Fig. S1 Diel temperature variation at four microsites.

Fig. S2 Diurnal and nocturnal temperature variation at four microsites.

Fig. S3 Frequency of occurrence of six relative humidity categories during daytime and night-time in the understorey of the study site.

Fig. S4 Relative events of hourly rainfall during the dry season and the rainy season in Nouragues National Park.

Notes S1 Calculation of dew formation at the lichen’s surface.

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