Table 2 Current and predicted primary sex ratios indicate the potential benefits of implementing conservation mitigation strategies.

From: Optimism for mitigation of climate warming impacts for sea turtles through nest shading and relocation

 

Temperature change (°C)

Current

−1

−2

−2.5

January–March

50–56%

21–34%

7–12%

4–7%

June–August

97–100%

91–98%

74–95%

60–90%

 

2090

−1 °C

−2 °C

−2.5 °C

January–March

98–99%

95–97%

83–90%

71–83%

June–August

100%

100%

99–100%

99–100%

  1. Current values are based on incubation temperatures recorded on St Eustatius in 2011-201214 calculated using the relationship between incubation temperature and primary sex ratio7. 2090 values are based on incubation temperatures projected for the year 209014. Two seasonal periods are provided: June–August are peak nesting months; occasional nesting by hawksbills and leatherbacks occurs during January–March (JB, NE, unpublished data). All values are given as female percentages (e.g. 60% indicates 60% females and 40% males in a clutch).
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