Diretrizes e boas práticas para o uso de redes de neblina em procedimentos de captura e manipulação de aves e morcegos

Abstract

Mist nets are used to capture birds and bats for different studies. Despite the mist net being widely used, as it presents high transmission in the capture of different types of birds and bats, incidents may occur to animals that become entangled in its mesh, such as, for example, opportunistic predation. In addition to these incidents, during the disentangling of the animals and their manipulation and subsequent marking, injuries may occur, such as abrasions on the neck and forearm, strangulation, abortions, tears in the patagium and fractures in the tarsi and carpus, in addition to deaths. All these incidents and injuries occur mainly due to the non-use of guidelines and recommendations of good practices in the assembly and checking of the nets, as well as for the manipulation and marking of the animals. Therefore, the general objective of this study is to review current global knowledge about opportunistic predation of birds and bats in mist nets, as well as to describe the main types of injuries that occur with bats due to their capture, manipulation and collar tagging. Specifically, Chapter I is a general introduction on how the use of mist nets began, their main peculiarities in the evolution of flying vertebrates and what types of injuries and causes of death can occur when capturing birds and bats and handling and bats bats. Chapter II aims to describe the main incidents caused by the capture, handling and marking of neotropical bats based on a large database originating from long-term studies carried out in Brazil. Finally, Chapter III aims to quantify and qualify opportunistic predation events in birds and bats that occur in mist nets, using a global review of scientific studies, as well as an evaluation of the different guidelines and recommendations that exist to avoid this type of predation. incident.