Answer:
60,000 buffalo
Explanation:
This question is incomplete, I attached the options.
35,000
55,000
60,000
65,000
Buffalo numbers in the study area were estimated using total aerial photographic counts, the estimation was made it in Mara Serengeti ecosystem (25 000 km2), buffalos have other problems apart of bubonic plague, like climate change, competition, disease, food limitation, land-use change, predation.
Assume the population growth of Serengeti buffalo graph, before the rinderpest there was a capacity of 50,000 buffalos, but there was a bubonic plague epidemic, then two years and half, only there were a capacity less than 30,000.
After the virus was eliminated the graph show growth, in 6 years there were more than 60,000 buffalos, in more eleven-year, there were exactly 60,000 buffalos.
Survivorship curve = so, first of all, it's a curve, as in a graph.
It describes "survivorship" - the rate of survival, in other words: out of 100 organisms that are born, how many survive. This rate is different among species, for example, most humans live out to most of their life span, and almost all can survive well beyond a reproductive age.
However, in frogs for example, many many individuals are born, but only few can survive to adulthood: most die very young, before reproductive age.
So if you hear about a new species: let's say dogs, and you want to know how long they would live, you would look at their sirvivorship curve (and in some breeds of dogs, those that are likely not to be in shelters, but in homes, the survivorship curve would be similar as in humans: almost all individuals born can live long.