Table 2 Climatic variables from WorldClim database used for the analysis.

From: Genetic diversity of Norway spruce ecotypes assessed by GBS-derived SNPs

BIO1

Annual mean temperature

BIO4

Temperature seasonality

BIO5

Max temperature of warmest month

BIO6

Min temperature of coldest month

BIO9

Mean temperature of driest quarter

BIO12

Annual precipitation

BIO15

Precipitation seasonality