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Warming limits daytime but not nighttime activity of epigeic microarthropods in Songnen grasslands

文献类型： 外文期刊

作者： Chang, Liang 1 ; Wang, Baifeng 2 ; Yan, Xiumin 3 ; Ma, Linna 4 ; Reddy, Gadi V. P. 5 ; Wu, Donghui 1 ;

作者机构： 1.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Jilin, Peoples R China

2.Jilin Acad Agr Sci, Agrobiotechnol Res Inst, Changchun 130033, Jilin, Peoples R China

3.Guizhou Educ Univ, Sch Geog & Tourism, Guiyang 550018, Guizhou, Peoples R China

4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China

5.Montana State Univ, Dept Res Ctr, Western Triangle Agr Res Ctr, 9546 Old Shelby Rd,POB 656, Conrad, MT 59425 USA

6.Northeast Normal Univ, Jilin Prov Key Lab Anim Resource Conservat & Util, Changchun 130117, Jilin, Peoples R China

7.Northeast Normal Univ, Key Lab Vegetat Ecol, Minist Educ, Changchun 130117, Jilin, Peoples R China

关键词： Warming; Nitrogen addition; Diel variation; Microarthropods; Temperate grassland

期刊名称：APPLIED SOIL ECOLOGY （ 影响因子：4.046； 五年影响因子：4.884 ）

ISSN： 0929-1393

年卷期： 2019 年 141 卷

页码：

收录情况： SCI

摘要： Both climate warming and nitrogen addition have the potential to affect soil fauna. The effect of these changes on the diel variation of soil microarthropods motility remains unknown. In northeastern China, in temperate grasslands with limited moisture and nutrients, epigeic microarthropods were captured by pitfall traps and activity-density and species richness of epigeic Collembola and Oribatida were calculated after four years of simulated environmental change by warming and/or nitrogen addition both in daytime and nighttime. Warming with or without nitrogen addition reduced the total activity-density of epigeic Collembola. However, this effect was pronounced only in daytime, but not nighttime. Epigeic Oribatida was not impacted by warming treatment. Nitrogen addition had no effect on epigeic Oribatida and Collembola. Our results indicate that warming has a pronounced, adverse effect on epigeic Collembola in water-limited temperate grassland and that the effect was microarthropod taxon-specific. We conclude that warming could limit the activity-density of epigeic micro-arthropods' species that are not resistant to water deficiency and these alterations would not be alleviated by concurrent nitrogen deposition.

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