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Winter foraging of threatened cranes in the Demilitarized Zone of Korea: Behavioral evidence for the conservation importance of unplowed rice fields

Title
Winter foraging of threatened cranes in the Demilitarized Zone of Korea: Behavioral evidence for the conservation importance of unplowed rice fields
Authors
Lee S.D.Jablonski P.G.Higuchi H.
Ewha Authors
이상돈
SCOPUS Author ID
이상돈scopus
Issue Date
2007
Journal Title
Biological Conservation
ISSN
0006-3207JCR Link
Citation
vol. 138, no. 41276, pp. 286 - 289
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We studied the winter foraging activity of the endangered Red-crowned crane (Grus japonensis) and the vulnerable White-naped crane (Grus vipio) in the Cheolwon area of the Civilian Control Zone (CCZ) area of South Korea, adjacent to the Demilitarized Zone with North Korea. Due to its limited development, the CCZ is one of the most critical migratory habitats for these endangered cranes. Farmers in the CCZ now plow most of their fields after the fall harvest rather than in the spring as they did previously. Cranes observed on the few remaining unplowed fields in the CCZ spent more time foraging than cranes on adjacent plowed fields. This behavior is a clear indication that the unplowed fields contain more food resources for the cranes than do the plowed fields. This is the first behavioral demonstration of differences in foraging between plowed and unplowed rice paddies for cranes in one of the cranes' most important refuges. We believe that the changes associated with plowing rice paddies may be detrimental to these threatened cranes, and efforts to promote unplowed fields in the CCZ should be encouraged. © 2007.
DOI
10.1016/j.biocon.2007.04.007
Appears in Collections:
엘텍공과대학 > 환경공학전공 > Journal papers
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