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Fig. 4 | BMC Ecology

Fig. 4

From: Compound-specific stable isotope analyses in Falkland Islands seabirds reveal seasonal changes in trophic positions

Fig. 4

Trophic positions calculated from CSIA-AA of seabird feather samples grown during the non-breeding season (moult) in recent and historical samples. Bulk carbon stable isotope values were used to distinguish polar and temperate moulting grounds (polar for δ13C < − 21‰) in Thin-billed prions. Recent and historical samples were compared using t-tests, and significance levels are marked with asterisks (** for P < 0.01, and *** for P < 0.001)

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BMC Ecology

ISSN: 1472-6785

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