Resumen de Diversidad de la fauna de artropodos terrestres en el humedal Jaboque, Bogotá-Colombia

David Sánchez-n., Germán D. Amat-garcía

• español

  En el Humedal Jaboque, ubicado dentro del perímetro urbano de la ciudad de Bogotá, se estudió la composición taxonómica y trófica, la riqueza y la diversidad de la fauna de artrópodos terrestres asociada a cinco comunidades de vegetación cuyas especies dominantes eran: Juncus effusus, Juncus effusus y Polygonum punctatum; Schoenoplectus californicus, Typha latifolia y Bidens laevis. Se colectaron 8944 individuos que representan una biomasa seca de 9757.8 mg., correspondientes a 212 morfoespecies, 48 familias y siete órdenes de artrópodos; cifras que califican a este humedal altoandino como un centro de alta concentración de especies de artropodos. Las familias Ephydridae, Chironomidae y Muscidae del orden Diptera se destacan por sus altos niveles de riqueza, abundancia y biomasa. Se identificaron seis tipos de patrones de distribución al evaluar la abundancia relativa y la selección de hábitats en las familias de artrópodos. Se detectaron 16 morfoespecies que tienen probablemente ingerencia en la reproducción de algunas plantas cuyos individuos adultos son visitantes florales de especies de las familias Asteraceae y Poaceae, taxones conocidas por presentar estrategias de polinización entomófila y anemófila, respectivamente.

• English

  In the Jaboque wetland, located within Bogotá´s urban perimeter, we studied the taxonomic and trophic composition, the richness and the diversity of arthropod fauna associated with five plant communities dominated by: Juncus effusus, Juncus effusus-Polygonum punctatum, Schoenoplectus californicus, Typha latifolia and Bidens laevis. These vegetation communities are important because their great coverage within the wetland and their successful establishment under low perturbation conditions. 212 morphospecies were identified distributed in 48 families and seven orders. This richness qualifies the high andean wetlands, submitted to low perturbations conditions as centers of high concentration of arthropods species. Along the study 8944 individuals were collected representing a dry biomass of 9757.8mg. The order Diptera and its families Ephydridae, Chironomidae and Muscidae outstand by its predominance in richness, abundance and biomass level. Within the vegetation communities considered we appreciate a variable arthropod fauna in composition, high diversity of morphospecies and complex trophic diversity. There were also found six types of distribution patterns. Arthropod fauna elements were identified (16 morphospecies) that possibly have reproduction inference to some plants of the wetland, because of its floral visitor behaviour. Plants of the Asteraceae family, with an entomophilous pollination estrategy and the Poaceae family with an anemophilous strategy presented the highest concentration of anthophilous insects.