# Apparent source levels and active communication space of whistles of free-ranging Indo-Pacific humpback dolphins ( <i>Sousa chinensis</i> ) in the Pearl River Estuary and Beibu Gulf, China

> Research article (PeerJ, 2016) · cited 22× · AI/ML

**Wikidata**: [openalex:W2258299034](https://www.wikidata.org/wiki/openalex:W2258299034)  
**Source**: https://4ort.xyz/entity/apparent-source-levels-and-active-communication-space-of-whistles-of-free-ranging-indo-pacific-humpback-dolphins-i-sousa