Figure 1: ROC and TSS Score of the models of a. Ganges River Dolphin and
b. Indus Dolphin
The distribution modeling of both the dolphins are very much restricted
to its own basin (Figure 2). Habitat of the species are mostly
concentrated in the mainstem for both the species. The potentially
suitable current habitat of Indus dolphin are concentrated in the
south-western Indus Basin whereas the Ganges River Dolphin are
concentrated in southern and central GBM basin.
The niche overlap is concentrated more in GBM basin than the Indus
basin. In the Indus only the mainstem features low habitat suitability
overlap (falling in 0-250 score range against an index of 0 - 1000
habitat suitability score, higher the score higher the habitat
suitability prediction). The model is a projection and does not actually
represent the actual distribution. The presence of dams and canals which
have been catastrophic to the dolphin population has not been accounted
here.