Table 3:

Temperature thresholds used for mapping four models of thermal suitability.

Model	Range where S(T) > 0.001 (°C)	Range where S(T) > 0.5 (°C)
Constant (1)	15.8 – 35.8	21.1 – 31.9
Empirical Fluctuating (2)	15.8 – 33.1	20.3 – 30.2
Trait-level RS - all traits (4)	10.9 – 40.1	21.2 – 31.1
$S(T)$-level RS (5)	9.3 – 41.1	18.7 – 34.7

Four versions of the model for thermal suitability, $S(T)$, parameterized with different trait TPCs or calculated using rate summation (RS): trait TPCs fit from empirical data under constant temperatures (model 1: “Constant”), trait TPCs fit from empirical data under fluctuating temperatures (model 2: “Empirical Fluctuating”), RS at the trait-level for all traits (model 4: “Trait-level RS - all traits”), or RS directly on the TPC for suitability, $S(T)$, parameterised under constant temperatures (model 5: “$S(T)$-level RS”). All fluctuating models were for Diurnal temperature ranges (DTR) = 12°C only. Units are in °C.