Foliar fungi and plant diversity drive ecosystem carbon fluxes in experimental prairies

Kohli Mayank; Henning Jeremiah A.; Borer Elizabeth T.; Kinkel Linda; Seabloom Eric W.

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Foliar fungi and plant diversity drive ecosystem carbon fluxes in experimental prairies

机译：叶面真菌和植物多样性驱动生态系统在实验大草原中的生态系统碳通量

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Plant diversity and plant-consumer/pathogen interactions likely interact to influence ecosystem carbon fluxes but experimental evidence is scarce. We examined how experimental removal of foliar fungi, soil fungi and arthropods from experimental prairies planted with 1, 4 or 16 plant species affected instantaneous rates of carbon uptake (GPP), ecosystem respiration (R-e) and net ecosystem exchange (NEE). Increasing plant diversity increased plant biomass, GPP and R-e, but NEE remained unchanged. Removing foliar fungi increased GPP and NEE, with the greatest effects at low plant diversity. After accounting for plant biomass, we found that removing foliar fungi increased mass-specific flux rates in the low-diversity plant communities by altering plant species composition and community-wide foliar nitrogen content. However, this effect disappeared when soil fungi and arthropods were also removed, demonstrating that both plant diversity and interactions among consumer groups determine the ecosystem-scale effects of plant-fungal interactions.

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来源
《Ecology letters》 |2021年第3期|共11页
作者
Kohli Mayank; Henning Jeremiah A.; Borer Elizabeth T.; Kinkel Linda; Seabloom Eric W.;
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作者单位

Univ Minnesota Twin Cities Dept Ecol Evolut &

Behav St Paul MN 55455 USA;

Univ Minnesota Twin Cities Dept Ecol Evolut &

Behav St Paul MN 55455 USA;

Univ Minnesota Twin Cities Dept Ecol Evolut &

Behav St Paul MN 55455 USA;

Univ Minnesota Twin Cities Dept Plant Pathol St Paul MI USA;

Univ Minnesota Twin Cities Dept Ecol Evolut &

Behav St Paul MN 55455 USA;

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原文格式 PDF
正文语种 eng
中图分类普通生物学;
关键词
biodiversity loss; biodiversityamp; 8208; ecosystem function; consumer effects; ecosystem CO2 fluxes; plantamp; 8208; herbivore interaction; plantamp; 8208; pathogen interaction;

机译：生物多样性损失;生物多样性＆amp;8208;生态系统功能;消费者效应;生态系统二氧化碳助焊剂;植物＆amp;8208;食草动物相互作用;植物＆amp;8208;病原体互动;

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Foliar fungi and plant diversity drive ecosystem carbon fluxes in experimental prairies

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