Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.3/1634
Título: A spatial scale assessment of habitat effects on arthropod communities of an oceanic island
Autor: Cardoso, Pedro
Aranda, Silvia C.
Lobo, Jorge M.
Dinis, Francisco
Gaspar, Clara
Borges, Paulo A. V.
Palavras-chave: Patterns of Diversity
Connectivity
Dispersal
Endemic Species
Exotic Plantations
Habitat Heterogeneity
Introduced Species
Land-Use
Landscape Matrix
Macaronesia
Native Species
Data: Set-2009
Editora: Elsevier
Citação: Cardoso, Pedro; Aranda, Silvia C.; Lobo, Jorge M.; Dinis, Francisco; Gaspar, Clara; Borges, Paulo A. V.A spatial scale assessment of habitat effects on arthropod communities of an oceanic island, Acta Oecologica, 35, 5, 590-597, 2009.
Resumo: Most habitats in the Azores have undergone substantial land-use changes and anthropogenic disturbance during the last six centuries. In this study we assessed how the richness, abundance and composition of arthropod communities change with: (1) habitat type and (2) the surrounding land-use at different spatial scales. The research was conducted in Terceira Island, Azores. In eighty-one sites of four different habitat types (natural and exotic forests, semi-natural and intensively managed pastures), epigaeic arthropods were captured with pitfall traps and classified as endemic, native or introduced. The land-use surrounding each site was characterized within a radius ranging from 100 to 5000 m. Non-parametric tests were used to identify differences in species richness, abundance and composition between habitat types at different spatial scales. Endemic and native species were more abundant in natural forests, while introduced species were more abundant in intensively managed pastures. Natural forests and intensively managed pastures influenced arthropod species richness and composition at all spatial scales. Exotic forests and semi-natural pastures, however, influenced the composition of arthropod communities at larger scales, promoting the connectivity of endemic and native species populations. Local species richness, abundance and composition of arthropod communities are mostly determined by the presence of nearby natural forests and/or intensively managed pastures. However, semi-natural pastures and exotic forests seem to play an important role as corridors between natural forests for both endemic and native species. Furthermore, exotic forests may serve as a refuge for some native species.
Descrição: Copyright © 2009 Elsevier Masson SAS. All rights reserved.
Peer review: yes
URI: http://hdl.handle.net/10400.3/1634
ISSN: 1146609X
Versão do Editor: http://dx.doi.org/10.1016/j.actao.2009.05.005
Aparece nas colecções:DCA - Artigos em Revistas Internacionais / Articles in International Journals

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