Ecological niche modelling of Hemipteran insects in Cameroon; the paradox of a vector-borne transmission for Mycobacterium ulcerans, the causative agent of Buruli ulcer

Table 1 Environmental variables used in ecological niche modelling

Variable	Units	Original resolution	Source
Wetness index	m²	15 arc-sec (approx 450 m²)	SRTM
Flow accumulation	m²	15 arc-sec (approx 450 m²)	SRTM
Precipitation in wettest season	millimeter	30 arc-sec (approx 1 km²)	Bioclim 13
Precipitation in driest season	millimeter	30 arc-sec (approx 1 km²)	Bioclim 14
GLC-AP	Unitless	300 m²	GLC 2009
GLC-5 K	Unitless	300 m²	GLC 2009

All data were resampled to a spatial resolution of 0.004 decimal degrees (~300 m²) for use in Maxent. Resampling used resample() in the library ‘raster’ of the software R.

ISSN: 1476-072X