Caracterización de la aracnofauna presente en las coberturas vegetales de tres zonas de la ciudad de Bogotá,Colombia

Abstract

The urban processes progressively deteriorate the natural ecosystems, however they also manage to consolidate artificial or intervened habitats that can provide better opportunities for several species capable of adapting to the strong changes. Within the research on arthropodofauna present in urban environments, spiders are one of the most studied groups in Latin America because they have gained acceptance as indicators of environmental quality, however in Bogotá there are few works on these organisms despite having ecosystems such as wetlands, Andean forest, savanna and xerophytic zones. The main objective of this research was to characterize the arachnofauna present in three plant coverings of the city of Bogotá, for this purpose, collections were made under the method of vegetation agitation, diversity analyzes were carried out, the Chao-Jaccard similarity index was calculated for each of the sampled areas and detrended correspondence analysis (DCA). As a result, 1255 spiders included in 8 families were collected, with Anyphaenidae being the most abundant and Theridiidae the one that had the most richness. An updated list is presented with an approximation of the species / morphospecies of spiders present in the city. No possible spider preferences were observed for any tree / shrub species, however it was determined that the diversity of species may be affected by the state in which the plant cover as a whole is found and the influence of urbanization on these. This is one of the first works on the arachnofauna in the city, so it is recommended to use other sampling methods in other microhabitats used by the spiders to achieve a greater understanding of the cities as multifunctional ecosystems.