Coleópteros y hemípteros acuáticos en un río temporal del centro de España

Abstract

Mediterranean temporary rivers maintain a high biodiversity, although they support a significant anthropic influence. The community of aquatic Coleoptera and Hemiptera of the Arevalillo River (N Ávila province), a temporary river in the centre of the Iberian Peninsula, with a section previously restored. This restauration consisted in the reforestation of the riverside and the recovery of pools in the riverbed to ensure the maintenance of the water. The aim is to determine the composition of the aquatic Coleoptera and Hemiptera community, its seasonal variation and the differences between two sections with similar characteristics, restored and non-restored, on these groups of aquatic insects. 53 species of Coleoptera and 17 of Hemiptera were identified, most of them with a wide geographical distribution, although 21 new records were made for the province of Ávila. The richness of Coleoptera and Hemiptera doesn’t show significant differences between the two studied stations, but they are indeed observed for the benthic macroinvertebrate community as a whole.