Experimentally broadcast ocean surf and river noise alters birdsong structure

Clinton Francis, Veronica Reed, Cory Toth, Ryan Wardle, Dylan Gomes & Jesse Barber
Anthropogenic noise and its effects on acoustic communication have received considerable attention in recent decades. Yet, the natural acoustic environment’s influence on communication and its role in shaping acoustic signals remains unclear. Using landscape-level playbacks of ocean surf and river noise in coastal and riparian habitat, respectively, we investigated how water-generated noise influences spectral and temporal song characteristics in six songbird species. We recorded individuals defending territories across 37 sites, with each site representing one...
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