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Journal Article
Bold perch live life in the fast lane.
Journal of Animal Ecology 2017 March
A schematic summary showing the links between behaviour and life-history observed by Nakayama, Rapp & Arlinghaus in wild Eurasion perch (Perca fluviatilis). [Colour figure can be viewed at wileyonlinelibrary.com]. In Focus: Nakayama, S., Rapp, T. & Arlinghaus, R. (2017) Fast-slow life history is correlated with individual differences in movements and prey selection in an aquatic predator in the wild. Journal of Animal Ecology, 86, 192-201. The pace-of-life syndrome hypothesis (POLS) suggests that individual behavioural variation co-evolves with life-history variation, causing individuals on a fast life-history trajectory to display more active or bold personalities than individuals following a slow trajectory. In the present study, Nakayama, Rapp & Arlinghaus () followed the detailed movement patterns of wild Eurasian perch using acoustic telemetry and studied their relationships with life-history traits inferred from scale samples. Consistent with POLS, individuals with greater reproductive effort changed more often between active and passive behavioural modes. Moreover, individuals growing fast as a juvenile stayed active longer and moved over greater distances when adult. This study shows compelling evidence for covariance between personality and pace-of-life in a natural population.
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