Volume 24, Issue 11 p. 1314-1328
Research Papers

Diversity enhances carbon storage in tropical forests

L. Poorter

Corresponding Author

L. Poorter

Forest Ecology and Forest Management Group, Wageningen University, PO Box 47, 6700 AA Wageningen, The Netherlands

Correspondence: Lourens Poorter, Forest Ecology and Forest Management Group, Wageningen University, PO Box 47, Wageningen 6700 AA, The Netherlands.

E-mail: [email protected]

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M. T. van der Sande

M. T. van der Sande

Forest Ecology and Forest Management Group, Wageningen University, PO Box 47, 6700 AA Wageningen, The Netherlands

Alterra, Wageningen UR, Wageningen, The Netherlands

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J. Thompson

J. Thompson

Centre for Ecology & Hydrology, Penicuik, UK

Department of Environmental Science, University of Puerto Rico, Río Piedras, Puerto Rico

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E. J. M. M. Arets

E. J. M. M. Arets

Alterra, Wageningen UR, Wageningen, The Netherlands

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A. Alarcón

A. Alarcón

Instituto Boliviano de Investigación Forestal (IBIF), FCA-UAGRM, Santa Cruz de la Sierra, Bolivia

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J. Álvarez-Sánchez

J. Álvarez-Sánchez

Facultad de Ciencias, Universidad Nacional Autónoma de México, México DF, México

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N. Ascarrunz

N. Ascarrunz

Instituto Boliviano de Investigación Forestal (IBIF), FCA-UAGRM, Santa Cruz de la Sierra, Bolivia

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P. Balvanera

P. Balvanera

Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, México

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G. Barajas-Guzmán

G. Barajas-Guzmán

Facultad de Ciencias, Universidad Nacional Autónoma de México, México DF, México

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A. Boit

A. Boit

Potsdam Institute for Climate Impact Research e.V. (PIK), Potsdam, Germany and Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), 14195 Berlin, Germany

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F. Bongers

F. Bongers

Forest Ecology and Forest Management Group, Wageningen University, PO Box 47, 6700 AA Wageningen, The Netherlands

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F. A. Carvalho

F. A. Carvalho

Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil

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F. Casanoves

F. Casanoves

Biostatistics Unit, CATIE, Turrialba, Costa Rica

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G. Cornejo-Tenorio

G. Cornejo-Tenorio

Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, México

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F. R. C. Costa

F. R. C. Costa

Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil

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C. V. de Castilho

C. V. de Castilho

Embrapa Roraima, Boa Vista, Brazil

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J. F. Duivenvoorden

J. F. Duivenvoorden

IBED, University of Amsterdam, Amsterdam, The Netherlands

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L. P. Dutrieux

L. P. Dutrieux

Lab of GIS and Remote-Sensing, Wageningen University, Wageningen, The Netherlands

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B. J. Enquist

B. J. Enquist

Department of Ecology and Evolutionary Biology, University of Arizona, P.O. Box 210088, Tucson, AZ, 85721 USA

The Santa Fe Institute, 1399 Hyde Park Rd, Santa Fe, NM, 87501 USA

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F. Fernández-Méndez

F. Fernández-Méndez

Grupo de Investigación en Biodiversidad y Dinámica de Ecosistemas Tropicales, Universidad del Tolima, Ibagué, Colombia

Laboratory of Ecology and Evolution of Plant, Universidade Federal de Viçosa, Brazil

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B. Finegan

B. Finegan

Production and Conservation in Forests Programme, CATIE, Turrialba, Costa Rica

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L. H. L. Gormley

L. H. L. Gormley

School of Environment, Natural Resources and Geography, Bangor University, Bangor, UK

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J. R. Healey

J. R. Healey

School of Environment, Natural Resources and Geography, Bangor University, Bangor, UK

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M. R. Hoosbeek

M. R. Hoosbeek

Department of Soil Quality, Wageningen University, Wageningen, The Netherlands

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G. Ibarra-Manríquez

G. Ibarra-Manríquez

Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, México

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A. B. Junqueira

A. B. Junqueira

Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil

Centre for Crop Systems Analysis, Wageningen University, Wageningen, The Netherlands

Knowledge, Technology and Innovation Group, Wageningen University, Wageningen, The Netherlands

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C. Levis

C. Levis

Forest Ecology and Forest Management Group, Wageningen University, PO Box 47, 6700 AA Wageningen, The Netherlands

Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil

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J. C. Licona

J. C. Licona

Instituto Boliviano de Investigación Forestal (IBIF), FCA-UAGRM, Santa Cruz de la Sierra, Bolivia

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L. S. Lisboa

L. S. Lisboa

ESALQ, USP, Piracicaba, Brazil

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W. E. Magnusson

W. E. Magnusson

Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil

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M. Martínez-Ramos

M. Martínez-Ramos

Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, México

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A. Martínez-Yrizar

A. Martínez-Yrizar

Instituto de Ecología, UNAM, Hermosillo, Mexico

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L. G. Martorano

L. G. Martorano

Embrapa Amazônia Oriental, Belém, Brazil

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L. C. Maskell

L. C. Maskell

Centre for Ecology and Hydrology (CEH), Lancaster, UK

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L. Mazzei

L. Mazzei

Embrapa Amazônia Oriental, Belém, Brazil

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J. A. Meave

J. A. Meave

Facultad de Ciencias, Universidad Nacional Autónoma de México, México DF, México

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F. Mora

F. Mora

Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, México

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R. Muñoz

R. Muñoz

Facultad de Ciencias, Universidad Nacional Autónoma de México, México DF, México

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C. Nytch

C. Nytch

Department of Environmental Science, University of Puerto Rico, Río Piedras, Puerto Rico

