본 연구는 우리나라 흑비둘기 최대 서식지인 울릉도에서 2016년 3월부터 2018년 2월까지 흑비둘기의 지역별 개체군 변동과 선호하는 생태적 환경에 대하여 조사하였다. 조사기간 동안 40개 정점에서 확인 된 흑비둘기의 누적개체수는 1,956개체가 조사되었고 최대개체수는 2016년 8월에 326개체가 출현하였다. 월별 개체수 변동은 10월부터 출현개체수가 감소하다가 겨울철인 12월에서 2월에는 거의 관찰되지 않았다. 지역별 개체수 비율은 2016년에는 나리분지 지역이 33.43%로 가장 높았고 2017년에는 태하, 학포 지역이 29.39%로 흑비둘기가 많이 출현하였다. 흑비둘기가 선호하는 서식지 특성은 활엽수림 (77.5%), 임분의 영급은 4영급(75%), 흉고직경(DBH)은 중경목(80%), 수관수밀도는 밀밀도를 선호하였다. 해발고는 평균 178.22±36.60 m(SD, n=40, range 10∼472)였고 10∼160 m 지역이 전체 지역의 57.5%를 차지하여 저지대 산림을 선호하는 것으로 나타났다.

Columbidae (pigeons and doves) is one of the most threatened bird families in the world. Japanese Wood Pigeon (Columba janthina) lives in the southern island of Korea and Ulleungdo island, which is considered as an endangered species in the world. We need to investigate the size of its population in this region for protecting and managing the endangered species. The changes of ecological environment and population dynamics should be monitored. There was not a research on the population size of Japanese Wood Pigeon in Korea. Therefore, it is very important to conduct research on the basic information such as population size and seasonally preferred habitat so that we could better protect Japanese Wood Pigeon. This study was conducted to investigate the regional variation of population and the preferred ecological environment in Ulleungdo, the largest habitat of Japanese Wood Pigeon in Korea, from March 2016 to February 2018. Population surveys were conducted separately at 40 points in eight habitats of Japanese Wood Pigeon. Forest type, tree age-class, DBH, forest density crown and altitude were analyzed as environment factors. Japanese Wood Pigeon was observed up to the total of 1,956 (number of cumulative individual) individuals in the 40 points during the survey period. The maximum population is 326 individuals in August 2016. Monthly population fluctuation decreased from October and was almost not observed between December and February. The Japanese Wood Pigeon was found 34.16% in the Nari Basin area on 2016 and 29.39% in the Taeha, Hakpo areas on 2017. The Japanese Wood Pigeon preferred the following habitat environments: broad-leaf forests (77.5%), tree age class 4 (75%), DBH class 2 (80%), & high density crown (100%). The average altitude was 178.22±36.60 m (SD, n=40, range 10 m∼472 m) and an altitude of 10 to 160 m accounting for 57.5% of the total area indicating a preference for lowland forests.

초록
 ABSTRACT
 서론
 연구지역 및 방법
  1 연구지역 선정
  2 개체군 조사
  3 서식지 선택
  4 분석
 결과 및 고찰
  1 시기별 개체군 변동
  2 지역별 개체군 변동
  3 서식지 선택 특성
 고찰
 References

• 최순규(강원대학교 산림환경시스템학과) | Soon Kyoo Choi (Department of Forest Environment System, Kangwon National University)
• 박성완(경북대학교 생물학과/지구생태환경연구소) | Sung Wan Park (Department of Biology, Kyungpook National University/Earth Ecological Environment Research Institute)
• 김재웅(지구생태환경연구소) | Jea Wong Kim (Earth Ecological Environment Research Institute)
• 박영철(강원대학교 산림환경시스템학과) | Yung Chul Park (Department of Forest Environment System, Kangwon National University) Corresponding author