ERC Starting Grant · 2025
Unravelling shark ecology across extinction events with novel isotope proxies
In the midst of the “sixths mass extinction event”, shark populations are declining with severe consequences for marine communities and ecosystem resilience. Diet is a key driver of shark evolution and a predictor of their extinction risk. Conservation efforts benefit from understanding past shark trophic ecology and how they coped with previous biotic crises. New analytical achievements in isotope proxy development allow the use of fossil teeth to reconstruct the trophic ecology of pre-Pleistocene animals. Using the novel Zn isotope proxy combined, for the first time, with other innovative trophic proxies (Ca and enameloid-bound N isotopes) on the same fossil and modern tooth samples,…
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