Caracterización de Microhábitats de la Artropofauna en páramos del Parque Nacional Natural Chingaza Cundinamarca, Colombia
Keywords:
Microhábitats, Artropofauna, Páramos, Caulirrósulas, Macollas¡, Bambusoides, Tapetes de criptógamas, Fraylejonalpajonal, Coleópteros, Dípteros (es)Microhábitats, Artropofauna, Páramos, Caulirrósulas, Macollas¡, Bambusoides, Tapetes de criptógamas, Fraylejonalpajonal, Coleópteros, Dípteros (en)
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Se identificaron y describieron 10 microhábitats ocupados por la artropofauna en un fraylejonal pajonal típico del Parque Nacional Natural Chingaza (Cundinamarca). Los microhábitats descritos se derivan de los principales biotipos de la vegetación observados (caulirrósulas, macollas, bambusoides y tapetes de criptógamas), de los horizontes del suelo y de sustratos aparecidos por la alteración del páramo (sustratos de roca, estiércol bovino). Las comunidades de la artropotauna estudiada se caracterizan por la riqueza en especies de coleóptera y díptera, las cuales conforman el 40% de la totalidad de especies registradas. De aproximdamente 85 especies, el 40% procede de microhábitats derivados de sustratos vivos y de la necromasa de Espeletia grandiflora. Finalmente, se analizan los factores determinantes de los procesos de ocupación de estos microhábitats por los organismos.
The microhabitats occupied by the arthropofauna in sites abounding in typical communities of giant rosette plants (Espeletiinae: Compositae) and tussock grasses were characterized and described. The microhabitats herein described come from the principal observed biotipes of vegetation (caulirrosula, tussock, bamboo-shaped and criptogam carpets), from soil horizonts and substrata appearing as a result of temperature factor and heth disturbance (rocky substratum, bovine dung). The arthropofauna comunity herein canvassed is featured by its abundance of coleóptera and diptera making up 40% of the total number of species. From nearly 85 species, 40% are coming from microhabitats derived both from alive substratum and from Espeletia grandiflora necromass. Lastly, the most relevant factors of occupancy of such microhabitats by the organisms are explained.
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Copyright (c) 1991 Caldasia

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