I can't tell what article this map is associated with. But it appears to be a summary of when various places on earth were first settled by each homo. Australia was first settled by the Aborigines about 50k years ago, entering via Southeast Asia. Much later, New Zealand was first settled by the Maori 800 years ago, entering via Taiwan, Southeast Asia (after the Aborigines' ancestors), and the Pacific Islands, though these migrations aren't shown on this very simple map.