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Table 3 CTEs and sex ratios predicted for field nests based on measured and estimated sand temperatures

From: Models of primary sex ratios at a major flatback turtle rookery show an anomalous masculinising trend

Nest IDa Sex of embryos sampled from nest Range of Constant Temperature Equivalents (CTEs, °C) based on: Predicted sex ratio based on:
No F No M Measured nest temps Modelled sand temps Nest CTEs Weather station sand CTEs AWAP sand CTEs
Weather station AWAP
2 11 4 30.3–30.3 29.9–30.0 30.1–30.5 X X X
3 12 3 30.3–30.4 29.8–30.1 30.0–30.6 X X X
5 8 6 30.4–30.6 30.5–30.7 31.3–31.8 X X F
12 12 0 29.9–30.3 30.2–30.3 30.0–31.1 X X X
13 9 3 30.6–31.0 30.4–30.4 31.4–31.5 X X F
  1. Sand temperature models were driven either by weather station data or the AWAP climate data, and CTEs in all instances were calculated from temperatures during the thermosensitive period. Predicted sex ratios are classified as female (F; <5% males), mixed (X; 5–95% males) or male (M; >95% males). Classifications in italics indicate correct assignments based on the sexes of embryos sampled from each nest.
  2. aThis subset of nests was not used for fitting the TSD function.