Patch exploitation strategies of parasitoids: The role of sex ratio and forager's interference in structuring metapopulations

dc.creatorReigada, C
dc.creatorAraujo, SBL
dc.creatorde Aguiar, MAM
dc.date2012
dc.dateAPR 10
dc.date2014-07-30T14:30:50Z
dc.date2015-11-26T16:28:55Z
dc.date2014-07-30T14:30:50Z
dc.date2015-11-26T16:28:55Z
dc.date.accessioned2018-03-28T23:09:58Z
dc.date.available2018-03-28T23:09:58Z
dc.identifierEcological Modelling. Elsevier Science Bv, v. 230, n. 11, n. 21, 2012.
dc.identifier0304-3800
dc.identifier1872-7026
dc.identifierWOS:000302517200002
dc.identifier10.1016/j.ecolmodel.2012.01.012
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/59126
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/59126
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1269594
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionWe use a mathematical model to explore the effects of parasitoid reproductive strategies and foraging behavior in response to spatio-temporal variations in the patch quality of a host-parasitoid metapopulation system. The variations of patch quality over the landscape were measured by the presence of parasitoid competitors and the density of hosts. The parasitoid responses to patch quality are given by three different foraging behaviors: (i) the decision to remain in or leave the current patch; (ii) the control of progeny's sex ratio and (iii) competitive abilities, measured by changes in the potential to attack hosts due to interference from conspecifics in the exploited patch. We study the dynamics of host and parasitoid populations characterized by different levels of density-dependent sex ratio adjustment and interference competition. Our results show that population stability increases when parasitoid growth is correlated with patch conditions. The effect of sex ratio adjustment alone does not account for qualitative changes to system dynamics or to the distribution patterns of species. In contrast, the degree of competitive interference among the parasitoids plays a crucial role in constraining the parasitoids' potential to reduce host populations and in determining the species' distribution in the landscape. We found that high levels of interference competition disrupt the population dynamics within a patch and allows hosts to completely dominate the landscape. This study shows that the inclusion of life history traits and the co-evolutionary aspects of host-parasitoid interaction can help researchers to understand species distribution patterns in the landscape. (C) 2012 Elsevier B.V. All rights reserved.
dc.description230
dc.description11
dc.description21
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionCAPES [0004428/2010]
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationEcological Modelling
dc.relationEcol. Model.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectPatch quality requirement
dc.subjectFemale-biased sex ratio
dc.subjectDensity-dependent dispersion
dc.subjectPatterns of species distribution
dc.subjectLocal Mate Competition
dc.subjectPopulation-dynamics
dc.subjectInsect Parasitoids
dc.subjectPattern-formation
dc.subjectTime Allocation
dc.subjectHost
dc.subjectChaos
dc.titlePatch exploitation strategies of parasitoids: The role of sex ratio and forager's interference in structuring metapopulations
dc.typeArtículos de revistas


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