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Thomas HJD, Bjorkman AD, Myers-Smith IH, Elmendorf SC, Kattge J, Diaz S, Vellend M, Blok D, Cornelissen JHC, Forbes BC, Henry GHR, Hollister RD, Normand S, Prevéy JS, Rixen C, Schaepman-Strub G, Wilmking M, Wipf S, Cornwell WK, Beck PSA, Georges D, Goetz SJ, Guay KC, Rüger N, Soudzilovskaia NA, Spasojevic MJ, Alatalo JM, Alexander HD, Anadon-Rosell A, Angers-Blondin S, Te Beest M, Berner LT, Björk RG, Buchwal A, Buras A, Carbognani M, Christie KS, Collier LS, Cooper EJ, Elberling B, Eskelinen A, Frei ER, Grau O, Grogan P, Hallinger M, Heijmans MMPD, Hermanutz L, Hudson JMG, Johnstone JF, Hülber K, Iturrate-Garcia M, Iversen CM, Jaroszynska F, Kaarlejarvi E, Kulonen A, Lamarque LJ, Lantz TC, Lévesque E, Little CJ, Michelsen A, Milbau A, Nabe-Nielsen J, Nielsen SS, Ninot JM, Oberbauer SF, Olofsson J, Onipchenko VG, Petraglia A, Rumpf SB, Shetti R, Speed JDM, Suding KN, Tape KD, Tomaselli M, Trant AJ, Treier UA, Tremblay M, Venn SE, Vowles T, Weijers S, Wookey PA, Zamin TJ, Bahn M, Blonder B, van Bodegom PM, Bond-Lamberty B, Campetella G, Cerabolini BEL, Chapin FS, Craine JM, Dainese M, Green WA, Jansen S, Kleyer M, Manning P, Niinemets Ü, Onoda Y, Ozinga WA, Peñuelas J, Poschlod P, Reich PB, Sandel B, Schamp BS, Sheremetiev SN, de Vries FT. Global plant trait relationships extend to the climatic extremes of the tundra biome. Nat Commun 2020; 11:1351. [PMID: 32165619 PMCID: PMC7067758 DOI: 10.1038/s41467-020-15014-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 02/11/2020] [Indexed: 11/09/2022] Open
Abstract
The majority of variation in six traits critical to the growth, survival and reproduction of plant species is thought to be organised along just two dimensions, corresponding to strategies of plant size and resource acquisition. However, it is unknown whether global plant trait relationships extend to climatic extremes, and if these interspecific relationships are confounded by trait variation within species. We test whether trait relationships extend to the cold extremes of life on Earth using the largest database of tundra plant traits yet compiled. We show that tundra plants demonstrate remarkably similar resource economic traits, but not size traits, compared to global distributions, and exhibit the same two dimensions of trait variation. Three quarters of trait variation occurs among species, mirroring global estimates of interspecific trait variation. Plant trait relationships are thus generalizable to the edge of global trait-space, informing prediction of plant community change in a warming world.
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Affiliation(s)
- H J D Thomas
- School of Geosciences, University of Edinburgh, Edinburgh, EH9 3FF, Scotland, UK.
| | - A D Bjorkman
- School of Geosciences, University of Edinburgh, Edinburgh, EH9 3FF, Scotland, UK
- Department of Biological and Environmental Sciences, University of Gothenburg, Medicinaregatan 18, 40530, Gothenburg, Sweden
- Gothenburg Global Biodiversity Centre, Carl Skottsbergs gata 22B, 41319, Gothenburg, Sweden
| | - I H Myers-Smith
- School of Geosciences, University of Edinburgh, Edinburgh, EH9 3FF, Scotland, UK
| | - S C Elmendorf
- Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO, 80309-0450, USA
| | - J Kattge
- Max Planck Institute for Biogeochemistry, 07701, Jena, Germany
- German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Deutscher Platz 5e, 04103, Leipzig, Germany
| | - S Diaz
- Instituto Multidisciplinario de Biología Vegetal (IMBIV), CONICET, Av.Velez Sarsfield 299, Cordoba, Argentina
- FCEFyN, Universidad Nacional de Córdoba, Av. Vélez Sarsfield 299, X5000JJC, Córdoba, Argentina
| | - M Vellend
- Département de Biologie, Université de Sherbrooke, 2500, boul. de l'Université Sherbrooke, Québec, J1K 2R1, Canada
| | - D Blok
- Dutch Research Council, (NWO), Postbus 93460, 2509 AL, Den Haag, The Netherlands
| | - J H C Cornelissen
- Systems Ecology, Department of Ecological Science, Vrije Universiteit, De Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands
| | - B C Forbes
- Arctic Centre, University of Lapland, 96101, Rovaniemi, Finland
| | - G H R Henry
- Department of Geography, University of British Columbia, 1984 West Mall, Vancouver, V6T 1Z2, Canada
| | - R D Hollister
- Biology Department, Grand Valley State University, 1 Campus Drive, 3300a Kindschi Hall of Science, Allendale, Michigan, USA
| | - S Normand
- Department of Biology, Aarhus University, Ny Munkegade 114-116, DK-8000, Aarhus C, Denmark
| | - J S Prevéy
- U.S. Geological Survey, Fort Collins Science Center, Fort Collins, CO, 80526, USA
- WSL Institute for Snow and Avalanche Research SLF, Flüelastrasse 11, 7260, Davos Dorf, Switzerland
| | - C Rixen
- WSL Institute for Snow and Avalanche Research SLF, Flüelastrasse 11, 7260, Davos Dorf, Switzerland
| | - G Schaepman-Strub
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - M Wilmking
- Institute of Botany and Landscape Ecology, Greifswald University, Soldmannstraße 15, 17487, Greifswald, Germany
| | - S Wipf
- WSL Institute for Snow and Avalanche Research SLF, Flüelastrasse 11, 7260, Davos Dorf, Switzerland
- Swiss National Park, Runatsch 124, Chastè Planta-Wildenberg, 7530, Zernez, Switzerland
| | - W K Cornwell
- Ecology and Evolution Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, NSW, 2052, Australia
| | - P S A Beck
- European Commission, Joint Research Centre, Via Enrico Fermi, 2749, Ispra, 21027, Italy
| | - D Georges
- School of Geosciences, University of Edinburgh, Edinburgh, EH9 3FF, Scotland, UK
- International Agency for Research in Cancer, 150 Cours Albert Thomas, 69372, Lyon, France
| | - S J Goetz
- School of Informatics, Computing and Cyber Systems, Northern Arizona University, Flagstaff, 1295S Knoles Dr, AZ, 86011, USA
| | - K C Guay
- Bigelow Laboratory for Ocean Sciences, 60 Bigelow Dr, East Boothbay, Maine, 04544, USA
| | - N Rüger
- German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Deutscher Platz 5e, 04103, Leipzig, Germany
- Smithsonian Tropical Research Institute, Luis Clement Avenue, Bldg. 401 Tupper, Balboa Ancón, Panama
| | - N A Soudzilovskaia
- Environmental Biology Department, Institute of Environmental Sciences, Leiden University, 2300 RA, Leiden, The Netherlands
| | - M J Spasojevic
- Department of Evolution, Ecology, and Organismal Biology, University of California Riverside, Life Sciences Building, Eucalyptus Dr #2710, Riverside, CA, 92521, USA
| | - J M Alatalo
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar
- Environmental Science Center, Qatar University, Doha, Qatar
| | - H D Alexander
- Department of Forestry, Forest and Wildlife Research Center, Mississippi State University, Mississippi, MS, 39762, USA
| | - A Anadon-Rosell
- Institute of Botany and Landscape Ecology, Greifswald University, Soldmannstraße 15, 17487, Greifswald, Germany
- Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Diagonal, 643, 08028, Barcelona, Spain
- Biodiversity Research Institute, University of Barcelona, Av. Diagonal, 645, 08028, Barcelona, Spain
| | - S Angers-Blondin
- School of Geosciences, University of Edinburgh, Edinburgh, EH9 3FF, Scotland, UK
| | - M Te Beest
- Environmental Sciences, Copernicus Institute of Sustainable Development, Utrecht University, Heidelberglaan 8, 3584 CS, Utrecht, The Netherlands
- Department of Ecology and Environmental Science Umeå University, SE-901 87, Umeå, Sweden
| | - L T Berner
- School of Informatics, Computing and Cyber Systems, Northern Arizona University, Flagstaff, 1295S Knoles Dr, AZ, 86011, USA
| | - R G Björk
- Department of Earth Sciences, University of Gothenburg, 405 30, Gothenburg, Sweden
- Gothenburg Global Biodiversity Centre, SE-405 30, Gothenburg, Sweden
| | - A Buchwal
- Adam Mickiewicz University, Institute of Geoecology and Geoinformation, B. Krygowskiego 10, 61-680, Poznan, Poland
- University of Alaska Anchorage, 3211 Providence Dr, Anchorage, AK, 99508, USA
| | - A Buras
- Land Surface-Atmosphere Interactions, Technische Universität München, Hans-Carl-von-Carlowitz Platz 2, 85354, Freising, Germany
| | - M Carbognani
- Deptartment of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze, 11/a, 43124, Parma, Italy
| | - K S Christie
- Alaska Department of Fish and Game, 333 Raspberry Rd, Anchorage, AK, 99518, USA
| | - L S Collier
- Department of Biology, Memorial University, St. John's, Newfoundland and Labrador, A1C 5S7, Canada
| | - E J Cooper
- Deptartment of Arctic and Marine Biology, Faculty of Bioscences Fisheries and Economics, UiT-The Arctic University of Norway, Tromsø, Norway
| | - B Elberling
- Center for Permafrost (CENPERM), Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, DK-1350, Copenhagen K, Denmark
| | - A Eskelinen
- German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Deutscher Platz 5e, 04103, Leipzig, Germany
- Department of Physiological Diversity, Helmholtz Centre for Environmental Research-UFZ, Deutscher Platz 5e, 04103, Leipzig, Germany
- Department of Ecology and Genetics, University of Oulu, Pentti Kaiteran katu 1, Linnanmaa, Oulu, Finland
