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Evolutionarily Stable Strategy Carbon Allocation to Foliage, Wood, and Fine Roots in Trees Competing for Light and Nitrogen: An Analytically Tractable, Individual-Based Model and Quantitative Comparisons to Data

Dybzinski, Ray ; Farrior, Caroline ; Wolf, Adam ; Reich, Peter B. ; Pacala, Stephen W. Christopher A. Klausmeier ; Mark A. McPeek

The American naturalist, 2011-02, Vol.177 (2), p.153-166 [Periódico revisado por pares]

Chicago, IL: University of Chicago Press

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Título:
Evolutionarily Stable Strategy Carbon Allocation to Foliage, Wood, and Fine Roots in Trees Competing for Light and Nitrogen: An Analytically Tractable, Individual-Based Model and Quantitative Comparisons to Data
Autor: Dybzinski, Ray ; Farrior, Caroline ; Wolf, Adam ; Reich, Peter B. ; Pacala, Stephen W.
Christopher A. Klausmeier ; Mark A. McPeek
Assuntos: Animal and plant ecology ; Animal, plant and microbial ecology ; Biological and medical sciences ; Biological Evolution ; Carbon ; Carbon - metabolism ; Comparative analysis ; Demecology ; Forest canopy ; Fundamental and applied biological sciences. Psychology ; General aspects ; Leaves ; Light ; Modeling ; Models, Biological ; Nitrogen ; Nitrogen - metabolism ; Photosynthesis ; Plant growth ; Plant Leaves - metabolism ; Plant roots ; Plant Roots - metabolism ; Plants and fungi ; Respiration ; Trees ; Trees - physiology ; Understory ; Wood - metabolism
É parte de: The American naturalist, 2011-02, Vol.177 (2), p.153-166
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
Descrição: We present a model that scales from the physiological and structural traits of individual trees competing for light and nitrogen across a gradient of soil nitrogen to their community-level consequences. The model predicts the most competitive (i.e., the evolutionarily stable strategy [ESS]) allocations to foliage, wood, and fine roots for canopy and understory stages of trees growing in old-growth forests. The ESS allocations, revealed as analytical functions of commonly measured physiological parameters, depend not on simple root-shoot relations but rather on diminishing returns of carbon investment that ensure any alternate strategy will underperform an ESS in monoculture because of the competitive environment that the ESS creates. As such, ESS allocations do not maximize nitrogen-limited growth rates in monoculture, highlighting the underappreciated idea that the most competitive strategy is not necessarily the “best,” but rather that which creates conditions in which all others are “worse.” Data from 152 stands support the model’s surprising prediction that the dominant structural trade-off is between fine roots and wood, not foliage, suggesting the “root-shoot” trade-off is more precisely a “root-stem” trade-off for long-lived trees. Assuming other resources are abundant, the model predicts that forests are limited by both nitrogen and light, or nearly so.
Editor: Chicago, IL: University of Chicago Press
Idioma: Inglês

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Evolutionarily Stable Strategy Carbon Allocation to Foliage, Wood, and Fine Roots in Trees Competing for Light and Nitrogen: An Analytically Tractable, Individual-Based Model and Quantitative Comparisons to Data

Dybzinski, Ray ; Farrior, Caroline ; Wolf, Adam ; Reich, Peter B. ; Pacala, Stephen W. Christopher A. Klausmeier ; Mark A. McPeek

Chicago, IL: University of Chicago Press

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