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M. P. Pansonato

M. P. Pansonato

Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil

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T. W. Parr

T. W. Parr

Centre for Ecology and Hydrology (CEH), Lancaster, UK

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H. Paz

H. Paz

Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, México

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E. A. Pérez-García

E. A. Pérez-García

Facultad de Ciencias, Universidad Nacional Autónoma de México, México DF, México

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L. Y. Rentería

L. Y. Rentería

Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, México

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J. Rodríguez-Velazquez

J. Rodríguez-Velazquez

Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, México

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D. M. A. Rozendaal

D. M. A. Rozendaal

Forest Ecology and Forest Management Group, Wageningen University, PO Box 47, 6700 AA Wageningen, The Netherlands

Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, USA

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A. R. Ruschel

A. R. Ruschel

Embrapa Amazônia Oriental, Belém, Brazil

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B. Sakschewski

B. Sakschewski

Potsdam Institute for Climate Impact Research e.V. (PIK), Potsdam, Germany and Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), 14195 Berlin, Germany

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B. Salgado-Negret

B. Salgado-Negret

Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogotá, Colombia

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J. Schietti

J. Schietti

Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil

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M. Simões

M. Simões

Embrapa Solos, Rio de Janeiro, Brazil

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F. L. Sinclair

F. L. Sinclair

School of Environment, Natural Resources and Geography, Bangor University, Bangor, UK

World Agroforestry Centre (ICRAF), Nairobi, Kenya

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P. F. Souza

P. F. Souza

Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil

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F. C. Souza

F. C. Souza

Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil

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J. Stropp

J. Stropp

Institute of Biological and Health Sciences, Federal University of Alagoas, Maceió, Brazil

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H. ter Steege

H. ter Steege

Naturalis Biodiversity Center, Leiden, Netherlands

Ecology and Biodiversity Group, Utrecht University, Utrecht, The Netherlands

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N. G. Swenson

N. G. Swenson

Department of Biology, University of Maryland, College Park, Maryland, 20742 USA

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K. Thonicke

K. Thonicke

Potsdam Institute for Climate Impact Research e.V. (PIK), Potsdam, Germany and Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), 14195 Berlin, Germany

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M. Toledo

M. Toledo

Instituto Boliviano de Investigación Forestal (IBIF), FCA-UAGRM, Santa Cruz de la Sierra, Bolivia

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M. Uriarte

M. Uriarte

Department of Ecology, Evolution and Environmental Biology, Columbia University, New York, USA

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P. van der Hout

P. van der Hout

Van der Hout Forestry Consulting, Rotterdam, The Netherlands

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P. Walker

P. Walker

Wildtracks, PO Box 278, Belize City, Belize

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N. Zamora

N. Zamora

Instituto Nacional de Biodiversidad (INBio), Santo Domingo, Costa Rica

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M. Peña-Claros

M. Peña-Claros

Forest Ecology and Forest Management Group, Wageningen University, PO Box 47, 6700 AA Wageningen, The Netherlands

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First published: 08 September 2015
Citations: 354
Editor: Thomas Hickler

Abstract

Aim

Tropical forests store 25% of global carbon and harbour 96% of the world's tree species, but it is not clear whether this high biodiversity matters for carbon storage. Few studies have teased apart the relative importance of forest attributes and environmental drivers for ecosystem functioning, and no such study exists for the tropics.

Location

Neotropics.

Methods

We relate aboveground biomass (AGB) to forest attributes (diversity and structure) and environmental drivers (annual rainfall and soil fertility) using data from 144,000 trees, 2050 forest plots and 59 forest sites. The sites span the complete latitudinal and climatic gradients in the lowland Neotropics, with rainfall ranging from 750 to 4350 mm year−1. Relationships were analysed within forest sites at scales of 0.1 and 1 ha and across forest sites along large-scale environmental gradients. We used a structural equation model to test the hypothesis that species richness, forest structural attributes and environmental drivers have independent, positive effects on AGB.

Results

Across sites, AGB was most strongly driven by rainfall, followed by average tree stem diameter and rarefied species richness, which all had positive effects on AGB. Our indicator of soil fertility (cation exchange capacity) had a negligible effect on AGB, perhaps because we used a global soil database. Taxonomic forest attributes (i.e. species richness, rarefied richness and Shannon diversity) had the strongest relationships with AGB at small spatial scales, where an additional species can still make a difference in terms of niche complementarity, while structural forest attributes (i.e. tree density and tree size) had strong relationships with AGB at all spatial scales.

Main conclusions

Biodiversity has an independent, positive effect on AGB and ecosystem functioning, not only in relatively simple temperate systems but also in structurally complex hyperdiverse tropical forests. Biodiversity conservation should therefore be a key component of the UN Reducing Emissions from Deforestation and Degradation strategy.

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