Journal of the Korean Society of Environmental Restoration Technology (한국환경복원기술학회지)

The Korea Society of Environmental Restoration Technology (한국환경복원기술학회)
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Comparative Studies on Earthworm Density by Breeding Place Characteristics of Fairy Pitta on Jeju Island

제주도에서 팔색조 번식지 특성에 따른 지렁이 밀도 비교 연구

  • Kim, Eun-Mi (Warm-temperate and Subtropical Forest Research Center, Korea Forest Research Institute) ;
  • Choi, Hyung-Soon (Warm-temperate and Subtropical Forest Research Center, Korea Forest Research Institute) ;
  • Kang, Chang-Wan (The Korea Association For Bird Protection Jeju Branch) ;
  • Min, Dong-Won (Jeju Wildlife Rescue Center) ;
  • Yang, Eun-Jung (Department of Biology, Jeju National University) ;
  • Oh, Mi-Rea (Jeju Wildlife Rescue Center)
  • 김은미 (국립산림과학원 난대아열대산림연구소) ;
  • 최형순 (국립산림과학원 난대아열대산림연구소) ;
  • 강창완 (한국조류보호협회 제주지회) ;
  • 민동원 (제주야생동물구조센터) ;
  • 양은정 (제주대학교 생물학과) ;
  • 오미래 (제주야생동물구조센터)
  • Received : 2014.08.05
  • Accepted : 2014.09.27
  • Published : 2014.10.31
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Abstract

Fairy Pittas use the forest around the valley and Gotjawal as breeding places. This survey was conducted to investigate the characteristic of earthworms, specifically its population density, body size around the breeding site in Gotjawal and the forest around the valley areas from the middle of July to the end of July 2013. A total of 405 individual earthworms were collected in the 100 small established quadrats, in which 315 were found in Gotjawal and 90 were found in the forest around the valley area. The density of earthworms in Gotjawal was significantly higher compared to that forest around the valley area. It was also observed that the body size of earthworms was significantly different between Gotjawal and the forest around the valley area. Proportion of number of individuals which are larger than 7cm in body size was 43%(n=135) in Gotjawal and 84%(n=76) in the forest around the valley area, respectively. Soil area was not important factor to the density of earthworms. We suggest that Gotjawal can be considered as a suitable breeding site for Fairy Pitta because of the richness of its primary food in this area.

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References

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  1. Vertical Distribution and Elevation Preference for the Breeding of Fairy Pittas on Jeju Island, Korea vol.10, pp.11, 2014, https://doi.org/10.3390/f10111010