How evolution alters biological invasions

Biological invasions pose major threats to biodiversity, but little is known about how evolution might alter their impacts over time. Now, Rutgers University scientists have performed the first study of how evolution unfolds after invasions change native systems. The experimental invasions — elaborate experiments designed by doctoral student Cara A. Faillace and her adviser, Professor Peter J. Morin — took place in glass jars suitable for savory jam or jelly, with thousands of microscopic organisms on each side.