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• Autor(a) principal: Negrelle, Raquel R. B.
• Data de Publicação: 2001
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Biotemas (Online)
• Texto Completo: https://periodicos.ufsc.br/index.php/biotemas/article/view/21694

Based on floristic and structural data from distinct sites in the Atlantic Rain Forest, this study discuss the criterion utilized to consider a certain tree species as rare. This widely used criterion states that a tree species is rare if only one individual is present per hectare. The results showed a similar number of "rare" species within analyzed sites but, among these, species similarity is almost zero and no pattern could be detected. Also, almost all species considered "rare" at one site are relatively abundant in another. Further, if younger specimens are included in quatitative studies, species previously considered to be rare would no longer be placed in this category. Thus, this paper suggests that the use of this criterion must be associated with the evaluation of other ecological parameters.