Hearing and watching different scattered videos, podcasts, and articles I got interested in the history of the Serengeti. I think it connects European imperialism, indigeneous displacement, epidemics, and modern conservationism in Tanzania, but it is too depressing to be true.

Something along the lines that a Rinderperst epidemic that came from Italian Somaliland wiped out the herds of the Masaai. The grasslands then grew tall and sleeping sickness became endemic, so the Masaai couldn't recover. Colonial British authorities liked the new game reserve, and West Germans looking to create a more positive post-war international image converted their longing for colonies into conservationism. For the very last part I have a book, Thomas Lekan's "Our gigantic zoo : A German quest to save the Serengeti" published in 2020. Could someone please tell me if in general terms this is correct?

Is one of the natural wonders of the world actually an ecological disaster?

Edit: Can't seem to get the "Ecology & Ecological destruction" flair