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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Diacamma ： ウィキペディア英語版 Diacamma ''Diacamma'' is a genus of queenless ants belonging to the subfamily Ponerinae.〔 It is distributed from India to Australia and contains about 24 species.〔 ==Biology== A queen caste does not exist in ''Diacamma''. Unique to this genus, all workers emerge from cocoons with a pair of tiny innervated thoracic appendages ("gemmae") that are homologous with wings. Mutilation leads to a permanent change in lifetime trajectory, because workers lacking gemmae never mate. This is unlike other queenless ants where workers establish a dominance hierarchy to regulate reproduction. In ''Diacamma'' only one worker retains her gemmae in each colony, she is the gamergate (mated egglaying worker), and she bites off the gemmae of newly emerged workers. Mutilation causes the degeneration of the neuronal connections between the sensory hairs on the gemma's surface and the central nervous system, and this may explain the irreversibility of modifications in individual behaviour.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Diacamma」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.