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Vertical nest stratification and breeding success in a six mixed-species heronry in Taeseong, Chungbuk, Korea

  • Park, Shi-Ryong (Department of Biology Education, Korean National University of Education) ;
  • Kim, Kwan-Yong (Department of Animal Science, Sahmyook University) ;
  • Chung, Hoon (Department of Biology, Kyung Hee University) ;
  • Choi, Yu-Seong (Department of Biology, Kyung Hee University) ;
  • Sung, Ha-Cheol (Department of Biology, Chonnam National University)
  • 투고 : 2010.02.05
  • 심사 : 2010.10.31
  • 발행 : 2011.03.31

초록

In 2001, we conducted a study to assess the effects of differential arrival times and nest-site selection on reproductive performance in a mixed-species heronry consisting of six species in Taeseong-ri, Chungbuk, Korea. We recorded the arrival dates, nest heights, clutch sizes, and brood sizes after 15-20 days of the age of the birds' chicks. The grey herons and cattle egrets arrived first and last, respectively, on the colony site. In the homogenous vegetation structure of the breeding site, the pitch pine trees (Pinus rigida) were mainly used for building nests on 48 of the 50 pine trees (96%). The breeding species vertically stratifies the nest sites according to their body size, except for the cattle egrets and black-crowned night herons that nested at sites higher than those predicted from their body size. The mean nest success rates of the six species under study were positively correlated with the mean nest heights. Our findings suggest that aggressive interspecific interactions among neighbors influence nest-site selection to enhance breeding success.

키워드

참고문헌

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피인용 문헌

  1. 백로류 집단번식지의 식물사회 특성 vol.24, pp.5, 2011, https://doi.org/10.14249/eia.2015.24.5.499
  2. Change in nest site and population size of great cormorants (Phalacrocorax carbo) in relation to different Ardeidae species in inland breeding sites in Korea vol.43, pp.3, 2011, https://doi.org/10.1186/s41610-019-0125-4