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vol.45 número1Phacus multifacies sp. nov., uma nova Euglenophyceae do Estado do Rio Grande do Sul, Sul do Brasil índice de autoresíndice de assuntospesquisa de artigos
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Hoehnea

versão impressa ISSN 0073-2877versão On-line ISSN 2236-8906

Resumo

LUCHETA, Fabiane et al. Phytosociological study of a riverine forest remnant from Taquari river, State of Rio Grande do Sul, Brazil. Hoehnea [online]. 2018, vol.45, n.1, pp.149-158. ISSN 2236-8906.  https://doi.org/10.1590/2236-8906-79/2017.

Aiming to characterize the structure of the arboreal community in a riverine forest remnant of the Taquari river, State of Rio Grande do Sul, 42 sampling units of 100 m2 (10 × 10 m) were located. Phytosociological parameters were also assessed and the indexes of Shannon diversity (H') and Pielou evenness (J) were evaluated. A total of 39 species, 21 families, 2.83 nats ind-1 for H' and 0.77 for J were recorded. Among the species found, the endemic Callisthene inundata O.L. Bueno, A.D. Nilson & R.G. Magalh. and Picrasma crenata (Vell.) Engl. are included in the list of endangered species. The density found was of 1,557.14 ind ha-1. Luehea divaricata Mart. and Lonchocarpus nitidus Benth. showed the highest indexes of importance values. Besides contributing to the knowledge of species distribution and community structure, this study points out the need for conservation of existing native forest remnants.

Palavras-chave : alien species; arboreal community; endemic species; riparian vegetation; Taquari-Antas river basin.

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