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. 2020 Apr 15;20:21. doi: 10.1186/s12898-020-00288-5

Fig. 3.

Fig. 3

Trophic positions calculated from CSIA-AA of Thin-billed prion feather samples grown during the breeding season (induced feathers) and the non-breeding season (moult). Bulk carbon stable isotope values were used to distinguish polar and temperate moulting grounds (polar for δ13C < − 21‰). Black lines represent individuals migrating to Polar waters while blue lines represent individuals migrating to the Patagonian Shelf or areas influenced by the Brazilian Current