The Peruvian Amazon has a high level of biodiversity and is the fifth most deforested region in the world; forest plantations are one measure to curb this problem. Generally, businessmen and timber producers select harvestable trees using visual methods based on external morphological characteristics, without taking into account the internal health of the individuals. Therefore, in order to promote and contribute to forestry development, the main objective of this study is to use the acoustic tomograph to determine the internal health of a forest plantation of Tornillo in El Dorado - INIA, District of San Juan Bautista, Loreto. The plantation is 24 years old and consists of 40 individuals of Cedrelinga cateniformis (Ducke) Ducke. The biometric structure and health (internal and external) were evaluated, using equipment such as Field-Map and acoustic tomograph. The dasometric variables sh...

Background: Stingless bees (Apidae: Meliponini) are critical pollinators in the Peruvian Amazon, sustaining biodiversity, crop productivity, and indigenous livelihoods. Despite their ecological and economic importance, the effects of deforestation and illegal logging on their populations remain poorly understood. Nesting tree loss, habitat fragmentation, and changes in elevation influence stingless bee distribution, yet conservation efforts remain insufficient due to a lack of spatial data on their vulnerability. Results: This study examines the spatial distribution, elevation trends, and deforestation threats affecting Melipona eburnea and Tetragonisca angustula, with a focus on tree nesting preferences in the Biosphere Reserve Avireri-Vraem. Using literature reviews, field observations, and GPS surveys, we assessed species distribution patterns, deforestation risks, and nesting tree as...