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Ecosystem engineer : ウィキペディア英語版
Ecosystem engineer

An ecosystem engineer is any organism that creates, significantly modifies, maintains or destroys a habitat. These organisms can have a large impact on the species richness and landscape-level heterogeneity of an area. 〔(Justin P, Clive G Jones and Alexander S Flecker (2002). An ecosystem engineer, the beaver, increases species richness at the landscape scale. Ecosystems Ecology 132: 96-101. )〕 As a result, ecosystem engineers are important for maintaining the health and stability of the environment they are living in. Since all organisms impact the environment they live in in one way or another, it has been proposed that the term "ecosystem engineers" be used only for keystone species whose behavior very strongly affects other organisms 〔(PD (2012). Ecosystem Engineers: wildlife that create, modify and maintain habitats. ECOLOGY.INFO #12 )〕
==Types==
Jones et al.〔Jones CG, Lawton JH and Shachak M 1994. Organisms as ecosystem engineers. ''Oikos'' 69: 373-386〕 identified two different types of ecosystem engineers:

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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