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Sarneel JM, Hefting MM, Sandén T, van den Hoogen J, Routh D, Adhikari BS, Alatalo JM, Aleksanyan A, Althuizen IHJ, Alsafran MHSA, Atkins JW, Augusto L, Aurela M, Azarov AV, Barrio IC, Beier C, Bejarano MD, Benham SE, Berg B, Bezler NV, Björnsdóttir K, Bolinder MA, Carbognani M, Cazzolla Gatti R, Chelli S, Chistotin MV, Christiansen CT, Courtois P, Crowther TW, Dechoum MS, Djukic I, Duddigan S, Egerton-Warburton LM, Fanin N, Fantappiè M, Fares S, Fernandes GW, Filippova NV, Fliessbach A, Fuentes D, Godoy R, Grünwald T, Guzmán G, Hawes JE, He Y, Hero JM, Hess LL, Hogendoorn K, Høye TT, Jans WWP, Jónsdóttir IS, Keller S, Kepfer-Rojas S, Kuz'menko NN, Larsen KS, Laudon H, Lembrechts JJ, Li J, Limousin JM, Lukin SM, Marques R, Marín C, McDaniel MD, Meek Q, Merzlaya GE, Michelsen A, Montagnani L, Mueller P, Murugan R, Myers-Smith IH, Nolte S, Ochoa-Hueso R, Okafor BN, Okorkov VV, Onipchenko VG, Orozco MC, Parkhurst T, Peres CA, Petit Bon M, Petraglia A, Pingel M, Rebmann C, Scheffers BR, Schmidt I, Scholes MC, Sheffer E, Shevtsova LK, Smith SW, Sofo A, Stevenson PR, Strouhalová B, Sundsdal A, Sühs RB, Tamene G, Thomas HJD, Tolunay D, Tomaselli M, Tresch S, Tucker DL, Ulyshen MD, Valdecantos A, Vandvik V, Vanguelova EI, Verheyen K, Wang X, Yahdjian L, Yumashev XS, Keuskamp JA. Reading tea leaves worldwide: Decoupled drivers of initial litter decomposition mass-loss rate and stabilization. Ecol Lett 2024; 27:e14415. [PMID: 38712683 DOI: 10.1111/ele.14415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 01/26/2024] [Accepted: 02/27/2024] [Indexed: 05/08/2024]
Abstract
The breakdown of plant material fuels soil functioning and biodiversity. Currently, process understanding of global decomposition patterns and the drivers of such patterns are hampered by the lack of coherent large-scale datasets. We buried 36,000 individual litterbags (tea bags) worldwide and found an overall negative correlation between initial mass-loss rates and stabilization factors of plant-derived carbon, using the Tea Bag Index (TBI). The stabilization factor quantifies the degree to which easy-to-degrade components accumulate during early-stage decomposition (e.g. by environmental limitations). However, agriculture and an interaction between moisture and temperature led to a decoupling between initial mass-loss rates and stabilization, notably in colder locations. Using TBI improved mass-loss estimates of natural litter compared to models that ignored stabilization. Ignoring the transformation of dead plant material to more recalcitrant substances during early-stage decomposition, and the environmental control of this transformation, could overestimate carbon losses during early decomposition in carbon cycle models.
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Affiliation(s)
- Judith M Sarneel
- Department of Ecology and Environmental Science, Umeå Universitet, Umeå, Sweden
- Ecology and Biodiversity Group, Institute of Environmental Biology, Utrecht University, Utrecht, The Netherlands
| | - Mariet M Hefting
- Ecology and Biodiversity Group, Institute of Environmental Biology, Utrecht University, Utrecht, The Netherlands
| | - Taru Sandén
- Department for Soil Health and Plant Nutrition, Austrian Agency for Health and Food Safety (AGES), Vienna, Austria
| | - Johan van den Hoogen
- Department of Environmental Systems Science, Institute of Integrative Biology, ETH Zürich, Zurich, Switzerland
| | - Devin Routh
- Department of Environmental Systems Science, Institute of Integrative Biology, ETH Zürich, Zurich, Switzerland
- Science IT, University of Zürich, Zurich, Switzerland
| | | | - Juha M Alatalo
- Environmental Science Center, Qatar University, Doha, Qatar
| | - Alla Aleksanyan
- Department of Geobotany and Plant Ecophysiology, Institute of Botany aft. A.L. Takhtajyan NAS of RA, Yerevan, Armenia
| | - Inge H J Althuizen
- Department of Biological Sciences and Bjerknes Centre for Climate Research, University of Bergen, Bergen, Norway
- NORCE Norwegian Research Centre AS, Bjerknes Centre for Climate Research, Bergen, Norway
| | | | - Jeff W Atkins
- USDA Forest Service, Southern Research Station, New Ellenton, South Carolina, USA
| | - Laurent Augusto
- INRAE, Bordeaux Sciences Agro, ISPA, Villenave d'Ornon, France
| | - Mika Aurela
- Finnish Meteorological Institute, Climate System Research, Helsinki, Finland
| | | | - Isabel C Barrio
- Faculty of Environmental and Forest Sciences, Agricultural University of Iceland, Reykjavík, Iceland
| | - Claus Beier
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
| | - María D Bejarano
- Department of Natural Systems and Resources, Universidad Politécnica de Madrid, Madrid, Spain
| | | | - Björn Berg
- Department of Forest Sciences, University of Helsinki, Helsinki, Finland
| | - Nadezhda V Bezler
- All-Russian Institute of Sugar and Sygar Beet Named after D. Mazlumov, Ramon, Russia
| | - Katrín Björnsdóttir
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Martin A Bolinder
- Department of Ecology, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
| | - Michele Carbognani
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Roberto Cazzolla Gatti
- Biological Institute, Tomsk State University, Tomsk, Russia
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Stefano Chelli
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, MC, Italy
| | - Maxim V Chistotin
- All-Russian Research Institute of Agrochemistry Named after D. Pryanishnikov, Moscow, Russia
| | - Casper T Christiansen
- Center for Permafrost (CENPERM), Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
- Terrestrial Ecology Section, Department of Biology, University of Copenhagen, Copenhagen Ø, Denmark
| | - Pascal Courtois
- UMR Silva, INRAE, AgroParisTech, Université de Lorraine, Nancy, France
| | - Thomas W Crowther
- Department of Environmental Systems Science, Institute of Integrative Biology, ETH Zürich, Zurich, Switzerland
| | - Michele S Dechoum
- Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Ika Djukic
- Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zurich, Switzerland
| | - Sarah Duddigan
- Department of Geography and Environmental Science, University of Reading, Reading, UK
| | | | - Nicolas Fanin
- INRAE, Bordeaux Sciences Agro, ISPA, Villenave d'Ornon, France
| | - Maria Fantappiè
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Rome, Italy
| | - Silvano Fares
- National Research Council of Italy Institute for Agriculture and Forestry Systems in the Mediterranean, Naples, Italy
