Coevolution of cannibalistic predators and timid prey: evolutionary cycling and branching

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dc.contributor.author Lehtinen, Sami O.
dc.contributor.author Geritz, Stefan A.H.
dc.date.accessioned 2019-11-05T08:13:02Z
dc.date.available 2019-11-05T08:13:02Z
dc.date.issued 2019-12-21
dc.identifier.citation Lehtinen , S O & Geritz , S A H 2019 , ' Coevolution of cannibalistic predators and timid prey: evolutionary cycling and branching ' , Journal of Theoretical Biology , vol. 483 , 110001 . https://doi.org/10.1016/j.jtbi.2019.110001
dc.identifier.other PURE: 126669962
dc.identifier.other PURE UUID: 8366dfaf-33be-4445-bd74-f565f7f79e0f
dc.identifier.other RIS: urn:35014441E03B242D6A48B3633F8D2509
dc.identifier.other WOS: 000490056000008
dc.identifier.other ORCID: /0000-0002-7865-3541/work/64322198
dc.identifier.other ORCID: /0000-0003-3463-0660/work/64326000
dc.identifier.uri http://hdl.handle.net/10138/306743
dc.description.abstract We investigate the coevolution of cannibalistic predators and timid prey, which seek refuge upon detecting a predator. To understand how the species affect each other’s evolution, we derived the ecological model from individual-level processes using ordinary differential equations. The ecological dynamics exhibit bistability between equilibrium and periodic attractors, which may disappear through catastrophic bifurcations. Using the critical function analysis of adaptive dynamics, we classify general trade-offs between cannibalism and prey capture that produce different evolutionary outcomes. The evolutionary analysis reveals several ways in which cannibalism emerges as a response to timidity of the prey. The long-term coevolution either attains a singularity, or becomes cyclic through two mechanisms: genetical cycles through Hopf bifurcation of the singularity, or ecogenetical cycles involving abrupt switching between ecological attractors. Further diversification of cannibalism occurs through evolutionary branching, which is predicted to be delayed when simultaneous prey evolution is necessary for the singularity’s attainability. We conclude that predator-prey coevolution produces a variety of outcomes, in which evolutionary cycles are commonplace. en
dc.format.extent 16
dc.language.iso eng
dc.relation.ispartof Journal of Theoretical Biology
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject Adaptive dynamics
dc.subject Critical function analysis
dc.subject Delayed evolutionary branching
dc.subject Ecological bistability
dc.subject Fold bifurcation of periodic orbits
dc.subject Hopf bifurcation
dc.subject 1181 Ecology, evolutionary biology
dc.title Coevolution of cannibalistic predators and timid prey: evolutionary cycling and branching en
dc.type Article
dc.contributor.organization Department of Mathematics and Statistics
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1016/j.jtbi.2019.110001
dc.relation.issn 0022-5193
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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