At the start of a study, 200 spotted owls lived in an old- growth forest patch in western Oregon. During the next year, a biologist tracking the birds observed that 25 new birds hatched and 5 died. What was the growth rate (r) for this year?

Question

Quizplus · Accepted Answer

The growth rate (r) is calculated as the change in population size divided by the initial population size. The change in population size is 25 (births) - 5 (deaths) = 20. The initial population size is 200. Therefore, r = 20/200 = 0.1.

At the Start of a Study, 200 Spotted Owls Lived