Tipos de forrajeo y gremios alimenticios de aves en bosques sobre arena blanca de la Reserva Nacional Allpahuayo Mishana, Loreto, Perú

Abstract

The objective of this study was to learn about the types of foraging and feeding guilds of birds present in white sands forest ecosystem of the Allpahuayo Mishana National Reserve (RNAM). The study took place in two one-hectare plots of white sand forest between the months of October 2014 and March 2015. The ecosystems consisted of high wet varillal (HWV) and high dry varillal (HDV), we used, avian point count to come to our results (APC). A total of 10 types of foraging strategies were observed: sally, glean, hammer, hang, screen, pick up, flake, probe, lunge and flush pursue. 76 species of birds were registered between the two plots. With this classification, the most dominant foraging behaviors were sallying, followed by gleaning. The least dominant behavior was probing. Six feeding guilds were recorded: insectivorous, frugivorous, frugivorous / insectivorous, frugivorous / granivorous, nectivorous and carnivore. The insectivorous guild was the most dominant, followed by frugivorous. The least dominant was: nectivorous and carnivore.