반딧불이 성충의 개체군 조사방법은 크게 Mark-recapture method (MR)와 Flash counting method (FC)로 구분된다. 그러나 MR법은 오랜 시간과 노력이 요구되어 대부분의 조사는 FC법을 이용하고 있다. 본 연구는 두 조사방법의 차이와 상관성을 분석하여 각 조사방법의 효율성을 파악하고자 한다. 애반딧불이 성충의 조사는 경북 안동시 남선면 일대에서 2012년 6월부터 2013년 7월까지 총 33회 실시하였다. MR법을 이용한 결과 총 3,051개체가 조사되었으며, 비행하는 개체수의 암·수 비율은 약 1:9, 휴식하는 개체수의 암수 비율은 약 3:7로 나타났다. 비행 및 휴식하는 암·수 개체수의 상관성을 분석한 결과 2012년 조사 시 휴식하는 개체의 상관관계는 0.809, 비행하는 개체는 0.677로 상관성이 높은 것으로 나타났다(p<0.01). FC법으로 조사한 결과 비행시 관찰된 개체는 총 903개체, 휴식시 관찰된 개체는 총 1,166개체가 조사되었다. MR법 및 FC법의 상관관계 분석을 실시한 결과 2012년과 2013년 조사시 휴식하는 개체수의 상관관계는 각각 0.904, 0.831, 비행하는 개체수는 0.942, 0.960으로 상관관계가 높게 나타났다(P<0.01). 조사방법에 따른 휴식 및 비행하는 개체에 대한 회귀분석을 실시한 결과 2012년 및 2013년 휴식하는 개체는 결정계수(r2)가 각각 0.8180, 0.6910, 비행하는 개체는 각각 0.8882, 0.9221로 높게 나타났다(p<0.001). 따라서 약 2~3년간 MR법과 FC법을 병행하여 실시한 후 FC법으로 전환한다면, 애반딧불이 개체군 유지에 필요한 기본 정보를 파악할 수 있을 것으로 판단된다.

The dispersal distance and the flight behaviour of adult Platypus koryoensis were examined using mark-release-recapture experiment in central Korea in 2013. Sticky traps were attached to the trunks of oak trees toward release point and opposite direction up to 48.8m from the release point. For each direction, two traps were attached on upper (1.5m from ground) and lower (0.5m from ground) trunk. Platypus koryoensis which emerged within 24 hours were marked with fluorescent powder and released at 11:00 a.m. The number of recaptured beetles was counted after 30 and 90 minutes after release. The experiment was replicated three times on 20, 21, and 26 June. The numbers of beetles released were 299, 810, and 208, respectively. Recapture rates at 90 minutes after release on 20, 21, and 26 June were 0.09, 0.06, and 0.03, respectively. More than 85 percent of recaptured beetles were caught in 30m. The numbers of beetles caught by sticky traps in upper and lower trunk were not significantly different, indicating that P. koryoensis do not hover but just land and move to explore suitable for living site in trunk when they attack oak tree. The valley breeze which drive upward the valleys and mountain slopes in the daytime blew during experiment periods and maximum flight distance of P. koryoensis was 43m, even though the beetles flew against the wind.

We conducted a investigation for dispersal ability of Aedes albopictus, a dengue vector mosquito, using mark-release-recapture method in Korea. A certain number of fluorescence marked Ae. albopictus was released in four different habitats – urban (Cheonan), suburban (Jochiwon), port (Pyeongtaek), and airport (Cheongju), and sticky traps and BG-traps were used to recapture the mosquito in designated time period. In case of urban and suburban areas, 100 sticky traps were used in 3-week period for both regions, and 19 BG-traps and 15 BG-traps were used in 36-hour period for urban and suburban areas respectively. Using sticky trap, 21 from 1,300 released mosquitoes (1.62%) were recaptured in urban area; while in suburban area, only 2 individuals (0.1%) were recaptured. Most of them were recaptured within 100m from releasing point and about 40% were within 20m distance. When BG-traps were used, 35 from 900 released mosquitoes (3.8%) were recaptured in urban area; while 26 mosquitoes (2.8%) were recaptured in suburban area. The maximum distance of dispersal was 200m in urban and 100m in suburban area, while most of them were recaptured in 50 ~ 80m range. In case of port and airport area, 15 and 10 BG-traps were used respectively to recapture 1,000 released mosquitoes in 5-day period. In port area, 23 mosquitoes (2.3%) were recaptured; while 166 mosquitoes (16.6%) were recaptured in airport area. The maximum distance of dispersal was 130m in both areas; while most of them were recaptured in 50m range. In conclusion, Ae. albopictus has a narrow dispersal range compared to other mosquitoes, a typical characteristic of genus Aedes, and their dispersal ability is greatly affected by various environmental factors. These results can provide basic information for effective prevention of Ae. albopictus and overseas inflow of dengue fever.