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<title lang=en>Leaf traits and decomposition in tropical rainforests: revisiting some commonly held views and towards a new hypothesis</title>
<creator>Haettenschwiler, Stephan</creator>
<creator>Coq, Sylvain</creator>
<creator>Barantal, Sandra</creator>
<creator>Handa, Ira Tanya</creator>
<contributor>Centre d’Ecologie Fonctionnelle et Evolutive (CEFE) ; Institut de Recherche pour le Développement (IRD [France-Sud]) - Centre National de la Recherche Scientifique (CNRS) - Université de Montpellier (UM) - Institut national de la recherche agronomique [Montpellier] (INRA Montpellier) - École pratique des hautes études (EPHE) - Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro) - Université Paul-Valéry - Montpellier 3 (UM3) - Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)</contributor>
<contributor>Ecologie des forêts de Guyane (ECOFOG) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - AgroParisTech - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>CNRS; Swiss National Science Foundation</contributor>
<source>ISSN: 0028-646X</source>
<source>EISSN: 1469-8137</source>
<source>New Phytologist</source>
<publisher>Wiley</publisher>
<identifier>hal-01032400</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01032400</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01032400</source>
<source>New Phytologist, Wiley, 2011, 189 (4), pp.950 - 965. 〈10.1111/j.1469-8137.2010.03483.x〉</source>
<identifier>DOI : 10.1111/j.1469-8137.2010.03483.x</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1469-8137.2010.03483.x</relation>
<language>en</language>
<subject lang=en>energy starvation</subject>
<subject lang=en>French Guiana</subject>
<subject lang=en>litter quality</subject>
<subject lang=en>mycorrhizas</subject>
<subject lang=en>nutrient cycling</subject>
<subject lang=en>phosphorus</subject>
<subject lang=en>soil fauna</subject>
<subject lang=en>ORGANIC-MATTER DECOMPOSITION</subject>
<subject lang=en>ARBUSCULAR MYCORRHIZAL FUNGI</subject>
<subject lang=en>LITTER DECOMPOSITION</subject>
<subject lang=en>NUTRIENT LIMITATION</subject>
<subject lang=en>CLIMATE-CHANGE</subject>
<subject lang=en>NITROGEN MINERALIZATION</subject>
<subject lang=en>TERRESTRIAL ECOSYSTEMS</subject>
<subject lang=en>TEMPERATURE-DEPENDENCE</subject>
<subject lang=en>RESORPTION EFFICIENCY</subject>
<subject lang=en>PHOSPHORUS LIMITATION</subject>
<subject>[SDV.SA] Life Sciences [q-bio]/Agricultural sciences</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Proper estimates of decomposition are essential for tropical forests, given their key role in the global carbon (C) cycle. However, the current paradigm for litter decomposition is insufficient to account for recent observations and may limit model predictions for highly diverse tropical ecosystems. In light of recent findings from a nutrient-poor Amazonian rainforest, we revisit the commonly held views that: litter traits are a mere legacy of live leaf traits; nitrogen (N) and lignin are the key litter traits controlling decomposition; and favourable climatic conditions result in rapid decomposition in tropical forests. Substantial interspecific variation in litter phosphorus (P) was found to be unrelated to variation in green leaves. Litter nutrients explained no variation in decomposition, which instead was controlled primarily by nonlignin litter C compounds at low concentrations with important soil fauna effects. Despite near-optimal climatic conditions, tropical litter decomposition proceeded more slowly than in a climatically less favourable temperate forest. We suggest that slow decomposition in the studied rainforest results from a syndrome of poor litter C quality beyond a simple lignin control, enforcing energy starvation of decomposers. We hypothesize that the litter trait syndrome in nutrient-poor tropical rainforests may have evolved to increase plant access to limiting nutrients via mycorrhizal associations.</description>
<date>2011</date>
</dc>
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