Introduction: Despite growing interest by the ecosystems derived from the Guyanese formations, the vertical structure of the communities and relationships of the biota with the climatic conditions in these ecosystems are unknown. Objective: Characterize the structure and vertical composition of the arthropod fauna associated with three of the most representative ecosystems of the Northern area of the serranía de La Lindosa in Colombia based on morphological and ecological parameters. Methods: The arthropod fauna was sampled, from the subsurface soil level to the shrub and tree stratum. The fauna was determined up to the level of family or supraspecific group and the values of Alfa and Beta diversity were determined. Body length measurements were made, and the coloration and trophic level of each group were determined. Results: The composition and diversity of the arthropod fauna was different in each ecosystem and vertical stratum and most of the groups in all the ecosystems studied present low abundances. Groups of phytophagous and predatory habits were frequent in all ecosystems and the highest biomass of arthropod fauna comes from groups of polyphagous habits, of medium size and great abundance. Light and dark colorations are the most frequent in landscape-scale. Conclusion: The ecosystems studied are characterized by the low values of diversity and replacement and the large number of non-shared groups that apparently respond to the microclimatic characteristics; however, there are some generalities on a landscape scale such as the greater richness and abundance of groups in the intermediate strata, the greater proportion of groups with phytophagous habits and medium body sizes, and the predominance of dark colorations in the lower strata.
Se analizó la composición vertical la entomofauna en tres zonas del campus de la Universidad Nacional de Colombia en Bogotá entre los años 2018 y 2020 con el fin de dar a conocer especialmente a la comunidad en general, de la riqueza faunística en este relicto de zonas verdes dentro del paisaje urbano. Para la recolección de los especímenes, se realizaron muestreos estratificados en zonas con diferentes coberturas vegetales en el campus. La entomofauna recolectada se determinó a nivel de familia, para la cual se establecieron los valores de diversidad de Brillouin (B), dominancia (D) y equitatividad de Simpson (1-D). Se evaluó la eficiencia de los muestreos por medio del estimador Chao-1, se establecieron los modelos de abundancia de los sitios de muestreo para conocer su relación con los valores de diversidad y se determinó el nivel trófico de cada uno de los grupos recolectados. Los resultados muestran que la entomofauna de la Ciudad Universitaria está caracterizada por los bajos valores de diversidad, mayores valores de riqueza y abundancia en los estratos herbáceos y por el predominio de grupos de hábitos fitófagos y polífagos.
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