Spatiotemporal variations of tenebrionid beetles (Coleoptera: Tenebrionidae) in the Gobi desert, Northwest China

文献类型： 外文期刊

第一作者： Ren, Jialong

作者： Ren, Jialong;Xin, Weidong;Ren, Jialong;Zhao, Wenzhi;He, Zhibin;Wang, Yongzhen;Pan, Chengchen;Liu, Jiliang;Feng, Yilin;Niu, Yiping

作者机构：

关键词： Gobi desert; precipitation change; tenebrionid beetles; temporal dynamics; spatial pattern

期刊名称：JOURNAL OF ARID LAND （ 影响因子：3.1； 五年影响因子：3.1 ）

ISSN： 1674-6767

年卷期： 2025 年 17 卷 1 期

页码：

收录情况： SCI

摘要： Tenebrionid beetles represent a crucial arthropod taxon in the Gobi desert ecosystems owing to their species richness and high biomass, both of which are essential for maintaining ecosystem health and stability. However, the spatiotemporal variations of tenebrionid beetle assemblages in the Gobi desert remain poorly understood. In this study, the monthly dynamics of tenebrionid beetles in the central part of the Hexi Corridor, Northwest China, a representative area of the Gobi desert ecosystems, were monitored using pitfall trapping during 2015-2020. The following results were showed: (1) monthly activity of tenebrionid beetles was observed from March to October, with monthly activity peaking in spring and summer, and monthly activity periods and peak of tenebrionid beetle species exhibited interspecific differences that varied from year to year; (2) spatial distribution of tenebrionid beetle community was influenced by structural factors. Specifically, at a spatial scale of 24.00 m, tenebrionid beetle community was strongly and positively correlated with the dominant species, with distinct spatial distribution patterns observed for Blaps gobiensis and Microdera kraatzi alashanica; (3) abundance of tenebrionid beetles was positively correlated with monthly mean precipitation and monthly mean temperature, whereas monthly abundance of B. gobiensis and M. kraatzi alashanica was positively correlated with monthly mean precipitation; and (4) the cover of Reaumuria soongarica (Pall.) Maxim. and Nitraria sphaerocarpa Maxim. had a positive influence on the number of tenebrionid beetles captured. In conclusion, monthly variation in precipitation significantly influences the community dynamic of tenebrionid beetles, with precipitation and shrub cover jointly determining the spatial distribution pattern of these beetles in the Gobi desert ecosystems.

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