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ACOMS+ 및 학술지 리포지터리 설명회

  • 한국과학기술정보연구원(KISTI) 서울분원 대회의실(별관 3층)
  • 2024년 07월 03일(수) 13:30
 

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  • ENGLISH
  • P-ISSN2287-8327
  • E-ISSN2288-1220
  • SCOPUS, KCI

Foraging Habitat Preferences of Herons and Egrets

Journal of Ecology and Environment / Journal of Ecology and Environment, (P)2287-8327; (E)2288-1220
2007, v.30 no.3, pp.237-244
최유성 (국립생물자원관)
권인기 (경희대학교)
유정칠 (경희대학교)

Abstract

We investigated the foraging habitat preferences of heronsand egrets in an agricultural area inAsan city, Chungcheongnam-do, Korea. In the study area, rice fields were the most abundant habitat ype (86.8%)and total suitable feding habitat was greater in the northern area (59.0%) than the southern area (2.5%) ofthe colony. Most feding herons and egrets were located in the northern area of the colony. The number offeding individuals in a given area was related to the availa ble feding area (Pearson corelation, r=0.73,p< 0.01 for field habitats;r=0.901, p< 0.01 for freshwater habitats). Feding habitat preferences difered amongspecies. Grey herons (Ardea cinerea ), great egrets (Egreta lba ), and black-crowned night herons (Nycticoraxnycticorax) used reservoirs and itches. However, intermediate gret s (E.intermedia ) and catle grets ( Bubulcusibis ) were dependent on rice fields. The litle gret ( E. garzeta ) was a habitat generalist using al types ofhabitats. The two largest species, grey herons and great egrets, fed at deper site than litle grets and foragedin deper sites in reservoirs than in ditches (.2-test,.23=26.6 and p< 0.01 for grey herons, .23 =17.5 andp< 0.01 for great egrets). Al species displayed seasonal changes in feding habitat use and these changes wererelated with changes in availability of eding habitats.

keywords
Ardeidae, Egrets, Feding habitat, Foraging, Habitat preferences, Herons.Choi, Yu-Seong et al. J. Ecol. Field Biol. 30 (3) 238in the study area were from this colony. The breding colony islocated near a reservoir that many herons and egrets use as af, Ardeidae, Egrets, Feding habitat, Foraging, Habitat preferences, Herons.Choi, Yu-Seong et al. J. Ecol. Field Biol. 30 (3) 238in the study area were from this colony. The breding colony islocated near a reservoir that many herons and egrets use as af

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(2007) Received May 29 Accepted July 25,

Journal of Ecology and Environment