Demographic effects of aggregation in the presence of a component Allee effect

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorPrinceton University-
Autor(es): dc.contributorHelmholtz-Zentrum Dresden Rossendorf (HZDR)-
Autor(es): dc.creatorJorge, Daniel C. P.-
Autor(es): dc.creatorMartinez-Garcia, Ricardo-
Data de aceite: dc.date.accessioned2025-08-21T23:10:20Z-
Data de disponibilização: dc.date.available2025-08-21T23:10:20Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-06-25-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1098/rsif.2024.0042-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/303392-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/303392-
Descrição: dc.descriptionThe component Allee effect (AE) is the positive correlation between an organism's fitness component and population density. Depending on the population spatial structure, which determines the interactions between organisms, a component AE might lead to positive density dependence in the population per-capita growth rate and establish a demographic AE. However, existing spatial models impose a fixed population spatial structure, which limits the understanding of how a component AE and spatial dynamics jointly determine the existence of demographic AEs. We introduce a spatially explicit theoretical framework where spatial structure and population dynamics are emergent properties of the individual-level demographic and movement rates. This framework predicts various spatial patterns depending on its specific parametrization, including evenly spaced aggregates of organisms, which determine the demographic-level by-products of the component AE. We find that aggregation increases population abundance and allows population survival in harsher environments and at lower global population densities when compared with uniformly distributed organisms. Moreover, aggregation can prevent the component AE from manifesting at the population level or restrict it to the level of each independent aggregate. These results provide a mechanistic understanding of how component AEs might operate for different spatial structures and manifest at larger scales.-
Descrição: dc.descriptionICTP South American Institute for Fundamental Research Instituto de Física Teórica Universidade Estadual Paulista - UNESP, Rua Dr. Bento Teobaldo Ferraz 271, Bloco 2 - Barra Funda, SP-
Descrição: dc.descriptionDepartment of Ecology and Evolutionary Biology Princeton University-
Descrição: dc.descriptionCenter for Advanced Systems Understanding (CASUS) Helmholtz-Zentrum Dresden Rossendorf (HZDR)-
Descrição: dc.descriptionICTP South American Institute for Fundamental Research Instituto de Física Teórica Universidade Estadual Paulista - UNESP, Rua Dr. Bento Teobaldo Ferraz 271, Bloco 2 - Barra Funda, SP-
Idioma: dc.languageen-
Relação: dc.relationJournal of the Royal Society Interface-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAllee effect-
Palavras-chave: dc.subjectalternative stable states-
Palavras-chave: dc.subjectgroup Allee effect-
Palavras-chave: dc.subjectmathematical modelling-
Palavras-chave: dc.subjectpopulation dynamics-
Palavras-chave: dc.subjectspatial patterns-
Título: dc.titleDemographic effects of aggregation in the presence of a component Allee effect-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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