This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: https://doi.org/10.1098/rsbl.2022.0030. This is version 3 of this Preprint.
This Preprint has no visible version.Download Preprint
Animals on islands typically depart from their mainland relatives in assorted aspects of their biology. Because they seem to occur in concert, and to some extent evolve convergently in disparate taxa, these changes are referred to as the “island syndrome”. While morphological, physiological, and life history components of the island syndrome have received considerable attention, much less is known about how insularity affects behaviour. In this paper, we argue why changes in personality traits and cognitive abilities can be expected to form part of the island syndrome. We provide an overview of studies that have compared personality traits and cognitive abilities between island and mainland populations, or among islands. Overall, the pickings are remarkably slim. There is evidence that animals on islands tend to be bolder than on the mainland, but effects on other personality traits go either way. The evidence for effects of insularity on cognitive abilities or style is highly circumstantial and very mixed. Finally, we consider the ecological drivers that may induce such changes, and the mechanisms through which they might occur. We conclude that our knowledge of the behavioural and cognitive responses to island environments remains limited, and we encourage behavioural biologists to make more use of these “natural laboratories for evolution”.
Behavior and Ethology, Ecology and Evolutionary Biology, Evolution, Life Sciences
animal behaviour, behavioural syndrome, cognition, island evolution, Personality
Published: 2022-01-28 23:26
Last Updated: 2022-04-19 05:13
You must log in to post a comment.