著者

平野 敏明 樋口 広芳

出版者

The Ornithological Society of Japan

雑誌

日本鳥学会誌 (ISSN:0913400X)

巻号頁・発行日

vol.35, no.2-3, pp.79-80, 1986-12-25 (Released:2007-09-28)

参考文献数

7

被引用文献数

1 1

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A dominance hierarcy of Motacilla wagtails (M. grandis, M. alba, and M. cinerea) and Water Pipits (Anthus spinoletta) was investigated on a stream in Utsunomiya, central Japan, in the winters of 1981-1983. An almost linear hierarchy existed among the species and between sexes, with ranking (most to least dominant) as follows: male M. grandis, female M. grandis, male M. alba, female M. alba, M. cinerea, and A. spinoletta. The proportion of victories by dominants was 100% except for a few encounters (5.7%) between female M. grandis and male M. alba. Dominance status was not necessarily related to their body sizes. Male M. grandis chased the other species more severely and more frequently than the others did.