Scale-dependent to scale-free: daily behavioural switching and optimized searching in a marine predator

Humphries, NE; Schaefer, KM; Fuller, DW; Phillips, GEM; Wilding, C; Sims, DW. 2016 Scale-dependent to scale-free: daily behavioural switching and optimized searching in a marine predator. Animal Behaviour, 113. 189-201. 10.1016/j.anbehav.2015.12.029

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Official URL: http://dx.doi.org/10.1016/j.anbehav.2015.12.029

Abstract/Summary

Highlights • We study diel behavioural differences in activity patterns in bigeye tuna. • Daytime activity patterns showed scale free movements consistent with searching. • Night-time activity showed simpler movements indicative of rich patch exploitation. • The results confirm predictions of the Lévy foraging hypothesis.

Item Type: Publication - Article
Additional Keywords: anomalous diffusion; Lévy flights; optimal foraging; rhythmic behaviour; search patterns; telemetry
Divisions: Marine Biological Association of the UK > Ecosystems and Environmental Change > Movement ecology, behaviour and population structure
Depositing User: Nick Humphries
Date made live: 13 Sep 2016 10:59
Last Modified: 06 Jun 2017 16:16
URI: http://plymsea.ac.uk/id/eprint/7156

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