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Male Norway rats cooperate according to direct but not generalized reciprocity rules

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Male Norway rats cooperate according to direct but not generalized reciprocity rules. / Schweinfurth, Manon K.; Aeschbacher, Jonathan; Santi, Massimiliano; Taborsky, Michael.

In: Animal Behaviour, Vol. 152, 06.2019, p. 93-101.

Research output: Contribution to journalArticle

Harvard

Schweinfurth, MK, Aeschbacher, J, Santi, M & Taborsky, M 2019, 'Male Norway rats cooperate according to direct but not generalized reciprocity rules' Animal Behaviour, vol. 152, pp. 93-101. https://doi.org/10.1016/j.anbehav.2019.03.015

APA

Schweinfurth, M. K., Aeschbacher, J., Santi, M., & Taborsky, M. (2019). Male Norway rats cooperate according to direct but not generalized reciprocity rules. Animal Behaviour, 152, 93-101. https://doi.org/10.1016/j.anbehav.2019.03.015

Vancouver

Schweinfurth MK, Aeschbacher J, Santi M, Taborsky M. Male Norway rats cooperate according to direct but not generalized reciprocity rules. Animal Behaviour. 2019 Jun;152:93-101. https://doi.org/10.1016/j.anbehav.2019.03.015

Author

Schweinfurth, Manon K. ; Aeschbacher, Jonathan ; Santi, Massimiliano ; Taborsky, Michael. / Male Norway rats cooperate according to direct but not generalized reciprocity rules. In: Animal Behaviour. 2019 ; Vol. 152. pp. 93-101.

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@article{026f555591cc403cb3e8c913277dee97,
title = "Male Norway rats cooperate according to direct but not generalized reciprocity rules",
abstract = "Reciprocal cooperation may evolve if the costs of help are reliably compensated for by delayed returns provided in future interactions. The associated probabilities and cost–benefit ratios may vary systematically between the sexes, which often display different dispersal strategies and interaction patterns. Whereas female Norway rats, Rattus norvegicus, are known to apply direct and generalized decision rules of reciprocal cooperation, the rules according to which males reciprocate favours are less well understood. Therefore, we investigated the cooperation propensity of male wild-type Norway rats. Male test rats experienced cooperating partners that provided food to them, or defecting partners that refused to provide help. Afterwards, test rats could donate food to previously experienced or unknown partners, resembling direct and generalized reciprocity paradigms, respectively. Male rats cooperated according to direct reciprocity, suggesting that this decision rule is similarly important for both sexes. However, whereas females additionally help according to generalized reciprocity, males did not apply this rule. These results suggest a sex difference in reciprocal decision rules, highlighting the potential importance of different interaction patterns and cost–benefit ratios between the sexes.",
keywords = "Altruism, Cooperation, Generosity, Reciprocity, Sex differences",
author = "Schweinfurth, {Manon K.} and Jonathan Aeschbacher and Massimiliano Santi and Michael Taborsky",
note = "Funding was provided by the Swiss National Science Foundation grants 31003A_156152 and 31003A 176174 to M.T. and P2BEP3 175269 to M.K.S.",
year = "2019",
month = "6",
doi = "10.1016/j.anbehav.2019.03.015",
language = "English",
volume = "152",
pages = "93--101",
journal = "Animal Behaviour",
issn = "0003-3472",
publisher = "ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Male Norway rats cooperate according to direct but not generalized reciprocity rules

AU - Schweinfurth, Manon K.

AU - Aeschbacher, Jonathan

AU - Santi, Massimiliano

AU - Taborsky, Michael

N1 - Funding was provided by the Swiss National Science Foundation grants 31003A_156152 and 31003A 176174 to M.T. and P2BEP3 175269 to M.K.S.

PY - 2019/6

Y1 - 2019/6

N2 - Reciprocal cooperation may evolve if the costs of help are reliably compensated for by delayed returns provided in future interactions. The associated probabilities and cost–benefit ratios may vary systematically between the sexes, which often display different dispersal strategies and interaction patterns. Whereas female Norway rats, Rattus norvegicus, are known to apply direct and generalized decision rules of reciprocal cooperation, the rules according to which males reciprocate favours are less well understood. Therefore, we investigated the cooperation propensity of male wild-type Norway rats. Male test rats experienced cooperating partners that provided food to them, or defecting partners that refused to provide help. Afterwards, test rats could donate food to previously experienced or unknown partners, resembling direct and generalized reciprocity paradigms, respectively. Male rats cooperated according to direct reciprocity, suggesting that this decision rule is similarly important for both sexes. However, whereas females additionally help according to generalized reciprocity, males did not apply this rule. These results suggest a sex difference in reciprocal decision rules, highlighting the potential importance of different interaction patterns and cost–benefit ratios between the sexes.

AB - Reciprocal cooperation may evolve if the costs of help are reliably compensated for by delayed returns provided in future interactions. The associated probabilities and cost–benefit ratios may vary systematically between the sexes, which often display different dispersal strategies and interaction patterns. Whereas female Norway rats, Rattus norvegicus, are known to apply direct and generalized decision rules of reciprocal cooperation, the rules according to which males reciprocate favours are less well understood. Therefore, we investigated the cooperation propensity of male wild-type Norway rats. Male test rats experienced cooperating partners that provided food to them, or defecting partners that refused to provide help. Afterwards, test rats could donate food to previously experienced or unknown partners, resembling direct and generalized reciprocity paradigms, respectively. Male rats cooperated according to direct reciprocity, suggesting that this decision rule is similarly important for both sexes. However, whereas females additionally help according to generalized reciprocity, males did not apply this rule. These results suggest a sex difference in reciprocal decision rules, highlighting the potential importance of different interaction patterns and cost–benefit ratios between the sexes.

KW - Altruism

KW - Cooperation

KW - Generosity

KW - Reciprocity

KW - Sex differences

U2 - 10.1016/j.anbehav.2019.03.015

DO - 10.1016/j.anbehav.2019.03.015

M3 - Article

VL - 152

SP - 93

EP - 101

JO - Animal Behaviour

T2 - Animal Behaviour

JF - Animal Behaviour

SN - 0003-3472

ER -

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ID: 258819251