Índices de sítios para &lt;i&gt;Hovenia dulcis &lt;/i&gt;Thunberg na região central do estado do Rio Grande do Sul, Brasil

Selle, Gerson Luiz; Vuaden, Elisabete; Albernard, Luiz Antônio Jacques de; Braz, E. M.

doi:10.5902/19805098896

Cited by 11 publications

(13 citation statements)

References 9 publications

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“…The species has been extensively planted in rural properties for wood since its introduction (Selle 2009), as well as for shade over cultivation areas and pasture, wind-breaks, sawmills, and energy production (Carvalho 1994a). Hovenia dulcis can change the structure and composition of plant communities in seasonal, dense, and mixed ombrophilous forests (Bardall et al 2004;Schaff et al 2006;Boeni 2011).…”

Section: Study Speciesmentioning

confidence: 99%

Community structure, succession and invasibility in a seasonal deciduous forest in southern Brazil

et al. 2014

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Majority of invasive trees colonize grasslands, shrublands, and temperate forests. Hovenia dulcis is an exception, because it is one of the most pervasive invaders in Brazilian subtropical forests where it has changed their structure and composition. This study has aimed to identify the clues for its success by defining the structural and functional characteristics of plant communities in different stages of succession with and without H. dulcis. Following the general assumptions of invasion ecology, we expected that H. dulcis establishment and invasion success would be significantly higher in early successional communities, with high resource availability and low species richness and diversity, as well as low functional diversity. Contrary to this hypothesis, no differences were found between plant communities invaded and non-invaded by H. dulcis at three different succession stages. No relationship was found between species richness and diversity and functional diversity, with respect to invasibility along the successional gradient. Hovenia dulcis is strongly associated with semi-open vegetation, where the species was found in higher density. The invasion of open vegetation is more recent, providing evidence of the species's ability to invade plant communities in early successional stages. We concluded that the colonization by H. dulcis was associated with forest openness, but the species is also able to colonize semiElectronic supplementary material The online version of this article (

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Section: Study Speciesmentioning

confidence: 99%

Community structure, succession and invasibility in a seasonal deciduous forest in southern Brazil

et al. 2014

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“…The vegetation has been regenerating since the park was established. Hovenia dulcis was introduced in the study region in the second half of the 20th Century [37], and intensively cultivated after the 1980s, when agroindustries in the region promoted its use in pig and chicken farms [39]. Since its introduction, H. dulcis has been extensively planted in rural properties for wood [39], shade for cultivation and pasture areas, hedges, and energy production [27].…”

Section: Study Areamentioning

confidence: 99%

Limited Seed Dispersal May Explain Differences in Forest Colonization by the Japanese Raisin Tree (Hovenia Dulcis Thunb.), an Invasive Alien Tree in Southern Brazil

Dechoum

Rejmánek

Castellani

et al. 2015

Tropical Conservation Science

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In South American forests, the Japanese raisin tree (Hovenia dulcis Thunb.) is an invasive tree that produces capsuled fruits attached to peduncles that grow thick and fleshy when ripe. Several frugivorous birds are reported to be dispersal agents of H. dulcis. The spread of H. dulcis propagules to non-invaded sites was evaluated at a local spatial scale in deciduous forests in Southern Brazil, in order to propose management strategies to prevent the arrival of propagules of such species in non-invaded sites. Seed arrival via birds was assessed by five 0.6 x 0.6 m seed traps in each of the 10 x 10 m plots in noninvaded sites at different distances from invaded sites. Seed arrival was also compared between control plots and plots where all H. dulcis trees were felled within a 30m radius from the center of plots. A limitation in short distance seed dispersal by birds was observed in the study area. There was a negative exponential relationship between number of seeds and distance from H. dulcis trees to non-invaded sites, and a positive exponential dependence of the number of seeds found in seed traps on the basal area of H. dulcis. Felling H. dulcis trees was effective in reducing the arrival of seeds in non-invaded sites, resulting in significantly fewer seeds in managed plots than in control plots.

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“…Alguns autores brasileiros empregaram esse método para ajustar a linha de máxima densidade, podendose citar, entre eles, Schneider et al (2008), Selle (2009), Thomas (2009) e Téo et al (2008.…”

Section: Meyer Ea Et Alunclassified

Ajuste do modelo de Reineke para estimativa da linha de máxima densidade na Floresta Estacional Decidual no Rio Grande do Sul

2013

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RESUMO -O objetivo deste trabalho foi estudar a relação entre a densidade de árvores por hectare e o diâmetro médio de uma Floresta Estacional Decidual, bem como ajustar o modelo Reineke para descrever esse comportamento, comparando o desempenho de diferentes métodos. A área de estudo localiza-se no Município de Silveira Martins, na região central do Rio Grande do Sul, e encontra-se em estágio inicial de sucessão, após o uso agrícola. As informações referentes ao número de árvores por hectare e ao diâmetro médio foram obtidas por meio do método de densidade pontual proposto por Spurr. As amostras foram tomadas nos estágios iniciais de uma floresta secundária, escolhendo-se áreas onde predominava o camboatá-vermelho (Cupania vernalis). Como as florestas naturais apresentam espaçamento irregular, a densidade é bastante variável. Assim, para selecionar apenas parcelas em alta densidade, foram escolhidas áreas onde se verificava a ocorrência de indivíduos mortos. Foram testados diferentes métodos para estimar o limite superior da linha de autodesbaste: a análise de regressão (para todos os dados e densidade relativa maior que 60%), corrigindo o intercepto para que os resíduos fossem negativos; o ajuste manual; o de densidade relativa (DR>90%); e a análise de fronteira estocástica. O método que melhor estimou a máxima densidade foi a análise de regressão com dados de no mínimo 60% da densidade máxima, obtendo-se um coeficiente angular de -1,563 para o modelo de Reineke. Não houve diferença significativa entre as potências fornecidas pelos diferentes métodos.Palavras-chave: Autodesbaste; Densidade pontual; Competição. ADJUSTMENT OF REINEKE MODEL TO ESTIMATE THE LINE OF MAXIMUN DENSITY IN SEASONAL DECIDUOUS FOREST -RS

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Índices de sítios para <i>Hovenia dulcis </i>Thunberg na região central do estado do Rio Grande do Sul, Brasil

Cited by 11 publications

References 9 publications

Community structure, succession and invasibility in a seasonal deciduous forest in southern Brazil

Community structure, succession and invasibility in a seasonal deciduous forest in southern Brazil

Limited Seed Dispersal May Explain Differences in Forest Colonization by the Japanese Raisin Tree (Hovenia Dulcis Thunb.), an Invasive Alien Tree in Southern Brazil

Ajuste do modelo de Reineke para estimativa da linha de máxima densidade na Floresta Estacional Decidual no Rio Grande do Sul

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