Research Article

Winter Latitudinal Population Age-Structure of a Migratory Seagull (Larus fuscus) Differs between Its Two Major Migratory Flyways

Figure 2

Effect of age and population origin in the winter longitudinal distribution of Larus fuscus: (a) population effect, west and east populations longitudinal distribution (log (longitude + 1)) and (b) age effect, immature and adults longitudinal distribution (log (longitude + 1)); line: mean, box: standard error of the mean, and whiskers: standard deviation.
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