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

Vleminckx Jason, Schimann Heidy, Decaëns Thibaud, Fichaux Mélanie, Vedel Vincent, Jaouen Gaëlle, Roy Mélanie, Lapied Emmanuel, Engel Julien, Dourdain Aurélie, Petronelli Pascal, Orivel Jérôme, Baraloto Christopher. 2019. Coordinated community structure among trees, fungi and invertebrate groups in Amazonian rainforests. Scientific Reports, 9:11337, 10 p.

https://doi.org/10.1038/s41598-019-47595-6

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Quartile : Q1, Sujet : MULTIDISCIPLINARY SCIENCES

Résumé : 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.

Mots-clés Agrovoc : biodiversité forestière, interactions biologiques, forêt tropicale, écologie des populations, communauté végétale, distribution géographique, arbre, Champignon, Invertébré

Mots-clés géographiques Agrovoc : Amazonie, Guyane française, France

Mots-clés libres : Community ecology, Tropical ecology

Classification Agris : F40 - Écologie végétale
L20 - Écologie animale
P01 - Conservation de la nature et ressources foncières

Champ stratégique Cirad : CTS 1 (2019-) - Biodiversité

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