ENTOMOLOGICAL DIVERSITY BETWEEN AN ECOSYSTEM IN PROCESS OF NATURAL REGENERATION AND A PRIMARY FOREST, AMAZONAS, PERU

• Autores: Alvarado, Lleydy, Iannacone, José, Gamarra, Oscar
• Formato: artículo
• Fecha de Publicación: 2015
• Institución: Universidad Nacional Federico Villarreal
• Repositorio: Revistas - Universidad Nacional Federico Villarreal
• Lenguaje: español
• OAI Identifier: oai:ojs2.revistas.unfv.edu.pe:article/1549
• Enlace del recurso: https://revistas.unfv.edu.pe/rtb/article/view/1549
• Nivel de acceso: acceso abierto
• Materia: Amazon; primary forest; entomological inventory; ecosystem in the process of natural regeneration; seasonality; Amazonas; bosque primario; ecosistema en proceso de regeneración natural; estacionalidad; inventario entomológico

The Peruvian Amazon region is experiencing a number of impacts such as deforestation which results in loss of vegetation cover and consequently reduced habitat for wildlife. The aim of this study was to evaluate the entomological diversity in an ecosystem in a natural regeneration process (BS) and a primary forest (BP) in Bongará, Amazonas, Peru. The insects were collected using pitfall traps, with bait and malaise, which were arranged in a cross system having as midpoint the center of each area. The collection was made during three periods: dry, semi-dry and rainy. 18650 insects and 150 families distributed in 13 orders were classified. Those Orders who had a higher percentage of richness and abundance were, respectively, Diptera (24%; 45.2%), Coleoptera (24%; 26.4%) and Hymenoptera (21.3%; 14%). Comparing the two areas assessed, BP had a higher abundance compared to BS. The two most abundant families were Drosophilidae and Staphylinidae. Greater abundance and richness occurred in the semi-dry and dry compared to the rainy season period. The lowest values in the species richness of families, as well as the abundance and Shannon-Wiener for the natural ecosystem regeneration rainy-period were observed. The similarity of the families of insects between the two areas evaluated with varying degrees of human intervention shows few shared families. The rainy season showed a lower degree of similarity at the entomological family level compared to the dry and semi-dry period. The abundance and diversity of entomofauna can be used as a bioindicator of human impact and seasonal evaluation of the forest environment.