The Japanese Forestry Society Congress Database
115th The Japanese Forestry Society Congress
Session ID : I12
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Logging impact on carabid assemblages at a natural forest in Japan
*Naoya OSAWAAtsumi TERAIKeiichi HIRATAasammi NAKANISHIAyumi MAKINOShinnjirou SAKAISyouzou SHIBATA
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Abstract

We hypothesized that logging would greatly affect the species-specific microhabitats of carabid beetles. To test this hypothesis, we studied the carabid assemblages at Kamigamo Experimental Station, Kyoto, Japan, from June 1999 to May 2001, in three experimental (logged) and three control plots. The area of the experiment was categorized as a forested area that had experienced relatively little disturbance, in terms of species composition. In total, 303 individuals of 13 carabid species were collected in the study plots.The numbers of large carabid beetles, i.e., Carabus dehanii, Ca. yaconinus, Ch. posticalis, and Haplochaenius costiga, decreased because of logging, whereas Synuchus arcuaticollis and S. cycloderus may not have been negatively influenced by logging. The weight of the FH layer significantly affected the total number of P. latemarginatus, and marginally affected the number of S. cycloderus. However, soil water content (%) and the mean weight of the L layer did not affect the total number of beetles in any species. These results imply that the richness of the FH layer and vegetation, i.e., the potential food abundance and habitat richness, is more involved than soil moisture in determining species richness and density of the carabid assemblages.

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© 2004 by The Japanese Forestry Society
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