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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 Mound-building termites ： ウィキペディア英語版 Mound-building termites Mound-building termites or just mound builders are a group of termite species that live in mounds. This group of termites live in Africa, Australia and South America. The mounds sometimes have a diameter of 30 metres. Most of the mounds are found in well drained areas. Termite mounds usually out live the colonies themselves. If the inner tunnels of the nest are exposed it is usually dead, however, sometimes other colonies occupy a mound after the death of the original builders. The new colonizers may be of the same or a different species. ==Mound Structure== The structure of the mounds can be very complicated. Inside the mound is an extensive system of tunnels and conduits that serves as a ventilation system for the underground nest. In order to get good ventilation, the termites will construct several shafts leading down to the cellar located beneath the nest. The mound is built above the subterranean nest. The nest itself is a spheroidal structure consisting of numerous gallery chambers. They come in a wide variety of shapes and sizes. Some, like ''Odontotermes'' termites build open chimneys or vent holes into their mounds, while others build completely enclosed mounds like ''Macrotermes''. The ''Amitermes'' (Magnetic termites) mounds are created tall, thin, wedge-shaped, usually oriented north-south. 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「Mound-building termites」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.