Tropical rainforests are rich habitats for many species of animals because there are many resources available. There is a lot of water available and a lot of plants. <span> it offers lots of niches for different species. The trees are kind of like skyscrapers, with different species living at different levels and at each level there is a range of species with certain adaptations to allow them to thrive.</span>
Rinderpest disease is caused by a virus that affects hoofed animals, including cattle and wildebeest. In the 1950s, a cattle vaccination program was implemented to eradicate the disease in the Serengeti, and this led to dramatic changes in the populations of wildebeest and other species. The figure shows the number of wildebeest in the Serengeti ecosystem (shaded circles, left y-axis) and the prevalence (i.e., percentage) of individuals infected by rinderpest disease (unshaded squares and triangles, right y-axis) from 1958 to 2003.
