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Familiarity-biased patterns of association shift with time among European minnows

Griffiths, Sian Wyn, Ojanguren, A. F., Orpwood, James Edward, Magurran, A. E. and Armstrong, J. D. 2007. Familiarity-biased patterns of association shift with time among European minnows. Journal of Fish Biology 71 (6) , pp. 1602-1612. 10.1111/j.1095-8649.2007.01626.x

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Abstract

Replicated, naturalistic mesocosms were used to investigate whether pre-existing preferences for familiar individuals decay when opportunities to form new alliances arise. In each trial, two groups of wild European minnows Phoxinus phoxinus were introduced to a common environment, and their association patterns monitored continuously over a 3 week period using passive integrated transponder (PIT) tags. Individuals within a group were familiar, but had no previous experience of the other group. European minnows associated initially with previously familiar individuals more frequently than expected by chance. This preference then diminished over a period of 2 weeks following their encounter with the unfamiliar group of fish and was not detectable by the third week. Instead, new association patterns resulting from non-random re-assortment of individuals over time were evident. The results show that new alliances between individuals form when wild shoals coalesce.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Subjects: Q Science > Q Science (General)
Uncontrolled Keywords: Group living; individual recognition; passive integrated transponder; Phoxinus phoxinus; semi-natural; shoaling behaviour.
Publisher: Wiley
ISSN: 0022-1112
Last Modified: 31 Jan 2020 06:40
URI: http://orca.cardiff.ac.uk/id/eprint/62616

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