Raw Data for analysis that entailed looking at the detection distances when calculated using atmospheric conditions of flight paths recorded in the desert at Wondergat cave (Northern Province, South Africa) with a) average desert frequency with either average SL (pulse frequency and source level - Stilz and Schnitzler 2012) from the desert and fynbos biome b) average desert SL with average frequency from the desert and fynbos biome c) the average frequency and SL for each biome.