| | - Geraldo W Fernandes
- Departamento de Genética, Ecologia & Evolução, ICB/Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
- Knowledge Center for Biodiversity, Belo Horizonte, MG, Brazil
| | | | | | | | - Roberto Godoy
- Instituto de Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, Valdivia, Chile
| | - Thomas Grünwald
- Institute of Hydrology and Meteorology, TUD Dresden University of Technology, Tharandt, Germany
| | - Gema Guzmán
- Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Camino de Purchil, Granada, Spain
- Institute for Sustainable Agriculture-CSIC, Cordoba, Spain
| | - Joseph E Hawes
- Applied Ecology Research Group, School of Life Sciences, Anglia Ruskin University, Cambridge, UK
- Earth Research Institute, University of California, Santa Barbara, California, USA
- Institute of Science and Environment, University of Cumbria, Ambleside, Cumbria, UK
| | - Yue He
- College of Urban and Environmental Sciences, Sino-French Institute for Earth System Science, Institute of Carbon Neutrality, Peking University, Beijing, China
- International Institute for Applied Systems Analysis (IIASA), Laxenburg, Austria
| | - Jean-Marc Hero
- School of Anthropology and Conservation, Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK
- School of Science, Technology and Engineering, The University of the Sunshine Coast, Maroochydore, Queensland, Australia
| | - Laura L Hess
- Earth Research Institute, University of California, Santa Barbara, California, USA
| | - Katja Hogendoorn
- School of Agriculture, Food and Wine, The University of Adelaide, Adelaide, South Australia, Australia
| | - Toke T Høye
- Department of Ecoscience and Arctic Research Centre, Aarhus University, Aarhus C, Denmark
| | - Wilma W P Jans
- Wageningen Environmental Research, Wageningen, The Netherlands
| | | | - Sabina Keller
- Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland
| | - Sebastian Kepfer-Rojas
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
| | | | - Klaus S Larsen
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
| | - Hjalmar Laudon
- Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Jonas J Lembrechts
- Research Group Plants and Ecosystems (PLECO), University of Antwerp, Wilrijk, Belgium
| | - Junhui Li
- Center for Ecosystem Science and Society, Northern Arizona University, Flagstaff, Arizona, USA
- Department of Earth System Science, University of California, Irvine, California, USA
| | | | - Sergey M Lukin
- Upper Volga Federal Agrarain Scientific Center, Vladimir, Russia
| | - Renato Marques
- Departamento de Solos e Engenharia Agrícola, Universidade Federal do Paraná, Curitiba, Brasil
| | - César Marín
- Centro de Investigación e Innovación para el Cambio Climático (CiiCC), Universidad Santo Tomás, Valdivia, Chile
| | | | - Qi Meek
- Department of Renewable Resources, Faculty of Agricultural, Life and Environmental Science, University of Alberta, Edmonton, Alberta, Canada
| | - Genrietta E Merzlaya
- All-Russian Research Institute of Agrochemistry Named after D. Pryanishnikov, Moscow, Russia
| | - Anders Michelsen
- Center for Permafrost (CENPERM), Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
- Department of Biology, University of Copenhagen, Copenhagen Ø, Denmark
| | - Leonardo Montagnani
- Forest Services, Autonomous Province of Bozen-Bolzano, Bolzano, Italy
- Libera Universita di Bolzano, Facoltà di Scienze e Tecnologie, Piazza Università, Bolzano, Italy
| | - Peter Mueller
- Smithsonian Environmental Research Center, Edgewater, Maryland, USA
- Institute of Plant Science and Microbiology, Universität Hamburg, Hamburg, Germany
| | - Rajasekaran Murugan
- Soil Biology and Plant Nutrition, Faculty of Organic Agricultural Sciences, University of Kassel, Witzenhausen, Germany
- Valli Sustainability Research and Education, Kanchipuram, Tamil Nadu, India
| | - Isla H Myers-Smith
- Department of Forest and Conservation Sciences, Faculty of Forestry, Forest Sciences Centre, University of British Columbia, Vancouver, British Columbia, Canada
- School of GeoSciences, University of Edinburgh, Edinburgh, Scotland, UK
| | - Stefanie Nolte
- School of Environmental Sciences, University of East Anglia, Norwich, UK
- Centre for Environment, Fisheries and Aquaculture Science, Lowestoft, UK
| | - Raúl Ochoa-Hueso
- Department of Biology, IVAGRO, University of Cádiz, Campus de Excelencia Internacional Agroalimentario (ceiA3), Cádiz, Spain
| | | | | | - Vladimir G Onipchenko
- Department of Ecology and Plant Geography, Biological Faculty, Lomonosov Moscow State University, Moscow, Russia
| | - María C Orozco
- Department of Biological Sciences, Universidad de los Andes, Bogotá, Colombia
| | - Tina Parkhurst
- School of Environmental and Conservation Sciences, Murdoch University, Murdoch, Western Australia, Australia
| | - Carlos A Peres
- School of Environmental Sciences, University of East Anglia, Norwich, UK
| | - Matteo Petit Bon
- Department of Arctic Biology, The University Centre in Svalbard, Longyearbyen, Svalbard, Norway
- Department of Arctic and Marine Biology, Faculty of Biosciences Fisheries and Economics, The Arctic University of Norway, Tromsø, Norway
- Department of Wildland Resources, Quinney College of Natural Resources and Ecology Center, Utah State University, Logan, Utah, USA
| | - Alessandro Petraglia
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Martin Pingel
- Department of Applied Ecology, Hochschule Geisenheim University, Geisenheim, Germany
| | - Corinna Rebmann
- Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany
| | - Brett R Scheffers
- Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, Florida, USA
| | - Inger Schmidt
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
| | - Mary C Scholes
- School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Efrat Sheffer
- Institute of Plant Science and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Lyudmila K Shevtsova
- All-Russian Research Institute of Agrochemistry Named after D. Pryanishnikov, Moscow, Russia
| | - Stuart W Smith
- Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
- Ecological Science Department, The James Hutton Institute, Aberdeen, UK
| | - Adriano Sofo
- Department of European and Mediterranean Cultures: Architecture, Environment, Cultural Heritage (DiCEM), University of Basilicata, Matera, Italy
| | | | - Barbora Strouhalová
- Departement of Physical Geography and Geoecology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Anders Sundsdal
- Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
