POPULAtION ChANgE??

Question

How does population change due to Diseases????

Answer 1

look at it in a simple way:

DISEASE --> DEATH --> LESSER LIVING --> DECREASE of population.

when diseases are too wide spread, it might not be possible to supply everyone with medication, hence disease will spread even more and people eventually die.

Answer 2

The best example is the effect the Black Death had on the population of Europe and Asia. Starting in Europe in the early 1300's the plague killed millions of people. Estimates in some areas are that 50 to 60 of an entire population died. In London in 1665, it might have been even higher. Imagine the effect that would have had on the economies of the time.

Another good example is the effect of diseases that Europeans brought to the New World on the aboriginal populations. Whole civilizations were effectively wiped out.

Answer 3

There have been epidemics that kill large numbers of people like the Spanish flue at the end of WWI but people seem to becoming more infertile which is another way that population could be controlled. Unfortunately we seem to be finding ways around that like IVF but maybe nature is trying to tell us something.

Answer 4

Well, plagues and such are one sure way of changing the population repartition and density. Also, it would help for the natural selection of the strongest...yes, that happen with humans too.