Passive acoustic monitoring of biodiversity involves capturing the sounds of animals emitted intentionally or unintentionally in a wide variety of ecosystems, using acoustic recorders. It is used to monitor cetaceans, numerous insects and crustaceans, bats and birds, frogs, as well as a large number of fish and other mammals, in order to understand their behavior, distribution and activities.

The findings are published in the journal Global Ecology and Biogeography.