Florística e fitossociologia do componente arbóreo de uma floresta ribeirinha, arroio Passo das Tropas, Santa Maria, RS, Brasil

Budke, Jean Carlos; Giehl, Eduardo Luís Hettwer; Athayde, Eduardo Anversa; Eisinger, Sônia Maria; Záchia, Renato Aquino

doi:10.1590/s0102-33062004000300016

Cited by 74 publications

(86 citation statements)

References 15 publications

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“…A sua presença marcante deve-se à sua adaptação em florestas aluviais (SILVA et al, 2012). Confirmando tal afirmação, a espécie também foi registrada em outros levantamentos em matas ciliares no RS (BUDKE et al, 2004;OLIVEIRA et al, 2005;AVILA et al, 2011;BRACKMANN;FREITAS, 2013). A espécie foi seguida, com valores bem inferiores, por Nectandra megapotamica (6,63), Myrocarpus frondosus (6,00) e Annona neosalicifolia (5,74).…”

Section: Levantamento Fitossociológicounclassified

Estrutura Da Comunidade Árborea De Um Fragmento De Mata Ciliar Do Rio Taquari, Colinas, Rio Grande Do Sul

Teixeira

Pavan

Scherer

et al. 2014

RJP

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RESUMOAs matas ciliares são fundamentais na proteção de mananciais hídricos. O estudo objetivou conhecer a estrutura da comunidade arbórea de uma faixa de mata ciliar do Rio Taquari, no município de Colinas, Rio Grande do Sul. A amostragem foi realizada através da distribuição de 18 unidades amostrais (UA's) de 100 m 2 , a cada 20 metros, formando um transecto paralelo ao rio. Nas UA's foram amostrados os indivíduos com circunferência do caule à altura do peito igual ou superior a 20 cm. Foram definidos os parâmetros de densidade, frequência e dominância, absolutas e relativas, e o índice de valor de importância (IVI). A diversidade foi estimada pelos índices de Shannon (H') e equabilidade de Pielou (J). Foram amostrados 415 indivíduos, 39 espécies e 21 famílias botânicas, sendo Fabaceae a família de maior riqueza. A densidade de indivíduos por hectare foi estimada foi 2.306 ind.ha -1 . Machaerium paraguariense Hassl. apresentou os maiores valores de densidade (367 ind.ha -1 ) e também de IVI (16,0). A diversidade florística estimada pelos índices de H' e J resultou em 3,09 nats.ind. -1 e 0,84, respectivamente. Apesar de ser constituído por uma estreita faixa de mata, o fragmento estudado encontra-se em bom estado de conservação, pois apresenta altos índices de diversidade e o registro de apenas duas espécies exóticas, ambas com baixo IVI.Palavras chaves: Bacia Hidrográfica do Rio Taquari-Antas. Floresta de galeria. Florística. Formação ribeirinha. Fitossociologia. Mata ribeirinha. ABSTRACTThe riparian forests are fundamental for the protection of water springs. This study intended to investigate the community arboreal structure of a Taquari River riparian fragment, in Colinas, Rio Grande do Sul. The sample was done through the distribution of 18 sampling units of 100 m 2 , taken every 20 meters, forming a transect parallel to the river. In the units were sampled the individuals which had from the circumference of the stem to the height of the chest equal or higher than 20 cm. The parameters of density, frequency and dominance, absolute and relatives, and the index of importance value (IVI) were defined and the diversity was estimated for the Shannon (H') and equability of Pielou (J). 415 individuals, 39 species and 21 botanical families were sampled, being Fabaceae the family with higher wealth. The individuals density for hectare were estimated in 2.306 ind.ha -1 . Machaerium paraguariense Hassl showed the highest values of density (367 ind.ha -1 ) and also of IVI (16,0). The floristic

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Section: Levantamento Fitossociológicounclassified

Estrutura Da Comunidade Árborea De Um Fragmento De Mata Ciliar Do Rio Taquari, Colinas, Rio Grande Do Sul

Teixeira

Pavan

Scherer

et al. 2014

RJP

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“…The great species richness of Myrtaceae and Fabaceae has been considered a common pattern in forests in Brazil (Gandolfi et al 1995;Ivanauskas et al 1999;Durigan et al 2000;Budke et al 2004;Oliveira-Filho et al 2006). Myrtaceae is considered a family with high richness in all forests in southern Brazil (Jurinitz & Jarenkow 2003;Budke et al 2004;Giehl & Jarenkow 2008).…”

