Is β-diversity of Amazonian ant and dung beetles communities elevated at rainforest edges

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorMarsh, Charles J.-
Autor(es): dc.creatorFeitosa, Rodrigo M.-
Autor(es): dc.creatorLouzada, Julio-
Autor(es): dc.creatorEwers, Robert M.-
Data de aceite: dc.date.accessioned2026-02-09T12:33:22Z-
Data de disponibilização: dc.date.available2026-02-09T12:33:22Z-
Data de envio: dc.date.issued2019-03-22-
Data de envio: dc.date.issued2019-03-22-
Data de envio: dc.date.issued2018-08-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/33246-
Fonte completa do material: dc.identifierhttps://onlinelibrary.wiley.com/doi/full/10.1111/jbi.13357-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1163661-
Descrição: dc.descriptionAim: thousands of kilometres of rainforest edges are created every year throughforest fragmentation, but we have little knowledge of the impacts of edges on spa-tial patterns of species turnover and nestedness components of b-diversity.Location: A quasi-experimental landscape in the north-east Brazilian Amazon. Methods: we sampled dung beetles and ants using a sampling design based on afractal series of equilateral triangles that naturally allows examination at multiplespatial scales. We sampled two edge types (primary-secondary and primary-Eucalyp-tus forest) and three control sites immersed in primary, secondary and Eucalyptusforest. We measured b-diversity between communities across the primary forest-matrix edge and within communities at up to 1 km from the forest edge. We exam-ined b-diversity at multiple scales by partitioning the dissimilarity matrix into fractalorders representing inter-point distances of ~32, ~100, ~316 and ~1,000 m and intoturnover and nestedness components. Results: turnover but not nestedness was greater across the primary-Eucalyptus forest than primary-secondary forest edge. There was spillover of species acrossedges in both directions. Across edges and within controls, turnover was the maindriver of b-diversity. Within community, b-diversity was increased for dung beetlesat large scales (~300–1,000 m) at both edge types. This increase, however, was dri-ven by elevated nestedness. Levels of b-diversity were affected even ~300 m intohabitat interiors, but appeared to be at control levels by 1 km. Main conclusions: the effects of edges on the spatial dynamics of community com-position penetrated far beyond the typical distances at which forest structure andmicroclimate are altered. This indicates that for a significant proportion of Amazo-nian communities, the underlying processes determining diversity may be impactedby deforestation.-
Idioma: dc.languageen-
Publicador: dc.publisherWiley-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceJournal of Biogeography-
Palavras-chave: dc.subjectCommunity dissimilarity-
Palavras-chave: dc.subjectEdge effects-
Palavras-chave: dc.subjectFormicidae-
Palavras-chave: dc.subjectFragmentation-
Palavras-chave: dc.subjectScarabaeinae-
Palavras-chave: dc.subjectSpecies nestedness-
Palavras-chave: dc.subjectSpecies turnover-
Título: dc.titleIs β-diversity of Amazonian ant and dung beetles communities elevated at rainforest edges-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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