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Figure 1: Panel A shows the proportion of studies with small
sample size (less than ten individuals equipped with biologgers)
registered annually in Movebank. Results show a significantly increasing
trend during the period 2000-2021 (linear model, R2 =
0.72; p <0.001). Panel B compares raptor biologging projects
conducted in the Iberia Peninsula (N=462 between 1978 and 2020) before
and after the year 2000 according to their scientific output: scientific
papers, grey literature or not published in any format. Panel C
represents the number of tracked birds in each raptor biologging project
performed in the Iberia peninsula. Projects with insufficient metadata
were excluded.