南极菲尔德斯半岛地区土壤原生动物生态学研究

ECOLOGICAL STUDIES ON THE SOIL PROTOZOANS OF THE FILDES PENINSULA, ANTARCTICA

作者于 1 994年 1 2月至 1 995年 2月设置 1 3个采样站 ,对南极菲尔德斯半岛地区土壤原生动物进行了研究。共观察到原生动物 37种 ,其中 :鞭毛虫 1 1种 ,肉足虫 9种 ,纤毛虫 1 7种 ;优势种为梨波豆虫 ,球波豆虫 ,小滴虫 ,聚滴虫 ,跳侧滴虫 ,磷壳虫和钩刺斜管虫 ;原生动物密度在采样站间的变化范围在 33- 577个 /g干土之间 ,格鲁玻科湖岸边土壤站最低 ,而阿德雷岛苔藓下土壤站最高 ,回归分析表明 :土壤原生动物密度与土壤含水量呈显著性直线相关。

Soil protozoans of Fildes Peninsula, Antarctica were investigated from December, 1994 to February, 1995. 37 species of protozoans were observed, among which there were 11 species of Flagellates, 9 species of Sarcodina and 17 species of Ciliates. Bodo edax, Bodo globosus, Monas minims, Monas socialis, Pleuromonas jaculans, Euglypha denticulata and Chilodonella uncinata were predominant. The density of the protozoans in 13 sampling sites ranged from 33 to 577 ind./g dried soil. A significant linear correlation between positive protozoan density and soil moisture was found.