| | - E R Frei
- Department of Geography, University of British Columbia, 1984 West Mall, Vancouver, V6T 1Z2, Canada
- Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903, Birmensdorf, Switzerland
| | - O Grau
- CSIC, Global Ecology Unit CREAF-CSIC-UAB, 08193 Cerdanyola del Vallès Bellaterra, Catalonia, Spain
- CREAF, 08193 Cerdanyola del Vallès, Catalonia, Spain
- Cirad, UMR EcoFoG (AgroParisTech, CNRS, Inra, Univ Antilles, Univ Guyane), Campus Agronomique, 97310, Kourou, French Guiana
| | - P Grogan
- Department of Biology, Queen's University, Biosciences Complex, 116 Barrie St., Kingston, ON, K7L 3N6, Canada
| | - M Hallinger
- Biology Department, Swedish Agricultural University (SLU), SE-750 07, Uppsala, Sweden
| | - M M P D Heijmans
- Plant Ecology and Nature Conservation Group, Wageningen University and Research, 6700 AA, Wageningen, The Netherlands
| | - L Hermanutz
- Department of Biology, Memorial University, St. John's, Newfoundland and Labrador, A1C 5S7, Canada
| | - J M G Hudson
- British Columbia Public Service, Vancouver, Canada
| | - J F Johnstone
- Department of Biology, University of Saskatchewan, Saskatoon, SK, S7N 5E2, Canada
| | - K Hülber
- Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, 1030, Vienna, Austria
| | - M Iturrate-Garcia
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - C M Iversen
- Climate Change Science Institute and Environmental Sciences Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN, 37831-6134, USA
| | - F Jaroszynska
- WSL Institute for Snow and Avalanche Research SLF, Flüelastrasse 11, 7260, Davos Dorf, Switzerland
- Department of Biological Sciences and Bjerknes Centre for Climate Research, University of Bergen, N-5020, Bergen, Norway
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, AB24 3FX, Scotland, UK
| | - E Kaarlejarvi
- Biodiversity Research Institute, University of Barcelona, Av. Diagonal, 645, 08028, Barcelona, Spain
- Department of Biology, Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050, Elsene, Brussles, Belgium
- Organismal and Evolutionary Biology Research Programme, University of Helsinki, PO Box, 65, FI-00014, Helsinki, Finland
| | - A Kulonen
- WSL Institute for Snow and Avalanche Research SLF, Flüelastrasse 11, 7260, Davos Dorf, Switzerland
| | - L J Lamarque
- Département des Sciences de l'environnement et Centre d'études nordiques, Université du Québec à Trois-Rivières, 3351, boul. des Forges, Québec, Canada
| | - T C Lantz
- School of Environmental Studies, University of Victoria, David Turpin Building, B243, Victoria, BC, Canada
| | - E Lévesque
- Département des Sciences de l'environnement et Centre d'études nordiques, Université du Québec à Trois-Rivières, 3351, boul. des Forges, Québec, Canada
| | - C J Little
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
- Department of Aquatic Ecology, Eawag, the Swiss Federal Institute for Aquatic Science and Technology, Überlandstrasse 133, CH-8600, Duebendorf, Switzerland
| | - A Michelsen
- Center for Permafrost (CENPERM), Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, DK-1350, Copenhagen K, Denmark
- Department of Biology, University of Copenhagen, Terrestrial Ecology Section, Universitetsparken 15, DK-2100, Copenhagen Ø, Denmark
| | - A Milbau
- Research Institute for Nature and Forest (INBO), Havenlaan 88 bus 73, 1000, Brussels, Belgium
| | - J Nabe-Nielsen
- Department of Bioscience, Aarhus University, Frederiksborgvej 399, 4000, Roskilde, Denmark
| | - S S Nielsen
- Department of Biology, Aarhus University, Ny Munkegade 114-116, DK-8000, Aarhus C, Denmark
| | - J M Ninot
- Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Diagonal, 643, 08028, Barcelona, Spain
- Biodiversity Research Institute, University of Barcelona, Av. Diagonal, 645, 08028, Barcelona, Spain
| | - S F Oberbauer
- Department of Biological Sciences, Florida International University, 11200S.W. 8th Street, Miami, FL, 33199, USA
| | - J Olofsson
- Department of Ecology and Environmental Science Umeå University, SE-901 87, Umeå, Sweden
| | - V G Onipchenko
- Department of Ecology and Plant Geography, Moscow State Lomonosov University, 119234, Moscow, 1-12 Leninskie Gory, Russia
| | - A Petraglia
- Deptartment of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze, 11/a, 43124, Parma, Italy
| | - S B Rumpf
- Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, 1030, Vienna, Austria
- Department of Ecology and Evolution, University of Lausanne, Bâtiment Biophore, Quartier UNIL-Sorge, 1015, Lausanne, Switzerland
| | - R Shetti
- Institute of Botany and Landscape Ecology, Greifswald University, Soldmannstraße 15, 17487, Greifswald, Germany
| | - J D M Speed
- Department of Natural History, NTNU University Museum, Norwegian University of Science and Technology, NO-7491, Trondheim, Norway
| | - K N Suding
- Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO, 80309-0450, USA
| | - K D Tape
- Institute of Northern Engineering, University of Alaska, Engineering Learning and Innovation Facility (ELIF), Suite 240, 1764 Tanana Loop, Fairbanks, AK, 99775-5910, USA
| | - M Tomaselli
- Deptartment of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze, 11/a, 43124, Parma, Italy
| | - A J Trant
- School of Environment, Resources and Sustainability, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
| | - U A Treier
- Department of Biology, Aarhus University, Ny Munkegade 114-116, DK-8000, Aarhus C, Denmark
| | - M Tremblay
- Département des Sciences de l'environnement et Centre d'études nordiques, Université du Québec à Trois-Rivières, 3351, boul. des Forges, Québec, Canada
| | - S E Venn
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, 75 Pigdons Rd, Waurn Ponds Victoria, 3216, Australia
| | - T Vowles
- Department of Earth Sciences, University of Gothenburg, 405 30, Gothenburg, Sweden
| | - S Weijers
- Department of Geography, University of Bonn, Meckenheimer Allee 166, D-53115, Bonn, Germany
| | - P A Wookey
- Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling, FK9 4LA, Scotland, UK
| | - T J Zamin
- Department of Biology, Queen's University, Biosciences Complex, 116 Barrie St., Kingston, ON, K7L 3N6, Canada
| | - M Bahn
- Department of Ecology, University of Innsbruck, Innrain 52, 6020, Innsbruck, Austria
| | - B Blonder
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, 3 South Parks Road, Oxford, OX1 3QY, UK
- Rocky Mountain Biological Laboratory, 8000 Co Rd 317, Crested Butte, CO, 81224, USA
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, 94706, USA
| | - P M van Bodegom
- Environmental Biology Department, Institute of Environmental Sciences, Leiden University, 2300 RA, Leiden, The Netherlands
| | - B Bond-Lamberty
- Pacific Northwest National Laboratory, Joint Global Change Research Institute, 5825 University Research Ct, College Park, MD, 20740, USA
| | - G Campetella
- School of Biosciences and Veterinary Medicine-Plant Diversity and Ecosystems Management Unit, Univeristy of Camerino, Via Gentile III Da Varano, 62032, Camerino, Italy
| | - B E L Cerabolini
- DBSV-University of Insubria, Via Dunant, 3, 21100, Varese, Italy
| | - F S Chapin
- Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK, 99775, USA
| | - J M Craine
- Jonah Ventures, 1600 Range Street Suite 201, Boulder, CO, 80301, USA
| | - M Dainese
- Department of Animal Ecology and Tropical Biology, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
- Institute for Alpine Environment, EURAC Research, Viale Druso, 1, 39100, Bolzano, Italy
| | - W A Green
- Department of Organismic and Evolutionary Biology, Harvard University, 52 Oxford Street, Cambridge, MA, 02138, USA
| | - S Jansen
- Institute of Systematic Botany and Ecology, Ulm University, Albert-Einstein-Allee 11, D-89081, Ulm, Germany
| | - M Kleyer
- Institute of Biology and Environmental Sciences, University of Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
| | - P Manning
- Senckenberg Biodiversity and Climate Research Centre, 60325, Frankfurt, Germany
| | - Ü Niinemets
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Fr.R.Kreutzwaldi 1, 51006, Tartu, Estonia
| | - Y Onoda
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - W A Ozinga
- Vegetation, Forest and Landscape Ecology, Wageningen University and Research, P.O. Box 47, NL-6700 AA, Wageningen, The Netherlands
| | - J Peñuelas
- CSIC, Global Ecology Unit CREAF-CSIC-UAB, 08193 Cerdanyola del Vallès Bellaterra, Catalonia, Spain
- CREAF, 08193 Cerdanyola del Vallès, Catalonia, Spain
| | - P Poschlod
- Ecology and Conservation Biology, Institute of Plant Sciences, University of Regensburg, Regensburg, Germany
| | - P B Reich
- Department of Forest Resources, University of Minnesota, 115 Green Hall, 1530 Cleveland Ave. N., St. Paul, MN, 55108, USA
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, 2751, Australia
| | - B Sandel
- Department of Biology, Santa Clara University, 500 El Camino Real, Santa Clara, CA, 95053, USA
| | - B S Schamp
- Department of Biology, Algoma University, 1520 Queen Street East, Sault Ste., Marie, ON, P6A 2G4, Canada
