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Habitat selection and bird community in a mature beech forest

Research Project

Project/Area Number 06640823
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 生態
Research InstitutionHimeji Institute of Technology

Principal Investigator

EZAKI Yasuo  Himeji Institute of Technology, Institute of Natural and Environmental Sciences, Associate Professor, 自然・環境科学研究所, 助教授 (10244691)

Project Period (FY) 1994 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1996: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1995: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1994: ¥600,000 (Direct Cost: ¥600,000)
Keywordsbird community / habitat selection / imdividual / beech forest / territory / cavity-nesting / gap / snow-melting / 相互作用
Research Abstract

A study plot of 10ha was set up in a mature beech forest at Kaya-no-daira in north-eastern part of Nagano Prefecture. Birds were captured and color-banded for individual identification. I collected data on breeding performances of birds starting from territory establishment in May to fledging of the latest young in July for three years, with all other kinds of behavioral data including foraging and interactions. As the plot is covered with deep snow during winter, only small portion of breeding bird species (mainly cavity-nesters) winter there. The wintering species, e.g.Parus ater, P.major, Dendrocopos major, Sitta europaea, however, dominated in the breeding community. Two other abundant species (summer visitors) were Ficedula narcissina and Emberiza variabilis. The former is a cavity-nester and the latter is a nester in sasa-bush. The abundant six species formed territories all over the plot, while some other species, e.g.Cettia diphone, E.spodocephala, had territories confined to t … More he forest-edge and canopy gaps, which suggests that canopy gaps supplied edge-dwelling species with breeding habitats within the forest. Some males of the six abundant species formed territories in the plot for more than a year. In these cases, the positions of the territories of a male were almost the same between years, suggesting that individual males could select habitats on the Principle 'settle where you bred before.'The six abundant species were generally segregated vertically in their foraging positions. But this segregation collapsed with snow-melting and foliation in mid-May ; all the species shifted their foraging sites to the foliage and repeatedly attacked leaves of beech. This shift is probably related to the flush of leaf-eating insects at this period, and suggests the existence of an important process determining the bird community structure during the severe, food-poor period before snow-melting. Existence of interspecific competition between cavity-nesters for nest-cavities was also suggested. Less

Report

(4 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • 1994 Annual Research Report
  • Research Products

    (2 results)

All Other

All Publications (2 results)

  • [Publications] 堀田 昌伸, 江崎 保男, 馬場 隆: "長野県北部のブナ林とカラマツ林における繁殖期の鳥類群集の比較" 長野県自然保護研究所紀要. 1. ((印刷中))

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Hotta, M., Ezaki, Y.and Banba, T.: "Breeding bird communities in a beech forest and a larch plantation in northern Nagano." Bulletin of Institute of Nature Conservation, Nagano 1. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary

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Published: 1994-04-01   Modified: 2016-04-21  

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