Estructura de la comunidad de cunáxidos (Acarina) edáficos de una selva baja caducifolia en Chamela, México

摘要: Community structure of edaphic cunaxids (Acarina) from a lowland dry forest in Chamela, Mexico. The community mites was studied at tropical the Chamela Biological Station, Jalisco, Monthly samples litter and soil were taken during one year (July 1991-May 1992), two small watersheds. A total 43 species recorded. We their abundance, frequency (F), rareness relative abundance (Ar), density (ind m -2 ), richness (S), Shannon's diversity index (H'), Pielou's evenness (J'). similar (38 species), but composi- tion different. higher found soil, with 5 074 ind ; 2 199 . subfamilies highest both biotopes Coleoscirinae (H=1 127 S=2 235 ) Cunaxiinae (H=887 S = 1 936 ). genus Pulaeus had most species, all new to science. Mean variance indicate an aggregate distribution for these cunaxids. By permanency dominant were: Cunaxa potchensis, Coleoscirus simplex, Armascirus harrisoni, Cunaxoides sp. nov. 1, 2, 15 16. An significant effect month biotope recorded on composition cunaxid communities. Most presented (24 spp.) (23 spp.), five only similarity (75 %) (74 %). tem- poral variation density, April through June litter, September t hrough November soil. constant biotopes. period values while it rainy season. high (February-