| | - S N Sheremetiev
- Komarov Botanical Institute, Professor Popova Street, 2, St Petersburg, Russia
| | - F T de Vries
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Postbus 94240, 1090 GE, Amsterdam, Netherlands
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Pierce S, Negreiros D, Cerabolini BEL, Kattge J, Díaz S, Kleyer M, Shipley B, Wright SJ, Soudzilovskaia NA, Onipchenko VG, van Bodegom PM, Frenette‐Dussault C, Weiher E, Pinho BX, Cornelissen JHC, Grime JP, Thompson K, Hunt R, Wilson PJ, Buffa G, Nyakunga OC, Reich PB, Caccianiga M, Mangili F, Ceriani RM, Luzzaro A, Brusa G, Siefert A, Barbosa NPU, Chapin FS, Cornwell WK, Fang J, Fernandes GW, Garnier E, Le Stradic S, Peñuelas J, Melo FPL, Slaviero A, Tabarelli M, Tampucci D. A global method for calculating plant
CSR
ecological strategies applied across biomes world‐wide. Funct Ecol 2016. [DOI: 10.1111/1365-2435.12722] [Citation(s) in RCA: 229] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Simon Pierce
- Department of Agricultural and Environmental Sciences (DiSAA) University of Milan Via G. Celoria 2 I‐20133 Milan Italy
| | - Daniel Negreiros
- Ecologia Evolutiva e Biodiversidade/DBG ICB/Universidade Federal de Minas Gerais CP 486 30161‐970 Belo Horizonte MG Brazil
| | - Bruno E. L. Cerabolini
- Department of Theoretical and Applied Sciences University of Insubria Via J.H. Dunant 3 I‐21100 Varese Italy
| | - Jens Kattge
- Max Planck Institute for Biogeochemistry P.O. Box 100164 07701 Jena Germany
| | - Sandra Díaz
- Instituto Multidisciplinario de Biología Vegetal (CONICET‐UNC) and FCEFyN Universidad Nacional de Córdoba Av. Vélez Sarsfield 299, 2° piso. 5000 Córdoba Argentina
| | - Michael Kleyer
- Department of Biology, Earth and Environmental Sciences University of Oldenburg 26111 Oldenburg Germany
| | - Bill Shipley
- Département de Biologie Université de Sherbrooke Sherbrooke QuebecJ1K 2R1 Canada
| | | | - Nadejda A. Soudzilovskaia
- Institute of Environmental Sciences CML Leiden University Einsteinweg 2 2333 CC Leiden The Netherlands
| | - Vladimir G. Onipchenko
- Department of Geobotany Faculty of Biology Moscow State University RU‐119991 Moscow Russia
| | - Peter M. van Bodegom
- Institute of Environmental Sciences CML Leiden University Einsteinweg 2 2333 CC Leiden The Netherlands
| | | | - Evan Weiher
- Department of Biology University of Wisconsin‐Eau Claire Eau Claire Wisconsin54702‐4004 USA
| | - Bruno X. Pinho
- Departamento de Botânica Universidade Federal de Pernambuco Cidade Universitária Recife50670‐901 PE Brazil
| | - Johannes H. C. Cornelissen
- Sub‐Department of Systems Ecology Vrije Universiteit de Boelelaan 1085 1081 HV Amsterdam The Netherlands
| | - John Philip Grime
- Department of Animal and Plant Sciences University of Sheffield Alfred Denny Building, Western Bank SheffieldS10 2TN UK
| | - Ken Thompson
- Department of Animal and Plant Sciences University of Sheffield Alfred Denny Building, Western Bank SheffieldS10 2TN UK
| | - Roderick Hunt
- Innovation Centre College of Life and Environmental Sciences University of Exeter Rennes Drive ExeterEX4 4RN UK
| | - Peter J. Wilson
- Department of Animal and Plant Sciences University of Sheffield Alfred Denny Building, Western Bank SheffieldS10 2TN UK
| | - Gabriella Buffa
- Department of Environmental Sciences, Informatics and Statistics University Ca'Foscari of Venice Campo Celestia 2737b – Castello I‐30122 Venice Italy
| | - Oliver C. Nyakunga
- Department of Environmental Sciences, Informatics and Statistics University Ca'Foscari of Venice Campo Celestia 2737b – Castello I‐30122 Venice Italy
- College of African Wildlife Management, Mweka (CAWM) P.O. Box 3031 Moshi Tanzania
| | - Peter B. Reich
- Department of Forest Resources University of Minnesota 530 Cleveland Ave. N. St. Paul Minnesota55108 USA
- Hawkesbury Institute for the Environment University of Western Sydney Penrith New South Wales2751 Australia
| | - Marco Caccianiga
- Department of Biosciences University of Milan Via G. Celoria 26 I‐20133 Milano Italy
| | - Federico Mangili
- Department of Biosciences University of Milan Via G. Celoria 26 I‐20133 Milano Italy
| | - Roberta M. Ceriani
- The Native Flora Centre (Centro Flora Autoctona; CFA) c/o Consorzio Parco Monte Barro, via Bertarelli 11 I‐23851 Galbiate LC Italy
| | - Alessandra Luzzaro
- Department of Agricultural and Environmental Sciences (DiSAA) University of Milan Via G. Celoria 2 I‐20133 Milan Italy
| | - Guido Brusa
- Department of Theoretical and Applied Sciences University of Insubria Via J.H. Dunant 3 I‐21100 Varese Italy
| | - Andrew Siefert
- Department of Evolution and Ecology University of California One Shields Avenue Davis California95616 USA
| | - Newton P. U. Barbosa
- Ecologia Evolutiva e Biodiversidade/DBG ICB/Universidade Federal de Minas Gerais CP 486 30161‐970 Belo Horizonte MG Brazil
| | - Francis Stuart Chapin
- Department of Biology and Wildlife Institute of Arctic Biology University of Alaska Fairbanks Fairbanks Alaska 99775‐7000 USA
| | - William K. Cornwell
- Evolution & Ecology Research Centre School of Biological, Earth and Environmental Sciences University of New South Wales Sydney New South Wales2052 Australia
| | - Jingyun Fang
- Institute of Botany The Chinese Academy of Sciences Xiangshan, Beijing100093 China
| | - Geraldo Wilson Fernandes
- Ecologia Evolutiva e Biodiversidade/DBG ICB/Universidade Federal de Minas Gerais CP 486 30161‐970 Belo Horizonte MG Brazil
- Department of Biology Stanford University Stanford California94035 USA
| | - Eric Garnier
- CNRS Centre d’Écologie Fonctionnelle et Évolutive (CEFE) (UMR 5175) 1919 Route de Mende 34293 Montpellier Cedex 5 France
| | - Soizig Le Stradic
- Gembloux Agro‐Bio Tech Biodiversity and Landscape Unit University of Liege Gembloux5030 Belgium
| | - Josep Peñuelas
- Global Ecology Unit CREAF‐CEAB‐CSIC‐UAB CSIC Cerdanyola del Vallès 08193 Barcelona, Catalonia Spain
- CREAF Cerdanyola del Vallès 08193 Barcelona, Catalonia Spain
| | - Felipe P. L. Melo
- Departamento de Botânica Universidade Federal de Pernambuco Cidade Universitária Recife50670‐901 PE Brazil
| | - Antonio Slaviero
- Department of Environmental Sciences, Informatics and Statistics University Ca'Foscari of Venice Campo Celestia 2737b – Castello I‐30122 Venice Italy
| | - Marcelo Tabarelli
- Departamento de Botânica Universidade Federal de Pernambuco Cidade Universitária Recife50670‐901 PE Brazil
| | - Duccio Tampucci
- Department of Biosciences University of Milan Via G. Celoria 26 I‐20133 Milano Italy
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Anthony KMW, Zimov SA, Grosse G, Jones MC, Anthony PM, Chapin FS, Finlay JC, Mack MC, Davydov S, Frenzel P, Frolking S. A shift of thermokarst lakes from carbon sources to sinks during the Holocene epoch. Nature 2014; 511:452-6. [PMID: 25043014 DOI: 10.1038/nature13560] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Accepted: 06/02/2014] [Indexed: 11/09/2022]
Abstract
Thermokarst lakes formed across vast regions of Siberia and Alaska during the last deglaciation and are thought to be a net source of atmospheric methane and carbon dioxide during the Holocene epoch. However, the same thermokarst lakes can also sequester carbon, and it remains uncertain whether carbon uptake by thermokarst lakes can offset their greenhouse gas emissions. Here we use field observations of Siberian permafrost exposures, radiocarbon dating and spatial analyses to quantify Holocene carbon stocks and fluxes in lake sediments overlying thawed Pleistocene-aged permafrost. We find that carbon accumulation in deep thermokarst-lake sediments since the last deglaciation is about 1.6 times larger than the mass of Pleistocene-aged permafrost carbon released as greenhouse gases when the lakes first formed. Although methane and carbon dioxide emissions following thaw lead to immediate radiative warming, carbon uptake in peat-rich sediments occurs over millennial timescales. We assess thermokarst-lake carbon feedbacks to climate with an atmospheric perturbation model and find that thermokarst basins switched from a net radiative warming to a net cooling climate effect about 5,000 years ago. High rates of Holocene carbon accumulation in 20 lake sediments (47 ± 10 grams of carbon per square metre per year; mean ± standard error) were driven by thermokarst erosion and deposition of terrestrial organic matter, by nutrient release from thawing permafrost that stimulated lake productivity and by slow decomposition in cold, anoxic lake bottoms. When lakes eventually drained, permafrost formation rapidly sequestered sediment carbon. Our estimate of about 160 petagrams of Holocene organic carbon in deep lake basins of Siberia and Alaska increases the circumpolar peat carbon pool estimate for permafrost regions by over 50 per cent (ref. 6). The carbon in perennially frozen drained lake sediments may become vulnerable to mineralization as permafrost disappears, potentially negating the climate stabilization provided by thermokarst lakes during the late Holocene.
