RECOLONIZATION OF 2 BURNT QUERCUS-PYRENAICA ECOSYSTEMS BY COLEOPTERA

Pit-fall trap catches were used to study the recolonization by the col eoptera fauna of Quercus pyrenaica ecosystems disturbed by wildfires. Two close oakwoods in Leon province of Spain were sampled monthly in 1 990, with pit-fall traps, one burnt in June 1986 and in the other Augu st 1989. Carabid genera such as Pterostichus and Anysodactylus increas ed in the four years post-fire recovered area compared to the recently burnt area and the non-burnt area. The species most affected by the e nvironmental changes were the less generalist species, that occurred l ess frequently than the more adaptable species.