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Territory Size of Breeding Chinese Sparrowhawks($Accipiter$ $soloensis$) in Korea  

Choi, Chang-Yong (Department of Forest Sciences, Seoul National University)
Nam, Hyun-Young (School of Biological Sciences, Seoul National University)
Lee, Woo-Shin (Department of Forest Sciences, Seoul National University)
Publication Information
Korean Journal of Environment and Ecology / v.26, no.2, 2012 , pp. 186-191 More about this Journal
Abstract
The Chinese Sparrowhawk($Accipiter$ $soloensis$) is the most common breeding raptor in Korea, but its spatial use in the breeding season has been poorly documented. Therefore, to estimate the territory and home range sizes of breeding sparrowhawks, six territorial males(four in 2005 and two in 2006) were observed from June to July in Gyeonggi Province, the Republic of Korea. Main perches, which were used repeatedly(more than three times) or where apparent territorial behaviors were observed, were identified and the locations were analyzed by GIS software. According to the 100% Minimum Convex Polygons which were identified from $25.2{\pm}5.3$ perches, Chinese Sparrowhawks occupied $4.62{\pm}0.90$ ha for breeding territories and used $22.57{\pm}5.12$ ha for their home ranges. These estimates showed larger spatially occupied areas than those in one previous report, but this study suggests that Chinese Sparrowhawks intensively use small areas throughout the breeding season. This result also implies that the sparrowhawks have the potential to be significantly affected by any habitat changes and resource exploitation in the small areas(particularly in small rice paddies of 0.6-2.0 ha) which they largely rely on for food. Although this study was based on observations solely for territory size estimations, this study may be worthwhile as preliminary pilot research for Chinese Sparrowhawk conservation, management, and further studies.
Keywords
HOME RANGE; MINIMUM CONVEX POLYGON(MCP); SPATIAL USE;
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연도 인용수 순위
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