Data from: Hitting the moving target: modelling ontogenetic shifts with stable isotopes reveals the importance of isotopic turnover

Eric Hertz, Marc Trudel, Rana El-Sabaawi, Strahan Tucker, John F. Dower, Terry D. Beacham, Andrew M. Edwards & Asit Mazumder
Ontogenetic niche shifts are widely prevalent in nature and are important in shaping the structure and dynamics of ecosystems. Stable isotope analysis is a powerful tool to assess these shifts, with δ15N providing a measure of trophic level and δ13C a measure of energy source. Previous applications of stable isotopes to study ontogenetic niche shifts have not considered the appreciable time-lag between diet and consumer tissue associated with isotopic turnover. These time-lags introduce significant complexity...
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