Isotopic evidence for oligotrophication of terrestrial ecosystems

• Autores: Craine, Joseph M.; Elmore, Andrew J.; Wang, Lixing; Aranibar, Julieta Nelida; Bauters, Marijn; Boeckx, Pascal; Crowley, Brooke E.; Dawes, Melissa A.; Delzon, Sylvain; Fajardo, Alex; Fang, Yunting; Fujiyoshi, Lei; Gray, Alan; Guerrieri, Rossella; Gundale, Michel J.; Hawke, David J.; Hietz, Peter; Jonard, Mathieu; Kearsley, Elizabeth; Kenzo, Tanaka; Makarov, Mikhail; Marañón Jiménez, Sara; McGlynn, Terrence P.; McNeil, Brenden E.; Mosher, Stella G.; Nelson, David M.; Peri, Pablo Luis; Roggy, Jean Christophe; Sanders-DeMott, Rebecca; Song, Minghua; Szpak, Paul; Templer, Pamela H.; Colff, Dewidine van der; Werner, Christiane; Xu, Xingliang; Yang, Yang; Yu, Guirui; Zmudczyńska-Skarbek, Katarzyna
• Año de publicación: 2018
• Idioma: inglés
• Tipo de recurso: artículo
• Fuente: Nature Ecology & Evolution 2 : 1735–1744 (2018)
• Materia: Ecosistema; Isótopos; Niveles Tróficos; Dióxido de Carbono; Ecosystems; Isotopes; Trophic Levels; Carbon Dioxide
• Institución: Instituto Nacional de Tecnología Agropecuaria

Human societies depend on an Earth system that operates within a constrained range of nutrient availability, yet the recent trajectory of terrestrial nitrogen (N) availability is uncertain. Examining patterns of foliar N concentrations and isotope ratios (δ15N) from more than 43,000 samples acquired over 37 years, here we show that foliar N concentration declined by 9% and foliar δ15N declined by 0.6–1.6‰. Examining patterns across different climate spaces, foliar δ15N declined across the entire range of mean annual temperature and mean annual precipitation tested. These results suggest declines in N supply relative to plant demand at the global scale. In all, there are now multiple lines of evidence of declining N availability in many unfertilized terrestrial ecosystems, including declines in δ15N of tree rings and leaves from herbarium samples over the past 75–150 years. These patterns are consistent with the proposed consequences of elevated atmospheric carbon dioxide and longer growing seasons. These declines will limit future terrestrial carbon uptake and increase nutritional stress for herbivores.
EEA Santa Cruz
Fil: Craine, Joseph M. Jonah Ventures; Estados Unidos
Fil: Elmore, Andrew J. University of Maryland Center for Environmental Science. Appalachian Laboratory; Estados Unidos
Fil: Wang, Lixing. Indiana University-Purdue University Department of Earth Sciences; Estados Unidos
Fil: Aranibar, Julieta Nelida. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Bauters, Marijn. Ghent University. MB Isotope Bioscience Laboratory – ISOFYS; Bélgica
Fil: Boeckx, Pascal. Ghent University. MB Isotope Bioscience Laboratory – ISOFYS; Bélgica
Fil: Crowley, Brooke E. University of Cincinnati. Department of Geology and Department of Anthropology; Estados Unidos
Fil: Dawes, Melissa A. Swiss Federal Institute for Forest, Snow and Landscape Research – WSL Forest soils and Biogeochemistry; Suiza
Fil: Delzon, Sylvain. Institut National de la Recherche Agronomique. Université Bordeaux. Biodiversité Gènes et Communautés; Francia.
Fil: Fajardo, Alex. Universidad Austral de Chile. Centro de Investigación en Ecosistemas de la Patagonia; Chile
Fil: Fang, Yunting. Chinese Academy of Sciences. Institute of Applied Ecology. CAS Key Laboratory of Forest Ecology and Management; China
Fil: Fujiyoshi, Lei. Research Institute for Humanity and Nature; Japón
Fil: Gray, Alan. NERC Centre for Ecology and Hydrology; Reino Unido
Fil: Guerrieri, Rossella. Centre for Ecological Research and Forestry Applications; España
Fil: Gundale, Michael J. Swedish University of Agricultural Sciences. Department of Forest Ecology and Management; Suecia
Fil: Hawke, David J. Ara Institute of Canterbury. Department of Science and Primary Industries; Nueva Zelanda
Fil: Hietz, Peter. University of Natural Resources and Life Sciences. Institute of Botany; Austria
Fil: Jonard, Mathieu. Université Catholique de Louvain. Earth and Life Institute; Bélgica
Fil: Kearsley, Elizabeth. Ghent University. Department of Environment. Computational and Applied Vegetation Ecology lab; Bélgica
Fil: Kenzo, Tanaka. Forestry and Forest Products Research Institute. Department of Plant Ecology; Japón
Fil: Makarov, Mikhail. Moscow M.V. Lomonosov State University. Soil Science Department; Rusia
Fil: Marañón Jiménez, Sara. University of Granada. Faculty of Sciences. Department of Ecology; España. CREAF; España
Fil: McGlynn, Terrence P. California State University Dominguez Hills. Department of Biology; Estados Unidos. Natural History Museum of Los Angeles County. Department of Entomology; Estados Unidos
Fil: McNeil, Brenden E. West Virginia University. Department of Geology and Geography; Estados Unidos
Fil: Mosher, Stella G. University of Cincinnati. Department of Geology and Department of Anthropology; Estados Unidos
Fil: Nelson, David M. University of Maryland Center for Environmental Science. Appalachian Laboratory; Estados Unidos
Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Roggy, Jean Christophe. Institut National de la Recherche Agronomique. UMR Ecologie des Forêts de Guyane; Guyane Française (Francia)
Fil: Sanders-DeMott, Rebecca. Boston University. Department of Biology; Estados Unidos. University of New Hampshire. Department of Natural Resources and the Environment; Estados Unidos
Fil: Song, Minghua. Chinese Academy of Sciences. Institute of Geographic Sciences and Natural Resources Research. Key Laboratory of Ecosystem Network Observation and Modeling; China
Fil: Szpak, Paul. Trent University. Department of Anthropology ; Canadá
Fil: Templer, Pamela H. Boston University. Department of Biology; Estados Unidos.
Fil: Colff, Dewidine van der. South African National Biodiversity Institute; Sudáfrica
Fil: Werner, Christiane. University of Freiburg. Ecosystem Physiology; Alemania
Fil: Xu, Xingliang. University of New Hampshire. Department of Natural Resources and the Environment; Estados Unidos
Fil: Yang, Yang. Chinese Academy of Sciences. Kunming Institute of Botany. Key Laboratory for Plant Diversity and Biogeography of East Asia; China
Fil: Yu, Guirui. Chinese Academy of Sciences. Institute of Geographic Sciences and Natural Resources Research. Key Laboratory of Ecosystem Network Observation and Modeling; China. University of Chinese Academy of Sciences. College of Resources and Environment; China
Fil: Zmudczyńska-Skarbek, Katarzyna. University of Gdańsk. Faculty of Biology. Department of Vertebrate Ecology and Zoology; Polonia