Caracterización de la miriapodofauna (arthropoda: myriapoda) de bosque húmedo andino en el municipio de Icononzo-Tolima, Colombia

Abstract

Myriapods are a subphylum of arthropods that are part of the edaphic fauna and play an important ecological role by controlling populations of other arthropods and by participating in the formation of porosity and the cycling of soil nutrients. Besides representing importance in public health by the production of poisons and toxic repellent substances. The study of this fauna in the Colombian territory is not very broad, there being few references in terms of research dedicated to taxonomic studies, diversity and autoecological aspects. Therefore, this research focuses on a study of diversity and ecology of myriapods associated with three different vegetation coverings (forestry plantations of Musa paradisiaca, riparian forest and secondary forest) in subtropical Andean forest in the village Carfrería, municipality of Icononzo- Tolima, Colombia Diversity analysis, analysis of the relationship of the miriápodos to each sampling zone, description of microhabitats and autoecological aspects for certain groups of myriapods are presented. In each sampling area, four methodologies were used to collect myriapods: direct method, tree traps, fall traps and Winkler bags. In addition, collection of plant material and atmospheric data collection was carried out. For diversity analysis, relative abundance was calculated and richness indices were applied, Shannon H ', Simpson, Fisher alpha, Berger-Parker, and Equity index of Pielou (J'). Multivariate analyzes were performed to establish the association of the myriapodofauna with the abiotic variables and the established microhabitats. Cluster analysis was performed to evaluate the association between microhabitats and between sampling zones. We collected 917 specimens represented in seven species and 48 morphotypes, of which the Polydesmida order was the most diverse and abundant. 12 microhabitats occupied by 707 myriapods were described. Taxa of diplópodos are associated to the different avariables abióticas and specific microhabitats, whereas in the chilopoda their distribution seems to be influenced mainly by the disponiilidad of food. Biological and autoecological data are provided, describing reproductive, parasitic, ethological and interactional processes with the flora of the sampling sites. This research is a pioneer in subtropical humid forest ecosystems in Colombia.