Variations in the spatial distribution pattern of Bertholletia excelsa in three vegetation cover types in the southeastern Peruvian Amazon
DOI:
https://doi.org/10.55873/rba.v1i2.217Keywords:
chestnut, spatial distributions, K-Ripley functionAbstract
The study aimed to evaluate the spatial distribution patterns of Bertholletia excelsa (chestnut) in three vegetation cover types in the Peruvian Amazon (Tambopata). All B. excelsa trees with a DBH greater than 10 cm were evaluated in 15 forest concessions distributed across three cover types. Diametric distribution models and spatial patterns (Ripley's K function) of B. excelsa were analyzed. In all concessions and cover types, the distribution curve of the number of B. excelsa individuals according to diameter class showed a bell-shaped distribution, suggesting a poor regeneration of B. excelsa in the evaluated Brazil-nut stands. It was found that pre-adults in most concessions had an aggregate pattern, while adults varied between aggregate, random or random pattern at different distances according to concession and size category.
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Copyright (c) 2022 Jorge Garate-Quispe, Gorky Florez-Castillo , Lili Florez-Castillo , Keiko Otsuka-Barriga, Joel Peña-Valdeiglesias
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