Se realizó un estudio en la laguna Cedrococha, El Estrecho río Putumayo durante los meses de Junio - Noviembre del 2011, para evaluar sus características biológicas, parámetros físicos y químicos y en base a los resultados, proponer un diseño de manejo de "paiche" para el repoblamiento de la laguna; mediante pesca con redes de espera tipo agalleras, se registró la presencia de 46 especies de peces en la laguna distribuidos sistemáticamente en 40 géneros, 17 familias y S órdenes, también se realizó un análisis de fito y zooplancton mostrando las divisiones más abundantes, de igual manera para el caso del zooplancton. Al analizar los parámetros físicos y químicos y compararlos con otros estudios, se determinó que la laguna posee condiciones favorables para el desarrollo de los peces. En el análisis porcentual de los peces según orden taxonómico, se determinó que el ...

The use of computational tools combined with biological knowledge allows the identification of optimal areas of occupancy based on ecological requirements, which are key for species conservation. However, for many species, this baseline is lacking, especially in the department of Loreto, Peru. This study generated geographical distribution models for two Amazonian bird species: Harpia harpyja “harpy Eagle” and Sarcoramphus papa “King Vulture”. Using a combination of geographic occurrence data and bioclimatic variables, the modeling was conducted with the Maxent algorithm. Our models indicated that for H. harpyja, the optimal conditions of occurrence were located in the north and east of the department, in the provinces of Putumayo, Mariscal Ramón Castilla, and Maynas, with the most important bioclimatic variables being the mean diurnal temperature range and annual precipitation....

Termites are ecosystem engineers whose nest-building activities alter soil structure and nutrient cycling. In this study, we assessed the characteristics and diversity of nest-building termite assemblages in a white-sand forest fragment near Iquitos, Loreto, Peru. We surveyed ten 30 × 30 m plots in the forest to quantify nest density, taxonomic composition, nest-type, botanical substrates, nest coloration, and spatial variation in nest abundance. A total of 156 nests were recorded, representing five genera: Nasutitermes, Embiratermes, Coptotermes, Constrictotermes, and Termes. The most common botanical substrates associated with nest building belonged to the families Euphorbiaceae, Moraceae, and Fabaceae, particularly Alchornea triplinervia. Most nests were arboreal (58,0%) and dark brown in color (57,05%). Nest abundance increased significantly with greater distance from the road. In c...