Table 1. Variables used to model the abundance of bluetongue vector Culicoides imicola.

Code	Variable description	Factor
LO	Longitude (m)	Spatial location
LA	Latitude (m)
A	Mean altitude (masl)	Topography	Topoclimate
S	Slope (degrees; calculated from A)
T	Mean temperature in May–October (°C)	Climate
Ts	Temperature seasonality
P	Precipitation in May–October (mm)
Ps	Precipitation seasonality
R	Annual radiation (Kwh m−2 day−1)
Fred	Favourability for red deer	Wild hosts	Hosts
Froe	Favourability for roe deer
Fwild	Favourability for wild boar
DL	Livestock density sheep/goat/cattle (ind/Ha)	Livestock
DC	Cattle density (ind/Ha)
WL	Woodland (%)	Soil
IL	Irrigated land (%)
UL	Sparsely vegetated areas (%)
SL	Scrublands (%)
NDVI	Normalized difference vegetation index (NDVI)
NDVIs	NDVI seasonality
SP	Soil permeability