Canopy insect herbivores in the Azorean Laurisilva forests: key host plant species in a highly generalist insect community
| Autor(a) principal: | |
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| Data de Publicação: | 2005 |
| Outros Autores: | , , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
| Texto Completo: | http://hdl.handle.net/10400.3/1403 |
Resumo: | Copyright © ECOGRAPHY 2005. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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Canopy insect herbivores in the Azorean Laurisilva forests: key host plant species in a highly generalist insect communityEcologyPatterns of DiversityLaurisilva ForestAzoresCopyright © ECOGRAPHY 2005.This article explores patterns of insect herbivore distribution in the canopy of the Laurisilva forests on seven islands in the Azores archipelago. To our knowledge, this is one of the first extensive studied of this type in tree or shrub canopies of oceanic island ecosystems. One of the most frequently debated characteristics of such ecosystems is the likely prevalence of vague, ill-defined niches due to taxonomic disharmony, which may have implications for insect-plant interactions. For instance, an increase in ecological opportunities for generalist species is expected due to the lack of predator groups and reduced selection for chemical defence in host plants. The following two questions were addressed: 1) Are specialists rare species, and insect herbivore species randomly distributed among host plant species in the Azores? 2) Are the variances in insect herbivore species composition, frequency and richness explained by host plants or by regional island effects? We expect a proportional distribution of herbivore species between host plants, influenced by host frequency and distinct island effects; otherwise, deviation from expectation might suggest habitat preference for specific host tree crowns. Canopy beating tray samples were performed on seven islands, comprising 50 transects with 1 to 3 plant species each (10 replicates per species), giving 1320 samples from ten host species trees or shrubs in total. From a total of 129 insect herbivore species, a greater number of herbivore species was found on Juniperus brevifolia (s=65) and Erica azorica (s=53). However, the number of herbivore species per individual tree crown was higher for E. azorica than for any other host, on all islands, despite the fact that it was only the fourth more abundant plant. In addition, higher insect species richness and greater insect abundance were found on the trees of Santa Maria Island, the oldest in the archipelago. Insect species composition was strongly influenced by the presence of E. azorica, which was the only host plant with a characteristic fauna across the archipelago, whereas the fauna of other plant crowns was grouped by islands. The great insect occurrence on E. azorica reflects strong habitat fidelity, but only four species were clearly specialists. Our findings indicate a broadly generalist fauna. The simplicity of Azorean Laurisilva contributed to the understanding of insect-plant mechanisms in canopy forest habitats.Wiley-BlackwellRepositório da Universidade dos AçoresRibeiro, Sérvio P.Borges, Paulo A. V.Gaspar, ClaraMelo, CatarinaSerrano, Artur R. M.Amaral, JoãoAguiar, CarlosAndré, GenageQuartau, José A.2012-06-12T11:33:28Z2005-062012-06-07T14:17:14Z2005-06-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/1403engRibeiro, Sérvio P.; Borges, P.A.V.; Gaspar, Clara; Melo, Catarina; Serrano, Artur R. M.; Amaral, João; Aguiar, Carlos; André, Genage; Quartau, José A.. Canopy insect herbivores in the Azorean Laurisilva forests: key host plant species in a highly generalist insect community. "ECOGRAPHY", 28(3), 315-330, 2005.0906-7590 (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:RCAAP2022-12-20T14:29:05Zoai:repositorio.uac.pt:10400.3/1403Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:24:14.554862Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
| dc.title.none.fl_str_mv |
Canopy insect herbivores in the Azorean Laurisilva forests: key host plant species in a highly generalist insect community |
| title |
Canopy insect herbivores in the Azorean Laurisilva forests: key host plant species in a highly generalist insect community |
| spellingShingle |
Canopy insect herbivores in the Azorean Laurisilva forests: key host plant species in a highly generalist insect community Ribeiro, Sérvio P. Ecology Patterns of Diversity Laurisilva Forest Azores |
| title_short |
Canopy insect herbivores in the Azorean Laurisilva forests: key host plant species in a highly generalist insect community |
| title_full |
Canopy insect herbivores in the Azorean Laurisilva forests: key host plant species in a highly generalist insect community |
| title_fullStr |
Canopy insect herbivores in the Azorean Laurisilva forests: key host plant species in a highly generalist insect community |
| title_full_unstemmed |
Canopy insect herbivores in the Azorean Laurisilva forests: key host plant species in a highly generalist insect community |
| title_sort |
Canopy insect herbivores in the Azorean Laurisilva forests: key host plant species in a highly generalist insect community |
| author |
Ribeiro, Sérvio P. |
| author_facet |
Ribeiro, Sérvio P. Borges, Paulo A. V. Gaspar, Clara Melo, Catarina Serrano, Artur R. M. Amaral, João Aguiar, Carlos André, Genage Quartau, José A. |
| author_role |
author |
| author2 |
Borges, Paulo A. V. Gaspar, Clara Melo, Catarina Serrano, Artur R. M. Amaral, João Aguiar, Carlos André, Genage Quartau, José A. |
| author2_role |
author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Repositório da Universidade dos Açores |
| dc.contributor.author.fl_str_mv |
Ribeiro, Sérvio P. Borges, Paulo A. V. Gaspar, Clara Melo, Catarina Serrano, Artur R. M. Amaral, João Aguiar, Carlos André, Genage Quartau, José A. |
| dc.subject.por.fl_str_mv |
Ecology Patterns of Diversity Laurisilva Forest Azores |
| topic |
Ecology Patterns of Diversity Laurisilva Forest Azores |
| description |
Copyright © ECOGRAPHY 2005. |
| publishDate |
2005 |
| dc.date.none.fl_str_mv |
2005-06 2005-06-01T00:00:00Z 2012-06-12T11:33:28Z 2012-06-07T14:17:14Z |
| dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.3/1403 |
| url |
http://hdl.handle.net/10400.3/1403 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
Ribeiro, Sérvio P.; Borges, P.A.V.; Gaspar, Clara; Melo, Catarina; Serrano, Artur R. M.; Amaral, João; Aguiar, Carlos; André, Genage; Quartau, José A.. Canopy insect herbivores in the Azorean Laurisilva forests: key host plant species in a highly generalist insect community. "ECOGRAPHY", 28(3), 315-330, 2005. 0906-7590 (Print) |
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info:eu-repo/semantics/openAccess |
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openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Wiley-Blackwell |
| publisher.none.fl_str_mv |
Wiley-Blackwell |
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reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799130687987515392 |