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首页> 外文期刊>Science >Novel trophic interactions under climate change promote alpine plant coexistence
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Novel trophic interactions under climate change promote alpine plant coexistence

机译：气候变化下的新型营养互动促进高山植物共存

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摘要

Herbivory and plant defenses exhibit a coupled decline along elevation gradients. However, the current ecological equilibrium could be disrupted under climate change, with a faster upward range shift of animals than plants. Here, we experimentally simulated this upward herbivore range shift by translocating low-elevation herbivore insects to alpine grasslands. We report that the introduction of novel herbivores and increased herbivory disrupted the vertical functional organization of the plant canopy. By feeding preferentially on alpine plants with functional traits matching their low-elevation host plants, herbivores reduced the biomass of dominant alpine plant species and favored encroachment of herbivore-resistant small-stature plant species, inflating species richness. Supplementing a direct effect of temperature, novel biotic interactions represent a neglected but major driver of ecosystem modifications under climate change.
机译：食草动物和植物防御沿着高程梯度耦合下降。然而，目前的生态均衡可能会在气候变化下破坏，而且动物的速度较快地偏移而不是植物。在这里，我们通过将低升高的草食昆虫转移到高山草原，通过实验模拟这种向上的食草途径。我们报告说，新型食草动物和增加的食草动物的引入扰乱了植物冠层的垂直功能组织。通过优先喂养具有与其低升高宿主植物匹配的功能性状的高山植物，食草动物降低了显性高山植物物种的生物量，并青睐耐食性小植物物种，充气物种丰富性膨胀。补充温度的直接影响，新的生物相互作用代表了忽视的，但在气候变化下的生态系统修改的主要驱动因素。

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  • 来源
    《Science》 |2020年第6523期|1469-1473|共5页
  • 作者

    Descombes Patrice; Pitteloud Camille; Glauser Gaetan; Defossez Emmanuel; Kergunteuil Alan; Allard Pierre-Marie; Rasmann Sergio; Pellissier Loic;

  • 作者单位

    Swiss Fed Inst Technol Inst Terr Ecosyst Landscape Ecol CH-8092 Zurich Switzerland|Swiss Fed Inst Forest Snow & Landscape Res WSL Unit Land Change Sci CH-8903 Birmensdorf Switzerland|Univ Fribourg Unit Ecol & Evolut CH-1700 Fribourg Switzerland;

    Swiss Fed Inst Technol Inst Terr Ecosyst Landscape Ecol CH-8092 Zurich Switzerland|Swiss Fed Inst Forest Snow & Landscape Res WSL Unit Land Change Sci CH-8903 Birmensdorf Switzerland;

    Univ Neuchatel Neuchatel Platform Analyt Chem CH-2000 Neuchatel Switzerland;

    Univ Neuchatel Inst Biol Lab Funct Ecol CH-2000 Neuchatel Switzerland;

    UMR 1121 UL INRAE Lab Agron & Environm F-54518 Vandoeuvre Les Nancy France;

    Univ Geneva CMU Sch Pharmaceut Sci CH-1211 Geneva Switzerland|Univ Geneva CMU Inst Pharmaceut Sci Western Switzerland ISPSW CH-1211 Geneva Switzerland;

    Univ Neuchatel Inst Biol Lab Funct Ecol CH-2000 Neuchatel Switzerland;

    Swiss Fed Inst Technol Inst Terr Ecosyst Landscape Ecol CH-8092 Zurich Switzerland|Swiss Fed Inst Forest Snow & Landscape Res WSL Unit Land Change Sci CH-8903 Birmensdorf Switzerland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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