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岩溶溪流原生动物群落生态初步研究

Keywords: 岩溶溪流,原生动物群落,物种多样性,生态类群

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Abstract:

岩溶山区溪流具有一种独特的生态系统类型,维持了丰富的原生动物群落多样性.2006年7ˉ9月在长江重要支流乌江上游8条岩溶山区溪流中,采集原生动物群落标本及水样72份.经室内对水生原生动物培养、分离和鉴定,揭示了该区岩溶溪流原生动物群落具有下述特征(1)原生动物群落物种组成含27科31属42种.(2)原生动物群落含6个功能营养群,其中,原生动物光合营养群(P群),占总数的4.76%;细菌取食者群(B群)占52.38%;腐生营养类群(S群)占4.76%;食藻者类群(A群)占21.43%;非选择性

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