甘肃尕海湿地冬季肉鞭虫物种多样性研究

Studies on Species Diversity of Amoebae and Flagellates in Gahai Wetland of Gansu Province in Winter

自2011年10月至2012年1月,用"非淹没培养皿法"和活体观察法对冬季尕海湿地内肉鞭虫物种多样性和群落特征进行了研究.共鉴定到肉鞭类原生动物87种,隶属于2亚门6纲13目26科39属,其中包括6个未定名种.在鞭毛亚门中眼虫目和动基体目为优势类群,物种数分别占该亚门物种总数的38.18%和25.45%.肉足亚门中变形目为优势类群,物种数占该亚门物种总数的62.5%.腰鞭目物种为该地区罕见类群,只有1属1种.研究结果表明,尕海湿地内肉鞭虫物种丰富,物种分布与海拔和样点湿度无明显关系,而与样点内生境的温度呈显著负相关性.

Species diversity of amoebae and flagellates in Gahai wetland was studied with ＂non-flooded petri dish method＂ and in vivo observation from October 2011 to January 2012.In addition to 6 unnamed species,total 81 species,belonging to 2 subphylums,6 classes,13orders,26 families and 39 genera,were identified.Euglenida and Kinetoplastida are the dominant groups,occupied 38.18% and 25.45% respectively in Mastigophora.And amoebida is the dominant group（62.5%） in Sarcodina.The results showed that Dinoflagellida was rare community in this area with only one species,one genus found.Results of the studies indicated that there is abundant species in Gahai wetland,and the species distribution has an obvious negative relationship to the temperature of various sampling sites,but no significant relationship with the altitude or humidity of the sampling site.