Resumen

SEIDEL, Renate. Tree inventory of three plots in primary forest of the Serranía de Marimonos, Alto Beni. Ecología en Bolivia [online]. 1995, n.25, pp.1-35.  Epub 30-Oct-1995. ISSN 1605-2528.

An inventory of the trees with dbh (diameter at breast hight) of 10 cm or more were conducted in three 1 -ha-plots of moist submontane forest (Serranía Marimonos, Alto Beni), in the Yungas of Bolivia, at an altitude between 600 and 750 m. Based on the dbh, number of individuals per species, and frequency, the importance value of species (VI) and of families (VIF) were calculated. Based on estimates of the height, a description of the structure of the forest is given.

A total of 1590 trees representing 209 species, some of them not yet completely identified, were recorded. Three plots share 42 species in common. The species with highest mean VI are Iriartea deltoidea, Poulsenia armata, Pseudolmedia laevis, Otoba parvifolia and Leonia racemosa. The most important of the 53 families to which the species belong are Moraceae by a wide margin, followed by Leguminosae s.l., Sapotaceae, Lauraceae, Meliaceae, and Euphorbiaceae. These seven families represent 52% of VIF.The distribution of heights shows the major part of the trees with 8 to 20 m and a much smaller number of trees forming an discontinue canopy with heights of 30-40 m.

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