Resumo

CAMPO KURMEN, JUAN MANUEL. Structure, Richness and Composition of Arboreal Plants in a Cloud Thinning Forest of Tolima (Colombia). Acta biol.Colomb. [online]. 2010, vol.15, n.2, pp.247-262. ISSN 0120-548X.

Structure, richness, and floristic composition of the woody elements of the selective logging forest of the Vereda Dantas, (Ibagué, Tolima, Colombia), where studied in a 0.1 ha plot sampled for all individuals ≥2.5 cm dbh. The forest is characterized by scarcity of lianas and hemiepiphytic, absence of typical families of the Colombian cloud forests between 2000 and 2500 m (Araceae, Ericaceae, Myrtaceae, Meliaceae and Aquifoliaceae), and richness increment of the Sabiaceae and Euphorbiaceae. Compared to others cloud forest from the Colombian Andes and the Neotropic, it has, fewer individuals (237 individuals ≥2,5 cm dbh per 0.1 ha) and more large trees (39,7% of individuals ≥10 cm dbh per 0,1 ha). The forest has a lower woody species richness (75 species ≥2,5 cm dbh per 0,1 ha). Apparently, the effects of -selective- timber extraction on structure, richness, and floristic composition are decrease floristic richness and density of individuals, decrease of lianas density and richness, and more individuals of secondary species, like: Hedyosmum goudotianum Slms-Laubach var. goudatianum, Miconia resima Naud. y Palicourea calophlebia Standl.

Palavras-chave : Cloud forest; Andes vegetation; vegetation structure; selective logging.

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