Behavioural lateralization in a detour test is not repeatable in fishes

Dominique G. Roche; Mirjam Amcoff; Rachael Morgan; Josefin Sundin; Anna H. Andreassen; Mette H. Finnøen; Michael J. Lawrence; Eleanor Henderson; Tommy Norin; Ben Speers-Roesch; Culum Brown; Timothy D. Clark; Redouan Bshary; Brian Leung; Fredrik Jutfelt; Sandra A. Binning

doi:10.1016/j.anbehav.2020.06.025

Behavioural lateralization in a detour test is not repeatable in fishes

Dominique G. Roche^*, Mirjam Amcoff, Rachael Morgan, Josefin Sundin, Anna H. Andreassen, Mette H. Finnøen, Michael J. Lawrence, Eleanor Henderson, Tommy Norin, Ben Speers-Roesch, Culum Brown, Timothy D. Clark, Redouan Bshary, Brian Leung, Fredrik Jutfelt, Sandra A. Binning

^*Corresponding author for this work

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Abstract

Behavioural lateralization, the asymmetric expression of cognitive functions, is reported to enhance key fitness-relevant traits such as group coordination, multitasking and predator escape. Therefore, studies reporting negative effects on lateralization in fish due to environmental stressors such as ocean acidification, hypoxia and pollutants are worrisome. However, such studies tend to use a detour test and focus on population level measures, without validating whether lateralization is consistent within individuals across time. We conducted a multispecies, international assessment of the repeatability (R) of lateralization in four previously studied fish species using a detour test (T-maze), a common method for testing lateralization. We also reanalysed a published data set on a fifth species using new statistical methods. We expected the three shoaling species to exhibit greater within-individual consistency in lateralization than their nonshoaling counterparts given previous reports of stronger lateralization in group-living fishes. Absolute and relative lateralization scores were highly nonrepeatable in all five species (0.01

Original language	English
Journal	Animal Behaviour
Volume	167
Pages (from-to)	55-64
Number of pages	10
ISSN	0003-3472
DOIs	https://doi.org/10.1016/j.anbehav.2020.06.025
Publication status	Published - 2020

Keywords

Behavioural plasticity
Laterality
Lateralization
Repeatability
T-maze

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Roche, D. G., Amcoff, M., Morgan, R., Sundin, J., Andreassen, A. H., Finnøen, M. H., Lawrence, M. J., Henderson, E., Norin, T., Speers-Roesch, B., Brown, C., Clark, T. D., Bshary, R., Leung, B., Jutfelt, F., & Binning, S. A. (2020). Behavioural lateralization in a detour test is not repeatable in fishes. Animal Behaviour, 167, 55-64. https://doi.org/10.1016/j.anbehav.2020.06.025

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abstract = "Behavioural lateralization, the asymmetric expression of cognitive functions, is reported to enhance key fitness-relevant traits such as group coordination, multitasking and predator escape. Therefore, studies reporting negative effects on lateralization in fish due to environmental stressors such as ocean acidification, hypoxia and pollutants are worrisome. However, such studies tend to use a detour test and focus on population level measures, without validating whether lateralization is consistent within individuals across time. We conducted a multispecies, international assessment of the repeatability (R) of lateralization in four previously studied fish species using a detour test (T-maze), a common method for testing lateralization. We also reanalysed a published data set on a fifth species using new statistical methods. We expected the three shoaling species to exhibit greater within-individual consistency in lateralization than their nonshoaling counterparts given previous reports of stronger lateralization in group-living fishes. Absolute and relative lateralization scores were highly nonrepeatable in all five species (0.01",

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doi = "10.1016/j.anbehav.2020.06.025",

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AU - Roche, Dominique G.

AU - Amcoff, Mirjam

AU - Morgan, Rachael

AU - Sundin, Josefin

AU - Andreassen, Anna H.

AU - Finnøen, Mette H.

AU - Lawrence, Michael J.

AU - Henderson, Eleanor

AU - Norin, Tommy

AU - Speers-Roesch, Ben

AU - Brown, Culum

AU - Clark, Timothy D.

AU - Bshary, Redouan

AU - Leung, Brian

AU - Jutfelt, Fredrik

AU - Binning, Sandra A.

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AB - Behavioural lateralization, the asymmetric expression of cognitive functions, is reported to enhance key fitness-relevant traits such as group coordination, multitasking and predator escape. Therefore, studies reporting negative effects on lateralization in fish due to environmental stressors such as ocean acidification, hypoxia and pollutants are worrisome. However, such studies tend to use a detour test and focus on population level measures, without validating whether lateralization is consistent within individuals across time. We conducted a multispecies, international assessment of the repeatability (R) of lateralization in four previously studied fish species using a detour test (T-maze), a common method for testing lateralization. We also reanalysed a published data set on a fifth species using new statistical methods. We expected the three shoaling species to exhibit greater within-individual consistency in lateralization than their nonshoaling counterparts given previous reports of stronger lateralization in group-living fishes. Absolute and relative lateralization scores were highly nonrepeatable in all five species (0.01

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KW - T-maze

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DO - 10.1016/j.anbehav.2020.06.025

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SP - 55

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JO - Animal Behaviour

JF - Animal Behaviour

ER -

Behavioural lateralization in a detour test is not repeatable in fishes

Abstract

Keywords

UN SDGs

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