2005
DOI: 10.1590/s1676-06032005000300007
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Estrutura e padrão espacial das populações de Bactris setosa Mart e B. hatschbachii Noblick ex A. Hend (Arecaceae) em um gradiente altitudinal, Ubatuba (SP)

Abstract: A biology study of Bactris setosa Mart and B. hatschbachii Noblick ex A. Hend was made with the aim of obtaining information about structure and spatial pattern of Bactris palm genus in different stretches in atlantic rain forest in Ubatuba-SP, to asses the population of these species in the altitude gradient. Samples were taken in six altitudes (0 m -on sea level, 100, 200, 400, 600 and 850 m) in round plots of 100 m 2 . In these plots, the two species were measured. Populations were divided into five size cl… Show more

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Cited by 17 publications
(14 citation statements)
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“…The Chi-square goodness-of-fit test was used to assess significant differences in the seedling/adult ratio among the three populations. Height values were divided among classes of 0.5-meter-intervals, following an adaptation of Monteiro & Fisch (2005). Differences in height class distribution among the three landscape units were assessed using Kolmogorov-Smirnov test.…”
Section: Discussionmentioning
confidence: 99%
“…The Chi-square goodness-of-fit test was used to assess significant differences in the seedling/adult ratio among the three populations. Height values were divided among classes of 0.5-meter-intervals, following an adaptation of Monteiro & Fisch (2005). Differences in height class distribution among the three landscape units were assessed using Kolmogorov-Smirnov test.…”
Section: Discussionmentioning
confidence: 99%
“…Diferenças na estrutura e na composição de florestas ao longo de um gradiente de altitude têm sido documentadas em diversos trabalhos ao redor do globo, sendo essas diferenças geralmente atribuídas ou a variações de microclima (Odland & Birks 1999, Monteiro & Fisch 2005, ou irradiação solar (Proctor et al 1988), ou topografia e/ou solo (Rodrigues et al 1989, Oliveira Filho et al 1994, Yamakura et al 1995, Oliveira Filho et al 1998, Takyu et al 2002a-b, Martins et al 2003, Aiba et al 2004, Carvalho et al 2005, Cielo Filho et al 2007, ou à altitude (Lieberman et al 1985, Sruatek & Kolbek 1994, Lieberman et al 1996, Aiba & Kitayama 1999, Sanchez 2001. Em uma escala local, mecanismos biológicos têm sido reconhecidos como preponderantes para a biodiversidade, enquanto em na macro-escala fatores climáticos ganham importância (Whittaker et al 2001).…”
Section: Introductionunclassified
“…Assim, além das características macromorfológicas, as medidas quantitativas podem ser utilizadas como auxiliares, complementando a distinção de estádios ontogenéticos em Syagrus romanzoffiana. Progressivamente, o tamanho necessário para passar ao estádio seguinte aumenta durante a ontogenia, sendo que o tamanho, notadamente a altura, tem sido utilizado como característica para estruturar populações de palmeiras (Bovi et al 1988;Reis et al 1996;Bernal 1998;Monteiro & Fisch 2005).…”
Section: Resultsunclassified