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Biota Neotropica

On-line version ISSN 1676-0603

Abstract

SALM, Rodolfo. The importance of forest disturbance for the recruitment of the large arborescent palm Attalea maripa in a seasonally-dry Amazonian forest. Biota Neotrop. [online]. 2005, vol.5, n.1, pp. 35-41. ISSN 1676-0603.  http://dx.doi.org/10.1590/S1676-06032005000100004.

The hypothesis that forest disturbance is important for the recruitment of the large arborescent palms Attalea maripa was tested with a natural experiment in the Pinkaití site (7º 46'S; 51º 57'W), a seasonally-dry Amazonian forest. A 8,000 m long trail, that crosses, in its lower half, an open forest along the Pinkaití stream bottomlands and, on its upper half, a dense forest on a hill, was divided in 160 0.15 ha (50x30 m) sampling units. At each unit, adult palms were counted and percentage of canopy openness was measured with a concave spherical densiometer. The palms were nearly five times more abundant at the bottomlands, whose forest had a canopy 14.8% more open than that of the hill; supporting the hypothesis that disturbance is important for their recruitment.

Keywords : Attalea maripa; Forest dynamics; Palm trees; Forest regeneration.

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