A new device for capturing social bats in caves

The most commonly used tools for capturing bats in caves are mist nets and harp traps. However, for behavioral and ecological studies, these methods are not useful when the aim is to selectively capture focal groups or individual bats. Although some tools have been proposed for this, they have limitations with respect to their weight and the logistics of their use. We present the design of a new device called a "cone trap" that allows targeted captures of specific groups (harems, groups of males and females, nurseries and solitary individuals) of bats in caves.