Potential distribution of GAS
Whilst there was nowhere in Kenya that was not suitable for GAS, the extent to which areas were suitable varied significantly across the country. Particularly high areas of suitability were found to the South-East of the country, along the Tana river and the coast near Mombasa (Figure 4). All three survey areas in this current study were modelled as having high suitability for GAS. However, the occurrence can only be realized in presence of rivers or irrigation water. Whilst no GAS were found in Tana River and Kisumu counties, the high suitability of these areas highlights the potential for further widespread distribution of GAS into these areas.
Across the region, the countries with the highest suitability for GAS were Malawi, Madagascar and Uganda. Mozambique, Tanzania and Ethiopia also had areas of high suitability, but these were more concentrated in specific areas of the country. In comparison, suitability across Sudan and Somalia was very low (Figure 5).