Webinar | Analysis of narwhal tusks reveals lifelong feeding ecology and mercury exposure
Title: Analysis of narwhal tusks reveals lifelong feeding ecology and mercury exposure
Presenter: Jean-Pierre Desforges; PDF, McGill
Date: Wednesday, September 29, 10:00 am
Format: 45-minute webinar, with questions and discussion
Summary: Climate change and mercury are two of the greatest threats to Arctic marine predators like narwhals and beluga. Not only do these stressors exert individual impacts, but they also interact to cause often unpredictable consequences. Long-term datasets and access to relevant biological tissues and associated biomarkers are rare in Arctic species and thus hinder our understanding of stressor effects. In this webinar I will discuss the use of narwhal tusk and beluga teeth as unique and valuable archives of historical data on mercury and climate change.