OCCURRENCE OF CARABID BEETLES (COLEOPTERA: CARABIDAE) IN A BOREAL FOREST DAMAGED BY FIRE

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Abstract
Fifteen months after an intense forest fire, the fauna of carabid beetles in burnt and unburnt sites was sampled using pitfall traps to detect the indirect effects of fire on carabids caused by habitat change. Traps were installed in burnt and unburnt sites in which the dominant tree species before the fire was either spruce or aspen. The most commonly caught species wasPterostichus pensylvanicuswhich was captured more frequently in unburnt sites, but was not affected by dominant tree species; a similar pattern of distribution of captures was found forCarabus taedatus. Harpalus laticepswas captured only in burnt sites.P. lucublandusandDicaelus sculptilis upioideswere most commonly caught in the unburnt aspen site, whilePterostichus adstrictuswas most commonly caught in the burnt spruce site.