Aggressive Behaviours of Territorial Cichlid Fishes against Larger Heterospecific Intruders

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概要

• 論文の詳細を見る

• Aggressive behaviours at nesting territories of cichlid fishes were observed in Lake Tanganyika. Subject fishes were Neolamprologus toae, Tropheus moorii, Ophthalmotilapia nasutus, Limnotilapia dardennii and Petrochromis polyodon. They attacked and repelled various sized heterospecific fishes from the territories. Against much larger intruders, the fishes quickly approached and pecked them. The larger fishes never conducted counter-attack, and left the territories. Such pecking behaviour was regarded as a kind of attack, but greatly different from attacks in interspecific territorialities of cichlids reported hitherto, which are usually organized in size-dependent dominance relationships. This paper discusses the domination of the nesting territory owners in a context of `symmetry' of territoriality.

• 京都大学の論文

著者

• Kohda Masanori

  Laboratory Of Animal Sociology Department Of Bio- And Geosciences Graduate School Of Science Osaka C

• Masanori Kohda

  Laboratory Of Animal Sociology Department Od Biology Faculty Of Science Osaka City University

• Sima Keita

  Centre du Recherche en Hydrobiologie

• Sima Keita

  Centre De Recherche En Sciences Naturelles Station D'uvira

• Mboko Sima

  Centre du Recherche en Hydrobiologie

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