Section: Composition and Structure Of The Tree Componentmentioning

confidence: 99%

Relationships between structure of the tree component and environmental variables in a subtropical seasonal forest in the upper Uruguay River valley, Brazil

2013

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This study aimed to analyze relationships among the structure of the tree component, edaphic variables and canopy discontinuity along a toposequence in a seasonal upland (hillside) forest in southern Brazil. Soil and vegetation were sampled in 25 plots of 20 × 20 m each. We described the vegetation in terms of structure, richness and diversity, as well as by species distribution patterns. We evaluated canopy continuity, determined sloping and calculated spatial coordinates. We applied partial canonical correspondence analysis (pCCA) to determine whether species distribution correlated with environmental and spatial variables. We identified 1201 individuals belonging to 76 species within 30 families. The species with highest density and frequency were Gymnanthes concolor Spreng., Calyptranthes tricona D.Legrand, Eugenia moraviana O.Berg and Trichilia claussenii DC. The pCCAs indicated significant correlations with environmental and spatial variables. Sand content, boron content and soil density collectively explained 36.17% of the species matrix variation (total inertia), whereas the spatial variables x, y and xy 2 collectively explained 14.27%. The interaction between environmental and spatial variables explained nearly 4.5%. However, 45.05% remained unexplained, attributed to stochastic variation or unmeasured variables. Terrain morphology and canopy discontinuity had no apparent influence on richness, and changes in species distribution were correlated with sloping, which affects soil features and determines the directional distribution of some species. factors associated with topography, such as riparian forests along flood gradients Giehl & Jarenkow 2008) and hillside forests (Sühs & Budke 2011, Loregian et al. 2012. In general, studies have shown that most species have clustered spatial distribution, and that many generate dense clusters, decreasing the richness and abundance of other species in nearby areas. Sühs & Budke (2011) evaluated the distribution and association among tree species in a hillside forest, having observed greater association among species at more advanced successional stages and greater dissociation among species at distinct stages (for example, pioneer and shade-tolerant). These results highlight the role of biotic relationships, whereas relationships of facilitation and competition may often result in spatial patterns that are less dependent upon physical environment.Although these factors are extremely important on the community scale, on a regional scale, climatic factors have been identified as determinants of the distribution of plant species (Giehl & Jarenkow 2012). From this perspective, deciduous forests have been described as being strongly associated with the seasonality of precipitation and temperature This study aims to investigate the relationship between the distribution of tree species and spatial-environmental variables in a hillside forest situated on a moderate slope gradient (average slope of 25%) and that, therefore, could offer different establishment cond...

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“…Estas constituem um sistema de grande diversidade biológica (BROWN JR. 2001), servindo de corredores e refúgios para muitas espécies. Apesar disto, poucos estudos tem sido realizados neste ambiente, sobretudo no Rio Grande do Sul (BUDKE et al 2004).…”

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Borboletas (Lepidoptera, Papilionoidea e Hesperioidea) do Parque Estadual do Espinilho e entorno, Rio Grande do Sul, Brasil

Marchiori

Romanowski

2006

Rev. Bras. Zool.

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O presente trabalho apresenta uma relação das espécies de borboletas que ocorrem no Parque Estadual do Espinilho (30°11'S, 57°30'W) e entorno no extremo sudoeste do Rio Grande do Sul. Foram realizadas quatro expedições a campo, com duração de cinco dias cada, entre março de 2003 e janeiro de 2004. As amostragens contemplaram áreas com vegetação de Savana Estépica Parque e Mata Ciliar dentro dos limites do parque e entorno. Foi elaborada uma listagem com 97 espécies de borboletas, havendo 10 novos registros para o Rio Grande do Sul.

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Florística e fitossociologia do componente arbóreo de uma floresta ribeirinha, arroio Passo das Tropas, Santa Maria, RS, Brasil

Cited by 74 publications

References 15 publications

Estrutura Da Comunidade Árborea De Um Fragmento De Mata Ciliar Do Rio Taquari, Colinas, Rio Grande Do Sul

Estrutura Da Comunidade Árborea De Um Fragmento De Mata Ciliar Do Rio Taquari, Colinas, Rio Grande Do Sul

Relationships between structure of the tree component and environmental variables in a subtropical seasonal forest in the upper Uruguay River valley, Brazil

Borboletas (Lepidoptera, Papilionoidea e Hesperioidea) do Parque Estadual do Espinilho e entorno, Rio Grande do Sul, Brasil

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