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Affiliation(s)
- K M Walter Anthony
- Water and Environmental Research Center, University of Alaska, Fairbanks, Alaska 99775-5860, USA
| | - S A Zimov
- Northeast Scientific Station, Pacific Institute for Geography, Far-East Branch, Russian Academy of Sciences, Cherskii 678830, Russia
| | - G Grosse
- 1] Geophysical Institute, University of Alaska, Fairbanks, Alaska 99775-7320, USA [2] Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Potsdam 14473, Germany
| | - M C Jones
- 1] Water and Environmental Research Center, University of Alaska, Fairbanks, Alaska 99775-5860, USA [2] US Geological Survey, Reston, Virginia 20192, USA
| | - P M Anthony
- Water and Environmental Research Center, University of Alaska, Fairbanks, Alaska 99775-5860, USA
| | - F S Chapin
- Institute of Arctic Biology, University of Alaska, Fairbanks, Alaska 99775-7000, USA
| | - J C Finlay
- Department of Ecology, Evolution and Behavior, University of Minnesota, Saint Paul, Minnesota 55108, USA
| | - M C Mack
- Department of Biology, University of Florida, Gainesville, Florida 32611, USA
| | - S Davydov
- Northeast Scientific Station, Pacific Institute for Geography, Far-East Branch, Russian Academy of Sciences, Cherskii 678830, Russia
| | - P Frenzel
- Max Planck Institute for Terrestrial Microbiology, Marburg 35043, Germany
| | - S Frolking
- Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, Durham, New Hampshire 03824-3525, USA
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4
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Templer PH, Mack MC, Chapin FS, Christenson LM, Compton JE, Crook HD, Currie WS, Curtis CJ, Dail DB, D'Antonio CM, Emmett BA, Epstein HE, Goodale CL, Gundersen P, Hobbie SE, Holland K, Hooper DU, Hungate BA, Lamontagne S, Nadelhoffer KJ, Osenberg CW, Perakis SS, Schleppi P, Schimel J, Schmidt IK, Sommerkorn M, Spoelstra J, Tietema A, Wessel WW, Zak DR. Sinks for nitrogen inputs in terrestrial ecosystems: a meta-analysis of 15N tracer field studies. Ecology 2012; 93:1816-29. [PMID: 22928411 DOI: 10.1890/11-1146.1] [Citation(s) in RCA: 167] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Effects of anthropogenic nitrogen (N) deposition and the ability of terrestrial ecosystems to store carbon (C) depend in part on the amount of N retained in the system and its partitioning among plant and soil pools. We conducted a meta-analysis of studies at 48 sites across four continents that used enriched 15N isotope tracers in order to synthesize information about total ecosystem N retention (i.e., total ecosystem 15N recovery in plant and soil pools) across natural systems and N partitioning among ecosystem pools. The greatest recoveries of ecosystem 15N tracer occurred in shrublands (mean, 89.5%) and wetlands (84.8%) followed by forests (74.9%) and grasslands (51.8%). In the short term (< 1 week after 15N tracer application), total ecosystem 15N recovery was negatively correlated with fine-root and soil 15N natural abundance, and organic soil C and N concentration but was positively correlated with mean annual temperature and mineral soil C:N. In the longer term (3-18 months after 15N tracer application), total ecosystem 15N retention was negatively correlated with foliar natural-abundance 15N but was positively correlated with mineral soil C and N concentration and C:N, showing that plant and soil natural-abundance 15N and soil C:N are good indicators of total ecosystem N retention. Foliar N concentration was not significantly related to ecosystem 15N tracer recovery, suggesting that plant N status is not a good predictor of total ecosystem N retention. Because the largest ecosystem sinks for 15N tracer were below ground in forests, shrublands, and grasslands, we conclude that growth enhancement and potential for increased C storage in aboveground biomass from atmospheric N deposition is likely to be modest in these ecosystems. Total ecosystem 15N recovery decreased with N fertilization, with an apparent threshold fertilization rate of 46 kg N x ha(-1) x yr(-1) above which most ecosystems showed net losses of applied 15N tracer in response to N fertilizer addition.
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Affiliation(s)
- P H Templer
- Department of Biology, Boston University, 5 Cummington Street, Boston, Massachusetts 02215, USA.
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5
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Kinzig AP, Perrings C, Chapin FS, Polasky S, Smith VK, Tilman D, Turner BL. Sustainability. Paying for ecosystem services--promise and peril. Science 2012; 334:603-4. [PMID: 22053032 DOI: 10.1126/science.1210297] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- A P Kinzig
- School of Life Sciences, Arizona State University, Tempe, AZ 85287, USA
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6
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Abstract
The capacity for phosphate absorption by marsh plants is negatively correlated with the soil temperature of the habitat of origin. Species and races from thermally fluctuating environments achieve greater compensatory changes in the phosphate absorption rate through temperature acclimation than their counterparts from more stable environments.
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8
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Gleick PH, Adams RM, Amasino RM, Anders E, Anderson DJ, Anderson WW, Anselin LE, Arroyo MK, Asfaw B, Ayala FJ, Bax A, Bebbington AJ, Bell G, Bennett MVL, Bennetzen JL, Berenbaum MR, Berlin OB, Bjorkman PJ, Blackburn E, Blamont JE, Botchan MR, Boyer JS, Boyle EA, Branton D, Briggs SP, Briggs WR, Brill WJ, Britten RJ, Broecker WS, Brown JH, Brown PO, Brunger AT, Cairns J, Canfield DE, Carpenter SR, Carrington JC, Cashmore AR, Castilla JC, Cazenave A, Chapin FS, Ciechanover AJ, Clapham DE, Clark WC, Clayton RN, Coe MD, Conwell EM, Cowling EB, Cowling RM, Cox CS, Croteau RB, Crothers DM, Crutzen PJ, Daily GC, Dalrymple GB, Dangl JL, Darst SA, Davies DR, Davis MB, De Camilli PV, Dean C, DeFries RS, Deisenhofer J, Delmer DP, DeLong EF, DeRosier DJ, Diener TO, Dirzo R, Dixon JE, Donoghue MJ, Doolittle RF, Dunne T, Ehrlich PR, Eisenstadt SN, Eisner T, Emanuel KA, Englander SW, Ernst WG, Falkowski PG, Feher G, Ferejohn JA, Fersht A, Fischer EH, Fischer R, Flannery KV, Frank J, Frey PA, Fridovich I, Frieden C, Futuyma DJ, Gardner WR, Garrett CJR, Gilbert W, Goldberg RB, Goodenough WH, Goodman CS, Goodman M, Greengard P, Hake S, Hammel G, Hanson S, Harrison SC, Hart SR, Hartl DL, Haselkorn R, Hawkes K, Hayes JM, Hille B, Hökfelt T, House JS, Hout M, Hunten DM, Izquierdo IA, Jagendorf AT, Janzen DH, Jeanloz R, Jencks CS, Jury WA, Kaback HR, Kailath T, Kay P, Kay SA, Kennedy D, Kerr A, Kessler RC, Khush GS, Kieffer SW, Kirch PV, Kirk K, Kivelson MG, Klinman JP, Klug A, Knopoff L, Kornberg H, Kutzbach JE, Lagarias JC, Lambeck K, Landy A, Langmuir CH, Larkins BA, Le Pichon XT, Lenski RE, Leopold EB, Levin SA, Levitt M, Likens GE, Lippincott-Schwartz J, Lorand L, Lovejoy CO, Lynch M, Mabogunje AL, Malone TF, Manabe S, Marcus J, Massey DS, McWilliams JC, Medina E, Melosh HJ, Meltzer DJ, Michener CD, Miles EL, Mooney HA, Moore PB, Morel FMM, Mosley-Thompson ES, Moss B, Munk WH, Myers N, Nair GB, Nathans J, Nester EW, Nicoll RA, Novick RP, O'Connell JF, Olsen PE, Opdyke ND, Oster GF, Ostrom E, Pace NR, Paine RT, Palmiter RD, Pedlosky J, Petsko GA, Pettengill GH, Philander SG, Piperno DR, Pollard TD, Price PB, Reichard PA, Reskin BF, Ricklefs RE, Rivest RL, Roberts JD, Romney AK, Rossmann MG, Russell DW, Rutter WJ, Sabloff JA, Sagdeev RZ, Sahlins MD, Salmond A, Sanes JR, Schekman R, Schellnhuber J, Schindler DW, Schmitt J, Schneider SH, Schramm VL, Sederoff RR, Shatz CJ, Sherman F, Sidman RL, Sieh K, Simons EL, Singer BH, Singer MF, Skyrms B, Sleep NH, Smith BD, Snyder SH, Sokal RR, Spencer CS, Steitz TA, Strier KB, Südhof TC, Taylor SS, Terborgh J, Thomas DH, Thompson LG, Tjian RT, Turner MG, Uyeda S, Valentine JW, Valentine JS, Van Etten JL, van Holde KE, Vaughan M, Verba S, von Hippel PH, Wake DB, Walker A, Walker JE, Watson EB, Watson PJ, Weigel D, Wessler SR, West-Eberhard MJ, White TD, Wilson WJ, Wolfenden RV, Wood JA, Woodwell GM, Wright HE, Wu C, Wunsch C, Zoback ML. Climate change and the integrity of science. Science 2010; 328:689-90. [PMID: 20448167 DOI: 10.1126/science.328.5979.689] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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9
