Ecologia populacional de Paepalanthus polyanthus (Bong.) Kunth: variação temporal da distribuição espacial
| Autor: | Scherer, Karla Zanenga, Castellani, Tânia Tarabini |
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| Jazyk: | portugalština |
| Rok vydání: | 2004 |
| Zdroj: | Biotemas; v. 17 n. 2 (2004); 27-45 Biotemas Universidade Federal de Santa Catarina (UFSC) instacron:UFSC |
| ISSN: | 2175-7925 0103-1643 |
| Popis: | Population ecology of Paepalanthus polyanthus (Bong.) Kunth: temporal variation in the pattern of spatial distribution. The temporal variation in density and pattern of spatial distribution of Paepalanthus polyanthus (Bong.) Kunth (Eriocaulaceae) were evaluated at a determinate sand dune. This study was carried out over a period of five years, at three permanent plots of 25 m2 in a sand dune slack at Joaquina Beach, Florianópolis, SC, Brazil. There were strong density fluctuations throughout these years. In areas 1, 2 and 3, the densities changed from 10.4, 2.2 and 1.8 plants/m2 in December 1986 to 75.8, 11.4 and 45.6 plants/m 2 in December 1991. Area 3, situated on an elevated site, presented greater variation in density, with no live plants in December 1989 and 102.2 plants/m2 at the recruitment observed in May 1990. Despite these density fluctuations, the pattern of spatial distribution was always aggregated (Id > 1, P 1, P |
| Databáze: | OpenAIRE |
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