Assessment of help value affects reciprocation in Norway rats.
cooperation
direct reciprocity
food provisioning
helping
quality–quantity trade-off
trading
Journal
Royal Society open science
ISSN: 2054-5703
Titre abrégé: R Soc Open Sci
Pays: England
ID NLM: 101647528
Informations de publication
Date de publication:
Oct 2023
Oct 2023
Historique:
received:
23
08
2023
accepted:
03
10
2023
medline:
27
10
2023
pubmed:
27
10
2023
entrez:
27
10
2023
Statut:
epublish
Résumé
Wild-type Norway rats reciprocate help received in a well-replicated experimental food-giving task, but the criteria to appraise the received help's value are unclear. We tested whether quality or quantity of received help is more important when deciding to return help, and whether partner familiarity and own current need affect this evaluation. We experimentally varied recipients of help's hunger state, and familiar or unfamiliar partners provided either higher caloric food (enhanced quantity; carrots) or food higher in protein and fat (enhanced quality; cheese). Reciprocation of received help was our criterion for the rats' value assessment. Familiarity, food type and hunger state interacted and affected help returned by rats. Rats returned less help to familiar partners than to unfamiliar partners. With unfamiliar partners, rats returned more help to partners that had donated preferred food (cheese) than to partners that had donated less preferred food (carrots), and they returned help earlier if they were satiated and had received cheese. With familiar partners, food-deprived rats that had received cheese returned more help than satiated rats that had received carrots. Our results suggest that Norway rats assess the received help's value based on its quality, their current need and partner familiarity before reciprocating received help.
Identifiants
pubmed: 37885980
doi: 10.1098/rsos.231253
pii: rsos231253
pmc: PMC10598426
doi:
Banques de données
figshare
['10.6084/m9.figshare.c.6879622']
Types de publication
Journal Article
Langues
eng
Pagination
231253Informations de copyright
© 2023 The Authors.
Déclaration de conflit d'intérêts
We have no competing interests.
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