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Euskirchen ES, McGuire AD, Chapin FS, Yi S, Thompson CC. Changes in vegetation in northern Alaska under scenarios of climate change, 2003-2100: implications for climate feedbacks. Ecol Appl 2009; 19:1022-43. [PMID: 19544741 DOI: 10.1890/08-0806.1] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Assessing potential future changes in arctic and boreal plant species productivity, ecosystem composition, and canopy complexity is essential for understanding environmental responses under expected altered climate forcing. We examined potential changes in the dominant plant functional types (PFTs) of the sedge tundra, shrub tundra, and boreal forest ecosystems in ecotonal northern Alaska, USA, for the years 2003-2100. We compared energy feedbacks associated with increases in biomass to energy feedbacks associated with changes in the duration of the snow-free season. We based our simulations on nine input climate scenarios from the Intergovernmental Panel on Climate Change (IPCC) and a new version of the Terrestrial Ecosystem Model (TEM) that incorporates biogeochemistry, vegetation dynamics for multiple PFTs (e.g., trees, shrubs, grasses, sedges, mosses), multiple vegetation pools, and soil thermal regimes. We found mean increases in net primary productivity (NPP) in all PFTs. Most notably, birch (Betula spp.) in the shrub tundra showed increases that were at least three times larger than any other PFT. Increases in NPP were positively related to increases in growing-season length in the sedge tundra, but PFTs in boreal forest and shrub tundra showed a significant response to changes in light availability as well as growing-season length. Significant NPP responses to changes in vegetation uptake of nitrogen by PFT indicated that some PFTs were better competitors for nitrogen than other PFTs. While NPP increased, heterotrophic respiration (RH) also increased, resulting in decreases or no change in net ecosystem carbon uptake. Greater aboveground biomass from increased NPP produced a decrease in summer albedo, greater regional heat absorption (0.34 +/- 0.23 W x m(-2) x 10 yr(-1) [mean +/- SD]), and a positive feedback to climate warming. However, the decrease in albedo due to a shorter snow season (-5.1 +/- 1.6 d/10 yr) resulted in much greater regional heat absorption (3.3 +/- 1.24 W x m(-2) x 10 yr(-1)) than that associated with increases in vegetation. Through quantifying feedbacks associated with changes in vegetation and those associated with changes in the snow season length, we can reach a more integrated understanding of the manner in which climate change may impact interactions between high-latitude ecosystems and the climate system.
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Affiliation(s)
- E S Euskirchen
- Institute of Arctic Biology, University of Alaska, Fairbanks, Alaska 99775, USA.
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10
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Winslow CE, Britten RH, Adams FJ, Ascher CS, Atwater HW, Chapin FS, Churchill HS, Davison RL, Draper ES, Fletcher AH, Ford J, Graves LM, Marquette B, Whittaker HA, Williams H. Report of the Committee on the Hygiene of Housing (A New Method for Measuring the Quality of Urban Housing-A Technic of the Committee on the Hygiene of Housing. Am J Public Health Nations Health 2008; 33:729-40. [PMID: 18015837 DOI: 10.2105/ajph.33.6.729] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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11
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Randerson JT, Liu H, Flanner MG, Chambers SD, Jin Y, Hess PG, Pfister G, Mack MC, Treseder KK, Welp LR, Chapin FS, Harden JW, Goulden ML, Lyons E, Neff JC, Schuur EAG, Zender CS. The Impact of Boreal Forest Fire on Climate Warming. Science 2006; 314:1130-2. [PMID: 17110574 DOI: 10.1126/science.1132075] [Citation(s) in RCA: 164] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
We report measurements and analysis of a boreal forest fire, integrating the effects of greenhouse gases, aerosols, black carbon deposition on snow and sea ice, and postfire changes in surface albedo. The net effect of all agents was to increase radiative forcing during the first year (34 +/- 31 Watts per square meter of burned area), but to decrease radiative forcing when averaged over an 80-year fire cycle (-2.3 +/- 2.2 Watts per square meter) because multidecadal increases in surface albedo had a larger impact than fire-emitted greenhouse gases. This result implies that future increases in boreal fire may not accelerate climate warming.
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Affiliation(s)
- J T Randerson
- Department of Earth System Science, University of California, Irvine, CA 92697, USA.
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12
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Walter KM, Zimov SA, Chanton JP, Verbyla D, Chapin FS. Methane bubbling from Siberian thaw lakes as a positive feedback to climate warming. Nature 2006; 443:71-5. [PMID: 16957728 DOI: 10.1038/nature05040] [Citation(s) in RCA: 198] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2005] [Accepted: 07/03/2006] [Indexed: 11/08/2022]
Abstract
Large uncertainties in the budget of atmospheric methane, an important greenhouse gas, limit the accuracy of climate change projections. Thaw lakes in North Siberia are known to emit methane, but the magnitude of these emissions remains uncertain because most methane is released through ebullition (bubbling), which is spatially and temporally variable. Here we report a new method of measuring ebullition and use it to quantify methane emissions from two thaw lakes in North Siberia. We show that ebullition accounts for 95 per cent of methane emissions from these lakes, and that methane flux from thaw lakes in our study region may be five times higher than previously estimated. Extrapolation of these fluxes indicates that thaw lakes in North Siberia emit 3.8 teragrams of methane per year, which increases present estimates of methane emissions from northern wetlands (< 6-40 teragrams per year; refs 1, 2, 4-6) by between 10 and 63 per cent. We find that thawing permafrost along lake margins accounts for most of the methane released from the lakes, and estimate that an expansion of thaw lakes between 1974 and 2000, which was concurrent with regional warming, increased methane emissions in our study region by 58 per cent. Furthermore, the Pleistocene age (35,260-42,900 years) of methane emitted from hotspots along thawing lake margins indicates that this positive feedback to climate warming has led to the release of old carbon stocks previously stored in permafrost.
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Affiliation(s)
- K M Walter
- Institute of Arctic Biology, University of Alaska Fairbanks, Alaska 99775, USA.
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13
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Chapin FS, Sturm M, Serreze MC, McFadden JP, Key JR, Lloyd AH, McGuire AD, Rupp TS, Lynch AH, Schimel JP, Beringer J, Chapman WL, Epstein HE, Euskirchen ES, Hinzman LD, Jia G, Ping CL, Tape KD, Thompson CDC, Walker DA, Welker JM. Role of Land-Surface Changes in Arctic Summer Warming. Science 2005; 310:657-60. [PMID: 16179434 DOI: 10.1126/science.1117368] [Citation(s) in RCA: 322] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
A major challenge in predicting Earth's future climate state is to understand feedbacks that alter greenhouse-gas forcing. Here we synthesize field data from arctic Alaska, showing that terrestrial changes in summer albedo contribute substantially to recent high-latitude warming trends. Pronounced terrestrial summer warming in arctic Alaska correlates with a lengthening of the snow-free season that has increased atmospheric heating locally by about 3 watts per square meter per decade (similar in magnitude to the regional heating expected over multiple decades from a doubling of atmospheric CO2). The continuation of current trends in shrub and tree expansion could further amplify this atmospheric heating by two to seven times.
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Affiliation(s)
- F S Chapin
- Institute of Arctic Biology; University of Alaska Fairbanks, Fairbanks, AK 99775, USA.
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14
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Chapin FS, Peterson G, Berkes F, Callaghan TV, Angelstam P, Apps M, Beier C, Bergeron Y, Crépin AS, Danell K, Elmqvist T, Folke C, Forbes B, Fresco N, Juday G, Niemelä J, Shvidenko A, Whiteman G. Resilience and vulnerability of northern regions to social and environmental change. Ambio 2004; 33:344-349. [PMID: 15387072 DOI: 10.1579/0044-7447-33.6.344] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The arctic tundra and boreal forest were once considered the last frontiers on earth because of their vast expanses remote from agricultural land-use change and industrial development. These regions are now, however, experiencing environmental and social changes that are as rapid as those occurring anywhere on earth. This paper summarizes the role of northern regions in the global system and provides a blueprint for assessing the factors that govern their sensitivity to social and environmental change.
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Affiliation(s)
- F S Chapin
- Institute of Arctic Biology, University of Alaska, Fairbanks, AK 99775, USA.
