논문 상세보기
pp.41-52
산림을 주 서식지로 이용하는 쇠큰수염박쥐(Myotis ikonnikovi)의 서식지 특징에 관하여 연구하였다. 안개그물을 이용한 포획조사를 통해 확인된 쇠큰수염박쥐 서식지는 비교적 수령이 오래되고 흉고직경이 굵은 활엽수가 우점하는 숲으로 평가되었다. 소형무선추적장치를 통해 쇠큰수염박쥐의 잠자리는 주로 활엽수의 수피틈, 꺾어진 줄기의 틈, 옹이 기둥 접합 부분의 틈 등으로 확인되었다. 낮동안 이용한 잠자리는 포획지점으로부터 35~584 m 이내에 위치하였으며, 개체당 잠자리는 1~5일간 이용하였다. 쇠큰수염박쥐와 같은 산림성 박쥐류의 다양성을 높이기 위하여 산림내 다양한 먹이자원이 풍부하고, 이용가능한 다수의 잠자리가 확보될 수 있는 산림서식지 관리방안이 요구된다.
Little is known about foraging and roosting habitat of tree-roosting bats in Korea. In the presentstudy, we studied on characteristics of foraging and roosting habitats by Ikonnikov’s whiskered bats(Myotisikonnikovi) in the South Korea, using trapping and radiotelemetry. We captured the bats at 15 sites during nights(foraging times) using mist-nets. Based on characteristic analyses of forests within a radius 500m from eachcapture site, forests ofM. ikonnikovihabitat are similar characteristics to the old-growth forests. They foragedat forests dominated by boradleaf stands which are older than than 30-year-old and thicker than 20cm in diameterat breast height(DBH). We used radio-transmitters to locate and characterize day-roosts of Myotis ikonnikovi,and totally the roost use patterns of three bats were surveyed. They roosted in trees(both live and dead) withexfoliating bark, extensive vertical cracks, or cavities, and thier roosting sites were located about 500m fromthe initial capture location. The bats had a number of roost in a short-distance, some used new roost every dayand the same roost sometimes were used repeatedly. To increase the diversity of the tree-dwelling bats includingMyotis ikonnikovi, management practices that the higher food and roost availablility can be sustained in forestsare needed.
