The influence of food supplement on the home range of the ant Formica (Serviformica) japonica MOTSCHULSKY

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  • HAGIMOTO Mari
    Department of Biology, Faculty of Science, Nara Women's University:(Present address)Shin-Nippon Meteorological & Oceanographical Consultant Co. Ltd.
  • WADA Keiji
    Department of Biology, Faculty of Science, Nara Women's University

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  • クロヤマアリの行動圏に対する餌資源の影響
  • クロヤマアリ ノ コウドウケン ニ タイスル エサ シゲン ノ エイキョウ

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Abstract

The influence of food supplement on the home ranges of three colonies of the ant Formica (Serviformica) japonica was studied by the group-marking method in a grassland in spring and autumn, 1992,in Nara, western Japan. When bait (honey syrup) was supplied at one place in the home range of one colony, the neighboring colonies expanded their home ranges toward the bait site within a few days both in spring and autumn. With the food supplement in autumn, the home range of a colony which included the bait site diminished in size, but overlap of home ranges of neighboring colonies expanded to some degree. Thus, the sizes and the degree of overlap of home ranges of individual colonies of F. japonica were changed by the food supply.

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