KNU IFS 2017 Annual International Symposium of Institute of Forest Science (2017.11)바로가기
페이지
pp.42-42
저자
Jinmun Jung, Jungho Park, Jinsoo Byun, Haengseop Song, Heonwoo Park
언어
영어(ENG)
URL
https://www.earticle.net/Article/A450063
원문정보
초록
영어
The aim of this study was to investigate the Common cormorant breeding status and environmental risk at jokja islet in Paldang lake. This bird was winter migration birds but, found breeding colony at Yudo islet of Han river estuary and expended more than 34 times their breeding pairs through Han river were 827 and 3,887 individuals. Most of the nests were northwards, and in the middle of the island, they were bred along with egrets. Exotic fish, such as Blue gill and Large mouth bass, accounted for 53 percent of the food, and no food preference was found. A nest trees were damaged or died about five years because of Excreta and Breaking branches for nest Maintenance work. The feces were unaffected by water pollution, soil surface was contaminated with phosphate contamination and needed treatment.