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Utilize este identificador para citar ou criar um link para este item: http://acervodigital.unesp.br/handle/11449/24295
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dc.contributor.authorPamplona da Silva, D. J.-
dc.contributor.authorKraenkel, Roberto André-
dc.date.accessioned2013-09-30T18:55:30Z-
dc.date.accessioned2014-05-20T14:10:21Z-
dc.date.accessioned2016-10-25T17:21:05Z-
dc.date.available2013-09-30T18:55:30Z-
dc.date.available2014-05-20T14:10:21Z-
dc.date.available2016-10-25T17:21:05Z-
dc.date.issued2012-01-01-
dc.identifierhttp://dx.doi.org/10.1016/j.physa.2011.08.029-
dc.identifier.citationPhysica A-statistical Mechanics and Its Applications. Amsterdam: Elsevier B.V., v. 391, n. 1-2, p. 142-146, 2012.-
dc.identifier.issn0378-4371-
dc.identifier.urihttp://hdl.handle.net/11449/24295-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/24295-
dc.description.abstractconsider a single species population obeying a saturated growth model with spatial diffusion taken into account explicitly. Strong spatial heterogeneity is considered, represented by a position dependent reproduction rate. The geometry of the problem is that of two patches where the reproductive rate is positive, surrounded by unfavorable patches where it is negative. We focus on the particular case where the population would not persist in the single patches (sinks). We find by means of an analytical derivation, supplemented by a numerical calculation, the conditions for the persistence of the population in the compound system of weakly connected patches. We show that persistence is possible even if each individual patch is a sink where the population would go extinct. The results are of particular relevance for ecological management at the landscape level, showing that small patches may harbor populations as long as the connectivity with adjacent patches is maintained. Microcosmos experiences with bacteria could be performed for experimental verification of the predictions. (C) 2011 Elsevier B.V. All rights reserved.en
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
dc.format.extent142-146-
dc.language.isoeng-
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.subjectPopulation dynamicsen
dc.subjectFisher-Kolmogorov equationen
dc.subjectExtinctionsen
dc.subjectPatchesen
dc.subjectDiffusionen
dc.titlePopulation persistence in weakly-coupled sinksen
dc.typeoutro-
dc.contributor.institutionUniversidade Federal de Alfenas (UNIFAL)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniv Fed Alfenas Unifal MG, BR-37701970 Pocos de Caldas, Brazil-
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01140070 São Paulo, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01140070 São Paulo, Brazil-
dc.identifier.doi10.1016/j.physa.2011.08.029-
dc.identifier.wosWOS:000297230700019-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofPhysica A: Statistical Mechanics and Its Applications-
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