DIVERSIDAD VEGETAL EN LA COMUNIDAD HUAORANIDE QUEHUEIRI-ONO, CUENCA DEL RIO SHIRIPUNO.

Abstract

The Quehueiri-ono Huaorani community is located in the Ñapo Province, in Amazonian Ecuador; at 77°09'W, 01°01 'S and 250 m elevation. It belongs to the Tropical Rain Forest life zone (Cañadas 1983), and Lowland evergreen forests (Palacios et al. 1999). We established four sets (A, B, C and D) of 50 x 2 m transects with 10 subtransects each. Two sets were established in hill forests and two in alluvial forests. We measured and collected all spedes with al least 2.5 cm of DBH. Later on, we identified the sam ples at QAP H erbarium in the B iology Department of Ecuador's Central University The results showed a higher diversity of transects located in the hill forests compared to the alluvia! forests. We registered 133 and 137 species In the hill forest, and 111 and 117 species in the allu/'ai forests. Based on the Diversity Index, all samples are moderately diverse, and the Similarity Index showed that 25% of the species were common in the four samples.The most frequent species in Set A was Iriartea deltoidea (Arecaceae); in Set B. O toba g lycyca rp a (Myristicaceae) was the most frequent; in Set C, two species had the same highest values, Iria rte a d e lto id e a and P le u ro th yriu m tom entellum (Lauraceae); and m Set D, Pentagonia m a cro p h ylla (Rubiaceae) had the highest frequency 71 Montalvo & Orón: Diversidad Vegetal de Outhueiri-ono Set A, registered T rattinickia rh o ifo lia (Burseraceae) as the species with the highest Importance Value Index (IVI); in set B, Otoba glycycarpa had the highest IVI; in Set C, Guarea gomma (Meliaceae) had the highest IVI; and in Set D. Ceiba pentandrawas the species with the highest IVI. Traducción: Alina Frelre-Flerro