Figure 1.

Three different shading techniques were used to cool sand temperatures at mean hawksbill and green turtle nest depth (50 cm). The maximum difference between sand temperatures recorded under the white cotton sheet (a) and corresponding control temperatures was 0.26 °C. The maximum difference between sand temperatures recorded under the white sand (b) and control temperatures was 0.28 °C. The maximum difference between sand temperatures recorded under the palm leaves (c) and control temperatures was 0.40 °C. This pilot experiment ran from 18 June 2012 until 21 June 2012 and provides a conservative estimate as the temperature differences between controls and shading treatments were expected to increase further after these 3 days.