Fig. 4From: Incompletely observed: niche estimation for six frequent European horsefly species (Diptera, Tabanoidea, Tabanidae)Deviation of occurrence of the species compared to available land cover. A positive value of 100% shows that the species occurs twice as often as expected in the respective areas. Conversely, a negative value of 100% indicates an abundance that is only half as high as expectedBack to article page