Host-Parasite Arms Races and Rapid Changes in Bird Egg Appearance

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dc.contributor.authorSpottiswoode, Claire N
dc.contributor.authorStevens, Martin
dc.date.accessioned2021-10-08T07:20:33Z
dc.date.available2021-10-08T07:20:33Z
dc.date.issued2012
dc.description.abstractAbstract Coevolutionary arms races are a powerful force driving evolution, adaptation, and diversification. They can generate phenotypic polymorphisms that render it harder for a coevolving parasite or predator to exploit any one individual of a given species. In birds, egg polymorphisms should be an effective defense against mimetic brood parasites and are extreme in the African tawny-flanked prinia (Prinia subflava) and its parasite, the cuckoo finch (Anomalospiza imberbis). Here we use models of avian visual perception to analyze the appearance of prinia and cuckoo finch eggs from the same location over 40 years. We show that the two interacting populations have experienced rapid changes in egg traits. Egg colors of both species have diversified over time, expanding into avian color space as expected under negative frequency-dependent selection. Egg pattern showed signatures of both frequency-dependent and directional selection in different traits, which appeared to be evolving independently of one ano...
dc.identifier.apacitationSpottiswoode, C. N., & Stevens, M. (2012). Host-Parasite Arms Races and Rapid Changes in Bird Egg Appearance. <i>The American Naturalist</i>, 179(5), 633 - 648. http://hdl.handle.net/11427/34950en_ZA
dc.identifier.chicagocitationSpottiswoode, Claire N, and Martin Stevens "Host-Parasite Arms Races and Rapid Changes in Bird Egg Appearance." <i>The American Naturalist</i> 179, 5. (2012): 633 - 648. http://hdl.handle.net/11427/34950en_ZA
dc.identifier.citationSpottiswoode, C.N. & Stevens, M. 2012. Host-Parasite Arms Races and Rapid Changes in Bird Egg Appearance. <i>The American Naturalist.</i> 179(5):633 - 648. http://hdl.handle.net/11427/34950en_ZA
dc.identifier.issn0003-0147
dc.identifier.issn1537-5323
dc.identifier.ris TY - Journal Article AU - Spottiswoode, Claire N AU - Stevens, Martin AB - Abstract Coevolutionary arms races are a powerful force driving evolution, adaptation, and diversification. They can generate phenotypic polymorphisms that render it harder for a coevolving parasite or predator to exploit any one individual of a given species. In birds, egg polymorphisms should be an effective defense against mimetic brood parasites and are extreme in the African tawny-flanked prinia (Prinia subflava) and its parasite, the cuckoo finch (Anomalospiza imberbis). Here we use models of avian visual perception to analyze the appearance of prinia and cuckoo finch eggs from the same location over 40 years. We show that the two interacting populations have experienced rapid changes in egg traits. Egg colors of both species have diversified over time, expanding into avian color space as expected under negative frequency-dependent selection. Egg pattern showed signatures of both frequency-dependent and directional selection in different traits, which appeared to be evolving independently of one ano... DA - 2012 DB - OpenUCT DP - University of Cape Town IS - 5 J1 - The American Naturalist LK - https://open.uct.ac.za PY - 2012 SM - 0003-0147 SM - 1537-5323 T1 - Host-Parasite Arms Races and Rapid Changes in Bird Egg Appearance TI - Host-Parasite Arms Races and Rapid Changes in Bird Egg Appearance UR - http://hdl.handle.net/11427/34950 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/34950
dc.identifier.vancouvercitationSpottiswoode CN, Stevens M. Host-Parasite Arms Races and Rapid Changes in Bird Egg Appearance. The American Naturalist. 2012;179(5):633 - 648. http://hdl.handle.net/11427/34950.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Biological Sciences
dc.publisher.facultyFaculty of Science
dc.sourceThe American Naturalist
dc.source.journalissue5
dc.source.journalvolume179
dc.source.pagination633 - 648
dc.source.urihttps://dx.doi.org/10.1086/665031
dc.subject.othercoevolution
dc.subject.othervision
dc.subject.otheregg color
dc.subject.otheregg pattern
dc.subject.otherbrood parasitism
dc.subject.otherfrequency-dependent selection
dc.subject.otherSocial parasitism
dc.subject.otherColor
dc.subject.otherVision
dc.subject.otherCoevolution
dc.subject.otherEgg
dc.subject.otherAves
dc.subject.otherHost parasite relation
dc.subject.otherVertebrata
dc.subject.otherParasitisme social
dc.subject.otherCouleur
dc.subject.otherCoévolution
dc.subject.otherOeuf
dc.subject.otherRelation hôte parasite
dc.subject.otherParasitismo social
dc.subject.otherVisión
dc.subject.otherCoevolución
dc.subject.otherHuevo
dc.subject.otherRelación huesped parásito
dc.titleHost-Parasite Arms Races and Rapid Changes in Bird Egg Appearance
dc.typeJournal Article
uct.type.publicationResearch
uct.type.resourceJournal Article
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