Proceedings of the National Institute of Ecology of the Republic of Korea

국립생태원 (National Institute of Ecology)
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Localized Habitat Use of Endangered Oriental Storks (Ciconia boyciana) Recently Reintroduced into South Korea

  • Ha, Dong-Soo (Eco-institute for Oriental Stork, Korea National University of Education) ;
  • Kim, Su-Kyung (Eco-institute for Oriental Stork, Korea National University of Education) ;
  • Shin, Yong-Un (Natural Heritage Division, Cultural Heritage Administration) ;
  • Yoon, Jongmin (Eco-institute for Oriental Stork, Korea National University of Education)
  • 투고 : 2021.06.28
  • 심사 : 2021.10.18
  • 발행 : 2021.11.01
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초록

The oriental stork (Ciconia boyciana) is listed as an endangered species internationally. Its resident population has been extirpated in South Korea since 1971. Its predicted historical habitat included forests (54%), rice paddy fields (28%), grasslands (17%), river-streams (less than 1%), and villages (less than 1%) based on pre-extirpation records in a previous study. However, habitat attributes of recently reintroduced oriental storks since 2015 remain unknown. To examine habitat use patterns and home ranges of recently reintroduced oriental storks, 2015-2017 tracking data of 17 individuals were used to analyze their spatial attributes with a Kernel Density Estimate method and breeding status. Their habitat use patterns from peripheral to core areas were highly associated with increasing rice paddy fields (26%) and decreasing forested areas (55%). Scale-dependent home ranges were 51% smaller for breeders than for non-breeders on average. Our study results highlight that the habitat use pattern of reintroduced oriental storks seems to be comparable to the historical pattern where the used area is likely to be more centralized for breeders than for non-breeders in South Korea. Furthermore, the direction of habitat management for oriental storks should focus on biodiversity improvement of rice paddy fields with chemical free cultivation and irrigation.

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과제정보

This study was part of a conservation project that included captive propagation and reintroduction of oriental storks through collaboration of Ecological Institute for Oriental Stork in Korea National University of Education and Yesan Oriental Stork Park. This work was funded as an Ex-situ Conservation Project for Endangered Species by the Ministry of Environment, Cultural Heritage Administration, and local governments of South Korea. The present manuscript was partially supported by a research project funded by National Institute of Ecology (grant number: NIE-B-2021-33).

참고문헌

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