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Context-dependent l...
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Friedlaender, Ari S.
(author)
Context-dependent lateralized feeding strategies in blue whales
- Article/chapterEnglish2017
Publisher, publication year, extent ...
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Elsevier BV,2017
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:su-149983
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-149983URI
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https://doi.org/10.1016/j.cub.2017.10.023DOI
Supplementary language notes
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Language:English
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Summary in:English
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Classification
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Subject category:vet swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Lateralized behaviors benefit individuals by increasing task efficiency in foraging and anti-predator behaviors [1–4]. The conventional lateralization paradigm suggests individuals are left or right lateralized, although the direction of this laterality can vary for different tasks (e.g. foraging or predator inspection/avoidance). By fitting tri-axial movement sensors to blue whales (Balaenoptera musculus), and by recording the direction and size of their rolls during lunge feeding events, we show how these animals differ from such a paradigm. The strength and direction of individuals’ lateralization were related to where and how the whales were feeding in the water column. Smaller rolls (≤180°) predominantly occurred at depth (>70 m), with whales being more likely to rotate clockwise around their longest axis (right lateralized). Larger rolls (>180°), conversely, occurred more often at shallower depths (<70 m) and were more likely to be performed anti-clockwise (left lateralized). More acrobatic rolls are typically used to target small, less dense krill patches near the water’s surface [5,6], and we posit that the specialization of lateralized feeding strategies may enhance foraging efficiency in environments with heterogeneous prey distributions.
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Added entries (persons, corporate bodies, meetings, titles ...)
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Herbert-Read, James E.Stockholms universitet,Zoologiska institutionen(Swepub:su)jherb
(author)
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Hazen, Elliott L.
(author)
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Cade, David E.
(author)
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Calambokidis, John
(author)
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Southall, Brandon L.
(author)
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Stimpert, Alison K.
(author)
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Goldbogen, Jeremy A.
(author)
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Stockholms universitetZoologiska institutionen
(creator_code:org_t)
Related titles
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In:Current Biology: Elsevier BV27:22, s. R1206-R12080960-98221879-0445
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