Figure 1.
Geographic distribution of mycetoma cases and Acacia trees across Sudan and South Sudan (crosses and dotted circles, respectively).
Some areas across the region (in white) were not included in some analyses for lack of data on soil characteristics.
Figure 2.
Potential mycetoma distribution based on occurrences in endemic districts.
Potential distributions of mycetoma were based on different environmental variables; models were calibrated in mycetoma-endemic districts, and transferred across all of Sudan and South Sudan. White areas have no soils data, and therefore have no model predictions.
Figure 3.
Visualization of mycetoma ecological niches (i.e., the set of environmental values under which the species can potentially maintain populations) in two-dimensional environmental spaces based on different environmental variables.
The diagram shows the entire environmental availability across Sudan and South Sudan (light gray color), and conditions identified as suitable across Sudan and South Sudan (black color) and across endemic districts (pink).
Table 1.
Partial AUC ratios of mycetoma ecological niche models based on different environmental data sets, showing median.
Figure 4.
Background similarity test of similarity between mycetoma and Acacia ecological niches across Sudan and South Sudan.
Niche overlap values were based on Hellinger's I, and Schoener's D metrics of similarity. Observed values are shown as black line with a blue arrow; null distribution is shown as a histogram.
Figure 5.
Coincidence between ecological niche model predictions based on LST, NDVI, soils, and Acacia (the latter based on LST and NDVI only) with the independent additional case data from the Mycetoma Research Center.