, individual belugas associated more with deeper and colder areas. The preferences often corresponded to previously published distributions of the beluga's main prey species, suggesting that foraging opportunities and size-related energy requirements strongly influence habitat use." @default.
- W4322622986 created "2023-03-01" @default.
- W4322622986 creator A5005294914 @default.
- W4322622986 creator A5005583146 @default.
- W4322622986 creator A5052639621 @default.
- W4322622986 creator A5058253545 @default.
- W4322622986 creator A5063809741 @default.
- W4322622986 creator A5091278698 @default.
- W4322622986 date "2023-02-28" @default.
- W4322622986 modified "2023-10-18" @default.
- W4322622986 title "Summer distribution and habitat preference of beluga whale social groups in the Eastern Beaufort Sea" @default.
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