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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 Species homogeneity ： ウィキペディア英語版 Species homogeneity In ecology, species homogeneity is a lack of biodiversity. Species richness is the fundamental unit in which to assess the homogeneity of an environment. Therefore, any reduction in species richness, especially endemic species, could be argued as advocating the production of a homogenous environment. ==Monocultures== :Homogeneity in agriculture and forestry; in particular, industrial agriculture and forestry use a limited number of species.〔Luc Hens and Emmanuel K. Boon (Causes of Biodiversity Loss: a Human Ecological Analysis ), MultiCiencia. Human Ecology Department, Belgium.〕 About 7,000 plants (2.6% of all plant species) have been collected or cultivated for human consumption. Of these, a mere 200 have been domesticated and only a dozen contribute about 75% of the global intake of plant-derived calories. :95% of world consumption of protein derives from a few domesticated species, ie poultry, cattle and pigs. There are about 1,000 commercial fish species, but in aquaculture fewer than 10 species dominate global production. Human food production therefore rests on the tips of pyramids of biodiversity, leaving the majority of species not utilised and not domesticated.〔(Food Security and Biodiversity. Biodiversity in Development ). Accessed 17/11/09〕 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「Species homogeneity」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.