Seasonal variation in the fate of seeds under contrasting logging regimes

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dc.contributor.authorFleury, Marina [UNESP]
dc.contributor.authorRodrigues, Ricardo R.
dc.contributor.authorCouto, Hilton T. Z. do
dc.contributor.authorGaletti, Mauro [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-12-03T13:07:08Z
dc.date.available2014-12-03T13:07:08Z
dc.date.issued2014-03-10
dc.description.abstractSeed predators and dispersers may drive the speed and structure of forest regeneration in natural ecosystems. Rodents and ants prey upon and disperse seeds, yet empirical studies on the magnitude of these effects are lacking. Here, we examined the role of ants and rodents on seed predation in 4 plant species in a successional gradient on a tropical rainforest island. We found that (1) seeds are mostly consumed rather than dispersed; (2) rates of seed predation vary by habitat, season, and species; (3) seed size, shape, and hardness do not affect the probability of being depredated. Rodents were responsible for 70% of seed predation and were negligible (0.14%) seed dispersers, whereas ants were responsible for only 2% of seed predation and for no dispersal. We detected seasonal and habitat effects on seed loss, with higher seed predation occurring during the wet season and in old-growth forests. In the absence of predators regulating seed-consumer populations, the densities of these resilient animals explode to the detriment of natural regeneration and may reduce diversity and carrying capacity for consumers and eventually lead to ecological meltdown.en
dc.description.affiliationUniv Estadual Paulista, Dept Ecol, Sao Paulo, Brazil
dc.description.affiliationUniv Sao Paulo, USP ESALQ, Dept Ciencias Biol, Lab Ecol & Restauracao Florestal, Sao Paulo, Brazil
dc.description.affiliationUSP ESALQ, Dept Ciencias Florestais, Lab Metodos Quantitat, Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Ecol, Sao Paulo, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2004/13230-5
dc.description.sponsorshipIdFAPESP: 2005/55093-7
dc.format.extent8
dc.identifierhttp://dx.doi.org/10.1371/journal.pone.0090060
dc.identifier.citationPlos One. San Francisco: Public Library Science, v. 9, n. 3, 8 p., 2014.
dc.identifier.doi10.1371/journal.pone.0090060
dc.identifier.fileWOS000332839300016.pdf
dc.identifier.issn1932-6203
dc.identifier.lattes3431375174670630
dc.identifier.urihttp://hdl.handle.net/11449/111275
dc.identifier.wosWOS:000332839300016
dc.language.isoeng
dc.publisherPublic Library Science
dc.relation.ispartofPLOS ONE
dc.relation.ispartofjcr2.766
dc.relation.ispartofsjr1,164
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleSeasonal variation in the fate of seeds under contrasting logging regimesen
dc.typeArtigo
dcterms.rightsHolderPublic Library Science
unesp.author.lattes3431375174670630
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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Artigos - Ecologia - IBRC