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15
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16
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Abstract
Carbon accumulation in the terrestrial biosphere could partially offset the effects of anthropogenic CO2 emissions on atmospheric CO2. The net impact of increased CO2 on the carbon balance of terrestrial ecosystems is unclear, however, because elevated CO2 effects on carbon input to soils and plant use of water and nutrients often have contrasting effects on microbial processes. Here we show suppression of microbial decomposition in an annual grassland after continuous exposure to increased CO2 for five growing seasons. The increased CO2 enhanced plant nitrogen uptake, microbial biomass carbon, and available carbon for microbes. But it reduced available soil nitrogen, exacerbated nitrogen constraints on microbes, and reduced microbial respiration per unit biomass. These results indicate that increased CO2 can alter the interaction between plants and microbes in favour of plant utilization of nitrogen, thereby slowing microbial decomposition and increasing ecosystem carbon accumulation.
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Affiliation(s)
- S Hu
- Department of Integrative Biology, University of California, Berkeley 94720, USA.
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17
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Kittel TGF, Steffen WL, Chapin FS. Global and regional modelling of Arctic-boreal vegetation distribution and its sensitivity to altered forcing. Glob Chang Biol 2000; 6:1-18. [PMID: 35026933 DOI: 10.1046/j.1365-2486.2000.06011.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Understanding the distribution and function of Arctic and boreal ecosystems under current conditions and their vulnerability to altered forcing is crucial to our assessment of future global environmental change. Such efforts can be facilitated by the development and application of ecological models that simulate realistic patterns of vegetation change at high latitudes. This paper reviews three classes of ecological models that have been implemented to extrapolate vegetation information in space (e.g. across the Arctic and adjacent domains) and over historical and future periods (e.g. under altered climate and other forcings). These are: (i) equilibrium biogeographical models; (ii) frame-based transient ecosystem models, and (iii) dynamic global vegetation models (DGVMs). The equilibrium response of high-latitude vegetation to scenarios of increased surface air temperatures projected by equilibrium biogeographical models is for tundra to be replaced by a northward shift of boreal woodland and forests. A frame-based model (ALFRESCO) indicates the same directional changes, but illustrates how response time depends on rate of temperature increase and concomitant changes in moisture regime and fire disturbance return period. Key disadvantages of the equilibrium models are that they do not simulate time-dependent responses of vegetation and the role of disturbance is omitted or highly generalized. Disadvantages of the frame-based models are that vegetation type is modelled as a set unit as opposed to an association of individually simulated plant functional types and that the role of ecosystem biogeochemistry in succession is not explicitly considered. DGVMs explicitly model disturbance (e.g. fire), operate on plant functional types, and incorporate constraints of nutrient availability on biomass production in the simulation of vegetation dynamics. Under changing climate, DGVMs detail conversion of tundra to tree-dominated boreal landscapes along with time-dependent responses of biomass, net primary production, and soil organic matter turnover--which all increase with warming. Key improvements to DGVMs that are needed to portray behaviour of arctic and boreal ecosystems adequately are the inclusion of anaerobic soil processes for inundated landscapes, permafrost dynamics, and moss-lichen layer biogeochemistry, as well as broader explicit accounting of disturbance regimes (including insect outbreaks and land management). Transient simulation of these landscapes can be further tailored to high-latitude processes and issues by spatially interactive, gridded application of arctic/boreal frame-based models and development of dynamic regional vegetation models (DRVMs) utilizing plant functional type schemes that capture the variety of high-latitude environments.
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Affiliation(s)
- T G F Kittel
- National Center for Atmospheric Research, Box 3000, Boulder, CO 80307-3000, USA
| | - W L Steffen
- International Geosphere-Biosphere Programme Secretariat, Box 50005, S-104 05, Stockholm, Sweden
| | - F S Chapin
- Institute of Arctic Biology, University of Alaska, Fairbanks, AK 99775, USA
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18
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Chapin FS, Mcguire AD, Randerson J, Pielke R, Baldocchi D, Hobbie SE, Roulet N, Eugster W, Kasischke E, Rastetter EB, Zimov SA, Running SW. Arctic and boreal ecosystems of western North America as components of the climate system. Glob Chang Biol 2000; 6:211-223. [PMID: 35026938 DOI: 10.1046/j.1365-2486.2000.06022.x] [Citation(s) in RCA: 135] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Synthesis of results from several Arctic and boreal research programmes provides evidence for the strong role of high-latitude ecosystems in the climate system. Average surface air temperature has increased 0.3 °C per decade during the twentieth century in the western North American Arctic and boreal forest zones. Precipitation has also increased, but changes in soil moisture are uncertain. Disturbance rates have increased in the boreal forest; for example, there has been a doubling of the area burned in North America in the past 20 years. The disturbance regime in tundra may not have changed. Tundra has a 3-6-fold higher winter albedo than boreal forest, but summer albedo and energy partitioning differ more strongly among ecosystems within either tundra or boreal forest than between these two biomes. This indicates a need to improve our understanding of vegetation dynamics within, as well as between, biomes. If regional surface warming were to continue, changes in albedo and energy absorption would likely act as a positive feedback to regional warming due to earlier melting of snow and, over the long term, the northward movement of treeline. Surface drying and a change in dominance from mosses to vascular plants would also enhance sensible heat flux and regional warming in tundra. In the boreal forest of western North America, deciduous forests have twice the albedo of conifer forests in both winter and summer, 50-80% higher evapotranspiration, and therefore only 30-50% of the sensible heat flux of conifers in summer. Therefore, a warming-induced increase in fire frequency that increased the proportion of deciduous forests in the landscape, would act as a negative feedback to regional warming. Changes in thermokarst and the aerial extent of wetlands, lakes, and ponds would alter high-latitude methane flux. There is currently a wide discrepancy among estimates of the size and direction of CO2 flux between high-latitude ecosystems and the atmosphere. These discrepancies relate more strongly to the approach and assumptions for extrapolation than to inconsistencies in the underlying data. Inverse modelling from atmospheric CO2 concentrations suggests that high latitudes are neutral or net sinks for atmospheric CO2 , whereas field measurements suggest that high latitudes are neutral or a net CO2 source. Both approaches rely on assumptions that are difficult to verify. The most parsimonious explanation of the available data is that drying in tundra and disturbance in boreal forest enhance CO2 efflux. Nevertheless, many areas of both tundra and boreal forests remain net sinks due to regional variation in climate and local variation in topographically determined soil moisture. Improved understanding of the role of high-latitude ecosystems in the climate system requires a concerted research effort that focuses on geographical variation in the processes controlling land-atmosphere exchange, species composition, and ecosystem structure. Future studies must be conducted over a long enough time-period to detect and quantify ecosystem feedbacks.
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Affiliation(s)
- F S Chapin
- Institute of Arctic Biology, University of Alaska, Fairbanks, AK 99775, USA
| | - A D Mcguire
- US Geological Survey, Alaska Cooperative Fish and Wildlife Research Unit, University of Alaska, Fairbanks, AK 99775, USA
| | - J Randerson
- Department of Atmospheric Sciences, University of California, Berkeley, CA 94720, USA
| | - R Pielke
- Department of Atmospheric Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - D Baldocchi
- Atmospheric Turbulence and Diffusion Division, PO Box 2456, Oak Ridge, TN 37831, USA
| | - S E Hobbie
- Department of Ecology, Evolution, and Behaviour, University of Minnesota, St. Paul MN 55108, USA
| | - N Roulet
- Department of Geography, McGill University, Montreal, Quebec, Canada H3A 2K6
| | - W Eugster
- Institute of Geography, University of Bern, CH-3012 Bern, Switzerland
| | - E Kasischke
- ERIM International, Inc., PO Box 134008, Ann Arbor, MI 48113-4008, USA
| | - E B Rastetter
- Ecosystem Center, Marine Biological Laboratory, Woods Hole, MA 02543, USA
| | - S A Zimov
- North-East Science Station, PO Box 18, Cherskii, Republic of Sakha (Yakutia), 678830 Russia, School of Forestry, University of Montana, Missoula, MT 59812-1063, USA
| | - S W Running
- North-East Science Station, PO Box 18, Cherskii, Republic of Sakha (Yakutia), 678830 Russia, School of Forestry, University of Montana, Missoula, MT 59812-1063, USA
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Chapin FS, Zavaleta ES, Eviner VT, Naylor RL, Vitousek PM, Reynolds HL, Hooper DU, Lavorel S, Sala OE, Hobbie SE, Mack MC, Díaz S. Consequences of changing biodiversity. Nature 2000; 405:234-42. [PMID: 10821284 DOI: 10.1038/35012241] [Citation(s) in RCA: 1353] [Impact Index Per Article: 56.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Human alteration of the global environment has triggered the sixth major extinction event in the history of life and caused widespread changes in the global distribution of organisms. These changes in biodiversity alter ecosystem processes and change the resilience of ecosystems to environmental change. This has profound consequences for services that humans derive from ecosystems. The large ecological and societal consequences of changing biodiversity should be minimized to preserve options for future solutions to global environmental problems.
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Affiliation(s)
- F S Chapin
- Institute of Arctic Biology, University of Alaska, Fairbanks 99775, USA.
