Título
Effects of the forests-agriculture conversion on the availability and diversity of forest products in a neotropical rainforest region
Autor
Fragoso Medina, Mayra del C.
Navarrete Segueda, Armando
Ceccon, Eliane
Martínez Ramos, Miguel
Resumen
Tropical rainforests offer a diverse array of real or potential forest products (FP). However, the ongoing conversion of these forests to agriculture raises concerns about the future availability and sustainability of FP. In this study, we examined the changes in availability (tree density and above-ground biomass) and species richness of native trees, recognized by local communities as sources of FP, with the forest-to-agriculture conversion in a Mesoamerican tropical rainforest region. Specifically, we tested hypotheses on whether species with FP had a higher, equal, or lower reduction in the availability, diversity, and probability of persistence than species without FP with the forest conversion. We interviewed landowners to identify tree species with FP and documented management practices and regulations for using these species. In fourteen 1 km2 landscapes, encompassing the entire range of forest-to-agriculture conversion (from 0 % to ?100 % old-growth forest cover), we analyzed changes in the availability and richness of species with and without FP. In each landscape, we randomly established 30 plots (each 706.8 m2, totaling 420 plots and 29.7 ha sampling area) covered by old-growth forest, secondary forest, or agricultural fields (mostly cattle pastures). Over four years, we surveyed all trees with a diameter at breast height ? 10 cm in these plots. With the forest conversion, assemblages of tree species with FP exhibited a higher reduction in aboveground biomass than species without FP. However, assemblages of species with FP exhibited a significantly lower reduction in abundance, species richness, and a higher probability of persistence than assemblages of species without FP. Furthermore, we found evidence of implementing forest management practices favoring the preservation of species with FP in agricultural lands. Thus, we conclude that people intentionally foster the persistence of valuable species in their agricultural fields, which could have important implications for the structure and composition of future regenerating forests on abandoned agricultural lands. In the long term, this might lead to an overabundance of locally valuable species, as observed in old-growth tropical rainforests that native people ancestrally managed.
Derechos
La titularidad de los derechos patrimoniales de esta obra pertenece a Elsevier. Su uso se rige por una licencia Creative Commons BY-NC-ND 4.0 Internacional, https://creativecommons.org/licenses/by-nc-nd/4.0/, fecha de asignación de la licencia 2023-12-19, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico repositorio@crim.unam.mx
Enlace al documento
https://www.sciencedirect.com/science/article/pii/S2666719323001139
https://doi.org/10.1016/j.tfp.2023.100481
https://doi.org/10.1016/j.tfp.2023.100481
Forma de citar
Fragoso Medina, M. del C., Navarrete Segueda, A., Ceccon, E. y Martínez Ramos, M. (2024). Effects of the forests-agriculture conversion on the availability and diversity of forest products in a neotropical rainforest region. Trees, forests and people, 15 (2024) 100481
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