翻訳と辞書 Words near each other ・ Formica cunicularia ・ Formica dirksi ・ Formica exsecta ・ Formica fusca ・ Formica fuscicauda ・ Formica incerta ・ Formica japonica ・ Formica Leo ・ Formica lugubris ・ Formica obscuripes ・ Formica pacifica ・ Formica pallidefulva ・ Formica polyctena ・ Formica pratensis ・ Formica rufa ・ Formica rufa group ・ Formica rufibarbis ・ Formica sanguinea ・ Formica subintegra ・ Formica subpicea ・ Formica subsericea ・ Formica talbotae ・ Formica truncorum ・ Formica uralensis ・ Formica yessensis ・ Formicariidae ・ Formicarium ・ Formicarius ・ Formicarius (genus) ・ Formication Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Formica rufa group ： ウィキペディア英語版 Formica rufa group The ''Formica rufa'' group is a sub-generic group within the genus ''Formica'', first proposed by William Morton Wheeler. This group contains the mound-building species of ''Formica'' commonly termed "wood ants" or "thatch-mound ants", which build prominent nests consisting of a mound of grass, litter or conifer needles. The species ''Formica rufa'' or the red wood ant is the type species of this sub group. This particular breed of ant can inhabit open wood with both hard and soft woods, dense pine forests, and even moor land. Workers are polymorphic, the largest reaching about 10 millimetres long. They can produce formic acid in their abdomens and eject it 12 centimetres in the air when threatened.〔Dr Timothy Batchelor (Msu.edu - Southern red wood ant Formica rufa )〕 The only function of males is to mate in flight with queens.〔 Species previously attributed to the ''Microgyna'' group were transferred to the Rufa group by the Wheelers in 1986. == Colonies == The genetic relations in ''F. rufa'' group colonies can be complex. Colonies can be polygynous (having multiple queens) and these are often polydomous (having multiple nests per colony).〔 Queens may be singly or multiply mated, and in polygynous colonies may or may not be related.〔 Colonies are rarely, if ever, independently formed. They either bud off from existing colonies, or are formed by temporary social parasitism of ''F. fusca'' colonies; a ''rufa'' queen ousts the existing queen, lays eggs, and the ''fusca'' workers raise her offspring until the nest is taken over.〔 Some species in the ''F. rufa'' group sometimes form enormous "supercolonies" consisting of hundreds or thousands of nests. The largest documented example is an ''F. yessensis'' colony in Japan covering 2.7 km2 containing an estimated 306 million workers and 1 million queens.〔 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「Formica rufa group」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.