The interplay between population stability and food-web topology predicts the occurrence of motifs in complex food-webs

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorMonteiro, Angelo B.-
Autor(es): dc.creatorFaria, Lucas Del Bianco-
Data de aceite: dc.date.accessioned2026-02-09T12:22:28Z-
Data de disponibilização: dc.date.available2026-02-09T12:22:28Z-
Data de envio: dc.date.issued2018-10-26-
Data de envio: dc.date.issued2018-10-26-
Data de envio: dc.date.issued2016-11-21-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/31450-
Fonte completa do material: dc.identifierhttps://www.sciencedirect.com/science/article/pii/S0022519316302946-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1160000-
Descrição: dc.descriptionIn this paper, we analyzed the occurrence of motifs (modules) in empirical food-webs from different ecosystem types. Differently from previous studies, our analysis did not relied on randomized networks with specific a priori assumptions, which has been demonstrated to produce inconsistent patterns. We aimed to evaluate the interplay between population dynamics and food-web topology, and its consequences to module occurrences in complex food-webs. We evaluated 13 arrangements of three-species modules and 199 arrangements of four-species modules. For each module, we assembled, a corresponding Jacobian predation matrix, and evaluated the arrangements expected to persist after a disturbance in the equilibrium of the populations dynamics (local stability). Our general results were that (1) a limited set of stable arrangements occurs most frequently; (2) the omnivory module is the only three-species module expected to occur both in the stable and unstable region; (3) connectance and omnivory affects the proportion of stable modules; and (4) the type of ecosystem influence the proportion of stable modules. Further, we demonstrated that food-web topology and population dynamics influenced module occurrences in natural communities; presented a function for the ways that local stability increases the probability of module occurrence; and highlighted the use of omnivory degree to access the effect of feeding at more than one trophic level on food-web stability.-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceJournal of Theoretical Biology-
Palavras-chave: dc.subjectNetwork-
Palavras-chave: dc.subjectOmnivory-
Palavras-chave: dc.subjectCompartmentalization-
Palavras-chave: dc.subjectFood-web structure-
Palavras-chave: dc.subjectComplexity-
Palavras-chave: dc.subjectStability-
Palavras-chave: dc.subjectComplexity-stability relationship-
Palavras-chave: dc.subjectLocal stability-
Título: dc.titleThe interplay between population stability and food-web topology predicts the occurrence of motifs in complex food-webs-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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