Big fish are the best: Seed dispersal of Bactris glaucescens by the pacu fish (Piaractus mesopotamicus) in the Pantanal, Brazil

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dc.contributor.authorGaletti, Mauro [UNESP]
dc.contributor.authorDonatti, Camila I.
dc.contributor.authorPizo, Marco Aurelio
dc.contributor.authorGiacomini, Henrique C. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionStanford Univ
dc.contributor.institutionUniv Vale Rio Sinos UNISINOS
dc.date.accessioned2014-05-20T15:33:17Z
dc.date.available2014-05-20T15:33:17Z
dc.date.issued2008-05-01
dc.description.abstractWe studied the potential role as seed disperser of the pacu fish (Piaracrus mesopotamicus, Characidae) in the Pantanal of Brazil. The most important food item in the diet of the pacu in the wet season was fruits of the palm Bactris glaucescens found in the guts of 73 percent of all fishes collected (N = 70). We found a positive relationship between fish length, weight, and gape size and the number of intact seeds in their gut. Therefore, large pacus are especially important in dispersing B. glaucescens seeds within the studied system. Since the best seed dispersers are the largest fishes, which are preferred by commercial fisheries, we predict that the ongoing over fishing in freshwater ecosystems will have major impacts on the dispersal system of fish-dependent plants. We suggest that it is paramount to change the attitudes in fisheries management of fruit-eating fishes and urgent to evaluate the impact of fishing on forest regeneration.en
dc.description.affiliationUniv Estadual Paulista, Dept Ecol, Lab Biol Conservacao, BR-13506900 São Paulo, Brazil
dc.description.affiliationStanford Univ, Dept Biol Sci, Stanford, CA 94305 USA
dc.description.affiliationUniv Vale Rio Sinos UNISINOS, BR-93022900 Sao Leopoldo, RS, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Ecol, Lab Biol Conservacao, BR-13506900 São Paulo, Brazil
dc.format.extent386-389
dc.identifierhttp://dx.doi.org/10.1111/j.1744-7429.2007.00378.x
dc.identifier.citationBiotropica. Malden: Wiley-blackwell, v. 40, n. 3, p. 386-389, 2008.
dc.identifier.doi10.1111/j.1744-7429.2007.00378.x
dc.identifier.issn0006-3606
dc.identifier.lattes3431375174670630
dc.identifier.urihttp://hdl.handle.net/11449/41956
dc.identifier.wosWOS:000255986600018
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofBiotropica
dc.relation.ispartofjcr2.281
dc.relation.ispartofsjr1,168
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectArecaceaeen
dc.subjectichthyochoryen
dc.subjectmutualism disruptionen
dc.subjectseed predationen
dc.titleBig fish are the best: Seed dispersal of Bactris glaucescens by the pacu fish (Piaractus mesopotamicus) in the Pantanal, Brazilen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-815640.html
dcterms.rightsHolderWiley-blackwell
unesp.author.lattes3431375174670630
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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Artigos - Ecologia - IBRC