La construcción de la carretera Iquitos-Saramiriza proyectada en el departamento de Loreto plantea amenazas sobre la fauna y flora de una zona altamente biodiversa y poco alterada. Aquí, resumimos dichas amenazas en tres puntos: 1) impactos probables, identificados a través de revisión de literatura, 2) estimación de la deforestación, realizada por comparación con otras carreteras amazónicas peruanas y 3) especies más probablemente impactadas. La lista de impactos probables incluyó fragmentación de hábitat, deterioro ambiental, atropellos, dispersión de patógenos, especies invasoras, deforestación, caminos no oficiales y cacería. Estos impactos podrían afectar a unas 3961 especies de plantas y 1595 de vertebrados. La deforestación, en el transcurso de las tres próximas décadas, podría llegar a ser entre 1128 y 3200 km², lo que equivale a más del 80% de la deforesta...

The jaguar (Panthera onca), is the largest feline in America and is threatened by factors such as deforestation, hunting, reduction of its prey and the trafficking of its parts. Therefore, several efforts have been made to conserve this species on a continental level, however, these valuable initiatives have many mapping inaccuracies and exclude important areas for jaguar range. Due this, based on forest and non-forest maps and jaguar observation points in the last 20 years, we present a proposal of maps of current, probable and historical distribution for the jaguar, with areas that cover between 60 and 47% of the surface of Peru.

The jaguar (Panthera onca), is the largest feline in America and is threatened by factors such as deforestation, hunting, reduction of its prey and the trafficking of its parts. Therefore, several efforts have been made to conserve this species on a continental level, however, these valuable initiatives have many mapping inaccuracies and exclude important areas for jaguar range. Due this, based on forest and non-forest maps and jaguar observation points in the last 20 years, we present a proposal of maps of current, probable and historical distribution for the jaguar, with areas that cover between 60 and 47% of the surface of Peru.

In order to make decisions on the conservation or management of wild species, it is a priority to know their conservation status. For this purpose, the most widely used method is IUCN’s categorization of species according to the level of threat they face, both globally and nationally. In this article we conducted an analysis of threatened plant and vertebrate species, and of data deficient species in the department of Loreto, the largest and one of the most biodiverse in Peru, to identify the main threats they face, identify information gaps, and compare the national and global lists. According to both lists combined, 226 species considered threatened have been recorded in Loreto. Large differences exist between the national and global lists, mainly for plants and fish. The main threat recorded is habitat loss, which affects most of the threatened terrestrial vertebrate species. Large ...

Evaluar la efectividad de acciones de manejo en áreas protegidas del Gran Paisaje Yavarí Samiria es esencial para la conservación y el uso sustentable de la biodiversidad de la región. El objetivo de este trabajo fue evaluar el uso de modelos de ocupación, como herramienta para monitorear la efectividad de los acuerdos comunales de extracción de especies. De febrero a mayo de 2015, se establecieron 84 cuadrículas de 1km2 en el Área de Conservación Regional Comunal Tamshiyacu Tahuayo (ACRCTT), evaluando la ocupación de Tapirus terrestris (Linnaeus), Tayassu pecari (Link), Pecari tajacu (Linnaeus), Mazama sp., Cuniculus paca (Linnaeus), Dasyprocta sp., Dasypus sp. y Cracidae Vigors, a través de señales y rastros en transectos y estaciones de trampas-cámara. Se ajustaron modelos de ocupación single season-single species con covariables de sitio (CovS) para evaluar el efecto de...