Critical patch size reduction by heterogeneous diffusion

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Autor(es): dc.contributorPUC-Rio-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorPrinceton University-
Autor(es): dc.contributorRutgers University-
Autor(es): dc.contributorInstitute of Science and Technology for Complex Systems (INCT-SC)-
Autor(es): dc.creatorDos Santos, M. A.F.-
Autor(es): dc.creatorDornelas, V. [UNESP]-
Autor(es): dc.creatorColombo, E. H.-
Autor(es): dc.creatorAnteneodo, C.-
Data de aceite: dc.date.accessioned2022-02-22T00:48:16Z-
Data de disponibilização: dc.date.available2022-02-22T00:48:16Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-10-28-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1103/PhysRevE.102.042139-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/206795-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/206795-
Descrição: dc.descriptionPopulation survival depends on a large set of factors and on how they are distributed in space. Due to landscape heterogeneity, species can occupy particular regions that provide the ideal scenario for development, working as a refuge from harmful environmental conditions. Survival occurs if population growth overcomes the losses caused by adventurous individuals that cross the patch edge. In this work, we consider a single species dynamics in a patch with a space-dependent diffusion coefficient. We show analytically, within the Stratonovich framework, that heterogeneous diffusion reduces the minimal patch size for population survival when contrasted with the homogeneous case with the same average diffusivity. Furthermore, this result is robust regardless of the particular choice of the diffusion coefficient profile. We also discuss how this picture changes beyond the Stratonovich framework. Particularly, the Itô case, which is nonanticipative, can promote the opposite effect, while Hänggi-Klimontovich interpretation reinforces the reduction effect.-
Descrição: dc.descriptionDepartment of Physics PUC-Rio, Rua Marquês de São Vicente 225-
Descrição: dc.descriptionICTP-SAIFR IFT-UNESP, Rua Dr. Bento Teobaldo Ferraz 271-
Descrição: dc.descriptionDepartment of Ecology and Evolutionary Biology Princeton University-
Descrição: dc.descriptionDepartment of Ecology Evolution and Natural Resources Rutgers University-
Descrição: dc.descriptionInstitute of Science and Technology for Complex Systems (INCT-SC)-
Descrição: dc.descriptionICTP-SAIFR IFT-UNESP, Rua Dr. Bento Teobaldo Ferraz 271-
Idioma: dc.languageen-
Relação: dc.relationPhysical Review E-
???dc.source???: dc.sourceScopus-
Título: dc.titleCritical patch size reduction by heterogeneous diffusion-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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