Environmental drivers of forest structure and stem turnover across Venezuelan tropical forests

Emilio Vilanova, Hirma Ramírez-Angulo, Armando Torres-Lezama, Gerardo Aymard, Luis Gámez, Cristabel Durán, Lionel Hernández, Rafael Herrera, Geertje van der Heijden, Oliver L Phillips and Gregory J Ettl

PLOS ONE, 2018, vol. 13, issue 6, 1-27

Abstract: Using data from 50 long-term permanent plots from across Venezuelan forests in northern South America, we explored large-scale patterns of stem turnover, aboveground biomass (AGB) and woody productivity (AGWP), and the relationships between them and with potential climatic drivers. We used principal component analysis coupled with generalized least squares models to analyze the relationship between climate, forest structure and stem dynamics. Two major axes associated with orthogonal temperature and moisture gradients effectively described more than 90% of the environmental variability in the dataset. Average turnover was 1.91 ± 0.10% year-1 with mortality and recruitment being almost identical, and close to average rates for other mature tropical forests. Turnover rates were significantly different among regions (p

Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0198489

DOI: 10.1371/journal.pone.0198489

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