Topic: collective action

Preventing biological invasions requires coordinated action before and after organisms arrive. This seminar examines the regulatory frameworks, biosecurity practices, public education and collective action used to reduce introductions and manage invasive species.

Digital platforms generate unprecedented traces of human behaviour, offering new methodological approaches to understanding collective action, polarisation, and social dynamics. Through analysis of millions of digital traces across multiple studies, we demonstrate how online behaviours predict offline action: Brexit-related tribal discourse responds to real-world events, machine learning models achieve 80% accuracy in predicting real-world protest attendance from digital signals, and social validation through "likes" emerges as a key driver of mobilization. Extending this approach to conspirac