Biotic integrity of the arthropod communities in the natural forests of Azores

Detalhes bibliográficos
Autor(a) principal: Cardoso, Pedro
Data de Publicação: 2007
Outros Autores: Borges, Paulo A. V., Gaspar, Clara
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.3/1399
Resumo: Copyright © Springer Science+Business Media B.V. 2006.
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spelling Biotic integrity of the arthropod communities in the natural forests of AzoresDisturbanceEndemic SpeciesIBIInvasive SpeciesIsland EcosystemsMacaronesiaMetricsMultimetric IndexNaturalnessScalabilityCopyright © Springer Science+Business Media B.V. 2006.The loss of biotic integrity in ecosystems due to human pressure has been receiving much attention from the scientific community. The primary aim of this study is to understand how the increasing human pressure on natural forests in the Azorean archipelago (North Atlantic) is affecting their epigean arthropod communities and which biological parameters it affects most. An expert team did fieldwork covering most of the natural forests (mainly inside nature reserves) of the archipelago using standardized pitfall trapping. To build a multimetric index we tested a number of taxonomic and ecological parameters that can potentially be influenced by disturbance. Sixteen of these were found to be significantly influenced by disturbance in forests. We retained seven metrics due to both, desirable scalability properties and relatively low correlation between them. These included the percentages of endemic and predator species richness and also predator abundance, which are inversely related to disturbance; and the percentages of native and saprophagous species richness and introduced and herbivore abundance, which are positively related to disturbance. All seven metrics were combined in an Index of Biotic Integrity (IBI) value. We then proceeded to understand which potential disturbance factors are influencing the biotic integrity of communities and how such influence is felt. Five disturbance factors were found to influence the IBI, although in different ways: the size and fragmentation of reserves, the distance of sites to the reserve borders, the invasion by alien plants and the density of human paths at the sites. Given that only percentages of taxonomical or ecological characteristics were chosen as metrics, we tested and found the scalability of the IBI to be possible, allowing the comparison of sites with different collecting effort or even the comparison of reserves with different areas and numbers of collecting sites in each. Finally, we propose a novel graphical representation for multimetric indices like the IBI, one which allows retaining much of the information that is usually lost in multimetric indices.SpringerRepositório da Universidade dos AçoresCardoso, PedroBorges, Paulo A. V.Gaspar, Clara2012-06-11T15:31:48Z20072012-06-07T13:57:26Z2007-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/1399engCardoso, P.; Borges, P.A.V.; Gaspar, C. Biotic integrity of the arthropod communities in the natural forests of Azores, "BIODIVERSITY AND CONSERVATION", 16(10), 2883-2901, 2007.0960-3115 (Print)info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-12-20T14:29:04ZPortal AgregadorONG
dc.title.none.fl_str_mv Biotic integrity of the arthropod communities in the natural forests of Azores
title Biotic integrity of the arthropod communities in the natural forests of Azores
spellingShingle Biotic integrity of the arthropod communities in the natural forests of Azores
Cardoso, Pedro
Disturbance
Endemic Species
IBI
Invasive Species
Island Ecosystems
Macaronesia
Metrics
Multimetric Index
Naturalness
Scalability
title_short Biotic integrity of the arthropod communities in the natural forests of Azores
title_full Biotic integrity of the arthropod communities in the natural forests of Azores
title_fullStr Biotic integrity of the arthropod communities in the natural forests of Azores
title_full_unstemmed Biotic integrity of the arthropod communities in the natural forests of Azores
title_sort Biotic integrity of the arthropod communities in the natural forests of Azores
author Cardoso, Pedro
author_facet Cardoso, Pedro
Borges, Paulo A. V.
Gaspar, Clara
author_role author
author2 Borges, Paulo A. V.
Gaspar, Clara
author2_role author
author
dc.contributor.none.fl_str_mv Repositório da Universidade dos Açores
dc.contributor.author.fl_str_mv Cardoso, Pedro
Borges, Paulo A. V.
Gaspar, Clara
dc.subject.por.fl_str_mv Disturbance
Endemic Species
IBI
Invasive Species
Island Ecosystems
Macaronesia
Metrics
Multimetric Index
Naturalness
Scalability
topic Disturbance
Endemic Species
IBI
Invasive Species
Island Ecosystems
Macaronesia
Metrics
Multimetric Index
Naturalness
Scalability
description Copyright © Springer Science+Business Media B.V. 2006.
publishDate 2007
dc.date.none.fl_str_mv 2007
2007-01-01T00:00:00Z
2012-06-11T15:31:48Z
2012-06-07T13:57:26Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.3/1399
url http://hdl.handle.net/10400.3/1399
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Cardoso, P.; Borges, P.A.V.; Gaspar, C. Biotic integrity of the arthropod communities in the natural forests of Azores, "BIODIVERSITY AND CONSERVATION", 16(10), 2883-2901, 2007.
0960-3115 (Print)
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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