Beta diversity of grasshoppers and predatory beetles across steppes is closely associated with altitude and average annual precipitation in Ningxia, northwest China

文献类型： 外文期刊

第一作者： Zhang, Haixiang

作者： Zhang, Haixiang;Cao, Ziyu;Wang, Ying;Zhang, Rong;Wei, Shuhua;Zhang, Haixiang;Ban, Liping;Shi, Xiaoyu;Cheng, Rui;Cao, Ziyu

作者机构：

关键词： Ningxia Steppe; Grasshopper; Predatory beetle; Beta diversity; Environmental factors

期刊名称：GLOBAL ECOLOGY AND CONSERVATION （ 影响因子：4.0； 五年影响因子：4.3 ）

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年卷期： 2024 年 51 卷

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收录情况： SCI

摘要： Beta diversity analysis was conducted to identify factors affecting the beta diversity patterns of grasshoppers and predatory beetles in steppes and the primary environmental drivers of these patterns in Ningxia, northwest China. Data on the insects and environment of 42 steppe monitoring areas in Ningxia were analyzed. A total of 4335 insects of 50 species were captured from 42 monitoring areas, including 743 grasshoppers and 3592 predatory beetles belonging to 27 and 23 species, respectively. Non-metric multidimensional scale (NMDS) indicated a high similarity in the grasshopper communities between temperate meadow steppe (TMS) and temperate steppe (TS). Additionally, there was a high similarity among the predatory beetle communities between temperate desert steppe (TDS) and TS. Redundancy analysis (RDA) showed altitude (AL) and average annual precipitation (PP) could explain the interaction between insects and the environment to a large extent. Among the four steppes, the beta diversity of grasshoppers was predominantly driven by the richness component. In TMS and temperate steppe desertification (TSD), the beta diversity of predatory beetles was dominated by the richness component, whereas in TS and TDS, the beta diversity of predatory beetles was dominated by the turnover component. Mantel test indicated that a difference in the beta diversity of the grasshoppers and predatory beetles correlated positively with AL ( P <0.001) and PP ( P <0.01). For grasshoppers, these were significantly and positively correlated with soil capillary porosity (SCP) ( P <0.001), and for predatory beetles, the differences were significantly and positively correlated with the number of other vegetation species (OS) ( P <0.01). Finally, when protecting predatory beetles and controlling grasshopper populations across different steppe types, it is necessary to analyze the specific situation and consider the driving ability of each environmental factor on different insect taxa.

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