Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 530104
Title Biodiversity and climate determine the functioning of Neotropical forests
Author(s) Poorter, L.; Sande, M.T. van der; Arets, E.J.M.M.; Ascarrunz, N.; Enquist, B.J.; Finegan, B.; Licona, J.C.; Martinez-Ramos, M.; Mazzei, L.; Meave, J.; Munoz, R.; Nytch, C.J.; Oliveira, A.A. de; Perez-Garcia, E.A.; Prado-Junior, J.A.; Rodriguez-Velazquez, J.; Ruschel, A.R.; Salgado Negret, B.; Schiavini, I.; Swenson, N.G.; Tenorio, E.A.; Thompson, J.; Toledo, M.; Uriarte, M.; Hout, P. van der; Zimmerman, J.K.; Pena Claros, M.
Department(s) Forest Ecology and Forest Management
Alterra - Vegetation, forest and landscape ecology
Publication type Dataset
Publication year 2017
Keyword(s) biodiversity - biomass - carbon - ecosystem functioning - forest dynamics - productivity - soil fertility - tropical forest - water
Toponym Mexico, Costa Rica, Brazil, Colombia, Puerto Rico, Guyana, Bolivia
Abstract Tropical forests account for a quarter of the global carbon storage and a third of the terrestrial productivity. Few studies have teased apart the relative importance of environmental factors and forest attributes for ecosystem functioning, especially for the tropics. This study aims to relate aboveground biomass (AGB), biomass dynamics (i.e., net biomass productivity and its underlying demographic drivers: biomass recruitment, growth and mortality) to forest attributes (tree diversity, community-mean traits, and stand basal area) and environmental conditions (water availability, soil fertility and disturbance). We used data from 26 sites, 201 one-ha plots and >92,000 trees distributed across the Neotropics. We quantified for each site water availability and soil total exchangeable bases and for each plot three key community-weighted mean functional traits that are important for biomass stocks and productivity. We used structural equation models to test the hypothesis that all drivers have independent, positive effects on biomass stocks and dynamics. Of the relationships analysed, vegetation attributes were more frequently significantly associated with biomass stocks and dynamics than environmental conditions (in 67% versus 33% of the relationships). High climatic water availability increased biomass growth and stocks, light disturbance increased biomass growth, and soil bases had no effect. Rarefied tree species richness had consistent positive relationships with biomass stocks and dynamics, probably because of niche complementarity, but was not related to net biomass productivity. Community-mean traits were good predictors of biomass stocks and dynamics. Water availability has a strong positive effect on biomass stocks and growth, and a future predicted increase in (atmospheric) drought might, therefore, potentially reduce carbon storage. Forest attributes – including species diversity and community-weighted mean traits – have independent and important relationships with AGB stocks, dynamics, and ecosystem functioning, not only in relatively simple temperate systems, but also in structurally complex hyper-diverse tropical forests.
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