부제 : introductionresearch methodsresultsdiscussionreferencesYubu Island in Janghang-eup, Seocheon-gun, Chungcheongnam-do. The sex of each individual bird was determined and the frequency of behaviors in the observed site was investigated. As a result, the size of the male population was about 2 times that of
부제 : introductionstudy area and methodsresults and discussionreferencesA survey of the breeding ecology of Oystercatcher (Haematopus ostralegus) inhabiting in the Youbu Island was conducted from February to August 2006. The maximum number of Oystercatcher was 2,500 in February and the minimum 150 in July. The nests had
부제 : introductionmaterials and methodsresultsdiscussionreferencesYubu-do Island, while ducks dominated in Doam Bay and Gangjin Bay. Seagulls are dominant in the Daechoncheon estuary, an on Jangbongdo and Jeungdo islands. They are divided into three groups according to the similarity index (Ro). Group 1 is dominat
부제 : Yubu Island, Chungcheongnam-do, Korea. The worms of were 451×265 μm in size, and were easily identifiable as Maritrema species by the presence of the cirrus sac, and the ring-like distribution of the vitellaria. More specifically, the ejaculatory
taxa of naturalized plants. This study was performed to used as a basic data to identify the protected from plant ecosystems of type classify into analyze the vegetation characteristic of based on flora distributed in Yubu-do and nearby islands.