Data/hora: 10/06/2024 03:46:18

Provedor de dados: | 3
País: | Brazil

Título:

Effects of cutting disturbance in Schoenoplectus californicus (C.A. Mey.) Soják on the benthic macroinvertebrates - doi: 10.4025/actascibiolsci.v33i1.6383

Effects of cutting disturbance in Schoenoplectus californicus (C.A. Mey.) Soják on the benthic macroinvertebrates - doi: 10.4025/actascibiolsci.v33i1.6383

Autores: | Silveira, Thiago Cesar Lima; UFRGS; Rodrigues, Gilberto Gonçalves; UFBA; Souza, Gabriela Peixoto Coelho de; UFRGS; Würdig, Norma Luiza; UFRGS.
Data: | 2011-02-14
Ano: | 2011
Palavras-chave: | 2.00.00.00-6; 2.05.00.00-9; Disturbance; Bioindication; Vegetal management; Schoenoplectus californicus; Aquatic macrophyte; Non-wood products Ecologia Disturbance; Bioindication; Vegetal management; Schoenoplectus californicus; Aquatic macrophyte; Non-wood products.
Resumo: | Lagoons are considered protected areas because these systems play a key ecological role. However, the extraction of macrophyte Schoenoplectus californicus is held for manufacture of handcrafts, being an alternative income for riverbank communities. This study evaluated the impact of S. californicus experimental cutting on benthic macroinvertebrates trough a field experiment. Macroinvertebrates were sampled at 1, 12, 26 and 60 days after the macrophyte cutting in demarked plots (1 m²), as well at control plots. The families number was not statistically different (ANOVA, p &gt; 0.05), but the total density of invertebrates, and the density of Ceratopogonidae were significant (ANOVA, p &lt; 0.05) for interaction between sampling date and treatment. A Principal Components Analysis identified that the level of the water column was the variable that most influenced the variation between the samples gathered in the experiment. We concluded that the cutting of S. californicus, in this area, as the intensity of the cut held, did not affect considerably the aquatic macroinvertebrates. The results suggest that the small-scale extractivism in these regions carries little effect because the fauna of adjacent areas probably can quickly colonize the disturbed areas.
Idioma: | Português

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/6383

10.4025/actascibiolsci.v33i1.6383

Editor: | Universidade Estadual De Maringá

Formato:

application/pdf

application/pdf

Fonte:

Acta Scientiarum. Biological Sciences; v. 33, n. 1 (2011); 31-39

Acta Scientiarum. Biological Sciences; v. 33, n. 1 (2011); 31-39

Fonte:

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DECLARAÇÃO DE ORIGINALIDADE E CESSÃO DE DIREITOS AUTORAIS  Declaro que o presente artigo é original, não tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional, quer seja em parte ou em sua totalidade. Declaro, ainda, que uma vez publicado na revista Acta Scientiarum. Biological Sciences, editada pela Universidade Estadual de Maringá, o mesmo jamais será submetido por mim ou por qualquer um dos demais co-autores a qualquer outro meio de divulgação científica. Através deste instrumento, em meu nome e em nome dos demais co-autores, porventura existentes, cedo os direitos autorais do referido artigo à Universidade Estadual de Maringá e declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias (Nº9609, de 19/02/98).