Tree diversity enhances predation by birds but not by arthropods across climate gradients.

Autor: Vázquez-González C; Department of Ecology and Evolutionary Biology, University of California Irvine, Irvine, California, USA.; Misión Biológica de Galicia, Consejo Superior de Investigaciones Científicas (MBG-CSIC), Pontevedra, España., Castagneyrol B; BIOGECO, University of Bordeaux, INRAE, Bordeaux, France., Muiruri EW; Department of Biological Sciences, Royal Holloway University of London, Egham, Surrey, UK., Barbaro L; Dynafor, INRAE-INPT, University of Toulouse, Castanet-Tolosan, France., Abdala-Roberts L; Departamento de Ecología Tropical, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, Yucatán, Mexico., Barsoum N; Forest Research, Alice Holt Lodge, Farnham, Surrey, UK., Fründ J; Biometry and Environmental System Analysis, University of Freiburg, Freiburg, Germany.; Animal Network Ecology, Department of Biology, Universität Hamburg, Hamburg, Germany.; Nature Conservation and Landscape Ecology, University of Freiburg, Freiburg, Germany., Glynn C; Department of Crop Production Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden., Jactel H; BIOGECO, University of Bordeaux, INRAE, Bordeaux, France., McShea WJ; Conservation Ecology Center, Smithsonian's National Zoo and Conservation Biology Institute 1500 Remount Road, Front Royal, Virginia, USA., Mereu S; Institute of BioEconomy, National Research Council of Italy, Sassari, Italy., Mooney KA; Department of Ecology and Evolutionary Biology, University of California Irvine, Irvine, California, USA., Morillas L; Department of Plant Biology and Ecology, University of Sevilla, C/ Professor García González s/n, Sevilla, Spain., Nock CA; College of Natural and Applied Sciences, Department of Renewable Resources, University of Alberta, Edmonton, Alberta, Canada., Paquette A; Center for Forest Research, Université du Québec à Montréal, Montréal, Canada., Parker JD; Smithsonian Environmental Research Center, Front Royal, Maryland, USA., Parker WC; Ontario Ministry of Natural Resources and Forestry, Sault Ste. Marie, Ontario, Canada., Roales J; Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Ctra, Seville, Spain., Scherer-Lorenzen M; Faculty of Biology, Geobotany, University of Freiburg, Freiburg, Germany., Schuldt A; Forest Nature Conservation, University of Göttingen, Göttingen, Germany., Verheyen K; Forest & Nature Lab, Department of Environment, Ghent University, Melle-Gontrode, Belgium., Weih M; Department of Crop Production Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden., Yang B; Jiangxi Key Laboratory of Plant Resources and Biodiversity, Jingdezhen University, Jingdezhen, China., Koricheva J; Department of Biological Sciences, Royal Holloway University of London, Egham, Surrey, UK.
Jazyk: angličtina
Zdroj: Ecology letters [Ecol Lett] 2024 May; Vol. 27 (5), pp. e14427.
DOI: 10.1111/ele.14427
Abstrakt: Tree diversity can promote both predator abundance and diversity. However, whether this translates into increased predation and top-down control of herbivores across predator taxonomic groups and contrasting environmental conditions remains unresolved. We used a global network of tree diversity experiments (TreeDivNet) spread across three continents and three biomes to test the effects of tree species richness on predation across varying climatic conditions of temperature and precipitation. We recorded bird and arthropod predation attempts on plasticine caterpillars in monocultures and tree species mixtures. Both tree species richness and temperature increased predation by birds but not by arthropods. Furthermore, the effects of tree species richness on predation were consistent across the studied climatic gradient. Our findings provide evidence that tree diversity strengthens top-down control of insect herbivores by birds, underscoring the need to implement conservation strategies that safeguard tree diversity to sustain ecosystem services provided by natural enemies in forests.
(© 2024 The Authors. Ecology Letters published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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