%AEbeling, Anne [Institute of Ecology and Evolution University of Jena Jena Germany]%AStrauss, Alex [Department of Ecology, Evolution, and Behavior University of Minnesota St. Paul MN USA, Odum School of Ecology University of Georgia Athens GA USA]%AAdler, Peter [Department of Wildland Resources and the Ecology Center Utah State University Logan UT USA]%AArnillas, Carlos [Department of Physical and Environmental Sciences University of Toronto—Scarborough Toronto ON Canada]%ABarrio, Isabel [Faculty of Environmental and Forest Sciences Agricultural University of Iceland Reykjavík Iceland]%ABiederman, Lori [Department of Ecology, Evolution, and Organismal Biology Iowa State University Ames IA USA]%ABorer, Elizabeth [Department of Ecology, Evolution, and Behavior University of Minnesota St. Paul MN USA]%ABugalho, Miguel [Centre for Applied Ecology (CEABN‐InBIO) School of Agriculture University of Lisbon Lisbon Portugal]%ACaldeira, Maria [Forest Research Centre School of Agriculture University of Lisbon Lisbon Portugal]%ACadotte, Marc [Department of Biological Sciences University of Toronto—Scarborough Toronto ON Canada]%ADaleo, Pedro [Instituto de Investigaciones Marinas y Costeras CONICET—UNMDP Mar del Plata Argentina]%AEisenhauer, Nico [German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany, Institute of Biology Leipzig University Leipzig Germany]%AEskelinen, Anu [German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany, Department of Physiological Diversity Helmholtz Centre for Environmental Research ‐ UFZ Leipzig Germany, Department of Ecology and Genetics University of Oulu Oulu Finland]%AFay, Philip [USDA‐ARS Grassland Soil and Water Research Laboratory Temple TX USA]%AFirn, Jennifer [Centre for the Environment School of Biology and Environmental Science Queensland University of Technology (QUT) Brisbane QLD Australia]%AGraff, Pamela [Facultad de Agronomía IFEVA‐CONICET Universidad de Buenos Aires Buenos Aires Argentina]%AHagenah, Nicole [Department of Zoology and Entomology Mammal Research Institute University of Pretoria Pretoria South Africa, School of Life Sciences University of KwaZulu‐Natal Scottsville South Africa]%AHaider, Sylvia [German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany, Institute of Biology/Geobotany and Botanical Garden Martin Luther University Halle‐Wittenberg Halle Germany]%AKomatsu, Kimberly [Smithsonian Environmental Research Center Edgewater MD USA]%AMcCulley, Rebecca [Department of Plant and Soil Sciences University of Kentucky Lexington KY USA]%AMitchell, Charles [Department of Biology The University of North Carolina at Chapel Hill Chapel Hill NC USA]%AMoore, Joslin [School of Biological Sciences Monash University Clayton Vic Australia]%APascual, Jesus [Instituto de Investigaciones Marinas y Costeras CONICET—UNMDP Mar del Plata Argentina]%APeri, Pablo [Instituto Nacional de Tecnología Agropecuaria Río Gallegos, Santa Cruz Argentina, Universidad Nacional de la Patagonia Autral (UNPA‐CONICET) Santa Cruz Argentina]%APower, Sally [Hawkesbury Institute for the Environment Western Sydney University Penrith Australia]%AProber, Suzanne [CSIRO Land and Water Wembley Australia]%ARisch, Anita [Community Ecology Swiss Federal Institute for Forest, Snow and Landscape Research WSL Birmensdorf Switzerland]%ARoscher, Christiane [German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany, Department of Physiological Diversity Helmholtz Centre for Environmental Research ‐ UFZ Leipzig Germany]%ASankaran, Mahesh [National Centre for Biological Sciences TIFR Bengaluru India, School of Biology University of Leeds Leeds UK]%ASeabloom, Eric [Department of Ecology, Evolution, and Behavior University of Minnesota St. Paul MN USA]%ASchielzeth, Holger [Institute of Ecology and Evolution University of Jena Jena Germany]%ASchütz, Martin [Community Ecology Swiss Federal Institute for Forest, Snow and Landscape Research WSL Birmensdorf Switzerland]%ASpeziale, Karina [Laboratorio Ecotono Iniboma (CONICET‐UNCO) Bariloche Argentina]%ATedder, Michelle [School of Life Sciences University of KwaZulu‐Natal Scottsville South Africa]%AVirtanen, Risto [Department of Ecology and Genetics University of Oulu Oulu Finland]%ABlumenthal, Dana [USDA‐ARS Rangeland Resources &, Systems Research Unit Fort Collins CO USA]%BJournal Name: Journal of Ecology; Journal Volume: 110; Journal Issue: 2; Related Information: CHORUS Timestamp: 2023-08-27 09:54:23 %D2021%IWiley-Blackwell %JJournal Name: Journal of Ecology; Journal Volume: 110; Journal Issue: 2; Related Information: CHORUS Timestamp: 2023-08-27 09:54:23 %K %MOSTI ID: 10362579 %PMedium: X %TNutrient enrichment increases invertebrate herbivory and pathogen damage in grasslands %XAbstract

Plant damage by invertebrate herbivores and pathogens influences the dynamics of grassland ecosystems, but anthropogenic changes in nitrogen and phosphorus availability can modify these relationships.

Using a globally distributed experiment, we describe leaf damage on 153 plant taxa from 27 grasslands worldwide, under ambient conditions and with experimentally elevated nitrogen and phosphorus.

Invertebrate damage significantly increased with nitrogen addition, especially in grasses and non‐leguminous forbs. Pathogen damage increased with nitrogen in grasses and legumes but not forbs. Effects of phosphorus were generally weaker. Damage was higher in grasslands with more precipitation, but climatic conditions did not change effects of nutrients on leaf damage. On average, invertebrate damage was relatively higher on legumes and pathogen damage was relatively higher on grasses. Community‐weighted mean damage reflected these functional group patterns, with no effects of N on community‐weighted pathogen damage (due to opposing responses of grasses and forbs) but stronger effects of N on community‐weighted invertebrate damage (due to consistent responses of grasses and forbs).

Synthesis. As human‐induced inputs of nitrogen and phosphorus continue to increase, understanding their impacts on invertebrate and pathogen damage becomes increasingly important. Our results demonstrate that eutrophication frequently increases plant damage and that damage increases with precipitation across a wide array of grasslands. Invertebrate and pathogen damage in grasslands is likely to increase in the future, with potential consequences for plant, invertebrate and pathogen communities, as well as the transfer of energy and nutrients across trophic levels.

%0Journal Article