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Plants with lengthened phenophases increase their dominance under warming in an alpine plant community

文献类型： 外文期刊

作者： Chen, Ji 1 ; Luo, Yiqi 6 ; Chen, Yuxin 7 ; Felton, Andrew J. 8 ; Hopping, Kelly A. 10 ; Wang, Rui-Wu 1 ; Niu, Shuli 11 ; Ch 1 ;

作者机构： 1.Northwestern Polytech Univ, Sch Ecol & Environm, Key Lab Space Biosci & Biotechnol, Xian 710072, Peoples R China

2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Peoples R China

3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China

4.Aarhus Univ, Dept Agroecol, DK-8830 Tjele, Denmark

5.Aarhus Univ, Ctr Circular Bioecon, DK-8830 Tjele, Denmark

6.No Arizona Univ, Ctr Ecosyst Sci & Soc, Dept Biol Sci, Flagstaff, AZ 86011 USA

7.Xiamen Univ, Coll Environm & Ecol, Xiamen 361102, Peoples R China

8.Utah State Univ, Dept Wildland Resources, Logan, UT 84322 USA

9.Utah State Univ, Ecol Ctr, Logan, UT 84322 USA

10.Boise State Univ, Human Environm Syst, Boise, ID 83725 USA

11.Chinese Acad Sci, Synth Res Ctr Chinese Ecosyst Res Network, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China

12.Yunnan Univ, Sch Ecol & Environm Sci, Kunming 650091, Yunnan, Peoples R China

13.Jiangsu Acad Agr Sci, Circular Agr Res Ctr, Nanjing 210014, Peoples R China

14.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China

15.Aarhus Univ, iCLIMATE Interdisciplinary Ctr Climate Change, DK-4000 Roskilde, Denmark

关键词： Leaf-out; Leaf senescence; First flower; Last flower; Growing season length; Flower duration; Dominance; Plant community composition; Tibetan Plateau

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：7.963； 五年影响因子：7.842 ）

ISSN： 0048-9697

年卷期： 2020 年 728 卷

页码：

收录情况： SCI

摘要： Predicting how shifts in plant phenology affect species dominance remains challenging, because plant phenology and species dominance have been largely investigated independently. Moreover, most phenological research has primarily focused on phenological firsts (leaf-out and first flower dates), leading to a lack of representation of phenological lasts (leaf senescence and last flower) and full phenological periods (growing season length and flower duration). Here, we simultaneously investigated the effects of experimental warming on different phenological events of various species and species dominance in an alpine meadow on the Tibetan Plateau. Warming significantly advanced phenological firsts for most species but had variable effects on phenological lasts. As a result, warming tended to extend species' full phenological periods, although this trend was not significant for all species. Experimental warming reduced community evenness and differentially impacted species dominance. Shifts in full phenological periods, rather than a single shift in phenological firsts or phenological lasts, were associated with changes in species dominance. Species with lengthened full phenological periods under warming increased their dominance. Our results advance the understanding of how altered species-specific phenophases relate to changes in community structure in response to climate change.

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