Revealing Insect Pest Pathways

All plants and animals carry a natural chemical signature shaped by the environment in which they grow and feed. This signature comes from stable isotopes – naturally occurring forms of elements that differ slightly in mass but do not decay over time. The relative abundance of these isotopes varies predictably with factors such as climate, geography, and diet. Stable Isotope Ratio Analysis (SIRA) is a powerful analytical technique based on this principle. It measures these subtle differences in isotope ratios, allowing samples to be “fingerprinted” according to their origin. Over the past several decades, SIRA has been widely used to trace the production and movement of biological materials. This presentation introduces the principles behind stable isotopes and SIRA, and explores how the technique can be applied to identify insect pest pathways. Case studies include house flies and wood-boring beetles, such as the invasive Asian longhorn beetle and Ips typographus.

Katharina Heinrich is an inorganic Chemist, working since 2002 across various food safety and authenticity programs at Fera (the Food and Environment Research Agency). Her specialty is stable isotope ratio mass spectrometry. Her current research uses this technique with a focus on the determination of geographical origin, especially the origin of nuisance or invasive insect pests.

The 1-hour event will consist of a presentation followed by a Q&A with the tutor using questions provided by the live audience. This event is a one-off and will not be repeated. If you can't attend the live event, you don't need to miss out. Book a space and once we've processed the event content after the live event you will be sent a link to the content online.

entoLIVE is delivered by the Biological Recording Company, British Entomological & Natural History Society, Royal Entomological Society and Amateur Entomologists' Society, with support from Buglife, Field Studies Council and NBN Trust.