We’re trying to understand how sounds can be used as measures of ecosystem health,” says Pijanowski, who teaches in the department of forestry and natural resources at Purdue University.

He and some colleagues have written a call to action in the journal BioScience. It’s time, they say, to formalize the study of “soundscape ecology.”

"We’re interested in all the voices of the landscape," Pijanowski says. "Not just particular individual species, but really, the orchestration of those different sounds by biological organisms."

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