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In this work, the community structure of Trichoptera and its spatial distribution along an altitudinal gradient at the Carrizal stream located on the Iguaque Sanctuary (Boyacá, Colombia) was studied. Monthly determina­tions of physical and chemical parameters were registred from September 1994 to October 1995 in order to establish the biotic and abiotic relationships. The community con­sisted of 15 genera belonging to nine fami­lies. The most important genera of caddisflies found were Ochrotrichia (28%) and Contulma (17.8%), Helycopsiche (13.4%), and Morto­niella (9.49%). The physical-chemical and biological characteristics of the Carrizal stream is dictated by the rainfall pattern. This lotic ecosystem can be considered as oligo­trophic, due to limited levels of nitrogen and phosphorus, low conductivity, and quantity of suspended solids.

RINCÓN-HERNÁNDEZ, M. E. (1996). Bioecological aspect of Trichoptera from the Carrizal Stream (Boyacá, Colombia). Revista Colombiana De Entomología, 22(2), 53–60. https://doi.org/10.25100/socolen.v22i2.9923