Browse > Article

Diets and Foraging Tactics of Eurasian Eagle Owls(Bubo bubo) in Two Different Habitat Types  

Nam, Hyun-Young (School of Biological Sciences, Seoul National University)
Lee, Woo-Shin (Department of Forest Sciences, Seoul National University)
Choi, Chang-Yong (Migratory Birds Center, National Park Research Institute)
Publication Information
Korean Journal of Environment and Ecology / v.21, no.1, 2007 , pp. 30-37 More about this Journal
Abstract
Pellets and prey remains were analyzed to compare diets and foraging tactics of Eurasian eagle owls (Bubo bubo) in two different habitat types: forested areas and open fields. Overall 150 prey items of three taxa were identified from 66 pellets and 82 prey remains, and the birds were the most important prey in biomass (78.04%) and in frequency (56.67%). Eurasian eagle owls frequently used rats (Rattus spp.), ring-necked pheasants (Phasianus colchicus), and stripped field mice (Apodemus agrarius), but the ring-necked pheasant was most important in biomass in both habitat types. The owls generally foraged various prey in biomass but the mean mass of vertebrate prey used by the Eurasian eagle owls was 503.3g in central Korea. According to the comparison of diets in the two different habitat types, the owls used bigger and more diverse prey in forested areas than in open fields. In forested areas, the Eurasian eagle owls frequently foraged the pheasants and Mandarin ducks (Aix galericulata), but they preferred prey of particular sizes to prey of particular taxa. In open fields, however, the owls showed opportunistic foraging tactics by selecting many small mammals such as rodents or a few large birds.
Keywords
OPEN FIELDS; FORAGING TACTICS; FORESTED AREAS; PREY REMAINS; PELLETS;
Citations & Related Records
연도 인용수 순위
  • Reference
1 원병오.(1981) 한국동식물도감 제25권 동물편(조류생태) 문교부, 서울, 1126쪽
2 Bontzorlos, V. A., S. J. Peris, C. G. Vlachos and D. E. Bakaloudis(2005) The diet of barn owl in the agricultural landscapes of central Greece. Folia zoologica 54: 99-110
3 Ferguson-Lees, J. and D. A. Christie(2001) Raptors of the world. Houghton Mifflin, New York, 872pp
4 Jaksic, F. and C. D. Marti(1984) Comparative food habits of Bubo owls in Mediterranean-type ecosystems. Condor 86: 288-296   DOI   ScienceOn
5 Konig, C., J. Becking and F. Weick(1999) Owls: a guide to the owls of the world. Yale University Press, New York, 462pp
6 Lin, W. L. and C. C. Yeh(2002) Winter diet ofthe short-eared owl Asio flammeus (Pontoppidan) at the Augu farm and the Tatu rivermouth of Taiwan. Endemic Species Research 4: 63-71
7 Marchesi, L., F. Sergio and P. Pedrini(2002) Costs and benefits of breeding in human-altered landscapes for the eagle owl Bubo bubo. Ibis 144: E164- E177   DOI
8 Martinez, J. A. and I. Zuberogoitia(2001) The response of the eagle owl (Bubo bubo) to an outbreak of the rabbit haemorrhagic disease. Journal fur Ornithologie 142: 204-211   DOI
9 Newton, I.(1986) The sparrow hawk. T & AD Poyser, Calton, 396pp
10 Ontiveros, D., J. M. Pleguezuelos and J. Caro(2005) Prey density, prey detectability and food habits: the case of Bornelli's eagle and the conservation measures. Biological Conservation 123: 19-25   DOI   ScienceOn
11 Swengel, S. R. and A. B. Swengel(1992) Diet of northern saw-whet owls in southern Wisconsin. Condor 94: 707-711   DOI   ScienceOn
12 Toyne, E. P.(1998) Breeding season diet of the goshawk Accipiter gentilis in Wales. Ibis 140: 569-579   DOI   ScienceOn
13 Colwell, R. K. and D. J. Futuyma(1971) On the measurement of niche breadth and overlap. Ecology 52: 567-576   DOI   ScienceOn
14 Heptner, V. G., N. P. Naumov, P. B. Yurgenson, A. A. Siudskii, A. F. Chirkova and A. G. Bannikov(1967) Mammals of the Soviet Union. Vol.II. Vysshaya Shkola Publishers, Moskow, 1550pp
15 Tornberg, R. and A. Colpaert(2001) Survival, ranging, habitat choice and diet of the northern goshawk Accipiter gentilis during winter in northern Finland. Ibis 143: 41-50   DOI   ScienceOn
16 Rodenhouse, N. L., T. W. Sherry and R. T. Holmes(1997) Site-dependent regulation of population size: a new synthesis. Ecology 78: 2025-2042
17 Marti, C. D. and M. N. Kochert(1996) Diet and trophic characteristics of great homed owls in southwestern Idaho. Journal of Field Ornithology 67: 499-506
18 阿部永(1999) 日本産哺乳類頭骨図說, 北海道大學図書刊行會, 札幌市,279pp
19 Penteriani, V., F. Sergio, M. M. Delgado, M. Gallardo and M. Ferrer(2005) Biases in population diet studies due to sampling in heterogeneous environments: a case study with the eagle owl. Journal of Field Ornithology 76: 237-244   DOI
20 김영준(2006) 한국 야생동물 조난원인 유형분석. 서울대학교 대학원 석사논문,103쪽
21 Bennett, D. C., P. E. Whitehead and L. E. Hart(1995) Growth and energy requirements of hand-reared great blue heron (Ardea herodias) chicks. Auk 112: 201-209   DOI
22 Marti, C. D.(1974) Feeding ecology of four sympatric owls. Condor 74: 45-61
23 Sharp, A., L. Gibson, M. Norton, A. Marks, B. Ryan and L. Semeraro(2002) An evaluation of the use of regurgitated pellets and skeletal material to quantify the diet of wedge-tailed eagles, Aquila audax. Emu 102: 181-185   DOI   ScienceOn
24 Lewis, S. B., K. Titus and M R. Fuller(2006) Northern goshawk diet during the nesting season in southeast Alaska. Journal of Wildlife Management 70: 1151-1160   DOI
25 Nowak R.M.(1999) Walker's mammals of the world. Vol. 1. The Johns Hopkins University Press, Batimore, 2015pp
26 Simmons, R. E., D. M. Avery and G. Avery(1991) Biases in diets determined from pellets and remains: correction factors for a mammal and bird-eating raptor. Journal of Raptor Research 25: 63-67
27 Levins, R.(1968) Evolution in changing environments. Princeton University Press, Princeton, 120pp
28 유병호, 원창만, 양병국, 문정숙, 이민(2003) 야생동물 실태조사. 국립환경연구원, 인천, 118쪽
29 Rutz, C.(2003) Assessing the breeding season diet of goshawks Accipiter gentilis: biases of plucking analysis quantified by means of continuous radio-monitoring. Journal of Zoology 259: 209-217   DOI   ScienceOn
30 윤명희, 한상훈, 오홍식, 김장근(2004) 한국의 포유동물. 동방미디어, 서울, 274쪽
31 Lewis, S. B., P. DeSimone, M. R. Fuller and K. Titus(2004) A video surveillance system for monitoring raptor nests in a temperate rainforest environment. Northwest Science 78: 70-74
32 Reynolds, R. T. and E. C. Meslow(1984) Partitioning of food and niche characteristics of coexisting Accipiter during breeding. Auk 101: 761-777   DOI