Post provided by Takahiro Shimada and Mark G. Meekan

The cover of our February issue shows a flatback sea turtle (Natator depressus) leaving a nesting beach, fitted with an accurate Fastloc‐GPS tag. In this post, Takahiro Shimada and Mark G. Meekan explain how they analysed turtle tracking data to demonstrate their new method for assessing appropriate sample sizes in the article ‘Optimising sample sizes for animal distribution analysis using tracking data’.