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Quantifying the role of wood density in explaining interspecific variation in growth of tropical trees

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dc.contributor.author Francis, Emily J. en
dc.contributor.author Muller-Landau, Helene C. en
dc.contributor.author Wright, S. Joseph en
dc.contributor.author Visser, Marco D. en
dc.contributor.author Iida, Yoshiko en
dc.contributor.author Fletcher, Christine en
dc.contributor.author Hubbell, Stephen P. en
dc.contributor.author Kassim, Abd Rahman en
dc.date.accessioned 2017-09-28T09:01:21Z
dc.date.available 2017-09-28T09:01:21Z
dc.date.issued 2017
dc.identifier.citation Francis, Emily J., Muller-Landau, Helene C., Wright, S. Joseph, Visser, Marco D., Iida, Yoshiko, Fletcher, Christine, Hubbell, Stephen P., and Kassim, Abd Rahman. 2017. "<a href="https://repository.si.edu/handle/10088/33375">Quantifying the role of wood density in explaining interspecific variation in growth of tropical trees</a>." <em>Global Ecology and Biogeography</em>. 26 (10):1078&ndash;1087. <a href="https://doi.org/10.1111/geb.12604">https://doi.org/10.1111/geb.12604</a> en
dc.identifier.issn 1466-822X
dc.identifier.uri https://hdl.handle.net/10088/33375
dc.description.abstract Aim To evaluate how wood density relates to tree growth rates in simple models and two tropical forests. Location Barro Colorado Island, Panama; and Pasoh Forest Reserve, Malaysia. Time Period 1986 2010. Major Taxa Studied Trees. Methods We derived expected relationships of wood density with diameter growth at a given diameter under a null hypothesis that aboveground biomass growth is independent of wood density, and an alternative hypothesis that biomass growth scales with crown area, which itself increases with wood density. We tested these assumptions and predictions through analyses of interspecific relationships of wood density with height, crown area and diameter growth at constant diameter in two tropical forests. Results Height was unrelated to wood density, whereas crown areas showed a slightly positive relationship to wood density. Thus, the expected exponent of diameter growth with wood density was equal to minus one under the null hypothesis, and equal to the exponent of crown area with wood density minus one under the alternative hypothesis. Empirical relationships of diameter growth and biomass growth with wood density were broadly consistent with the null hypothesis that biomass growth is unrelated to wood density at both sites, except in trees &lt; 13 cm in diameter at Barro Colorado Island, which showed more negative relationships. Main conclusions Although most previous analyses of growth with wood density have examined linear relationships, simple models suggest that both tree diameter growth and tree biomass growth are power functions of wood density. Analyses in two tropical forests showed that aboveground biomass growth was approximately constant with wood density, and thus, that diameter growth was inversely proportional to wood density, for most tree sizes, although confidence intervals on the scaling exponents were broad. More negative relationships of growth with wood density at small sizes might reflect differential environmental filtering, in which higher wood density trees are found in less favourable understorey environments. en
dc.relation.ispartof Global Ecology and Biogeography en
dc.title Quantifying the role of wood density in explaining interspecific variation in growth of tropical trees en
dc.type Journal Article en
dc.identifier.srbnumber 143768
dc.identifier.doi 10.1111/geb.12604
rft.jtitle Global Ecology and Biogeography
rft.volume 26
rft.issue 10
rft.spage 1078
rft.epage 1087
dc.description.SIUnit STRI en
dc.description.SIUnit Peer-reviewed en
dc.citation.spage 1078
dc.citation.epage 1087

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