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Effect of heterospecifics on foraging of endangered red-crowned and white-naped cranes in the Korean Demilitarized Zone

Title
Effect of heterospecifics on foraging of endangered red-crowned and white-naped cranes in the Korean Demilitarized Zone
Authors
Lee S.D.Jablonski P.G.Higuchi H.
Ewha Authors
이상돈
SCOPUS Author ID
이상돈scopus
Issue Date
2007
Journal Title
Ecological Research
ISSN
0912-3814JCR Link
Citation
vol. 22, no. 4, pp. 635 - 640
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We determined how the presence of heterospecific individuals in the vicinity of a focal individual affects the behavior of two critically endangered species of cranes on their wintering grounds at Cheolwon in the Korean Demilitarized Zone. The red-crowned crane, Grus japonensis, is larger than the white-naped crane, Grus vipio, and it dominates the white-naped crane in aggressive interactions. We showed that the dominant species increases foraging activity in the presence of the subordinate species presumably because of scrounging of food from the subordinate. Because interspecific interactions may affect avian endangerments these behavioral findings should be taken into account when managing winter refuges for the two endangered crane species. © 2006 The Ecological Society of Japan.
DOI
10.1007/s11284-006-0067-z
Appears in Collections:
엘텍공과대학 > 환경공학전공 > Journal papers
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