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Conditional reproductive strategies under variable environmental conditions
University of Helsinki, Finland.
University of Helsinki, Finland.
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för matematik (MA).ORCID-id: 0000-0002-7261-0399
2017 (engelsk)Inngår i: Annales Zoologici Fennici, ISSN 0003-455X, E-ISSN 1797-2450, Vol. 54, nr 1-4, s. 193-204Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Within the framework of adaptive dynamics we consider the evolution by natural selection of reproductive strategies in which individualsmay adjust their reproductive behaviour in response to changing environmental conditions. As a specific example we consider a discrete-time model in which possible fluctuations in the environmental conditions are caused by predator-prey interaction. Our main findings include: 1) Coexistence between two fixed strategies (i.e., strategies that do not adjust to changing environmental conditions) is impossible. There exists a best fixed strategy, which invades and ousts all other fixed strategies. 2) A necessary condition for conditional (adjustable) strategies to evolve is that there are fluctuations in the environmental conditions. Predator-prey interactions may cause such fluctuations and under natural assumptions there exists an optimal conditional strategy which is uninvadable and invades and ousts allother strategies.

sted, utgiver, år, opplag, sider
Finnish Zoological and Botanical Publishing Board , 2017. Vol. 54, nr 1-4, s. 193-204
Emneord [en]
adjustable strategy, environental conditions, adaptive dynamics
HSV kategori
Forskningsprogram
Matematik, Tillämpad matematik
Identifikatorer
URN: urn:nbn:se:lnu:diva-63759DOI: 10.5735/086.054.0117ISI: 000401779600017Scopus ID: 2-s2.0-85019917810OAI: oai:DiVA.org:lnu-63759DiVA, id: diva2:1094817
Tilgjengelig fra: 2017-05-11 Laget: 2017-05-11 Sist oppdatert: 2020-12-11bibliografisk kontrollert

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