Due to the large number of human tourists and a declining food supply, the blue-footed booby population in the Galapagos Islands is decreasing with a half life of about 13.7 years.
a. What fraction of the booby population will remain in 10 years?
b. If there are currently only 6,500 blue-footed boobies alive, how many would we expect there to be in 2047?