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Sala OE, Chapin FS, Armesto JJ, Berlow E, Bloomfield J, Dirzo R, Huber-Sanwald E, Huenneke LF, Jackson RB, Kinzig A, Leemans R, Lodge DM, Mooney HA, Oesterheld M, Poff NL, Sykes MT, Walker BH, Walker M, Wall DH. Global biodiversity scenarios for the year 2100. Science 2000; 287:1770-4. [PMID: 10710299 DOI: 10.1126/science.287.5459.1770] [Citation(s) in RCA: 3027] [Impact Index Per Article: 126.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Scenarios of changes in biodiversity for the year 2100 can now be developed based on scenarios of changes in atmospheric carbon dioxide, climate, vegetation, and land use and the known sensitivity of biodiversity to these changes. This study identified a ranking of the importance of drivers of change, a ranking of the biomes with respect to expected changes, and the major sources of uncertainties. For terrestrial ecosystems, land-use change probably will have the largest effect, followed by climate change, nitrogen deposition, biotic exchange, and elevated carbon dioxide concentration. For freshwater ecosystems, biotic exchange is much more important. Mediterranean climate and grassland ecosystems likely will experience the greatest proportional change in biodiversity because of the substantial influence of all drivers of biodiversity change. Northern temperate ecosystems are estimated to experience the least biodiversity change because major land-use change has already occurred. Plausible changes in biodiversity in other biomes depend on interactions among the causes of biodiversity change. These interactions represent one of the largest uncertainties in projections of future biodiversity change.
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Affiliation(s)
- O E Sala
- Department of Ecology and Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura, Faculty of Agronomy, University of Buenos Aires, Avenida San Martín 4453, Buenos Aires 1417, Argentina.
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21
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Sala OE, Chapin FS, Armesto JJ, Berlow E, Bloomfield J, Dirzo R, Huber-Sanwald E, Huenneke LF, Jackson RB, Kinzig A, Leemans R, Lodge DM, Mooney HA, Oesterheld M, Poff NL, Sykes MT, Walker BH, Walker M, Wall DH. Global biodiversity scenarios for the year 2100. Science 2000; 287:1770-1774. [PMID: 10710299 DOI: 10.1126/scince.287.5459.1770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Scenarios of changes in biodiversity for the year 2100 can now be developed based on scenarios of changes in atmospheric carbon dioxide, climate, vegetation, and land use and the known sensitivity of biodiversity to these changes. This study identified a ranking of the importance of drivers of change, a ranking of the biomes with respect to expected changes, and the major sources of uncertainties. For terrestrial ecosystems, land-use change probably will have the largest effect, followed by climate change, nitrogen deposition, biotic exchange, and elevated carbon dioxide concentration. For freshwater ecosystems, biotic exchange is much more important. Mediterranean climate and grassland ecosystems likely will experience the greatest proportional change in biodiversity because of the substantial influence of all drivers of biodiversity change. Northern temperate ecosystems are estimated to experience the least biodiversity change because major land-use change has already occurred. Plausible changes in biodiversity in other biomes depend on interactions among the causes of biodiversity change. These interactions represent one of the largest uncertainties in projections of future biodiversity change.
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Affiliation(s)
- O E Sala
- Department of Ecology and Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura, Faculty of Agronomy, University of Buenos Aires, Avenida San Martín 4453, Buenos Aires 1417, Argentina.
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Abstract
Increased atmospheric CO2 concentration often stimulates plant photosynthesis, enhances carbon (C) allocation below-ground, increases plant nutrient uptake and improves the efficiency of plant water use. Recent studies suggest that microbial responses to CO2-induced alterations in soil C, water and nutrient availability play an important role in determining ecosystem feedback to CO2 elevation. However, to date, most of the published results have been obtained from short-term experiments or from studies using high-nutrient or disturbed soils. Information on microbial responses to CO2-induced changes in natural and/or mature ecosystems with nutrient limitations is critical to predict changes in terrestrial ecosystem C storage under future CO2 scenarios.
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Zimov SA, Davidov SP, Zimova GM, Davidova AI, Chapin FS, Chapin MC, Reynolds JF. Contribution of disturbance to increasing seasonal amplitude of atmospheric CO2. Science 1999; 284:1973-6. [PMID: 10373112 DOI: 10.1126/science.284.5422.1973] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Recent increases in the seasonal amplitude of atmospheric carbon dioxide (CO2) at high latitudes suggest a widespread biospheric response to high-latitude warming. The seasonal amplitude of net ecosystem carbon exchange by northern Siberian ecosystems is shown to be greater in disturbed than undisturbed sites, due to increased summer influx and increased winter efflux. Increased disturbance could therefore contribute significantly to the amplified seasonal cycle of atmospheric carbon dioxide at high latitudes. Warm temperatures reduced summer carbon influx, suggesting that high-latitude warming, if it occurred, would be unlikely to increase seasonal amplitude of carbon exchange.
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Affiliation(s)
- SA Zimov
- North-East Scientific Station, Pacific Institute for Geography, Far-East Branch, Russian Academy of Sciences, Republic of Sakha, Yakutia, 678830 Cherskii, Russia. Institute of Arctic Biology, University of Alaska, Fairbanks, AK 99775-7000
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Schulze ED, Chapin FS, Gebauer G. Nitrogen nutrition and isotope differences among life forms at the northern treeline of Alaska. Oecologia 1994; 100:406-412. [PMID: 28306929 DOI: 10.1007/bf00317862] [Citation(s) in RCA: 179] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/1994] [Accepted: 09/12/1994] [Indexed: 11/30/2022]
Abstract
Natural abundances of nitrogen isotopes, δ15N, indicate that, in the same habitat, Alaskan Picea glauca and P. mariana use a different soil nitrogen compartment from the evergreen shrub Vaccinium vitis-idaea or the deciduous grass Calamagrostis canadensis. The very low δ15N values (-7.7 ‰) suggest that (1) Picea mainly uses inorganic nitrogen (probably mainly ammonium) or organic N in fresh litter, (2) Vaccinium (-4.3 ‰) with its ericoid mycorrhizae uses more stable organic matter, and (3) Calamagrostis (+0.9 ‰) exploits deeper soil horizons with higher δ15N values of soil N. We conclude that species limited by the same nutrient may coexist by drawing on different pools of soil N in a nutrient-deficient environment. The differences among life-forms decrease with increasing N availability. The different levels of δ15N are associated with different nitrogen concentrations in leaves, Picea having a lower N concentration (0.62 mmol g-1) than Vaccinium (0.98 mmol g-1) or Calamagrostis (1.33 mmol g-1). An extended vector analysis by Timmer and Armstrong (1987) suggests that N is the most limiting element for Picea in this habitat, causing needle yellowing at N concentrations below 0.5 mmol g-1 or N contents below 2 mmol needle-1. Increasing N supply had an exponential effect on twig and needle growth. Phosphorus, potassium and magnesium are at marginal supply, but no interaction between ammonium supply and needle Mg concentration could be detected. Calcium is in adequate supply on both calcareous and acidic soils. The results are compared with European conditions of excessive N supply from anthropogenic N depositions.
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Affiliation(s)
- E-D Schulze
- Lehrstuhl Pflanzenökologie, Universität Bayreuth, D-95440, Bayreuth, Germany
| | - F S Chapin
- Department of Integrative Biology, University of California, 94720, Berkeley, CA, USA
| | - G Gebauer
- Lehrstuhl Pflanzenökologie, Universität Bayreuth, D-95440, Bayreuth, Germany
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Reichardt PB, Chapin FS, Bryant JP, Mattes BR, Clausen TP. Carbon/nutrient balance as a predictor of plant defense in Alaskan balsam poplar: Potential importance of metabolite turnover. Oecologia 1991; 88:401-406. [PMID: 28313803 DOI: 10.1007/bf00317585] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/1990] [Accepted: 06/10/1991] [Indexed: 10/26/2022]
Abstract
The carbon/nutrient balance hypothesis fails to correctly predict effects of fertilization and shading on concentrations of defensive metabolites in Alaskan balsam poplar (Populus balsamifera). Of six metabolites analyzed, only one responded in the predicted fashion to fertilization and one to shading. These results and those of other similar studies suggest that while the carbon/nutrient balance hypothesis may correctly predict the effects of fertilization and shading on the concentrations of metabolic "end products", it fails for many metabolites because of the dynamics associated with their production and turnover. In metabolites that turn over, static concentration is a poor predictor of defensive investment.
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Affiliation(s)
- P B Reichardt
- Department of Chemistry, University of Alaska, 99775, Fairbanks, AK, USA
| | - F S Chapin
- Department of Chemistry, University of Alaska, 99775, Fairbanks, AK, USA
| | - J P Bryant
- Institute of Arctic Biology, University of Alaska, 99775, Fairbanks, AK, USA
| | - B R Mattes
- Department of Chemistry, University of Alaska, 99775, Fairbanks, AK, USA
| | - T P Clausen
- Department of Chemistry, University of Alaska, 99775, Fairbanks, AK, USA
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Abstract
Alders (Alnus crispa) in shrub tundra in northern Alaska showed significant regularity of spacing. Removal of neighboring alder shrubs stimulated nutrient accumulation and growth of remaining alders but did not stimulate nutrient accumulation or growth of any other shrub species. This demonstrates that neighboring alders competed with one another and that, when alders were removed, the resources made available were used preferentially by remaining alders rather than by the community in general. Neither patterns of seedling establishment nor patterns of frostrelated features could explain the regular distribution of alder. We suggest that regular patterns of plant distribution are restricted to sites of low-resource availability, because in these habitats (1) there is strong competition for a scarce resource, and (2) there are only one or a few dominant species to compete for these resources in a given canopy height or rooting depth.
