Plant–herbivore–decomposer stoichiometric mismatches and nutrient cycling in ecosystems. Cherif, M. & Loreau, M. Proc. R. Soc. B, 280(1754):20122453, March, 2013. ![Plant–herbivore–decomposer stoichiometric mismatches and nutrient cycling in ecosystems [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Plant stoichiometry is thought to have a major influence on how herbivores affect nutrient availability in ecosystems. Most conceptual models predict that plants with high nutrient contents increase nutrient excretion by herbivores, in turn raising nutrient availability. To test this hypothesis, we built a stoichiometrically explicit model that includes a simple but thorough description of the processes of herbivory and decomposition. Our results challenge traditional views of herbivore impacts on nutrient availability in many ways. They show that the relationship between plant nutrient content and the impact of herbivores predicted by conceptual models holds only at high plant nutrient contents. At low plant nutrient contents, the impact of herbivores is mediated by the mineralization/immobilization of nutrients by decomposers and by the type of resource limiting the growth of decomposers. Both parameters are functions of the mismatch between plant and decomposer stoichiometries. Our work provides new predictions about the impacts of herbivores on ecosystem fertility that depend on critical interactions between plant, herbivore and decomposer stoichiometries in ecosystems.
@article{cherif_plantherbivoredecomposer_2013,
title = {Plant–herbivore–decomposer stoichiometric mismatches and nutrient cycling in ecosystems},
volume = {280},
copyright = {© 2013 The Author(s) Published by the Royal Society. All rights reserved.},
issn = {0962-8452, 1471-2954},
url = {http://rspb.royalsocietypublishing.org/content/280/1754/20122453},
doi = {10.1098/rspb.2012.2453},
abstract = {Plant stoichiometry is thought to have a major influence on how herbivores affect nutrient availability in ecosystems. Most conceptual models predict that plants with high nutrient contents increase nutrient excretion by herbivores, in turn raising nutrient availability. To test this hypothesis, we built a stoichiometrically explicit model that includes a simple but thorough description of the processes of herbivory and decomposition. Our results challenge traditional views of herbivore impacts on nutrient availability in many ways. They show that the relationship between plant nutrient content and the impact of herbivores predicted by conceptual models holds only at high plant nutrient contents. At low plant nutrient contents, the impact of herbivores is mediated by the mineralization/immobilization of nutrients by decomposers and by the type of resource limiting the growth of decomposers. Both parameters are functions of the mismatch between plant and decomposer stoichiometries. Our work provides new predictions about the impacts of herbivores on ecosystem fertility that depend on critical interactions between plant, herbivore and decomposer stoichiometries in ecosystems.},
language = {en},
number = {1754},
urldate = {2017-05-27},
journal = {Proc. R. Soc. B},
author = {Cherif, Mehdi and Loreau, Michel},
month = mar,
year = {2013},
pmid = {23303537},
keywords = {\#nosource},
pages = {20122453},
}
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