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Table 1 Description of predictive bioclimatic variables used in this study (downloaded from WorldClim related to four time frames: current, 2050, 2070 and 2090 of Shared Socioeconomic Pathways (SSP2-4.5 scenario)

From: Ecological niche modelling of a critically endangered species Commiphora wightii (Arn.) Bhandari using bioclimatic and non-bioclimatic variables

Code

Environmental variables and their abbreviations

Scaling factor

Unit

BC-1

Annual mean temperature (AMT)

10

°C

BC-2

Mean diurnal range (MeDR)

10

°C

BC-3

Isothermality (BC-2/BC-7) (×100) (Iso)

100

–

BC-4

Temperature seasonality (standard deviation × 100) (TempS)

100

–

BC-5

Max temperature of warmest month (MaTWaM)

10

°C

BC-6

Min temperature of coldest month (MiTCM)

10

°C

BC-7

Temperature annual range (BC-5 – BC-6) (TAR)

10

°C

BC-8

Mean temperature of wettest quarter (MeTWeQ)

10

°C

BC-9

Mean temperature of driest quarter (MeTDQ)

10

°C

BC-10

Mean temperature of warmest quarter (MeTWaQ)

10

°C

BC-11

Mean temperature of coldest quarter (MeTCQ)

10

°C

BC-12

Annual precipitation (AnPr)

1

mm

BC-13

Precipitation of wettest month (PrWeM)

1

mm

BC-14

Precipitation of driest month (PrDM)

100

mm

BC-15

Precipitation seasonality (coefficient of variation) (PrS)

1

Fraction

BC-16

Precipitation of wettest quarter (PrWeQ)

1

mm

BC-17

Precipitation of driest quarter (PrDQ)

1

mm

BC-18

Precipitation of warmest quarter (PrWaQ)

1

mm

BC-19

Precipitation of coldest quarter (PrCQ)

1

mm