As part of a long-term elephant study, biologist counted individuals in a population of elephants each spring. I'm on year, there are 18 males and 34 females. Over the following year, each female gave birth, of which 28 survived. Nine elephants died due to predators. A construction project cleared 50 acres of nearby forested land, causing 5 males and 19 females to immigrate into the experimental area. Competition for females increased, resulting in the emigration of 10 males to a new territory in search of mates. What is the growth rate of this population? Explain why.