AN ECOLOGICAL STUDY ON THE STACKING FELLED WOODS AS A MITIGATION MEASURE OF DAM CONSTRUCTION FOR THE HABITAT OF FOREST INCSECTS

Abstract

 In order to mitigate the habitat of forest insects during and after dam construction, the stacking felled woods as a habitat substrate were installed in a construction area. Only just one month after their installation, 56 species of insects were identified including the beetles (Carabidae, Cerambycidae) which are usually live in rotten woods. Though number of identified species in the felled woods varied with seasonal change, typical species in rotten woods were always identified. Stacking felled woods were confirmed as an effective mitigation measure for the habitat of forest insects during and after construction.