Occurrence and abundance of fungus每dwelling beetles (Ciidae) in boreal forests and clearcuts: habitat associations at two spatial scales

作者：A Komonen; J Kouki

来源：Animal Biodiversity and Conservation, 2005.

• Forest landscape
• Boreal forest
• Coarse woody debris
• Wood&ndash
• decaying fungi
• Trametes
• Ciidae

Insect material (%26gt; 30,000 individuals) reared from the fruiting bodies of wood每decaying Trametes fungi was compared between old每growth boreal forests and adjacent clearcuts in Finland. Sulcacis affinis and Cis hispidus occurred more frequently and were, on average, more abundant in the clearcuts. Interestingly, Octotemnus glabriculus and Cis boleti had a slightly higher frequency of occurrence in the forests, despite lower resource availability. The former also showed a higher average abundance. On average, the cluster size of Trametes fruiting bodies occurring on woody debris was higher in the clearcuts than in the forests and had a positive effect on species occurrence and abundance in these clusters. The independent effect of the macrohabitat (forest or clearcut) underscores the importance of the macrohabitat where specific resources occur, and this may override the positive effects of resource availability.