- Faculty of Technology, Natural Sciences and Maritime Sciences, University of South-Eastern, Notodden, Norway
| | - Rafael B Sühs
- Programa de pós-graduacão em Ecologia, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Gebretsadik Tamene
- Department of Natural Resource Management, College of Agriculture and Environmental, University of Gondar, Gondar, Ethiopia
| | - Haydn J D Thomas
- School of Environmental Sciences, University of East Anglia, Norwich, UK
| | - Duygu Tolunay
- Ecology and Biodiversity Group, Institute of Environmental Biology, Utrecht University, Utrecht, The Netherlands
| | - Marcello Tomaselli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Simon Tresch
- Institute for Applied Plant Biology, Witterswil, Switzerland
| | - Dominique L Tucker
- Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- Center for Energy, Environment and Sustainability, Department of Biology, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Michael D Ulyshen
- USDA Forest Service, Southern Research Station, Athens, Georgia, USA
| | - Alejandro Valdecantos
- Department of Ecology, University of Alicante, Alicante, Spain
- Multidisciplinary Institute for Environmental Studies, Ramon Margalef, IMEM, University of Alicante, Alicante, Spain
| | - Vigdis Vandvik
- Department of Biological Sciences and Bjerknes Centre for Climate Research, University of Bergen, Bergen, Norway
| | | | - Kris Verheyen
- Department of Environment, Forest and Nature Lab, Gent University, Ghent, Belgium
| | - Xuhui Wang
- College of Urban and Environmental Sciences, Sino-French Institute for Earth System Science, Institute of Carbon Neutrality, Peking University, Beijing, China
| | - Laura Yahdjian
- Cátedra de Ecología, Facultad de Agronomía, UBA, Buenos Aires, Argentina
- Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA), Facultad de Agronomía, Universidad de Buenos Aires and CONICET, Buenos Aires, Argentina
| | | | - Joost A Keuskamp
- Ecology and Biodiversity Group, Institute of Environmental Biology, Utrecht University, Utrecht, The Netherlands
- Biont Research, Utrecht, The Netherlands
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Sarneel JM, Barel JM, Duddigan S, Keuskamp JA, Pastor A, Sandén T, Blume‐Werry G. Reasons to not correct for leaching in TBI; Reply to Lind et al. (2022). Ecol Evol 2023; 13:e10133. [PMID: 37325714 PMCID: PMC10262069 DOI: 10.1002/ece3.10133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 04/17/2023] [Accepted: 05/11/2023] [Indexed: 06/17/2023] Open
Abstract
We believe that correcting for leaching in (terrestrial) litterbags studies such as the Tea Bag Index will result in more uncertainties than it resolves. This is mainly because leaching occurs in pulses upon changes in the environment and because leached material can still be mineralized after leaching. Furthermore, amount of material that potentially leaches from tea is comparable to other litter types. When correcting for leaching, it is key to be specific about the employed method, just like being specific about the study specific definition of decomposition.
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Affiliation(s)
- Judith M. Sarneel
- Department of Ecology and Environmental ScienceUmeå UniversityUmeåSweden
| | - Janna M. Barel
- Aquatic Ecology & Environmental Biology, Faculty of Science, Radboud Institute for Biological and Environmental SciencesRadboud University NijmegenNijmegenThe Netherlands
| | - Sarah Duddigan
- Soil Research Centre and Department of Geography & Environmental ScienceUniversity of ReadingReadingUK
| | - Joost A. Keuskamp
- Ecology & Biodiversity Group, Institute of Environmental BiologyUtrecht UniversityUtrechtThe Netherlands
- Biont ResearchUtrechtThe Netherlands
| | - Ada Pastor
- GRECO, Institute of Aquatic EcologyUniversity of GironaGironaSpain
| | - Taru Sandén
- Department for Soil Health and Plant NutritionAustrian Agency for Health and Food Safety (AGES)ViennaAustria
| | - Gesche Blume‐Werry
- Department of Ecology and Environmental ScienceUmeå UniversityUmeåSweden
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3
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Zanne AE, Flores-Moreno H, Powell JR, Cornwell WK, Dalling JW, Austin AT, Classen AT, Eggleton P, Okada KI, Parr CL, Adair EC, Adu-Bredu S, Alam MA, Alvarez-Garzón C, Apgaua D, Aragón R, Ardon M, Arndt SK, Ashton LA, Barber NA, Beauchêne J, Berg MP, Beringer J, Boer MM, Bonet JA, Bunney K, Burkhardt TJ, Carvalho D, Castillo-Figueroa D, Cernusak LA, Cheesman AW, Cirne-Silva TM, Cleverly JR, Cornelissen JHC, Curran TJ, D'Angioli AM, Dallstream C, Eisenhauer N, Evouna Ondo F, Fajardo A, Fernandez RD, Ferrer A, Fontes MAL, Galatowitsch ML, González G, Gottschall F, Grace PR, Granda E, Griffiths HM, Guerra Lara M, Hasegawa M, Hefting MM, Hinko-Najera N, Hutley LB, Jones J, Kahl A, Karan M, Keuskamp JA, Lardner T, Liddell M, Macfarlane C, Macinnis-Ng C, Mariano RF, Méndez MS, Meyer WS, Mori AS, Moura AS, Northwood M, Ogaya R, Oliveira RS, Orgiazzi A, Pardo J, Peguero G, Penuelas J, Perez LI, Posada JM, Prada CM, Přívětivý T, Prober SM, Prunier J, Quansah GW, Resco de Dios V, Richter R, Robertson MP, Rocha LF, Rúa MA, Sarmiento C, Silberstein RP, Silva MC, Siqueira FF, Stillwagon MG, Stol J, Taylor MK, Teste FP, Tng DYP, Tucker D, Türke M, Ulyshen MD, Valverde-Barrantes OJ, van den Berg E, van Logtestijn RSP, Veen GFC, Vogel JG, Wardlaw TJ, Wiehl G, Wirth C, Woods MJ, Zalamea PC. Termite sensitivity to temperature affects global wood decay rates. Science 2022; 377:1440-1444. [PMID: 36137034 DOI: 10.1126/science.abo3856] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [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
Deadwood is a large global carbon store with its store size partially determined by biotic decay. Microbial wood decay rates are known to respond to changing temperature and precipitation. Termites are also important decomposers in the tropics but are less well studied. An understanding of their climate sensitivities is needed to estimate climate change effects on wood carbon pools. Using data from 133 sites spanning six continents, we found that termite wood discovery and consumption were highly sensitive to temperature (with decay increasing >6.8 times per 10°C increase in temperature)-even more so than microbes. Termite decay effects were greatest in tropical seasonal forests, tropical savannas, and subtropical deserts. With tropicalization (i.e., warming shifts to tropical climates), termite wood decay will likely increase as termites access more of Earth's surface.
