천연기념물 난도에서 번식하는 괭이갈매기 개체군 및 서식 환경
(주)코리아스칼라
- 최초 등록일
- 2023.04.05
- 최종 저작일
- 2017.06
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서지정보
ㆍ발행기관 : 한국환경생물학회
ㆍ수록지정보 : 환경생물 / 35권 / 2호
ㆍ저자명 : 김미란, 권영수, 남기백, 이호, 명현호, 노형수
영어 초록
Nando Island is reported as one of the biggest breeding colonies of seabirds in South Korea, and is protected as a Natural Monument. This study was conducted between July to November 2015, to investigate the breeding population of Black-tailed gulls and their habitat on Nando Island. We estimated the breeding population of Black-tailed gulls (Larus crassirostris) using nest density. The mean nest density of Black-tailed gulls was 0.51 per 1 m2 (0.51 m-2), and the breeding population was approximately 26,760 individuals. The dominant vegetation was Echinochloa crusgalli and Agropyron tsukushiense var. transiens, which served as shelter and nest sites to Black-tailed gulls. The diet of Black-tailed gulls was mainly the fish, Japanese Anchovy Engraulis japonicas (48%). Other species which were found to breed on Nando Island were Streaked Sheawater (Calonectris leucomelas), Temmincks Cormorant (Phalacrocorax capillatus), and Swinhoes storm petrels (Oceanodroma monorhis).
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