Rare Earth Great Migrations
8 snips
Sep 19, 2025 
Join insect migration expert Will Hawkes, ICARUS project leader Martin Wikelski, and author David Barrie as they dive into the fascinating world of animal migrations. They discuss how technology is transforming our understanding of these journeys, from butterflies to songbirds. Discover the innovative ICARUS satellite tracking system and how it's changing conservation efforts. They also explore the cultural significance of migration and the threats posed by climate change, highlighting the resilience of animals navigating their perilous paths.
AI Snips
Chapters
Books
Transcript
Episode notes
Butterfly Snowstorms And Sahara Winters
- Will Hawkes recounts seeing butterfly snowstorms in the Pyrenees and strait crossings at Gibraltar.
- Painted ladies and other species migrate thousands of kilometres to overwinter south of the Sahara.
Isotopes Reveal Insect Journeys
- Scientists trace small insect origins using isotopic signatures like deuterium in body water.
- Isotope analysis revealed individual hoverflies and butterflies travelled thousands of kilometres.
Electronic Tags On Insects
- Miniaturised electronic tags now let researchers track large insects across Europe in real time.
- Tagged moths have covered hundreds of kilometres in a single night, revealing fast nocturnal movements.
