Niche and Interspecific Association of Dominant Protozoan Species Under Different Hydrologic Periods in the Mitika Wetland of Tibet,China

【Objective】This study aims to explore the niche and interspecific association of dominant species of protozoa community under different hydrologic periods in the Mitika Wetland National Nature Reserve of Tibet,China,to reveal the resource utilization status,functional status and ecological adaptability of the dominant species of protozoa community in different hydrologic periods,and to provide basis for further study on the stability and spatial distribution pattern of protozoan community in Mitika Wetland.【Method】According to the characteristics of ecological environment,functional zoning and gradient structure of Mitika wetland,14 representative sampling sites were set for sample collection. A total of168 water samples were collected using 25 # standard plankton net in July (wet season) and October (dry season),2018.The niche and interspecific association among the dominant species were analyzed via the niche breadth,niche overlap,ecological response rate, overall interspecific connections, χ~2-test, associ