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Affiliation(s)
- Amy E Zanne
- Department of Biology, University of Miami, Miami, FL, USA.,Department of Biological Sciences, George Washington University, Washington, DC, USA
| | - Habacuc Flores-Moreno
- Terrestrial Ecosystem Research Network, University of Queensland, St Lucia, QLD, Australia
| | - Jeff R Powell
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
| | - William K Cornwell
- School of Biological, Earth & Environmental Sciences, University of New South Wales, Sydney, NSW, Australia
| | - James W Dalling
- Department of Plant Biology, University of Illinois, Urbana-Champaign, Urbana, IL, USA.,Smithsonian Tropical Research Institute, Panama City, Panama
| | - Amy T Austin
- Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Aimée T Classen
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, USA
| | - Paul Eggleton
- The Soil Biodiversity Group, Entomology Department, The Natural History Museum, London, UK
| | - Kei-Ichi Okada
- Department of Northern Biosphere Agriculture, Tokyo University of Agriculture, Abashiri, Japan
| | - Catherine L Parr
- School of Environmental Sciences, University of Liverpool, Liverpool, UK.,Department of Zoology & Entomology, University of Pretoria, Pretoria, South Africa.,School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, Wits, South Africa
| | - E Carol Adair
- Rubenstein School of Environment and Natural Resources, University of Vermont, Burlington, VT, USA
| | - Stephen Adu-Bredu
- Biodiversity Conservation and Ecosystem Services Division, Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi Ashanti Region, Ghana.,Department of Natural Resources Management, CSIR College of Science and Technology, Kumasi Ashanti Region, Ghana
| | - Md Azharul Alam
- Department of Pest-management and Conservation, Lincoln University, Lincoln, New Zealand
| | - Carolina Alvarez-Garzón
- Departamento de Biología/Ecología/Laboratorio de Ecología Funcional y Ecosistémica, Universidad del Rosario, Bogotá DC, Colombia
| | - Deborah Apgaua
- Centre for Rainforest Studies, The School for Field Studies, Yungaburra, QLD, Australia
| | - Roxana Aragón
- Instituto de Ecología Regional, Universidad Nacional de Tucumán-CONICET, Tucumán, Argentina
| | - Marcelo Ardon
- Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC, USA
| | - Stefan K Arndt
- School of Ecosystem and Forest Sciences, The University of Melbourne, Melbourne, VIC, Australia
| | - Louise A Ashton
- School of Biological Sciences, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Nicholas A Barber
- Department of Biological Sciences, Northern Illinois University, DeKalb, IL, USA
| | - Jacques Beauchêne
- UMR Ecologie des Forêts de Guyane (EcoFoG), AgroParisTech, CNRS, INRA, Universite des Antilles, Universite de Guyane, CIRAD, Kourou, France
| | - Matty P Berg
- Department of Ecology and Evolution, Amsterdam Institute of Life and Environment, Vrije Universiteit, Amsterdam, Netherlands.,Community and Conservation Ecology, Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, Netherlands
| | - Jason Beringer
- School of Agriculture and Environment, The University of Western Australia, Perth, WA, Australia
| | - Matthias M Boer
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
| | | | - Katherine Bunney
- Department of Zoology & Entomology, University of Pretoria, Pretoria, South Africa
| | - Tynan J Burkhardt
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Dulcinéia Carvalho
- Departamento de Ciências Florestais, Universidade Federal de Lavras, Lavras, MG, Brazil
| | - Dennis Castillo-Figueroa
- Biology Department/Faculty of Natural Sciences, Universidad del Rosario, Bogotá, Colombia.,Biology Department/Faculty of Natural Sciences/Functional and Ecosystem Ecology Lab, Universidad del Rosario, Bogotá, Colombia
| | - Lucas A Cernusak
- College of Science and Engineering, James Cook University, Cairns, QLD, Australia
| | - Alexander W Cheesman
- College of Science and Engineering, James Cook University, Cairns, QLD, Australia
| | - Tainá M Cirne-Silva
- Departamento de Ciências Florestais, Universidade Federal de Lavras, Lavras, MG, Brazil
| | - Jamie R Cleverly
- College of Science and Engineering, James Cook University, Cairns, QLD, Australia
| | - Johannes H C Cornelissen
- Amsterdam Institute for Life and Environment (A-LIFE), Systems Ecology Section, Vrije Universiteit, Amsterdam, Netherlands
| | - Timothy J Curran
- Department of Pest-management and Conservation, Lincoln University, Lincoln, New Zealand
| | - André M D'Angioli
- Programa de pós-graduação em Ecologia, Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | | | - Nico Eisenhauer
- Experimental Interaction Ecology, German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany.,Institute of Biology, Leipzig University, Leipzig, Germany
| | | | - Alex Fajardo
- Instituto de Investigación Interdisciplinaria (I3), Vicerrectoría Académica, Universidad de Talca, Talca, Chile
| | - Romina D Fernandez
- Instituto de Ecología Regional, Universidad Nacional de Tucumán-CONICET, Tucumán, Argentina
| | - Astrid Ferrer
- Department of Plant Biology, University of Illinois, Urbana-Champaign, Urbana, IL, USA
| | - Marco A L Fontes
- Departamento de Ciências Florestais, Universidade Federal de Lavras, Lavras, MG, Brazil
