Seed rain in areas with and without bamboo dominance within an urban fragment of the Atlantic Forest

dc.creatorGrombone-Guaratini, Maria Tereza
dc.creatorAlves, Luciana Ferreira
dc.creatorVinha, Daniella
dc.creatorFranco, Geraldo Antônio Daher Corrêa
dc.date2014-03-01
dc.date2015-12-03T13:31:53Z
dc.date2015-12-03T13:31:53Z
dc.date.accessioned2018-03-29T01:25:41Z
dc.date.available2018-03-29T01:25:41Z
dc.identifierActa Botanica Brasilica. Sociedade Botânica do Brasil, v. 28, n. 1, p. 76-85, 2014.
dc.identifier0102-3306
dc.identifierS0102-33062014000100008
dc.identifier10.1590/S0102-33062014000100008
dc.identifierhttp://dx.doi.org/10.1590/S0102-33062014000100008
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000100008
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/24840
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/202677
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1302910
dc.descriptionUnderstanding the flow of diaspores is fundamental for determining plant population dynamics in a particular habitat, and a lack of seeds is a limiting factor in forest regeneration, especially in isolated forest fragments. Bamboo dominance affects forest structure and dynamics by suppressing or delaying the recruitment of and colonization by tree species as well as by inhibiting the survival and growth of adult trees. The goal of the present study was to determine whether dominance of the bamboo species Aulonemia aristulata (Döll) McClure in the forest understory influences species abundance and composition. We examined the seed rain at two noncontiguous sites (1.5 km apart) within an urban forest fragment, with and without bamboo dominance (BD+ and BD- areas, respectively). Sixty seed traps (0.5 m², with a 1-mm mesh) were set in the BD+ and BD- areas, and the seed rain was sampled from January to December 2007. Diaspores were classified according to dispersal syndrome, growth form and functional type of the species to which they belonged. There were significant differences between the two areas in terms of seed density, species diversity and dispersal syndrome. The BD+ area showed greater seed density and species diversity. In both areas, seed distribution was limited primarily by impaired dispersal. Bamboo dominance and low tree density resulted in fewer propagules in the seed rain. Our results suggest that low availability of seeds in the rain does not promote the maintenance of a degraded state, characterized by the presence of bamboo.
dc.description76
dc.description85
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageen
dc.publisherSociedade Botânica do Brasil
dc.relationActa Botanica Brasilica
dc.rightsaberto
dc.sourceSciELO
dc.subjectAulonemia aristulata
dc.subjectdispersal
dc.subjecthuman activity
dc.subjectnatural regeneration
dc.titleSeed rain in areas with and without bamboo dominance within an urban fragment of the Atlantic Forest
dc.typeArtículos de revistas


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