8. a) (3 pts) In 1803 approximately 30 sheep were introduced to the island of Tasmania. After a period of exponential growth their population recruitment rate declined and their population continued to hover around 1.7 million individuals. After a disease outbreak caused by the bacterium Mycoplasma ovis, the population declined to 1.2 million. If the instantaneous rate of population increase during that year was 28,000 individuals, what is the sheeps intrinsic rate of natural increase?.