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dc.contributor.authorSantos, Gilberto M. de M.
dc.contributor.authorAguiar, Candida M. L.
dc.contributor.authorGenini, Julieta [UNESP]
dc.contributor.authorMartins, Celso F.
dc.contributor.authorZanella, Fernando C. V.
dc.contributor.authorMello, Marco A. R.
dc.identifier.citationBiological Invasions. Dordrecht: Springer, v. 14, n. 11, p. 2369-2378, 2012.
dc.description.abstractThe Africanized honeybee Apis mellifera (AHB) is an invasive species spread over all Brazilian biomes, which has negative impacts on native bee populations, but whose impacts on native plants are still controversial. In order to understand how its impacts extend to the pollination service at the community level, we studied the AHB and its interactions in a multi-species context using network theory. We analyzed six pollination networks from the Brazilian Caatinga, a xeric biome where beekeeping is increasing very quickly. The AHB occupied a central position in all networks, as it was responsible for a large share of the interactions observed (14 +/- A 7 %) and bound together different modules. By simulating the removal of the AHB from each network, we observed no effects on connectance, but a strong decrease in nestedness (-23 +/- A 19 %) and an increase in modularity (8 +/- A 5 %). The robustness of networks to cumulative random extinctions was on average not affected. In summary, our evidence points out that the AHB induces significant changes in the structure of native pollination networks, mainly by making them more cohesive and monopolizing many interactions. Although the AHB did not affect network robustness, its net impact on the pollination service may be negative, because this invasive species is very generalistic and may not be an efficient pollinator for some native plants.en
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado da Bahia (FAPESB)
dc.description.sponsorshipAlexander von Humboldt Foundation
dc.relation.ispartofBiological Invasions
dc.sourceWeb of Science
dc.subjectApis melliferaen
dc.subjectComplex networksen
dc.subjectEcosystem servicesen
dc.titleInvasive Africanized honeybees change the structure of native pollination networks in Brazilen
dc.contributor.institutionUniv Ulm
dc.contributor.institutionUniv Estadual Feira de Santana
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Federal da Paraíba (UFPB)
dc.contributor.institutionUniversidade Federal de Campina Grande (UFCG)
dc.description.affiliationUniv Ulm, Inst Expt Okol, D-89069 Ulm, Germany
dc.description.affiliationUniv Estadual Feira de Santana, Dept Ciencias Biol, BR-44036900 Feira de Santana, BA, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Bot, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUniversidade Federal da Paraíba (UFPB), Dept Sistemat & Ecol CCEN, BR-58059900 Joao Pessoa, PB, Brazil
dc.description.affiliationUniv Fed Campina Grande, Dept Engn Florestal, BR-58700970 Patos de Minas, PB, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Bot, BR-13506900 Rio Claro, SP, Brazil
dc.rights.accessRightsAcesso restrito
dc.description.sponsorshipIdCNPq: 309711/2009-6
dc.description.sponsorshipIdCNPq: 501850/2009-0
dc.description.sponsorshipIdCNPq: 307687/2008-2
dc.description.sponsorshipIdAlexander von Humboldt Foundation: 1134644
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Biociências, Rio Claropt
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