Journal
NATURE PLANTS
Volume 6, Issue 5, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41477-020-0654-y
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Funding
- Agriculture Research System of Shanghai, China [201908]
- National Natural Science Foundation of China [31401751, 11971117]
- Shanghai Academy of Agricultural Sciences Program for Excellent Research Team [2018[B-01]]
- European Union's Horizon 2020 research and innovation programme [727284]
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Numerous studies have demonstrated that plant species diversity enhances ecosystem functioning in terrestrial ecosystems, including diversity effects on insects (herbivores, predators and parasitoids) and plants. However, the effects of increased plant diversity across trophic levels in different ecosystems and biomes have not yet been explored on a global scale. Through a global meta-analysis of 2,914 observations from 351 studies, we found that increased plant species richness reduced herbivore abundance and damage but increased predator and parasitoid abundance, predation, parasitism and overall plant performance. Moreover, increased predator/parasitoid performance was correlated with reduced herbivore abundance and enhanced plant performance. We conclude that increasing plant species diversity promotes beneficial trophic interactions between insects and plants, ultimately contributing to increased ecosystem services. Global meta-analysis of plant species diversity effects on trophic levels of ecosystem functioning, finding beneficial impacts from increased diversity.
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