Local extinctions of obligate frugivores and patch size reduction disrupt the structure of seed dispersal networks

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dc.contributor.authorBomfim, Jamille de Assis
dc.contributor.authorGuimaraes, Paulo R.
dc.contributor.authorPeres, Carlos A.
dc.contributor.authorCarvalho, Gustavo [UNESP]
dc.contributor.authorCazetta, Eliana
dc.contributor.institutionUniv Estadual Santa Cruz
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniv East Anglia
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2019-10-03T18:20:00Z
dc.date.available2019-10-03T18:20:00Z
dc.date.issued2018-11-01
dc.description.abstractA central problem in ecology is to understand how human impacts affect plant-animal interactions that lead to effective seed dispersal services for plant communities. Seed dispersal services are the outcome of plant-frugivore interactions that often form local networks of interacting species. Recent work has shown that some frugivorous bird species are more critical to network organization than others. Here, we explore how patch size and the potential local extinctions of obligate frugivorous birds affect the reorganization of seed dispersal networks. We examined the structure of 20 empirical seed dispersal networks documented across tropical avian assemblages occupying widely variable habitat patch sizes, a surrogate of the amount of remaining habitat. Networks within small forest patches consistently supported both lower plant and bird species richness. Forest patch size was positively associated with nestedness, indicating that reductions in patch size disrupted the nested organization of seed dispersal networks. Obligate frugivores, especially large-bodied species, were almost entirely absent from small forest patches. Analysis at the species level showed that obligate frugivores formed the core of interacting species, connecting species within a given seed dispersal network. Our combined results revealed that patch size reduction erodes frugivorous bird diversity, thereby affecting the integrity of seed dispersal networks. We highlight the importance of conserving large forest patches to maintain tropical forest functionality.en
dc.description.affiliationUniv Estadual Santa Cruz, Lab Ecol Aplicada & Conservacao, Ilheus, BA, Brazil
dc.description.affiliationUniv Estadual Santa Cruz, Programa Posgrad Ecol & Conservacao Biodiversidad, Ilheus, BA, Brazil
dc.description.affiliationUniv Sao Paulo, Inst Biociencias, Dept Ecol, Sao Paulo, Brazil
dc.description.affiliationUniv East Anglia, Sch Environm Sci, Ctr Ecol Evolut & Conservat, Norwich, Norfolk, England
dc.description.affiliationUniv Estadual Paulista, Dept Bot, Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Bot, Sao Paulo, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipFAPESB
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2009/54422-8
dc.description.sponsorshipIdFAPESB: 1492/2013
dc.description.sponsorshipIdCAPES: 004-2012
dc.description.sponsorshipIdFAPESP: 2015/14292-9
dc.description.sponsorshipIdFAPESP: 2017/08406-7
dc.description.sponsorshipIdCNPq: 305812/2015-7
dc.format.extent1899-1909
dc.identifierhttp://dx.doi.org/10.1111/ecog.03592
dc.identifier.citationEcography. Hoboken: Wiley, v. 41, n. 11, p. 1899-1909, 2018.
dc.identifier.doi10.1111/ecog.03592
dc.identifier.issn0906-7590
dc.identifier.urihttp://hdl.handle.net/11449/184104
dc.identifier.wosWOS:000449886600014
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofEcography
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectmutualistic networks
dc.subjectfrugivory
dc.subjectpatch size
dc.titleLocal extinctions of obligate frugivores and patch size reduction disrupt the structure of seed dispersal networksen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-Blackwell
unesp.author.orcid0000-0002-1588-8765[3]
unesp.author.orcid0000-0002-2209-2554[5]

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