| Title: | Climate change alters plant-herbivore interactions |
| Author(s): | Hamann E; Blevins C; Franks SJ; Jameel MI; Anderson JT; |
| Address: | "Department of Genetics and Odum School of Ecology, University of Georgia, Athens, GA, 30602, USA. Department of Biological Sciences, Fordham University, Bronx, NY, 10458, USA" |
| ISSN/ISBN: | 1469-8137 (Electronic) 0028-646X (Linking) |
| Abstract: | "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, CO(2) concentrations, drought stress and nutrient conditions directly and indirectly induce greater food consumption by herbivores. Additionally, elevated CO(2) delays herbivore development, but increased temperatures accelerate development. For annual plants, higher temperatures, CO(2) 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 CO(2) , 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" |
| Keywords: | Animals *Climate Change Droughts *Herbivory Insecta Plants Co2 climate change drought herbivore consumption nitrogen fertilization plant damage plant-herbivore interactions temperature; |
| Notes: | "MedlineHamann, Elena Blevins, Cameron Franks, Steven J Jameel, M Inam Anderson, Jill T eng Meta-Analysis Research Support, U.S. Gov't, Non-P.H.S. Review England 2020/10/29 New Phytol. 2021 Feb; 229(4):1894-1910. doi: 10.1111/nph.17036. Epub 2020 Nov 29" |
