シジュウカラの社会組織に関する生態学的研究 : I.冬期群の基本構造

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タイトル別名
  • ECOLOGICAL STUDY OF SOCIAL ORGANIZATION IN THE GREAT TIT, PARUS MAJOR L. : I. BASIC STRUCTURE OF THE WINTER FLOCKS
  • シジュウカラの社会組織に関する生態学的研究-1-冬期群の基本構造
  • シジュウカラ ノ シャカイ ソシキ ニ カンスル セイタイガクテキ ケンキュウ

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抄録

SAITOU, Takashi (Inst. Biol. Sci., Univ. Tsukuba, Ibaraki). 1978. Ecological study of social organization in the Great Tit, Parus major L. I. Basic structure of the winter flocks. Jap. J. Ecol., 28 : 199-214. The winter flocks were normally found from late September to early March and could be classified into two types, according to the composition of flocks : basic flock and compound flock. The basic flocks were constant in membership throughout the winter as far as all the members survived until the following spring, whereas the compound flocks were formed through the aggregation of basic flocks. The basic flocks had neither a particular sex composition nor a specific age composition. They did not originate from the family flocks, nor formed through the aggregation of pairs. However. the basic flocks had a basic structure in which a previous breeding pair formed the nucleus and young birds associated with it. The size of basic flocks varied from two to sixteen and was determined by the number of young associated with the nucleus. The members of basic flocks kept strictly together during winter and the basic flocks never divide into sub-unit as a flock, so it is considered that the basic flock is the social unit of the Great Tit in the non-breeding season. like the pair in the breeding season.

収録刊行物

  • 日本生態学会誌

    日本生態学会誌 28 (3), 199-214, 1978

    一般社団法人 日本生態学会

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