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dc.contributor.authorZhang, F.
dc.contributor.authorHui, C.
dc.contributor.authorPauw, A.
dc.date.accessioned2014-02-12T07:14:29Z
dc.date.available2014-02-12T07:14:29Z
dc.date.issued2013
dc.identifier.citationZhang, F., Hui, C. & Pauw, A. (2013) Adaptive divergence in Darwin’s race: how coevolution can generate trait diversity in a pollination system. Evolution, 67: 548-560.en
dc.identifier.issn2045-7758en
dc.identifier.urihttp://hdl.handle.net/123456789/1386
dc.description.abstractUnderstanding how reciprocal selection shapes interacting species in Darwin’s coevolutionary race is a captivating pursuit in evo- lutionary ecology. Coevolving traits can potentially display following three patterns: (1) geographical variation in matched traits, (2) bias in trait matching, and (3) bimodal distribution of a trait in certain populations. Based on the framework of adaptive dy- namics, we present an evolutionary model for a coevolving pollination system involving the long-proboscid fly ( Moegistorhynchus longirostris ) and the long-tubed iris ( Lapeirousia anceps ). The model successfully demonstrates that Darwin’s hypothesis can lead to all three patterns if costs are involved. Geographical variation in matched traits could be driven by geographical variation in environmental factors that affect the cost rate of trait escalation. Unequal benefits derived from the interaction by the fly and the flower could potentially cause the bias in trait matching of the system. Different cost rates to trait elongation incurred by the two species and weak assortative interactions in the coevolutionary race can drive divergent selection (i.e., an evolutionary branching) that leads to the bimodal distribution of traits. Overall, the model highlights the importance of assortative interactions and the balance of costs incurred by coevolving species as factors determining the eventual phenotypic outcome of coevolutionary interactions.en
dc.format.extent1027650 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.subjectAdaptive dynamicsen
dc.subjectcoevolutionen
dc.subjectevolutionary trapen
dc.subjectgeographic mosaic theoryen
dc.subjectgeographical variationen
dc.subjectpollinationen
dc.subjectRed Queen dynamicsen
dc.titleAdaptive divergence in Darwin’s race: how coevolution can generate trait diversity in a pollination systemen
dc.typeJournalArticlesen
dc.cibjournalEvolutionen
dc.cibprojectLarge-scale patterns in diversityen


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