# Roaring and repetition: How bowhead whales adjust their call density and source level (Lombard effect) in the presence of natural and seismic airgun survey noise

> Research article (The Journal of the Acoustical Society of America, 2020) · cited 51× · AI/ML

**Wikidata**: [openalex:W3015156611](https://www.wikidata.org/wiki/openalex:W3015156611)  
**Source**: https://4ort.xyz/entity/roaring-and-repetition-how-bowhead-whales-adjust-their-call-density-and-source-level-lombard-effect-in-the-presence-of-n