Comparison between strip sampling and laser ablation methods to infer seasonal movements from intra-tooth strontium isotopes profiles in migratory caribou.

ABSTRACT: Strontium isotopes analysis is a powerful tool in the study of past animal movements, notably the sequential analysis of tooth enamel to reconstruct individual movements in a time-series. Compared to traditional solution analysis, high resolution sampling using laser-ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS) has the potential to reflect fine scale mobility. However, the averaging of the ⁸⁷Sr/⁸⁶Sr intake during the enamel mineralization process may limit fine scale inferences. We compared solution and LA-MC-ICP-MS ⁸⁷Sr/⁸⁶Sr intra-tooth profiles from the second and third molars of 5 caribou from the Western Arctic herd, Alaska. Profiles from both methods showed similar trends, reflecting the seasonal migra

SUBMITTER: Le Corre M 

PROVIDER: S-EPMC9984400 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature