Environmental harshness does not affect the propensity for social learning in great tits, Parus major

Abstract According to the harsh environment hypothesis, natural selection should favour cognitive mechanisms to overcome environmental challenges. Tests of this hypothesis to date have largely focused on asocial learning and memory, thus failing to account for the spread of information via social me...

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Main Authors: Emil Isaksson, Julie Morand-Ferron, Alexis Chaine
Format: Article
Language:English
Published: Springer 2024-03-01
Series:Animal Cognition
Subjects:
Online Access:https://doi.org/10.1007/s10071-024-01862-w
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author Emil Isaksson
Julie Morand-Ferron
Alexis Chaine
author_facet Emil Isaksson
Julie Morand-Ferron
Alexis Chaine
author_sort Emil Isaksson
collection DOAJ
description Abstract According to the harsh environment hypothesis, natural selection should favour cognitive mechanisms to overcome environmental challenges. Tests of this hypothesis to date have largely focused on asocial learning and memory, thus failing to account for the spread of information via social means. Tests in specialized food-hoarding birds have shown strong support for the effects of environmental harshness on both asocial and social learning. Whether the hypothesis applies to non-specialist foraging species remains largely unexplored. We evaluated the relative importance of social learning across a known harshness gradient by testing generalist great tits, Parus major, from high (harsh)- and low (mild)-elevation populations in two social learning tasks. We showed that individuals use social learning to find food in both colour-associative and spatial foraging tasks and that individuals differed consistently in their use of social learning. However, we did not detect a difference in the use or speed of implementing socially observed information across the elevational gradient. Our results do not support predictions of the harsh environment hypothesis suggesting that context-dependent costs and benefits as well as plasticity in the use of social information may play an important role in the use of social learning across environments. Finally, this study adds to the accumulating evidence that the harsh environment hypothesis appears to have more pronounced effects on specialists compared to generalist species.
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series Animal Cognition
spelling doaj-art-8881f45ea1b44ce7a6dde1856a69b3242025-01-26T12:44:31ZengSpringerAnimal Cognition1435-94562024-03-0127111610.1007/s10071-024-01862-wEnvironmental harshness does not affect the propensity for social learning in great tits, Parus majorEmil Isaksson0Julie Morand-Ferron1Alexis Chaine2Department of Biology, University of OttawaDepartment of Biology, University of OttawaStation d’Ecologie Théorique et Expérimentale du CNRS UAR2029Abstract According to the harsh environment hypothesis, natural selection should favour cognitive mechanisms to overcome environmental challenges. Tests of this hypothesis to date have largely focused on asocial learning and memory, thus failing to account for the spread of information via social means. Tests in specialized food-hoarding birds have shown strong support for the effects of environmental harshness on both asocial and social learning. Whether the hypothesis applies to non-specialist foraging species remains largely unexplored. We evaluated the relative importance of social learning across a known harshness gradient by testing generalist great tits, Parus major, from high (harsh)- and low (mild)-elevation populations in two social learning tasks. We showed that individuals use social learning to find food in both colour-associative and spatial foraging tasks and that individuals differed consistently in their use of social learning. However, we did not detect a difference in the use or speed of implementing socially observed information across the elevational gradient. Our results do not support predictions of the harsh environment hypothesis suggesting that context-dependent costs and benefits as well as plasticity in the use of social information may play an important role in the use of social learning across environments. Finally, this study adds to the accumulating evidence that the harsh environment hypothesis appears to have more pronounced effects on specialists compared to generalist species.https://doi.org/10.1007/s10071-024-01862-wSocial informationIndividual differencesCognitive ecologyAltitudinal differencesSocial behaviour
spellingShingle Emil Isaksson
Julie Morand-Ferron
Alexis Chaine
Environmental harshness does not affect the propensity for social learning in great tits, Parus major
Animal Cognition
Social information
Individual differences
Cognitive ecology
Altitudinal differences
Social behaviour
title Environmental harshness does not affect the propensity for social learning in great tits, Parus major
title_full Environmental harshness does not affect the propensity for social learning in great tits, Parus major
title_fullStr Environmental harshness does not affect the propensity for social learning in great tits, Parus major
title_full_unstemmed Environmental harshness does not affect the propensity for social learning in great tits, Parus major
title_short Environmental harshness does not affect the propensity for social learning in great tits, Parus major
title_sort environmental harshness does not affect the propensity for social learning in great tits parus major
topic Social information
Individual differences
Cognitive ecology
Altitudinal differences
Social behaviour
url https://doi.org/10.1007/s10071-024-01862-w
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