No evidence for a relationship between breed cooperativeness and inequity aversion in dogs.

Inequity aversion, the resistance to inequitable outcomes, has been demonstrated in a wide variety of animal species. Inequity aversion was hypothesised to have co-evolved with cooperation but only limited evidence supports this. Dogs provide a suitable model species to test this hypothesis as dogs...

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Autores principales:	Jim McGetrick, Désirée Brucks, Sarah Marshall-Pescini, Friederike Range
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b95a50d054a5406b94c683127bdd177b
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spelling	oai:doaj.org-article:b95a50d054a5406b94c683127bdd177b2021-12-02T20:05:46ZNo evidence for a relationship between breed cooperativeness and inequity aversion in dogs.1932-620310.1371/journal.pone.0233067https://doaj.org/article/b95a50d054a5406b94c683127bdd177b2020-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0233067https://doaj.org/toc/1932-6203Inequity aversion, the resistance to inequitable outcomes, has been demonstrated in a wide variety of animal species. Inequity aversion was hypothesised to have co-evolved with cooperation but only limited evidence supports this. Dogs provide a suitable model species to test this hypothesis as dogs were previously shown to be inequity averse and dog breeds vary in the extent to which they were selected for cooperativeness. Here, we compared the response of 12 individuals of "cooperative worker" breeds with that of 12 individuals of "independent worker" breeds in the "paw task" previously used to demonstrate inequity aversion in dogs. We also compared the two breed groups' subsequent social behaviours in a food tolerance test and free interaction session. Although subjects in both breed groups were inequity averse, we found no considerable difference between the groups in the extent of the negative response to inequity or in the impact of the inequity on subsequent social behaviours. However, we found differences between the breed groups in the response to reward omission with cooperative breeds tending to work for longer than independent breeds. Additionally, in the free interaction session, individuals of cooperative breeds spent more time in proximity to their partner in the baseline condition than individuals of independent breeds. Overall, our results do not provide support for the hypothesis that inequity aversion and cooperation co-evolved. However, they illuminate potential differences in selection pressures experienced by cooperative worker and independent worker dog breeds throughout their evolutionary history.Jim McGetrickDésirée BrucksSarah Marshall-PesciniFriederike RangePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 15, Iss 6, p e0233067 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jim McGetrick Désirée Brucks Sarah Marshall-Pescini Friederike Range No evidence for a relationship between breed cooperativeness and inequity aversion in dogs.
description	Inequity aversion, the resistance to inequitable outcomes, has been demonstrated in a wide variety of animal species. Inequity aversion was hypothesised to have co-evolved with cooperation but only limited evidence supports this. Dogs provide a suitable model species to test this hypothesis as dogs were previously shown to be inequity averse and dog breeds vary in the extent to which they were selected for cooperativeness. Here, we compared the response of 12 individuals of "cooperative worker" breeds with that of 12 individuals of "independent worker" breeds in the "paw task" previously used to demonstrate inequity aversion in dogs. We also compared the two breed groups' subsequent social behaviours in a food tolerance test and free interaction session. Although subjects in both breed groups were inequity averse, we found no considerable difference between the groups in the extent of the negative response to inequity or in the impact of the inequity on subsequent social behaviours. However, we found differences between the breed groups in the response to reward omission with cooperative breeds tending to work for longer than independent breeds. Additionally, in the free interaction session, individuals of cooperative breeds spent more time in proximity to their partner in the baseline condition than individuals of independent breeds. Overall, our results do not provide support for the hypothesis that inequity aversion and cooperation co-evolved. However, they illuminate potential differences in selection pressures experienced by cooperative worker and independent worker dog breeds throughout their evolutionary history.
format	article
author	Jim McGetrick Désirée Brucks Sarah Marshall-Pescini Friederike Range
author_facet	Jim McGetrick Désirée Brucks Sarah Marshall-Pescini Friederike Range
author_sort	Jim McGetrick
title	No evidence for a relationship between breed cooperativeness and inequity aversion in dogs.
title_short	No evidence for a relationship between breed cooperativeness and inequity aversion in dogs.
title_full	No evidence for a relationship between breed cooperativeness and inequity aversion in dogs.
title_fullStr	No evidence for a relationship between breed cooperativeness and inequity aversion in dogs.
title_full_unstemmed	No evidence for a relationship between breed cooperativeness and inequity aversion in dogs.
title_sort	no evidence for a relationship between breed cooperativeness and inequity aversion in dogs.
publisher	Public Library of Science (PLoS)
publishDate	2020
url	https://doaj.org/article/b95a50d054a5406b94c683127bdd177b
work_keys_str_mv	AT jimmcgetrick noevidenceforarelationshipbetweenbreedcooperativenessandinequityaversionindogs AT desireebrucks noevidenceforarelationshipbetweenbreedcooperativenessandinequityaversionindogs AT sarahmarshallpescini noevidenceforarelationshipbetweenbreedcooperativenessandinequityaversionindogs AT friederikerange noevidenceforarelationshipbetweenbreedcooperativenessandinequityaversionindogs
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No evidence for a relationship between breed cooperativeness and inequity aversion in dogs.

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