자연상태에서 황새의 섭식 행동과 서식지 선택에 대한 사례연구
A Case Study of Foraging Time Budget and Habitat Selection of Oriental White Storks (Ciconia boyciana) in Natural State
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Abstract
- As a step toward developing conservation and restoration plans for an endangeredspecies of the Oriental White Stork (Ciconia boyciana), we studied daily foraging behavior andecology. We released two individuals, male and female, after enclosing study site with a fence andcutting out a part of two or three feathers of primaries. Research was conducted from 16 June to11 July, 2007 for 25 days at Whawonri, Mewonmyung, Chungbuk province. We investigateddiural and daily variation of foraging time budget, diet composition, and habitat selection of thefeeding individuals. The storks quadratically invested for foraging time and resting time acco-rding to time of day, but no significant variation in the foraging time and resting time appeareddaily over 25 days. As a result, the storks mainly used wetland as a foraging site in the center ofthe study area to that in the edge as well as to other types of habitat. The high usage for wetlandin the center did not change over the 25 days while Rice field decreased and Wetland in the edgeand Pathway increased. Female invested more time for foraging than male, but the foraging effi-ciency did not differ between them. We discussed the significance of foraging behavior andhabitat selection for management plan.
참고문헌 (14)
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