Bromeliad architectural complexity and vertical distribution predict spider abundance and richness

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dc.contributor.authorGoncalves-Souza, Thiago [UNESP]
dc.contributor.authorAlmeida-Neto, Mario
dc.contributor.authorRomero, Gustavo Q.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de Brasília (UnB)
dc.date.accessioned2014-05-20T14:03:48Z
dc.date.available2014-05-20T14:03:48Z
dc.date.issued2011-06-01
dc.description.abstractHabitat complexity is a main predictor of the distribution of arthropods on vegetation. However, it remains poorly known whether plant architecture and fine-scale spatial distribution affect the species richness and composition of associated arthropod guilds. In this study, we extensively sampled bromeliad species with a variety of rosette architectures in a megadiversity region. The aims were to investigate whether (i) possible differences in spider species composition among bromeliad species are related to the distinct architectures of the plants, and (ii) bromeliad architectural complexity (an intrinsic feature) and vertical distribution (an extrinsic feature) are good predictors of spider abundance and richness. Contrary to our expectations, spider species composition did not vary significantly among bromeliad species with different architectures. We found a positive effect of the mean number of leaves on spider abundance and species richness, but it occurred indirectly through spider abundance; factoring out the indirect effect revealed a negative effect of leaf number on species richness. Bromeliad species with wider vertical distributions harboured more spider species. Our results suggest that the dominance of a few spider species and reduced space for orb-web spiders to attach their webs are the main explanations for lower spider richness on bromeliad species with higher architectural complexity. Our findings highlight the importance of both intrinsic and extrinsic plant features as co-determinants of predator arthropod diversity.en
dc.description.affiliationUniv Estadual Paulista, UNESP, Dept Zool & Bot, Programa Posgrad Biol Anim,IBILCE, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.description.affiliationUniversidade de Brasilia (UnB), Inst Ciencias Biol, Dept Ecol, Brasilia, DF, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Dept Zool & Bot, Programa Posgrad Biol Anim,IBILCE, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipGQR
dc.description.sponsorshipAnimal Biology (UNESP/SJRP)
dc.description.sponsorshipIdFAPESP: 06/59410-0
dc.description.sponsorshipIdGQR: 04/13658-5
dc.description.sponsorshipIdGQR: 05/51421-0
dc.format.extent476-484
dc.identifierhttp://dx.doi.org/10.1111/j.1442-9993.2010.02177.x
dc.identifier.citationAustral Ecology. Malden: Wiley-blackwell, v. 36, n. 4, p. 476-484, 2011.
dc.identifier.doi10.1111/j.1442-9993.2010.02177.x
dc.identifier.issn1442-9985
dc.identifier.urihttp://hdl.handle.net/11449/22439
dc.identifier.wosWOS:000291055400013
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofAustral Ecology
dc.relation.ispartofjcr1.730
dc.relation.ispartofsjr0,891
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectBromeliad-dwelling spideren
dc.subjectCommunity structureen
dc.subjecthabitat heterogeneity hypothesisen
dc.subjectPlant architectureen
dc.subjectspatial distributionen
dc.subjecttropical rainforesten
dc.titleBromeliad architectural complexity and vertical distribution predict spider abundance and richnessen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-blackwell
unesp.author.orcid0000-0003-3736-4759[3]
unesp.author.orcid0000-0002-2161-2968[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Pretopt

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Artigos - Zoologia e Botânica - IBILCE