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dc.contributor.authorHaaland, Thomas
dc.contributor.authorWright, Jonathan
dc.contributor.authorKuijper, Bram
dc.contributor.authorRatikainen, Irja Ida
dc.date.accessioned2019-02-27T12:42:10Z
dc.date.available2019-02-27T12:42:10Z
dc.date.created2017-08-28T16:10:01Z
dc.date.issued2017
dc.identifier.citationAmerican Naturalist. 2017, 190 (4), .nb_NO
dc.identifier.issn0003-0147
dc.identifier.urihttp://hdl.handle.net/11250/2587808
dc.description.abstractDifferential allocation (DA) is the adaptive adjustment of reproductive investment (up or down) according to partner quality. A lack of theoretical treatments has led to some confusion in the interpretation of DA in the empirical literature. We present a formal framework for DA that highlights the nature of reproductive benefits versus costs for females mated to males of different quality. Contrary to popular belief, analytical and stochastic dynamic models both show that additive benefits of male quality on offspring fitness have no effect on optimal levels of female investment and thus cannot produce DA. Instead, if offspring fitness is affected multiplicatively by male quality, or male quality affects the female cost function, DA is expected because of changes in the marginal benefits or costs of extra investment. Additive male quality effects on the female cost function can cause a novel form of weak DA, because reduced costs can slightly favor current over future reproduction. Combinations of these distinct effects in more realistic model scenarios can explain various patterns of positive and negative DA reported for different species and mating systems. Our model therefore sheds new light on the diversity of empirical results by providing a strong conceptual framework for the DA hypothesis.nb_NO
dc.language.isoengnb_NO
dc.publisherUniversity of Chicago Pressnb_NO
dc.relation.urihttp://www.journals.uchicago.edu/doi/full/10.1086/693484
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.subjectEvolusjonsbiologinb_NO
dc.subjectEvolutionary biologynb_NO
dc.subjectAtferdsøkologinb_NO
dc.subjectBehavioural ecologynb_NO
dc.subjectLivshistorieevolusjonnb_NO
dc.subjectLife-history evolutionnb_NO
dc.titleDifferential allocation revisited: When should mate quality affect parental investment?nb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.subject.nsiVDP::Etologi: 485nb_NO
dc.subject.nsiVDP::Ethology: 485nb_NO
dc.source.pagenumber13nb_NO
dc.source.volume190nb_NO
dc.source.journalAmerican Naturalistnb_NO
dc.source.issue4nb_NO
dc.identifier.doi10.1086/693484
dc.identifier.cristin1489133
dc.relation.projectNorges forskningsråd: 240008nb_NO
dc.description.localcode© 2017 by The University of Chicago. All rights reserved. This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits reuse of the work with attribution.nb_NO
cristin.unitcode194,66,10,0
cristin.unitnameInstitutt for biologi
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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