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dc.contributor.authorHögstedt, Göraneng
dc.contributor.authorSeldal, Taraldeng
dc.contributor.authorBreistøl, Arildeng
dc.date.accessioned2008-02-11T07:23:37Z
dc.date.available2008-02-11T07:23:37Z
dc.date.issued2005eng
dc.identifier.citationEcology 2005 69 (2): 373-378. Copyright by the Ecological Society of Americaen
dc.identifier.issn0012-9615eng
dc.identifier.urihttp://hdl.handle.net/1956/2580
dc.description.abstractAlthough cyclic animal dynamics have long been a focus of scientific interest, the variable cycle lengths are poorly understood. Based on a review of the literature, we suggest that period length in animals showing multiannual cycles is related to the life span of their food plant rather than to any trait of the animal, such as mass or fecundity. We envisage that this pattern is brought about by a prolonged mobilization of induced defenses in longer lived plants, which can better afford periods of low reproductive output than can short-lived plants. On the basis of this hypothesis we expect animals with similar diets to show similar cycle lengths, irrespective of taxonomy and size. A path analysis, on the vertebrate herbivores, shows that 92% of the variation in cycle length is explained by foodplant longevity and that body mass adds little to this.en
dc.language.isoengeng
dc.publisherEcological Society of Americaeng
dc.subjectBirdeng
dc.subjectCyclic herbivore populationseng
dc.subjectFood-plant longevityeng
dc.subjectHerbivoryeng
dc.subjectInsecteng
dc.subjectMammalseng
dc.subjectMultiannual cycleseng
dc.subjectPlant life spaneng
dc.titlePeriod lenght in cyclic animal populationseng
dc.typePeer reviewedeng
dc.typeJournal articleeng
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480nob
bora.peerreviewedPeer reviewedeng


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