the volcanic island of krakatau exploded on august 27, 1883 totally destroying the flora and fauna of the island. biological surveys showed that 14 species of birds have repopulated the island by 1908, 60 by 1920, 64 by 1933. during the fifty years of the census, 71 birds actually became established, but 7 of those again went extinct. use your knowledge of biogeography, explain this pattern of colonization.