Skip to main content

Table 2 Variables, description and code used in the ENFA and MaxEnt niche models

From: Ecological niche modelling to estimate the distribution of Culicoides, potential vectors of bluetongue virus in Senegal

Category of variables

Description

Abbreviation/code

Temperature

Mean annual temperature

Bio01

Mean Diurnal range [mean of monthly (max temp − min temp)]

Bio02

Isothermality (Bio02/Bio07)*100

Bio03

Temperature seasonality (standard deviation * 100)

Bio04

Maximum temperature of warmest month

Bio05

Minimum temperature of coldest month

Bio06

Annual temperature range (Bio05–Bio06)

Bio07

Mean temperature of wettest quarter

Bio08

Mean temperature of driest quarter

Bio09

Mean temperature of warmest quarter

Bio10

Mean temperature of coldest quarter

Bio11

Precipitations

Annual precipitation

Bio12

Precipitation of wettest month

Bio13

Precipitation of driest month

Bio14

Precipitation seasonality (coefficient of variation)

Bio15

Precipitation of wettest quarter

Bio16

Precipitation of driest quarter

Bio17

Precipitation of warmest quarter

Bio18

Precipitation of coldest quarter

Bio19

Altitude

Digital elevation model

Dem

Animal density

Cumulative density of horses, cattle, donkeys, goats and sheep

Livestock

Cattle density

Cattle

Goat density

Goat

Sheep density

Sheep

Horse density

Horse

Donkey density

Donkey