Artificial selection for schooling behaviour and its effects on associative learning abilitiesShow others and affiliations
Number of Authors: 72020 (English)In: Journal of Experimental Biology, ISSN 0022-0949, E-ISSN 1477-9145, Vol. 223, no 23, article id jeb235093Article in journal (Refereed) Published
Abstract [en]
The evolution of collective behaviour has been proposed to have important effects on individual cognitive abilities. Yet, in what way they are related remains enigmatic. In this context, the ‘distributed cognition’ hypothesis suggests that reliance on other group members relaxes selection for individual cognitive abilities. Here, we tested how cognitive processes respond to evolutionary changes in collective motion using replicate lines of guppies (Poecilia reticulata) artificially selected for the degree of schooling behaviour (group polarization) with >15% difference in schooling propensity. We assessed associative learning in females of these selection lines in a series of cognitive assays: colour associative learning, reversal learning, social associative learning, and individual and collective spatial associative learning. We found that control females were faster than polarization-selected females at fulfilling a learning criterion only in the colour associative learning assay, but they were also less likely to reach a learning criterion in the individual spatial associative learning assay. Hence, although testing several cognitive domains, we found weak support for the distributed cognition hypothesis. We propose that any cognitive implications of selection for collective behaviour lie outside of the cognitive abilities included in food-motivated associative learning for visual and spatial cues.
Place, publisher, year, edition, pages
2020. Vol. 223, no 23, article id jeb235093
Keywords [en]
Cognition, Social behaviour, Collective motion, Poeciliidae
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:su:diva-190321DOI: 10.1242/jeb.235093ISI: 000599460900022PubMedID: 33139392OAI: oai:DiVA.org:su-190321DiVA, id: diva2:1538121
2021-03-182021-03-182022-02-25Bibliographically approved