| | | | - Grizelle González
- International Institute of Tropical Forestry, USDA Forest Service, Río Piedras, PR, USA
| | - Felix Gottschall
- German Centre for Integrative Biodiversity Research, Leipzig, Germany
| | - Peter R Grace
- School of Biology and Environmental Science, Queensland University of Technology, Brisbane, QLD, Australia
| | - Elena Granda
- Departamento de Ciencias de la Vida, Universidad de Alcalá, Alcalá de Henares, Spain
| | - Hannah M Griffiths
- School of Environmental Sciences, University of Liverpool, Liverpool, UK
| | - Mariana Guerra Lara
- Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Motohiro Hasegawa
- Department of Environmental System Science/Faculty of Science and Engineering, Doshisha University, Kyotanabe, Japan
| | - Mariet M Hefting
- Department of Biology/Faculty of Science/Ecology and Biodiversity, Utrecht University, Utrecht, Netherlands
| | - Nina Hinko-Najera
- Faculty of Science/School of Ecosystem and Forest Sciences, The University of Melbourne, Creswick, VIC, Australia
| | - Lindsay B Hutley
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT, Australia
| | - Jennifer Jones
- Department of Plant Biology, University of Illinois, Urbana-Champaign, Urbana, IL, USA
| | - Anja Kahl
- Systematic Botany and Functional Biodiversity, Leipzig University, Leipzig, Germany
| | - Mirko Karan
- College of Science and Engineering, James Cook University, Cairns, QLD, Australia.,Ecosystem Processes, TERN (Australian Terrestrial Ecosystem Research Network), Cairns, QLD, Australia
| | - Joost A Keuskamp
- Biont Research, Utrecht, Netherlands.,Ecology and Biodiversity, Institute of Environmental Biology, Department of Biology, Science Faculty, Utrecht University, Utrecht, Netherlands
| | - Tim Lardner
- School of Agriculture and Environment, The University of Western Australia, Perth, WA, Australia
| | - Michael Liddell
- College of Science and Engineering, James Cook University, Cairns, QLD, Australia
| | | | - Cate Macinnis-Ng
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Ravi F Mariano
- Departamento de Ciências Florestais, Universidade Federal de Lavras, Lavras, MG, Brazil
| | - M Soledad Méndez
- Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Wayne S Meyer
- School of Biological Sciences, Terrestrial Ecosystem Research Network, University of Adelaide, Adelaide, SA, Australia
| | - Akira S Mori
- Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Aloysio S Moura
- Departamento de Ciências Florestais, Universidade Federal de Lavras, Lavras, MG, Brazil
| | - Matthew Northwood
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT, Australia
| | - Romà Ogaya
- Global Ecology Unit, CREAF-CSIC, Barcelona, Spain
| | - Rafael S Oliveira
- Department of Plant Biology, Institute of Biology, University of Campinas, Campinas, SP, Brazil
| | | | - Juliana Pardo
- Department of Biology, Université de Montréal, Montréal, Quebec, Canadá
| | - Guille Peguero
- Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Josep Penuelas
- Global Ecology Unit, CSIC, Bellaterra Barcelona, Spain.,Global Ecology Unit, CREAF, Cerdanyola del Valles Barcelona, Spain
| | - Luis I Perez
- Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Juan M Posada
- Biology Department/Functional and Ecosystem Ecology Lab, Universidad del Rosario, Bogota DC, Colombia
| | - Cecilia M Prada
- Department of Plant Biology, University of Illinois, Urbana-Champaign, Urbana, IL, USA
| | - Tomáš Přívětivý
- Department of Forest Ecology, Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Brno, Czechia
| | - Suzanne M Prober
- Land and Water, CSIRO, Wembley, WA, Australia.,School of Biological Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Jonathan Prunier
- UMR ECOFOG/Laboratoire des Sciences du Bois, CNRS, Kourou GF, France
| | - Gabriel W Quansah
- Soil Analytical Services, Soil Testing Laboratory, CSIR-Soil Research Institute, Kumasi Ashanti Region, Ghana
| | - Víctor Resco de Dios
- Department of Crop and Forest Sciences, University of Lleida, Lérida, Spain.,School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang, China
| | - Ronny Richter
- Systematic Botany and Functional Biodiversity, Leipzig University, Leipzig, Germany.,German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena- Leipzig, Leipzig, Germany.,Geoinformatics and Remote Sensing, Leipzig University, Leipzig, Germany
| | - Mark P Robertson
- Department of Zoology & Entomology, University of Pretoria, Pretoria, South Africa
| | - Lucas F Rocha
- Departamento de Ciências Florestais, Universidade Federal de Lavras, Lavras, MG, Brazil
| | - Megan A Rúa
- Department of Biological Sciences, Wright State University, Dayton, OH, USA
| | - Carolina Sarmiento
- Smithsonian Tropical Research Institute, Panama City, Panama.,Department of Integrative Biology, University of South Florida, Tampa, FL, USA
| | - Richard P Silberstein
- School of Science, Edith Cowan University, Joondalup, WA, Australia.,Agriculture and Environment, The University of Western Australia, Nedlands, WA, Australia
| | - Mateus C Silva
- Departamento de Ecologia e Conservação, Universidade Federal de Lavras, Lavras, MG, Brazil
| | | | - Matthew Glenn Stillwagon
- Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC, USA
