Figure 4
From: Arctic climate change and pollution impact little auk foraging and fitness across a decade

Temporal variation of adult δ15N and δ13C values (‰) over the study period. (a) δ15N, linear model, n = 167, R2 = 0.32, p < 0.001, y = −138 + 0.07x. (b) δ13C, linear model, n = 167, R2 = 0.36, p < 0.001, y = 96.4 − 0.06x.