Structure and composition of the communities of palms in five locations (San Juan, Tutunendo, Alto Baudó, Lloró and Raspadura) of the department of Choco, Colombia

Abstract

From the standpoint of importance in the composition of forests, palms are among the seven families of plants with the highest number of species in the forests of the Pacific low. Sampling relevant in the Pacific region, is found a greater number of individuals of palms by area than in any other region in the world. This study is based on a series of samples of palms in the framework of the biological expeditions of the University of Choco (2004-2005) and the study of the flora of the Pacific Research Institute of Environmental Pacific (IIAP) (2007), to analyze the diversity, distribution and composition of the appeal palm with high potential for use in the stations of the environmental IIAP in Tutunendo, Alto and San Juan High Baudó en Chocó. It was calculated the diversity alpha, beta and range, while using statistical programs for Biodiversity Pro to make the analysis of alpha diversity and measuring the rates of Shannon H ‘and J’, Berger Paker, Simpson, Margalet, to graph and analyze the patterns of distribution and grouping of species in the community; estimate, for the analysis of the data and obtaining the percentages of those observed and estimators Chao 2, Jack Coleman and 2 and GM, and for X2 Past and the value of P and to make the principal component analysis (PCA). The palms were formed in a dominant component in the vegetation of sites with a wide variety of species with high potential for local uses. These samples were found 33 species of palms, belonging to 13 genera (Geonoma, Chamaedorea, Bactris, Pholydostachys, Wettinia, Welfia, Iriartea, Socratea, Oenocarpus, Aiphanes, Astrocaryum, Attalea, Desmoncus).