| | - Jacqui Stol
- Land and Water, CSIRO, Canberra, ACT, Australia
| | - Melanie K Taylor
- Southern Research Station, USDA Forest Service, Athens, GA, USA.,Odum School of Ecology, University of Georgia, Athens, GA, USA
| | - François P Teste
- Instituto de Matemática Aplicada de San Luis (IMASL), CONICET, Universidad Nacional de San Luis, San Luis, Argentina
| | - David Y P Tng
- Centre for Rainforest Studies, The School for Field Studies, Yungaburra, QLD, Australia
| | - David Tucker
- School of Biology and Environmental Science, Queensland University of Technology, Brisbane, QLD, Australia
| | - Manfred Türke
- Experimental Interaction Ecology, German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany.,Institute of Biology, Leipzig University, Leipzig, Germany
| | | | - Oscar J Valverde-Barrantes
- Department of Biological Sciences, International Center of Tropical Biodiversity, Institute of Environment, Florida International University, Miami, FL, USA
| | - Eduardo van den Berg
- Departamento de Ecologia e Conservação, Universidade Federal de Lavras, Lavras, MG, Brazil
| | | | - G F Ciska Veen
- Department of Terrestrial Ecology, NIOO-KNAW, Wageningen, Netherlands
| | - Jason G Vogel
- School of Forest, Fisheries, and Geomatics Sciences, University of Florida, Gainesville, FL, USA
| | - Timothy J Wardlaw
- School of Natural Sciences, University of Tasmania, Hobart, TAS, Australia
| | - Georg Wiehl
- Land and Water, CSIRO, Wembley, WA, Australia
| | - Christian Wirth
- Systematic Botany and Functional Biodiversity, Leipzig University, Leipzig, Germany.,German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena- Leipzig, Leipzig, Germany
| | - Michaela J Woods
- Department of Biological Sciences, Wright State University, Dayton, OH, USA
| | - Paul-Camilo Zalamea
- Smithsonian Tropical Research Institute, Panama City, Panama.,Department of Integrative Biology, University of South Florida, Tampa, FL, USA
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4
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Whigham DF, Walker CM, Maurer J, King RS, Hauser W, Baird S, Keuskamp JA, Neale PJ. Watershed influences on the structure and function of riparian wetlands associated with headwater streams - Kenai Peninsula, Alaska. Sci Total Environ 2017; 599-600:124-134. [PMID: 28475906 DOI: 10.1016/j.scitotenv.2017.03.290] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 03/30/2017] [Accepted: 03/31/2017] [Indexed: 06/07/2023]
Abstract
Riparian wetlands are dynamic components of landscapes. Located between uplands and aquatic environments, riparian habitats intercept sediments and nutrients before they enter aquatic environments. They are a source of organic matter and nutrients to aquatic systems, and they provide important habitat for animals, often serving as corridors for the movement of animals between habitats in fragmented landscapes. In this project, we focused on the structure and function of riparian wetlands associated with headwater streams in Alaska that serve as nursery habitats for juvenile salmonids. We asked whether or not the structure and function of headwater wetlands differed between watersheds with and without nitrogen-fixing Alder (Alnus spp.). We found that the aboveground biomass of riparian vegetation was higher in the watershed with Alder, but the largest differences were in the litter layer and belowground where vegetation in the watershed with no Alder had significantly higher root biomass. Interstitial water chemistry also differed between the study sites with significantly higher inorganic N and significantly different characteristics of colored dissolved organic matter at the site with Alder on the watershed. The biomass of litter that hung over the creek bank was less at the site with Alder on the watershed and an in situ decomposition experiment showed significant differences between the two systems. Results of the research demonstrates that watershed characteristics can impact the ecology of headwater streams in ways that had not been previously recognized.
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Affiliation(s)
- D F Whigham
- Smithsonian Environmental Research Center, 647 Contees Wharf Road, Edgewater, MD 21037, USA.
| | - C M Walker
- Kachemak Bay National Estuarine Research Reserve, University of Alaska, 2181 Kachemak Drive, Homer, AK 99603, USA.
| | - J Maurer
- Kachemak Bay National Estuarine Research Reserve, University of Alaska, 2181 Kachemak Drive, Homer, AK 99603, USA.
| | - R S King
- Baylor University, Department of Biology, One Bear Place #97388, Waco, TX 76798, USA.
| | - W Hauser
- Smithsonian Environmental Research Center, 647 Contees Wharf Road, Edgewater, MD 21037, USA; Wabash College, Biology Department, Crawfordsville, IN 47933, USA.
| | - S Baird
- Kachemak Bay National Estuarine Research Reserve, University of Alaska, 2181 Kachemak Drive, Homer, AK 99603, USA.
| | - J A Keuskamp
- Netherlands Institute of Ecology (NIOO-KNAW), P.O. Box 59, 6700 AB Wageningen, The Netherlands; Ecology & Biodiversity Group, Department of Biology, Utrecht University, P.O. Box 80.056, 3508 TB Utrecht, The Netherlands.
| | - P J Neale
- Smithsonian Environmental Research Center, 647 Contees Wharf Road, Edgewater, MD 21037, USA.
