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Cornell University Listen to bearded seal vocalizations, sometimes described as “otherworldly.” These loud calls are essential to bearded seals’ reproduction, but rising industrial noise in the Arctic could have them struggling to be heard. Bearded seals are loud – but not loud enough February 24, 2021 During mating season, male bearded seals make loud calls to attract a mate. How loud? Well, even their “quiet” call can still be as ear-rattling as a chainsaw. These elaborate vocalizations are essential for bearded seal reproduction, and have to be loud enough to be heard over the cacophony of their equally loud brethren . But in the rapidly changing Arctic soundscape, where noise from industrial activities is predicted to dramatically increase in the next 15 years, bearded seals may need to adjust their calling behavior if they are going to be heard above the noise generated by ships and commercial activities. ....
Credit: Michael Cameron, NOAA Ithaca, NY During mating season, male bearded seals make loud calls to attract a mate even their quiet call could still be as ear-rattling as a chainsaw. Bearded seals have to be loud to be heard over the cacophony of their equally loud brethren. And, increasingly, the noise humans make is adding to the underwater din and could have serious consequences. A study conducted by the Cornell Lab of Ornithology s Center for Conservation Bioacoustics (CCB) aims to understand how resilient bearded seals can be to changes in ambient underwater noise. The results are published in Proceedings of the Royal Society: Biological Science. ....
E-Mail ITHACA, N.Y. - During mating season, male bearded seals make loud calls to attract a mate. How loud? Well, even their quiet call can still be as ear-rattling as a chainsaw. These elaborate vocalizations are essential for bearded seal reproduction, and have to be loud enough to be heard over the cacophony of their equally loud brethren. But in the rapidly changing Arctic soundscape, where noise from industrial activities is predicted to dramatically increase in the next 15 years, bearded seals may need to adjust their calling behavior if they are going to be heard above the noise generated by ships and commercial activities. ....