FAME and STAR seabird tracking - Razorbill (Alca torda) (at-sea distributions, Scotland only)
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UK-level utilisation distributions (UD) for Razorbill. UDs are provided in a sequence of 5% contours for each species starting at the 5% utilisation distribution and ending at the 95% utilisation distributions. Within the ecological literature the 95% UD is often used to define the 95% home range of a species and the 50% UD is used to define the 50% core range of a species.