Our study examined a total of 60 dead wood samples (Quercus spp.), collecting 30 samples each in summer and winter, and measured various environmental variables in the field. These samples were classified into three decay classes: fresh, intermediate, well-decayed. We sampled saproxylic beetles within the collected dead wood using emergence traps. Conducted a cluster analysis to explore their relationships of saproxylic beetle and environmental variables. Our results revealed that season and decay class were significant environmental variables affecting saproxylic beetle communities. These results highlight the sensitivity of saproxylic beetles to fluctuations of environment and climate. In summary, our study highlights the intricate relationships between environmental variables and saproxylic beetles and suggests that different types of dead wood should be maintained in forests.

• Ji-Won Kang(Department of Biological Sciences and Biotechnology, Chungbuk National University)
• Seung-Il Lee(Faculty of Natural Resources Management, Lakehead University, Canada)
• Ui-joung Byun(Department of Biological Sciences and Biotechnology, Chungbuk National University)
• Jong-Seok Park(Department of Biological Sciences and Biotechnology, Chungbuk National University)