# Weak warning signals can persist in the absence of gene flow

> Research article (Proceedings of the National Academy of Sciences, 2019) · cited 66× · AI/ML

**Wikidata**: [openalex:W2972025072](https://www.wikidata.org/wiki/openalex:W2972025072)  
**Source**: https://4ort.xyz/entity/weak-warning-signals-can-persist-in-the-absence-of-gene-flow