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Fig. 1 | Movement Ecology

Fig. 1

From: Seabirds show foraging site and route fidelity but demonstrate flexibility in response to local information

Fig. 1

We used 3 metrics to compare foraging trips: mean nearest neighbour distance, the distance between trip distal points and the difference in trip bearing. When comparing trips using the mean nearest neighbour distance (NND), we used fix-level NNDs obtained by comparing trips in both directions (i.e., from trip 1 (blue) to trip 2 (red) and from trip 2 to trip 1). We did this to prevent bias in the NND induced by which of the trips is treated as the focal trip, and because the similarity in trip length as well as position is relevant to our research questions. The bias induced by the order in which trips are compared is shown in panels A and B. When selecting the longer trip (panel A) NNDs are biased upwards, whilst when selecting the shorter trip (panel B) NNDs are biased downwards

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Movement Ecology

ISSN: 2051-3933