Coordinated community structure among trees, fungi and invertebrate groups in Amazonian rainforests

Abstract : Little is known regarding how trophic interactions shape community assembly in tropical forests. Here we assess multi-taxonomic community assembly rules using a rare standardized coordinated inventory comprising exhaustive surveys of five highly-diverse taxonomic groups exerting key ecological functions: trees, fungi, earthworms, ants and spiders. We sampled 36 1.9-ha plots from four remote locations in French Guiana including precise soil measurements, and we tested whether species turnover was coordinated among groups across geographic and edaphic gradients. All species group pairs exhibited significant compositional associations that were independent from soil conditions. For some of the pairs, associations were also partly explained by soil properties, especially soil phosphorus availability. Our study provides evidence for coordinated turnover among taxonomic groups beyond simple relationships with environmental factors, thereby refining our understanding regarding the nature of interactions occurring among these ecologically important groups.
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https://hal.umontpellier.fr/hal-02272181
Contributeur : Yannick Brohard <>
Soumis le : mardi 27 août 2019 - 15:24:32
Dernière modification le : lundi 18 novembre 2019 - 15:46:53

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Jason Vleminckx, Heidy Schimann, Thibaud Decaëns, Mélanie Fichaux, Vincent Vedel, et al.. Coordinated community structure among trees, fungi and invertebrate groups in Amazonian rainforests. Scientific Reports, Nature Publishing Group, 2019, 9 (1), ⟨10.1038/s41598-019-47595-6⟩. ⟨hal-02272181⟩

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