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| Natura: | Artículo científico |
| Lingua: | en |
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Academia Brasileira de Ciências
2010
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=32717619011 |
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Sommario:
- Population structure of Rudgea parquioides (Rubiaceae), a shade-tolerant shrub species, in Southern Brazil Fernanda C.G. Cardoso Ana P.B. Salvalaggio Márcia C.M. Marques Multidisciplinaria (Ciencias Naturales y Exactas) Allometry understorey Araucaria forest size distribution subtropical forest The expectations that shade-tolerant forest species show 1) a population structure composed by a high amount of small individuals, and 2) biomass allocation for diameter higher than for height growth, were tested for Rudgea parquioides, a typical shrub in Southern Brazil. We described the size structure (height and stem diameter) and allometrical relations of a R. parquioides population by counting and measuring all the individuals in a 725m² area in the municipality of Curitiba (25"25'S; 49"19'W). A total of 916 individuals (12,634 ind.ha-1) were recorded in the area. The firstexpectation was supported, since distribution by height and diameter classes showed a predominance of small individuals (skewness coefficients > 1). On the other hand, the regression between height and stem base diameter showed slope β < 1, which indicates that growth in height is higher than in diameter, not supporting the second expectation. These results show that life strategies in shade-tolerant species may imply in more trade-off combinations than previously described. 2010 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32717619011 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.3 Vol.82