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Affiliation(s)
- F S Chapin
- Institute of Arctic Biology, University of Alaska Fairbanks, 99775-0180, Fairbanks, AK, USA
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Chapin FS, Walter CH, Clarkson DT. Growth response of barley and tomato to nitrogen stress and its control by abscisic acid, water relations and photosynthesis. Planta 1988; 173:352-66. [PMID: 24226542 DOI: 10.1007/bf00401022] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/1987] [Accepted: 08/18/1987] [Indexed: 05/10/2023]
Abstract
Barley (Hordeum vulgare L.) and tomato Lycopersicon esculentum Mill.) were grown hydroponically and examined 2, 5, and 10 d after being deprived of nitrogen (N) supply. Leaf elongation rate declined in both species in response to N stress before there was any reduction in rate of dryweight accumulation. Changes in water transport to the shoot could not explain reduced leaf elongation in tomato because leaf water content and water potential were unaffected by N stress at the time leaf elongation began to decline. Tomato maintained its shoot water status in N-stressed plants, despite reduced water absorption per gram root, because the decline in root hydraulic conductance with N stress was matched by a decline in stomatal conductance. In barley the decline in leaf elongation coincided with a small (8%) decline in water content per unit area of young leaves; this decline occurred because root hydraulic conductance was reduced more strongly by N stress than was stomatal conductance. Nitrogen stress caused a rapid decline in tissue NO 3 (-) pools and in NO 3 (-) flux to the xylem, particularly in tomato which had smaller tissue NO 3 (-) reserves. Even in barley, tissue NO 3 (-) reserves were too small and were mobilized too slowly (60% in 2 d) to support maximal growth for more than a few hours. Organic N mobilized from old leaves provided an additional N source to support continued growth of N-stressed plants. Abscisic acid (ABA) levels increased in leaves of both species within 2 d in response to N stress. Addition of ABA to roots caused an increase in volume of xylem exudate but had no effect upon NO 3 (-) flux to the xylem. After leaf-elongation rate had been reduced by N stress, photosynthesis declined in both barley and tomato. This decline was associated with increased leaf ABA content, reduced stomatal conductance and a decrease in organic N content. We suggest that N stress reduces growth by several mechanisms operating on different time scales: (1) increased leaf ABA content causing reduced cell-wall extensibility and leaf elongation and (2) a more gradual decline in photosynthesis caused by ABA-induced stomatal closure and by a decrease in leaf organic N.
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Affiliation(s)
- F S Chapin
- Institute of Arctic Biology, University of Alaska, 99775, Fairbanks, AK, USA
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Chapin FS, Clarkson DT, Lenton JR, Walter CH. Effect of nitrogen stress and abscisic acid on nitrate absorption and transport in barley and tomato. Planta 1988; 173:340-351. [PMID: 24226541 DOI: 10.1007/bf00401021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/1987] [Accepted: 06/26/1987] [Indexed: 06/02/2023]
Abstract
The potential of barley (Hordeum vulgare L.) and tomato (Lycopersicon esculentum Mill.) roots for net NO 3 (-) absorption increased two-to five fold within 2 d of being deprived of NO 3 (-) supply. Nitrogen-starved barley roots continued to maintain a high potential for NO 3 (-) absorption, whereas NO 3 (-) absorption by tomato roots declined below control levels after 10 d of N starvation. When placed in a 0.2 mM NO 3 (-) solution, roots of both species transported more NO 3 (-) and total solutes to the xylem after 2 d of N starvation than did N-sufficient controls. However, replenishment of root NO 3 (-) stores took precedence over NO 3 (-) transport to the xylem. Consequently, as N stress became more severe, transport of NO 3 (-) and total solutes to the xylem declined, relative to controls. Nitrogen stress caused an increase in hydraulic conductance (L p) and exudate volume (J v) in barley but decrased these parameters in tomato. Nitrogen stress had no significant effect upon abscisic acid (ABA) levels in roots of barley or flacca (a low-ABA mutant) tomato, but prevented an agerelated decline in ABA in wild-type tomato roots. Applied ABA had the same effect upon barley and upon the wild type and flacca tomatoes: L p and J v were increased, but NO 3 (-) absorption and NO 3 (-) flux to the xylem were either unaffected or sometimes inhibited. We conclude that ABA is not directly involved in the normal changes in NO 3 (-) absorption and transport that occur with N stress in barley and tomato, because (1) the root ABA level was either unaffected by N stress (barley and flacca tomato) or changed, after the greatest changes in NO 3 (-) absorption and transport and L p had been observed (wild-type tomato); (2) changes in NO 3 (-) absorption/transport characteristics either did not respond to applied ABA, or, if they did, they changed in the direction opposite to that predicted from changes in root ABA with N stress; and (3) the flacca tomato (which produces very little ABA in response to N stress) responded to N stress with very similar changes in NO 3 (-) transport to those observed in the wild type.
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Affiliation(s)
- F S Chapin
- Institute of Arctic Biology, University of Alaska, 99775, Fairbanks, AK, USA
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Bryant JP, Chapin FS, Reichardt PB, Clausen TP. Response of winter chemical defense in Alaska paper birch and green alder to manipulation of plant carbon/nutrient balance. Oecologia 1987; 72:510-514. [PMID: 28312511 DOI: 10.1007/bf00378975] [Citation(s) in RCA: 107] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/1986] [Indexed: 11/28/2022]
Abstract
Plant carbon/nutrient balance has been implicated as an important factor in plant defensive chemistry and palatability to herbivores. We tested this hypothesis by fertilizing juvenile growth form Alaska paper birch and green alder with N, P and N-plus-P in a balanced 2x2 factorial experiment. Additionally, we shaded unfertilized plants of both species. Fertilization with N and N-plus-P increased growth of Alaska paper birch, reduced the concentration of papyriferic acid in internodes and increased the palatability of birch twigs to snowshoe hares. Shading decreased birch growth, decreased the concentration of papyriferic acid in internodes and increased twig palatability. These results indicate that the defensive chemistry and palatability of winter-dormant juvenile Alaska paper birch are sensitive to soil fertility and shade. Conversely the defensive chemistry and palatability of green alder twigs to snowshoe hares were not significantly affected by soil fertility or shade. The greater sensitivity of Alaska paper birch defensive chemistry and palatability to snowshoe hares in comparison to green alder is in agreement with the hypothesis that early successional woody plants that are adapted to high resource availability are more plastic in their chemical responses to the physical environment than are species from less favorable environments.
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Affiliation(s)
- J P Bryant
- Institute of Arctic Biology, University of Alaska, 99775-0180, Fairbanks, AK, USA
| | - F S Chapin
- Institute of Arctic Biology, University of Alaska, 99775-0180, Fairbanks, AK, USA
| | - P B Reichardt
- Department of Chemistry, University of Alaska, 99775-0180, Fairbanks, AK, USA
| | - T P Clausen
- Department of Chemistry, University of Alaska, 99775-0180, Fairbanks, AK, USA
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Abstract
The degree of herbivory and the effectiveness of defense varies widely among plant species. Resource availability in the environment is proposed as the major determinant of both the amount and type of plant defense. When resource are limited, plants with inherently slow growth are favored over those with fast growth rates; slow rates in turn favor large investments in antiherbivore defenses. Leaf lifetime, also determined by resource availability, affects the relative advantages of defenses with different turnover rates. Relative limitation of different resources also constrains the types of defenses. The proposals are compared with other theories on the evolution of plant defenses.
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Bloom AJ, Chapin FS. Differences in steady-state net ammonium and nitrate influx by cold- and warm-adapted barley varieties. Plant Physiol 1981; 68:1064-7. [PMID: 16662052 PMCID: PMC426046 DOI: 10.1104/pp.68.5.1064] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
A flowing nutrient culture system permitted relatively rapid determination of the steady-state net nitrogen influx by an intact barley (Hardeum vulgare L. cv Kombar and Olli) plant. Ion-selective electrodes monitored the depletion of ammonium and nitrate from a nutrient solution after a single pass through a root cuvette. Influx at concentrations as low as 4 micromolar was measured. Standard errors for a sample size of three plants were typically less than 10% of the mean.When grown under identical conditions, a variety of barley bred for cold soils had higher nitrogen influx rates at low concentrations and low temperatures than one bred for warm soils, whereas the one bred for warm soils had higher influx rates at high concentrations and high temperatures. Ammonium was more readily absorbed than nitrate by both varieties at all concentrations and temperatures tested. Ammonium and nitrate influx in both varieties were equally inhibited by low temperatures.
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Affiliation(s)
- A J Bloom
- Institute of Arctic Biology, University of Alaska, Fairbanks, Alaska 99701
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Scaife MA, Chapin FS. Effect of Low-Phosphate Pretreatment of Plant Species with Different Relative Growth Rates on Subsequent Phosphate Uptake. Science 1974; 186:847. [PMID: 17838601 DOI: 10.1126/science.186.4166.847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Marquette B, Twichell AA, Ascher CS, Britten RH, Burgdorf AL, Chapin FS, Churchill HS, Cornelly PB, Craster CV, Dillehay HJ, Downs MD, Farrier CW, Fletcher AH, Graves LM, Pettit BM, Williams H. Studies of the Effect of the Provision of Good Housing on Health. Am J Public Health Nations Health 1947; 37:303-306. [PMID: 18016497 PMCID: PMC1623463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
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