洛東江河口의 鳥類 = Bird Population in the Nakdong Estuary

다국어 초록 (Multilingual Abstract)

A survey of the invertebrate fauna of the sand bar in Nakdong delta and Yongwon-ri inlet, South Korea, was made, the count of migrating waders and waterfowl was taken, and the stomach contents of 5 Kentish plovers were analyzed.
During the survey it was noticed that the commonest wader foraged near the water's edge and in shallow water during hightide. This may be correlated to the fact that their type of food is present in all these delta and inlet areas.
The distribution and aggregation of waders and waterfowl shows an correlation to the distribution of their principal food species, and to other environmental factor such as the nature of the substrates and the availability of cover.
The aggregating population of some waders confined to the remaining sand bar of Nakdong delta, e.g., Mujigae-dung, Galmaegi-dung, and Teama-dung, reflects changes occurring on a wide scale there. Although there may be a number of minor underlying factors, the fundamental cause for these changes in ascribed to the recent reclamation and construction of the barrage in the estuary.