泾河流域浮游动物群落特征及优势种种间关系  

Characterization of zooplankton communities and the interspecific relationships among dominant species in the Jinghe River Basin, Northwest China

作　　者：王司权 潘保柱 杨子杰 胡恩 张鑫[1] 李刚[1] 赵丹 胡竞翔 WANG Siquan;PAN Baozhu;YANG Zijie;HU En;ZHANG Xin;LI Gang;ZHAO Dan;HU Jingxiang(State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China,Xi'an University of Technology,Xi'an 710048,China;Shaanxi Provincial Academy of Environmental Science,Xi'an 710061,China)

机构地区：[1]西安理工大学西北旱区生态水利国家重点实验室,西安710048 [2]陕西省环境科学研究院,西安710061

出　　处：《应用生态学报》2025年第2期587-595,共9页Chinese Journal of Applied Ecology

基　　金：陕西省重点研发计划重点产业链(群)项目(2024SF-ZDCYL-05-02,2021ZDLSF05-08)资助。

摘　　要：为分析泾河流域浮游动物群落特征以及优势种的种间关系,本研究于2021年秋季(10月)和2022年春季(5月)进行了系统的水生态调查。结果表明:春秋两季共鉴定出浮游动物71属150种,秋季浮游动物物种数和平均密度均小于春季,两季群落结构差异显著。以优势度Y≥0.02为优势种的标准,两季优势种共13种。优势种生态位重叠(O_(ik))分析表明,生境条件较差的秋季生态位重叠(0.455)大于春季(0.381)。方差比率法结果显示,秋季浮游动物优势种总体呈现不显著正联结,春季则呈现显著正联结,表明春季浮游动物群落较为稳定;点相关系数法(Φ)检验结果显示,秋季的显著正负联结比(2.3)小于春季(2.5),表明泾河流域浮游动物群落从秋季到春季发生了正向演替。To analyze the characteristics of zooplankton community and the interspecific relationship of dominant species in Jinghe River Basin, we conducted a systematic water ecology survey in the autumn of 2021(October) and the spring of 2022(May). The results showed that a total of 71 genera and 150 species of zooplankton were identified in spring and autumn. The number of zooplankton species and the average density in autumn were smaller than that in spring. There were significant differences in community structure between the two seasons. There were 13 dominant species in both seasons, according to the criterion of dominance degree Y≥0.02. The results of ecologi-cal niche overlap(O_(ik)) analysis of dominant species showed that the autumn ecological niche overlap(0.455) was greater than the spring(0.381) because of poorer habitat conditions in autumn. Dominant species in autumn showed insignificant positive associations but significant positive associations in spring, indicating that the zooplankton community was more stable in spring. The results of point correlation coefficient(Φ) showed that the significant positive and negative associations in autumn(2.3) were less than those in spring(2.5), indicating positive succession in the zooplankton community in the Jinghe River Basin from autumn to spring.

关 键 词：泾河流域 浮游动物 驱动因子 生态位 种间联结 

分 类 号：Q958.8[生物学—动物学]