Climate change alters plant–herbivore interactions

Plant–herbivore interactions have evolved in response to coevolutionary dynamics, along with selection driven by abiotic conditions. We examine how abiotic factors influence trait expression in both plants and herbivores to evaluate how climate change will alter this long-standing interaction. The p...

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Bibliographic Details
Published in:The New phytologist Vol. 229; no. 4; pp. 1894 - 1910
Main Authors: Hamann, Elena, Blevins, Cameron, Franks, Steven J., Jameel, M. Inam, Anderson, Jill T.
Format: Journal Article
Language:English
Published: England Wiley 01.02.2021
Wiley Subscription Services, Inc
Subjects:
Abiotic factors
Adaptation
Animals
annuals
Carbon dioxide
Climate Change
Climate prediction
climatic factors
CO2
Coevolution
Distribution patterns
Drought
Droughts
dynamics
Evaluation
Food consumption
Global warming
herbivore consumption
Herbivores
Herbivory
High temperature
humans
Insecta
Insects
lead
meta-analysis
nitrogen
nitrogen fertilization
Nutrient concentrations
perennials
phenology
Phylogeny
plant damage
Plants
plant–herbivore interactions
prediction
Tansley review
temperature
water stress
plant-herbivore interactions
drought
CO2
temperature
nitrogen fertilization
plant damage
climate change
herbivore consumption
ISSN:0028-646X, 1469-8137, 1469-8137
Online Access:Get full text
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Summary:Plant–herbivore interactions have evolved in response to coevolutionary dynamics, along with selection driven by abiotic conditions. We examine how abiotic factors influence trait expression in both plants and herbivores to evaluate how climate change will alter this long-standing interaction. The paleontological record documents increased herbivory during periods of global warming in the deep past. In phylogenetically corrected meta-analyses, we find that elevated temperatures, CO₂ concentrations, drought stress and nutrient conditions directly and indirectly induce greater food consumption by herbivores. Additionally, elevated CO₂ delays herbivore development, but increased temperatures accelerate development. For annual plants, higher temperatures, CO₂ and drought stress increase foliar herbivory. Our meta-analysis also suggests that greater temperatures and drought may heighten florivory in perennials. Human actions are causing concurrent shifts in CO₂, temperature, precipitation regimes and nitrogen deposition, yet few studies evaluate interactions among these changing conditions. We call for additional multifactorial studies that simultaneously manipulate multiple climatic factors, which will enable us to generate more robust predictions of how climate change could disrupt plant–herbivore interactions. Finally, we consider how shifts in insect and plant phenology and distribution patterns could lead to ecological mismatches, and how these changes may drive future adaptation and coevolution between interacting species.
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ISSN:0028-646X
1469-8137
1469-8137
DOI:10.1111/nph.17036