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Ecology
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Ecology
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Ecology
Article . 2020
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Ecology
Article . 2021
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Resource‐enhancing global changes drive a whole‐ecosystem shift to faster cycling but decrease diversity

Authors: Risto Virtanen; Susan Harrison; W. Stanley Harpole; W. Stanley Harpole; Anu Eskelinen; Anu Eskelinen; Yann Hautier; +1 Authors

Resource‐enhancing global changes drive a whole‐ecosystem shift to faster cycling but decrease diversity

Abstract

AbstractMany global changes take the form of resource enhancements that have potential to transform multiple aspects of ecosystems from slower to faster cycling, including a suite of both above‐ and belowground variables. We developed a novel analytic approach to measure integrated ecosystem responses to resource‐enhancing global changes, and how such whole ecosystem slow‐to‐fast transitions are linked to diversity and exotic invasions in real‐world ecosystems. We asked how 5‐yr experimental rainfall and nutrient enhancements in a natural grassland system affected 16 ecosystem functions, pools, and stoichiometry variables considered to indicate slow vs. fast cycling. We combined these metrics into a novel index we termed “slow‐fast multifunctionality” and assessed its relationship to plant community diversity and exotic plant dominance. Nutrient and rainfall addition interacted to affect average slow‐fast multifunctionality. Nutrient addition alone pushed the system toward faster cycling, but this effect weakened with the joint addition of rainfall and nutrients. Variables associated with soil nutrient pools and cycling most strongly contributed to this antagonistic interaction. Nutrient and water addition together, respectively, had additive or synergistic effects on plant trait composition and productivity, demonstrating divergence of above‐ and belowground ecosystem responses. Our novel metric of faster cycling was strongly associated with decreased plant species richness and increased exotic species dominance. These results demonstrate the breadth of interacting community and ecosystem changes that ensue when resource limitation is relaxed.

Countries
Netherlands, Finland, Netherlands
Keywords

whole-ecosystem shif, fast transition, native diversity, exotics, Water, Biodiversity, Plants, slow transition, nutrient enrichment, Soil, climate change, whole‐ecosystem shift, SDG 13 - Climate Action, ecological multifunctionality, multiple global changes, Ecosystem

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    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    21
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
21
Top 10%
Average
Top 10%
Green
hybrid