Intensification of açaí palm production reduce tree species diversity at multiple spatial scales in the Amazonian estuarine forest
Description
Supplementary Material from the original research article entitled: “Intensification of açaí palm production reduce tree species diversity at multiple spatial scales in the Amazonian estuarine forest”. Authors: Madson Antonio Benjamin Freitas, Arleu Barbosa Viana-Junior, Maria Fabíola Barros, José Leonardo Lima Magalhães, Elâine Maria dos Santos Ribeiro, Ima Célia Guimarães Vieira, Marcelo Tabarelli. ARTICLE INFORMATION: This study investigates the impacts of increased açaí palm density for fruit production (açaí intensification) on tree assemblages in the Amazon estuarine forest. Our main result was that açaí intensification is a major driver of tree species assembly and a threat to the Amazon estuarine forest’s natural heritage, reducing species richness and promoting community nestedness. The açaí case highlights the fragility of NTFP (Non-timber forest products) sustainability when market demand exceeds natural yields, requiring better production indicators and biodiversity monitoring, even if extraction increases income for traditional populations.
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Our dataset from tree assemblages were provided by previous study summing up 47 forest plots across seven municipalities (Belém Metropolitan Region, Barcarena and Abaetetuba) in the estuarine region. All tree species with DBH ≥ 5cm across 0.25 1 ha plots (10m x 100m) were sampled. Information on plant traits came from the previous study in our focal sites as already informed.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
CNPq grant 574008/2008 and 406516/2022-7