Probable absences added in unsuitable unsampled areas. A – Absence points added to the An. claviger data in part of Flevoland province. The grey area was sampled and the white area was excluded from the sampling because it was considered unsuitable for mosquitoes. White and black circles indicate negative and positive traps, respectively. White squares indicate the probable absences added in unsuitable unsampled areas. B – Random forest predictions for An. claviger without pseudo-absences. Environmental suitability is depicted using a gradient fill: blue indicates low environmental suitability, red indicates high suitability. C – Random forest predictions for An. claviger with pseudo-absences.