消落带土壤动物群落维持机制探索

Exploration for the Maintenance Mechanism of Hydro-Fluctuation Belt Soil Fauna Community

为增进对消落带土壤动物群落维持机制的了解,分别于2022年6月、7月、8月、10月在白夹溪典型消落带进行野外调查采样。结果表明:消落带土壤动物群落在组建与维持过程中存在物种迁移和生态位分化两种机制,这两种机制的重要性与水位变化导致的生境连通度变化有关。由于目前的研究方法无法兼顾多度与丰富度,未来应尽可能在方法上进行完善,以更为精确地理解土壤动物的群落组成与维持机制。

In order to enhance our understanding of the maintenance mechanisms of soil fauna communities in hydro-fluctuation belt,this study conducted field investigations and sampling in a typical hydro-fluctuation belt in Baijiaxi in June,July,August,and October 2022.The results indicate that there are two main mechanisms,dispersal and niche processes,in the formation and maintenance of soil fauna communities in hydro-fluctuation belt,and the importance of these mechanisms is related to changes in habitat connectivity caused by water level fluctuations.As current methods can't account for both richness and abundance,further studies should refine the methodological scale to better understand the community composition and maintenance mechanisms of soil fauna.