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Constraints And Context: Testing The Effects Of Anthropogenic Noise And Social Factors On Avian Signaling Behavior, Erin E. Grabarczyk

Dissertations

Rapid human-generated environmental change has irrevocably altered the natural world. Understanding how animal populations respond and persist within these modified landscapes is critical for mitigating associated negative environmental impacts. For organisms that rely on vocal communication, anthropogenic noise masks signals, reducing the area over which vocalizations can be heard. For birds, noise overlaps with songs males use to defend breeding areas and attract mates, both critical aspects of reproduction. In response to noise, males adjust their song structure, but whether they actually benefit from song changes is unknown. Moreover, it remains unclear whether noise disrupts communication by affecting interactions with …