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Table 2 Climate variables used in this study. Data were obtained from WORDCLIM (https://www.worldclim.org) at 2.5 min resolution

From: Signatures of local adaptation to climate in natural populations of sweet chestnut (Castanea sativa Mill.) from southern Europe

Abbreviation

Description

MeanAnnT

Mean annual temperature (°C)

MeanMTR

Mean monthly temperature range (°C)

Iso

Isothermality (MeanMTR/ATR) (× 100)

TSeas

Temperature seasonality (standard deviation × 100)

MaxTWM

Maximum temperature of warmest month (°C)

MinTCM

Minimum temperature of coldest month (°C)

ATR

Annual temperature range (MaxTWM–MinTCM)

MeanTWeQ

Mean temperature of wettest quarter (°C)

MeanTDQ

Mean temperature of driest quarter (°C)

MeanTWQ

Mean temperature of warmest quarter (°C)

MeanTCQ

Mean temperature of coldest quarter (°C)

AnnPrec

Annual precipitation (mm)

PrecWeM

Precipitation of wettest month (mm)

PrecDM

Precipitation of driest month (mm)

PrecSeas

Precipitation seasonality (coefficient of variation)

PrecWeQ

Precipitation of wettest quarter (mm)

PrecDQ

Precipitation of driest quarter (mm)

PrecWQ

Precipitation of warmest quarter (mm)

PrecCQ

Precipitation coldest quarter (mm)

AnnMaxT

Annual maximum temperature (°C)

AnnMinT

Annual minimum temperature (°C)