Data for: Unprecedented shift in Canadian High Arctic polar bear food web unsettles four millennia of stability

• Main Authors: Routledge, Jennifer, Sonne, Christian, Letcher, Robert, Dietz, Runne, Szpak, Paul
• Format: Dataset
• Language: unknown
• Published: 2022
• Subjects: Polar Bear; Stable isotope data; Lancaster Sound; Arctic; Canada; Canadian Arctic Archipelago; Arctic Archipelago; Phytoplankton; Sea ice
• Online Access: https://zenodo.org/record/7492950; https://doi.org/10.5061/dryad.g1jwstqv4

Stable carbon (δ13C) and nitrogen (δ15N) isotope analysis was conducted on modern and archaeological polar bear bone collagen from the Canadian Arctic Archipelago to investigate potential changes in polar bear foraging ecology over four millennia. Polar bear δ13C values showed a significant decline...