Table 1 Description of abiotic descriptor datasets used in analysis along with source URLs.

From: Predicting global invasion risks: a management tool to prevent future introductions

GIS data layer

Short name

Source URL

Annual Mean Temperature

Bio1*

http://www.worldclim.org/bioclim

Mean Diurnal Range (Mean of monthly (max temp - min temp))

Bio2*

http://www.worldclim.org/bioclim

Isothermality (BIO2/BIO7) (*100)

Bio3*

http://www.worldclim.org/bioclim

Temperature Seasonality (standard deviation *100)

Bio4

http://www.worldclim.org/bioclim

Max Temperature of Warmest Month

Bio5

http://www.worldclim.org/bioclim

Min Temperature of Coldest Month

Bio6

http://www.worldclim.org/bioclim

Temperature Annual Range (BIO5-BIO6)

Bio7

http://www.worldclim.org/bioclim

Mean Temperature of Wettest Quarter

Bio8 *

http://www.worldclim.org/bioclim

Mean Temperature of Driest Quarter

Bio9

http://www.worldclim.org/bioclim

Mean Temperature of Warmest Quarter

Bio10

http://www.worldclim.org/bioclim

Mean Temperature of Coldest Quarter

Bio11

http://www.worldclim.org/bioclim

Annual Precipitation

Bio12

http://www.worldclim.org/bioclim

Precipitation of Wettest Month

Bio13

http://www.worldclim.org/bioclim

Precipitation of Driest Month

Bio14*

http://www.worldclim.org/bioclim

Precipitation Seasonality (Coefficient of Variation)

Bio15

http://www.worldclim.org/bioclim

Precipitation of Wettest Quarter

Bio16

http://www.worldclim.org/bioclim

Precipitation of Driest Quarter

Bio17

http://www.worldclim.org/bioclim

Precipitation of Warmest Quarter

Bio18 *

http://www.worldclim.org/bioclim

Precipitation of Coldest Quarter

Bio19 *

http://www.worldclim.org/bioclim

Mean potential incoming solar radiation (8-day average) derived in SAGA GIS

INMSR*

http://www.worldgrids.org

Topsoil pH (H2O) based on the Harmonized Worlds Soil Database

TpH*

http://www.worldgrids.org

SAGA GIS Topographic wetness index

TWIS*

http://www.worldgrids.org

  1. Variables in the column entitled short name marked with an asterisk were retained for modelling procedures.
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