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5
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Balk M, Keuskamp JA, Laanbroek HJ. Potential for Sulfate Reduction in Mangrove Forest Soils: Comparison between Two Dominant Species of the Americas. Front Microbiol 2016; 7:1855. [PMID: 27917167 PMCID: PMC5114281 DOI: 10.3389/fmicb.2016.01855] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 11/03/2016] [Indexed: 12/05/2022] Open
Abstract
Avicennia and Rhizophora are globally occurring mangrove genera with different traits that place them in different parts of the intertidal zone. It is generally accepted that the oxidizing capacity of Avicennia roots is larger than that of Rhizophora roots, which initiates more reduced conditions in the soil below the latter genus. We hypothesize that the more reduced conditions beneath Rhizophora stands lead to more active sulfate-reducing microbial communities compared to Avicennia stands. To test this hypothesis, we measured sulfate reduction traits in soil samples collected from neighboring Avicennia germinans and Rhizophora mangle stands at three different locations in southern Florida. The traits measured were sulfate reduction rates (SRR) in flow-through reactors containing undisturbed soil layers in the absence and presence of easily degradable carbon compounds, copy numbers of the dsrB gene, which is specific for sulfate-reducing microorganisms, and numbers of sulfate-reducing cells that are able to grow in liquid medium on a mixture of acetate, propionate and lactate as electron donors. At the tidal locations Port of the Islands and South Hutchinson Islands, steady state SRR, dsrB gene copy numbers and numbers of culturable cells were higher at the A. germinans than at the R. mangle stands, although not significantly for the numbers at Port of the Islands. At the non-tidal location North Hutchinson Island, results are mixed with respect to these sulfate reduction traits. At all locations, the fraction of culturable cells were significantly higher at the R. mangle than at the A. germinans stands. The dynamics of the initial SRR implied a more in situ active sulfate-reducing community at the intertidal R. mangle stands. It was concluded that in agreement with our hypothesis R. mangle stands accommodate a more active sulfate-reducing community than A. germinans stands, but only at the tidal locations. The differences between R. mangle and A. germinans stands were absent at the non-tidal, impounded location.
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Affiliation(s)
- Melike Balk
- Department of Microbial Ecology, Netherlands Institute of Ecology-Royal Netherlands Academy of Arts and SciencesWageningen, Netherlands; Faculty of Geosciences, Utrecht UniversityUtrecht, Netherlands
| | - Joost A Keuskamp
- Department of Microbial Ecology, Netherlands Institute of Ecology-Royal Netherlands Academy of Arts and SciencesWageningen, Netherlands; Ecology and Biodiversity Group, Department of Biology, Utrecht UniversityUtrecht, Netherlands
| | - Hendrikus J Laanbroek
- Department of Microbial Ecology, Netherlands Institute of Ecology-Royal Netherlands Academy of Arts and SciencesWageningen, Netherlands; Ecology and Biodiversity Group, Department of Biology, Utrecht UniversityUtrecht, Netherlands
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6
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Balk M, Keuskamp JA, Laanbroek HJ. Potential Activity, Size, and Structure of Sulfate-Reducing Microbial Communities in an Exposed, Grazed and a Sheltered, Non-Grazed Mangrove Stand at the Red Sea Coast. Front Microbiol 2016; 6:1478. [PMID: 26733999 PMCID: PMC4686736 DOI: 10.3389/fmicb.2015.01478] [Citation(s) in RCA: 7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 12/08/2015] [Indexed: 12/02/2022] Open
Abstract
After oxygen, sulfate is the most important oxidant for the oxidation of organic matter in mangrove forest soils. As sulfate reducers are poor competitors for common electron donors, their relative success depends mostly on the surplus of carbon that is left by aerobic organisms due to oxygen depletion. We therefore hypothesized that sulfate-cycling in mangrove soils is influenced by the size of net primary production, and hence negatively affected by mangrove degradation and exploitation, as well as by carbon-exporting waves. To test this, we compared quantitative and qualitative traits of sulfate-reducing communities in two Saudi-Arabian mangrove stands near Jeddah, where co-occurring differences in camel-grazing pressure and tidal exposure led to a markedly different stand height and hence primary production. Potential sulfate reduction rates measured in anoxic flow-through reactors in the absence and presence of additional carbon sources were significantly higher in the samples from the non-grazed site. Near the surface (0–2 cm depth), numbers of dsrB gene copies and culturable cells also tended to be higher in the non-grazed sites, while these differences were not detected in the sub-surface (4–6 cm depth). It was concluded that sulfate-reducing microbes at the surface were indeed repressed at the low-productive site as could be expected from our hypothesis. At both sites, sulfate reduction rates as well as numbers of the dsrB gene copies and viable cells increased with depth suggesting repression of sulfate reduction near the surface in both irrespective of production level. Additionally, sequence analysis of DNA bands obtained from DGGE gels based on the dsrB gene, showed a clear difference in dominance of sulfate-reducing genera belonging to the Deltaproteobacteria and the Firmicutes between sampling sites and depths.
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Affiliation(s)
- Melike Balk
- Department of Microbial Ecology, Netherlands Institute of EcologyWageningen, Netherlands; Faculty of Geosciences, Utrecht UniversityUtrecht, Netherlands
| | - Joost A Keuskamp
- Department of Microbial Ecology, Netherlands Institute of EcologyWageningen, Netherlands; Ecology and Biodiversity, Department of Biology, Utrecht UniversityUtrecht, Netherlands
| | - Hendrikus J Laanbroek
- Department of Microbial Ecology, Netherlands Institute of EcologyWageningen, Netherlands; Ecology and Biodiversity, Department of Biology, Utrecht UniversityUtrecht, Netherlands
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7
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Balk M, Laverman AM, Keuskamp JA, Laanbroek HJ. Nitrate ammonification in mangrove soils: a hidden source of nitrite? Front Microbiol 2015; 6:166. [PMID: 25784903 PMCID: PMC4345912 DOI: 10.3389/fmicb.2015.00166] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 02/12/2015] [Indexed: 11/13/2022] Open
Abstract
Nitrate reduction is considered to be a minor microbial pathway in the oxidation of mangrove-derived organic matter due to a limited supply of nitrate in mangrove soils. At a limited availability of this electron acceptor compared to the supply of degradable carbon, nitrate ammonification is thought to be the preferential pathway of nitrate reduction. Mangrove forest mutually differ in their productivity, which may lead to different available carbon to nitrate ratios in their soil. Hence, nitrate ammonification is expected to be of more importance in high- compared to low-productive forests. The hypothesis was tested in flow-through reactors that contain undisturbed mangrove soils from high-productive Avicennia germinans and Rhizophora mangle forests in Florida and low-productive Avicennia marina forests in Saudi Arabia. Nitrate was undetectable in the soils from both regions. It was assumed that a legacy of nitrate ammonification would be reflected by a higher ammonium production from these soils upon the addition of nitrate. Unexpectedly, the soils from the low-productive forests in Saudi Arabia produced considerably more ammonium than the soils from the high-productive forests in Florida. Hence, other environmental factors than productivity must govern the selection of nitrate ammonification or denitrification. A rather intriguing observation was the 1:1 production of nitrite and ammonium during the consumption of nitrate, more or less independent from sampling region, location, sampling depth, mangrove species and from the absence or presence of additional degradable carbon. This 1:1 ratio points to a coupled production of ammonium and nitrite by one group of nitrate-reducing microorganisms. Such a production of nitrite will be hidden by the presence of active nitrite-reducing microorganisms under the nitrate-limited conditions of most mangrove forest soils.
