• 关键词：原生动物群落  重金属污染  冗余分析  生态监测  汞铊矿

• 基金项目：国家自然科学基金(No.30860025);贵州省中长期科技规划重大专项和重点领域培育项目(No.2008012);贵州师范大学博士科研启动费;贵州省科技厅科学技术基金(No.2009-2033)

• 杨再超
• 贵州师范大学生命科学学院, 贵阳 550001

• 王智慧
• 贵州师范大学生命科学学院, 贵阳 550001

• 张朝晖
• 贵州师范大学生命科学学院, 贵阳 550001;贵州省山地环境信息系统与生态环境保护重点实验室, 贵阳 550001

• 摘要：应用群落多样性特征指数和冗余分析法(RDA),对黔西南滥木厂汞铊矿的矿渣、废石、矿体和附近的石灰岩上的藓类附生原生动物与重金属污染的关系进行研究.经显微镜检,共发现藓类附生原生动物群落物种数为75种,原生动物丰度范围在2～504个·g^-1.群落多样性指数结果表明,矿渣的重金属污染最严重.RDA分析结果表明,重金属污染对藓类附生原生动物群落结构变化有明显的影响,有些种类对重金属污染十分敏感或有一定的耐性.因此,藓类附生原生动物群落可用来监测矿区生态系统的重金属污染.

• Abstract：By using a community diversity index and redundancy analysis (RDA),the protozoa communities living on mosses and their relationships with heavy metal pollution were investigated from slags,abandoned ores,orebodies and nearby limestones in the Lanmuchang Hg-Tl mineralized area,southwest Guizhou. Atotal of 75 taxa were identified by microscope. The protozoa species had an abundance range from 2 individuals·g^-1 to 504 individuals·g^-1 fresh weight of moss. The slag sites were most severely contaminated by heavy metals. The structure of the protozoa community was dramatically affected by heavy metal pollution. Some species were found to be sensitive or resistant to heavy metal pollution. Therefore,the protozoa communities could be used to monitor heavy metal pollution in mineralized ecosystems.

• Key words：protozoa communities  heavy metal pollution  redundancy analysis  ecological monitoring  Hg-Tl mine

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