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한국생태학회 / v.20, no.6, 1997년, pp.405-411 
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다른 두 서식지에서 섬참새의 채식행동
( Feeding Behavior of the Russet Sparrow Passer rutilans in Two Different Habitats ) |
| 채희영; 서울대학교 농업생명과학대학 임업과학연구소;
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| 초 록 |
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| Feeding behavior of the Russet Sparrow Passer rutilans was studied in two different types of habitats, shelter belts and isolated forests, in south-eastern Hokkaido, Japan, during the breeding seasons of 1995 and 1996. Predominant foods were determined as Caterpillar, Coleoptera, Diptera, Ephemeropera, Odonate and some other insects. The composition of the nestiling foods were not the same by season, region, and year. Larger foods in size were used by birds in isolated forests more frequently than in shelter belts. Amount of food per feeding was significantly larger in isolated forests than in shelter belts. Although food supply were more abundant in isolated forests than in shelter belts, the feeding frequency did not significantly differ between these two habitats. The nest density was higher in isolated forests than in shelter belts. Results of this study indicate that when the feeding condition is poor, birds tend not show specific food selection behavior, the feeding range is therefore larger, and the feeding interval is longer. Contrarily, the birds show a specific food selection behavior when they are in good feeding condition, the feeding range is therefor smaller and the feeding interval decreases. |
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| 키워드 |
| Feeding behavior;Habitat;Isolated forests;Russet Sparrow;Shelter belts; |
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The Korean Journal of Ecology / v.20, no.6, 1997년, pp.405-411
한국생태학회
ISSN : 1225-0317
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199711919962836)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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