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Evolution of nutrient acquisition: when adaptation fills the gap between contrasting ecological theories

Authors: Simon Boudsocq; Sébastien Barot; Nicolas Loeuille; Nicolas Loeuille;

Evolution of nutrient acquisition: when adaptation fills the gap between contrasting ecological theories

Abstract

Although plant strategies for acquiring nutrients have been widely studied from a functional point of view, their evolution is still not well understood. In this study, we investigate the evolutionary dynamics of these strategies and determine how they influence ecosystem properties. To do so, we use a simple nutrient-limited ecosystem model in which plant ability to take up nutrients is subject to adaptive dynamics. We postulate the existence of a trade-off between this ability and mortality. We show that contrasting strategies are possible as evolutionary outcomes, depending on the shape of the trade-off and, when nitrogen is considered as the limiting nutrient, on the intensity of symbiotic fixation. Our model enables us to bridge these evolutionary outcomes to classical ecological theories such as Hardin's tragedy of the commons and Tilman's rule of R *. Evolution does not systematically maximize plant biomass or primary productivity. On the other hand, each evolutionary outcome leads to a decrease in the availability of the limiting mineral nutrient, supporting the work of Tilman on competition between plants for a single resource. Our model shows that evolution can be used to link different classical ecological results and that adaptation may influence ecosystem properties in contrasted ways.

Country
France
Keywords

[SDE] Environmental Sciences, 570, 330, PRODUCTION PRIMAIRE, Nitrogen, FONCTIONNEMENT DE L'ECOSYSTEME, PLANTE, THEORIE, Models, Biological, CYCLE BIOGEOCHIMIQUE, FACTEUR LIMITANT, [ SDE ] Environmental Sciences, SYMBIOSE, Biomass, ADAPTATION, Ecosystem, 580, NUTRITION MINERALE, FIXATION BIOLOGIQUE DE L'AZOTE, NUTRIMENT, Plants, MODELISATION, EVOLUTION, [SDE.BE] Environmental Sciences/Biodiversity and Ecology, FACTEUR EDAPHIQUE, [SDE]Environmental Sciences, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, STRATEGIE ADAPTATIVE

  • BIP!
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    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    17
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
17
Top 10%
Average
Top 10%
Green
bronze