Isotopic evidence for oligotrophication of terrestrial ecosystems

• Autores: Craine, Joseph M.; Elmore, Andrew J.; Wang, Lixin; 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, Michael 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.; Van der Colff, Dewidine; Werner, Christiane; Xu, Xingliang; Yang, Yang; Yu, Guirui; Zmudczyńska Skarbek, Katarzyna
• Año de publicación: 2018
• Idioma: inglés
• Tipo de recurso: artículo
• Materia: Isotopes; Nitrogen; Terrestrial carbon uptake; Nutritional stress
• Institución: Consejo Nacional de Investigaciones Científicas y Técnicas

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 (δ 15 N) from more than 43,000 samples acquired over 37 years, here we show that foliar N concentration declined by 9% and foliar δ 15 N declined by 0.6–1.6‰. Examining patterns across different climate spaces, foliar δ 15 N 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 δ 15 N 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.
Fil: Craine, Joseph M.. Jonah Ventures; Estados Unidos
Fil: Elmore, Andrew J.. University of Maryland; Estados Unidos
Fil: Wang, Lixin. Indiana University; Estados Unidos. Purdue University; 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. University of Ghent; Bélgica
Fil: Boeckx, Pascal. University of Ghent; Bélgica
Fil: Crowley, Brooke E.. University of Cincinnati; Estados Unidos
Fil: Dawes, Melissa A.. Swiss Federal Institute for Forest, Snow and Landscape Research; Suiza
Fil: Delzon, Sylvain. Universite de Bordeaux; Francia. Institut National de la Recherche Agronomique; Francia
Fil: Fajardo, Alex. Centro de Investigación en Ecosistemas de la Patagonia; Chile
Fil: Fang, Yunting. Chinese Academy of Sciences; República de China
Fil: Fujiyoshi, Lei. Research Institute for Humanity and Nature; Japón
Fil: Gray, Alan. North American Electric Reliability Corporation. Centre for Ecology and Hydrology; Estados Unidos
Fil: Guerrieri, Rossella. Consejo Superior de Investigaciones Científicas. Centre de Recerca Ecológica I Aplicacions Forestals; España
Fil: Gundale, Michael J.. Swedish University of Agricultural Sciences; 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; Bélgica
Fil: Kearsley, Elizabeth. University of Ghent; Bélgica
Fil: Kenzo, Tanaka. Forestry and Forest Products Research Institute. Department of Plant Ecology; Japón
Fil: Makarov, Mikhail. Moscow M.V. Lomonosov State University; Rusia
Fil: Marañón Jiménez, Sara. Universidad de Granada; España. Consejo Superior de Investigaciones Científicas. Centre de Recerca Ecológica I Aplicacions Forestals; España
Fil: McGlynn, Terrence P.. University of California; 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; Estados Unidos
Fil: Nelson, David M.. University of Maryland; Estados Unidos
Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad Nacional de la Patagonia Austral; Argentina. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Roggy, Jean Christophe. Institut National de la Recherche Agronomique; Francia. Ecologie des Forêts de Guyane; Francia
Fil: Sanders Demott, Rebecca. Boston University; Estados Unidos
Fil: Song, Minghua. Chinese Academy of Sciences; República de China
Fil: Szpak, Paul. Trent University. Department of Anthropology; Canadá
Fil: Templer, Pamela H.. Boston University; Estados Unidos
Fil: Van der Colff, Dewidine. South African National Biodiversity Institute; Sudáfrica
Fil: Werner, Christiane. Albert Ludwigs University of Freiburg; Alemania
Fil: Xu, Xingliang. Chinese Academy of Sciences; República de China
Fil: Yang, Yang. Chinese Academy of Sciences; República de China
Fil: Yu, Guirui. Chinese Academy of Sciences; República de China. University of Chinese Academy of Sciences. College of Resources and Environment; República de China
Fil: Zmudczyńska Skarbek, Katarzyna. University of Gdańsk; Polonia