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Affiliation(s)
- Melike Balk
- Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW) Netherlands ; Faculty of Geosciences, Utrecht University Utrecht, Netherlands
| | | | - Joost A Keuskamp
- Ecology and Biodiversity Group, Institute of Environmental Biology, Utrecht University Utrecht, Netherlands
| | - Hendrikus J Laanbroek
- Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW) Netherlands ; Ecology and Biodiversity Group, Institute of Environmental Biology, Utrecht University Utrecht, Netherlands
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8
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Keuskamp JA, Hefting MM, Dingemans BJJ, Verhoeven JTA, Feller IC. Effects of nutrient enrichment on mangrove leaf litter decomposition. Sci Total Environ 2015; 508:402-410. [PMID: 25497680 DOI: 10.1016/j.scitotenv.2014.11.092] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 11/01/2014] [Accepted: 11/27/2014] [Indexed: 06/04/2023]
Abstract
Nutrient enrichment of mangroves, a common phenomenon along densely populated coastlines, may negatively affect mangrove ecosystems by modifying internal carbon and nutrient cycling. The decomposition of litter exerts a strong influence on these processes and is potentially modified by eutrophication. This study describes effects of N and P enrichment on litter decomposition rate and mineralisation/immobilisation patterns. By making use of reciprocal litter transplantation experiments among fertiliser treatments, it was tested if nutrient addition primarily acts on the primary producers (i.e. changes in litter quantity and quality) or on the microbial decomposers (i.e. changes in nutrient limitation for decomposition). Measurements were done in two mangrove forests where primary production was either limited by N or by P, which had been subject to at least 5 years of experimental N and P fertilisation. Results of this study indicated that decomposers were always N-limited regardless of the limitation of the primary producers. This leads to a differential nutrient limitation between decomposers and primary producers in sites where mangrove production was P-limited. In these sites, fertilisation with P caused litter quality to change, resulting in a higher decomposition rate. This study shows that direct effects of fertilisation on decomposition through an effect on decomposer nutrient availability might be non-significant, while the indirect effects through modifying litter quality might be quite substantial in mangroves. Our results show no indication that eutrophication increases decomposition without stimulating primary production. Therefore we do not expect a decline in carbon sequestration as a result of eutrophication of mangrove ecosystems.
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Affiliation(s)
- Joost A Keuskamp
- Ecology and Biodiversity, Department of Biology, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands.
| | - Mariet M Hefting
- Ecology and Biodiversity, Department of Biology, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands.
| | - Bas J J Dingemans
- Ecology and Biodiversity, Department of Biology, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands.
| | - Jos T A Verhoeven
- Ecology and Biodiversity, Department of Biology, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands.
| | - Ilka C Feller
- Smithsonian Environmental Research Center, Edgewater, MD 21037, USA.
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9
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Keuskamp JA, Dingemans BJJ, Lehtinen T, Sarneel JM, Hefting MM. Tea Bag Index: a novel approach to collect uniform decomposition data across ecosystems. Methods Ecol Evol 2013. [DOI: 10.1111/2041-210x.12097] [Citation(s) in RCA: 260] [Impact Index Per Article: 23.6] [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)
- Joost A. Keuskamp
- Ecology and Biodiversity; Utrecht University; P.O. Box 80.084 NL-3508 TB Utrecht The Netherlands
| | - Bas J. J. Dingemans
- Ecology and Biodiversity; Utrecht University; P.O. Box 80.084 NL-3508 TB Utrecht The Netherlands
| | - Taru Lehtinen
- Life and Environmental Sciences; University of Iceland; Sturlugata 7 IS-101 Reykjavik Iceland
- Forest and Soil Sciences; University of Natural Resources and Life Sciences (BOKU); Peter Jordan Strasse 82a AT-1190 Vienna Austria
| | - Judith M. Sarneel
- Aquatic Ecology; Netherlands Institute of Ecology (NIOO-KNAW); P.O. Box 50 NL-6700 AB Wageningen The Netherlands
- Ecology & Environmental Science; Umeå Universitet; SE-901 87 Umeå
| | - Mariet M. Hefting
- Ecology and Biodiversity; Utrecht University; P.O. Box 80.084 NL-3508 TB Utrecht The Netherlands
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10
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Keuskamp JA, van Drecht G, Bouwman AF. European-scale modelling of groundwater denitrification and associated N₂O production. Environ Pollut 2012; 165:67-76. [PMID: 22406843 DOI: 10.1016/j.envpol.2012.02.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Revised: 02/06/2012] [Accepted: 02/10/2012] [Indexed: 05/31/2023]
Abstract
This paper presents a spatially explicit model for simulating the fate of nitrogen (N) in soil and groundwater and nitrous oxide (N(2)O) production in groundwater with a 1 km resolution at the European scale. The results show large heterogeneity of nitrate outflow from groundwater to surface water and production of N(2)O. This heterogeneity is the result of variability in agricultural and hydrological systems. Large parts of Europe have no groundwater aquifers and short travel times from soil to surface water. In these regions no groundwater denitrification and N(2)O production is expected. Predicted N leaching (16% of the N inputs) and N(2)O emissions (0.014% of N leaching) are much less than the IPCC default leaching rate and combined emission factor for groundwater and riparian zones, respectively.
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Affiliation(s)
- J A Keuskamp
- Ecology & Biodiversity, Department of Biology, Utrecht University, P.O. Box 800.84, 3508 TB Utrecht, The Netherlands
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