고사목에 서식하는 절지동물군집의 기능군별 분류: 윈도우 트랩과 우화 트랩의 비교

This log-dwelling arthropod community study was conducted for the ecological evaluation of dead woods at Korean fir stand in Mt. Woonak which located in Pocheon-si (city) from April 2010 to August 2012 (except for the period from september 2010 to April 2011). We collected 3,484 individuals (5 classes, 18 orders, 52 families) by using the passive method, but we didn't include the number of unidentified larva for this study. For the window traps, we collected 2,184 individuals (3 classes, 18 orders, 51 families). We classified those individuals from window traps into the five functional groups and we discovered the proportion and richness of each functional group : herbivores (29.2%, 14) saproxylophagous (25.0%, 12), xylophagous (12.5%, 6), predators (27.1%, 13), detritivores (6.3%, 3). For the emergence traps, we collected 1,730 individuals (3 classes, 18 orders, 36 families). We classified those individuals from emergence traps into the five functional groups and we discovered the proportion and richness of each functional group : herbivores (31.4%, 11), saproxylophagous (22.9%, 8), xylophagous (17.1%, 6), predators (25.7%, 9), detritivores (2.9%, 1). Overall, we suggest that window traps are more efficient to catch herbivores group (especially, Coleoptera and Hymenoptera) and emergence traps are good at catching the predator group(particularly, Ant and Araneae). We concluded that each passive trap has different efficiency according to the arthropod characteristics. Rather than using just one trap, if we use the trap with adequate purpose, we can enhance the efficiency of catching. This study found a relationship between the dead woods which related to a biodiversity loss and the community of arthropods which make up more than 76 percent of biodiversity. Our study can help in finding the role of dead woods in the forest ecosystem as habitat. When preparing the proper forest managements considering this fact, the forest will be more complex. Also, it can improve the structure and function of the forest ecosystem.