• 关键词：群落结构  岛屿区系平衡模型  功能参数  群集速度  PFU  挂片

• 基金项目：

• 金琼贝
• 东北师范大学环境科学研究所, 长春

• 张然
• 东北师范大学环境科学研究所, 长春

• 王敬恒
• 东北师范大学环境科学研究所, 长春

• 摘要：在水温20—50℃范围内,应用PFU和挂片法收集原生动物群落。根据MacArthur-Wilson区系平衡模型S_i=S_aq(1-e^-GT,用最小二乘法迭代,求得不同温度下群集过程的三个功能参数:S_aq,G,t₉₀％。讨论了原生动物群落结构和功能参数与温度的关系。结果表明,原生动物群落的种类数和数量在30℃左右最多;原生动物群落的结构和功能以30℃为最佳,继续增温将使群落结构变简单,功能下降.

• Abstract：The temperature dependence of functional parameters and the community structure (20-50℃) were studied for colonizing protozoan community by means of polyurethane foam unit(PFU) and glass slide. According to the MacArthur-Wilson equilibrium model, three functional parameters (Seq.G and t) were calculated using the least square method. The maxima of abundance, number of species, frequency of species and colonization rate occurred around 30℃, above which the community structure became simple and its function descended.

• Key words：community structure  colonization rate  temperature  Mac Arthur-Wilson equilibrium model  protozoan  polyurethane foam unit.

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