From individual to population level: Temperature and snow cover modulate fledging success through breeding phenology in greylag geese (Anser anser).

Snow cover was highly variable, but did not show a significant trend over time (parametric coefficients: estimate 7.42 ± 0.93, P < 0.001; smooth term: F (25,29) = 2.72, P = 0.062; R 2 = 0.217; Fig. 1 b).

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