Echolocation calls of some bat species in western Uganda

ABSTRACT With the rise of accessible recording technology, passive acoustic monitoring can be an affordable and rapid way to assess species richness, even when individual animals cannot be captured due to regulatory or practical obstacles. Motivated by the relative lack of data and in partnership with the local populace, we recorded echolocation calls of freely-flying bats across six locations in rural western Uganda using opportunistic passive acoustic recordings. Frequency-modulated echolocation calls were recorded at all six locations, while constant-frequency calls were recorded only at sites near entrances to caves. Preliminary species identifications were made using Kaleidoscope Pro, habitat distribution maps for Uganda, and by reference to published work. We make our acoustic recordings publicly available to serve as a resource for further explorations of the richness of bat species in Uganda.