Phenology, sex ratio, and spatial distribution among dioecious species of Trichilia (Meliaceae)

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dc.contributor.authorMorellato, LPC
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-02-26T17:19:42Z
dc.date.accessioned2014-05-20T13:56:35Z
dc.date.available2014-02-26T17:19:42Z
dc.date.available2014-05-20T13:56:35Z
dc.date.issued2004-07-01
dc.description.abstractThe flowering, sex ratio, and spatial distribution of four dioecious species of Trichilia (Meliaceae) were studied in a semi-deciduous forest in southeastern Brazil. All reproductive trees (T. clausseni, T. pallida and T. catigua) with dbh greater than or equal to5 cm within a 1-ha plot were collected, sexed, mapped and, for individuals of each species, the distances to the nearest neighbour of the same and opposite sex were measured. For the shrub species T elegans (dbh <5 cm), all reproductive individuals were sampled randomly in 10 samples of 10 x 10 m. The reproductive phenology was observed at weekly to monthly intervals from May 1988 to January 1990. The species are strictly dioecious, did not present any sex-mixed trees or sex switching during the study, and sex ratio did not differ significantly from 1:1. The size distributions and the relative size variation were not significantly different. between sexes. There was no significant segregation or clumping between individuals of either sex and no fruit production without pollination. Onset of flowering and flowering peak were synchronous between male and female plants for all species studied. Flower synchrony was related to outcrossing and pollinator attraction rather than climatic factors.en
dc.description.affiliationUniv Estadual Paulista, Dept Bot, Plant Phenol & Seed Dispersal Grp, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Bot, Plant Phenol & Seed Dispersal Grp, BR-13506900 Rio Claro, SP, Brazil
dc.format.extent491-497
dc.identifierhttp://dx.doi.org/10.1055/s-2004-817910
dc.identifier.citationPlant Biology. Stuttgart: Georg Thieme Verlag Kg, v. 6, n. 4, p. 491-497, 2004.
dc.identifier.doi10.1055/s-2004-817910
dc.identifier.issn1435-8603
dc.identifier.lattes1012217731137451
dc.identifier.urihttp://hdl.handle.net/11449/20229
dc.identifier.wosWOS:000222860400014
dc.language.isoeng
dc.publisherGeorg Thieme Verlag Kg
dc.relation.ispartofPlant Biology
dc.relation.ispartofjcr2.156
dc.relation.ispartofsjr0,939
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectdioecypt
dc.subjectMeliaceaept
dc.subjectphenologypt
dc.subjectsex ratiopt
dc.subjectspatial distributionpt
dc.subjectTrichiliapt
dc.subjecttropical forestpt
dc.titlePhenology, sex ratio, and spatial distribution among dioecious species of Trichilia (Meliaceae)en
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderGeorg Thieme Verlag Kg
unesp.author.lattes1012217731137451
unesp.author.orcid0000-0001-5265-8988[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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Artigos - Botânica - IBRC