Granivorous birds as potentially important post-dispersal seed predators in a Brazilian forest fragment

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dc.contributor.authorPizo, M. A.
dc.contributor.authorVieira, E. M.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Vale Rio Sinos
dc.date.accessioned2014-02-26T17:20:02Z
dc.date.accessioned2014-05-20T13:56:36Z
dc.date.available2014-02-26T17:20:02Z
dc.date.available2014-05-20T13:56:36Z
dc.date.issued2004-09-01
dc.description.abstractIn tropical forests, rodents exert a prominent role as post-dispersal seed predators, while other vertebrates apparently have a minor effect on seed predation. In some forest fragments in southeast Brazil, however, the density of rodents is unusually low, whereas terrestrial granivorous birds are abundant. In this study, we used seeds of a second-growth tree (Croton priscus, Euphorbiaceae) to investigate experimentally the relative importance of rodents and birds as seed predators in a forest fragment. We also estimated the density of terrestrial granivorous birds and trapped small mammals. Results indicate that, as a consequence of decreased rodent population and increased bird abundance, the latter are at least as important as the former as the main post-dispersal seed predators of C priscus. We interpret such apparent imbalance in the interaction between C priscus and their seed predators as a possible consequence of forest fragmentation.en
dc.description.affiliationUniv Estadual Paulista, Dept Bot IB, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUniv Vale Rio Sinos, Ctr Ciências Saude, Ctr 2, Lab Ecol Mamiferos, BR-93022000 Sao Leopoldo, RS, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Bot IB, BR-13506900 Rio Claro, SP, Brazil
dc.format.extent417-423
dc.identifierhttp://dx.doi.org/10.1111/j.1744-7429.2004.tb00336.x
dc.identifier.citationBiotropica. Lawrence: Associação Tropical Biology Inc., v. 36, n. 3, p. 417-423, 2004.
dc.identifier.doi10.1111/j.1744-7429.2004.tb00336.x
dc.identifier.issn0006-3606
dc.identifier.urihttp://hdl.handle.net/11449/20230
dc.identifier.wosWOS:000223742800017
dc.language.isoeng
dc.publisherAssociação Tropical Biology Inc
dc.relation.ispartofBiotropica
dc.relation.ispartofjcr2.281
dc.relation.ispartofsjr1,168
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectAtlantic Forestpt
dc.subjectBrazilpt
dc.subjectCroton priscuspt
dc.subjectforest fragmentationpt
dc.subjectseed predationpt
dc.titleGranivorous birds as potentially important post-dispersal seed predators in a Brazilian forest fragmenten
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderAssociação Tropical Biology Inc
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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