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Fig. 6 | BMC Ecology

Fig. 6

From: A quasi-experimental approach using telemetry to assess migration-strategy-specific differences in the decision-making processes at stopover

Fig. 6

Departure directions of common redstarts (grey, n = 14) and European robins (orange, n = 21) from Helgoland during autumn migration. The six common redstarts and the seven European robins leaving Helgoland during the first night after capture are indicated by the black circles encompassing the corresponding filled dots. If departure directions were not uniformly distributed within a group and if the resultant mean vector length was significant, the mean direction of each group was represented by an arrow (thick arrow for all individuals of a species; thin arrow only for individuals departing during the first night after capture), whose length is drawn relative to the radius of the circle (= 1)

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BMC Ecology

ISSN: 1472-6785

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