Reliable estimation of the size or density of wild animal populations is very important for
effective wildlife management, conservation and ecology. Currently, the most widely used …

Mobile animal groups provide some of the most compelling examples of self-organization in
the natural world. While field observations of songbird flocks wheeling in the sky or anchovy …

Fixed autonomous acoustic recording devices (autonomous recorders [ARs]) are defined as
any electronic recording system that acquires and stores acoustic data internally (ie, without …

Many marine animals use sound passively or actively for communication, foraging, predator
avoidance, navigation, and to sense their environment. The advent of acoustic recording …

The Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientalis) is endemic to
the middle and lower reaches of the Yangtze River, China. It is the only freshwater …

Underwater sound plays an important role in some critical life functions of many aquatic
animals. Underwater noise pollution has received relatively more attention in ocean …

Passive acoustic monitoring (PAM) is increasingly being adopted as a non-invasive method
for the assessment of ocean ecological dynamics. PAM is an important sampling approach …

Echolocation behaviour of a harbor porpoise and six finless porpoises was recorded in open-
water systems using acoustic data loggers (A-tag). In total 1359 click trains were recorded …

This study presents bioacoustic recordings in combination with movements and diving
behavior of three free‐ranging harbor porpoises (a female and two males) in Danish waters …

Toothed whales rely on sound to echolocate prey and communicate with conspecifics, but
little is known about how extreme pressure affects pneumatic sound production in deep …