Figure 2.

Map of Polynesia. Line A identifies delineation between Near and Remote Oceania and B shows the Polynesian Triangle. Bold arrows show a likely sequence of colonization and contact in prehistoric Polynesia. These sequences are based on interpretations from the mtDNA phylogenies of R. exulans. Samples included in the analyses were collected from Fiji (n = 1 from Waya), Samoa (n = 1 from Manua), the Cook Islands [n = 13 from Rarotonga (S. Cooks 12), from Aitutaki (S. Cooks 2, 3, 4, 6, and 11), from Takutea (S. Cooks 7, 9, and 10), and from Atiu (S. Cooks 1, 5, 8, and 13)], the Society Islands [n = 23 from Tahiti (Societies 6, 9, 11, 13, 18, and 21), from Raiatea (Societies 4, 5, 7, 8, 14, 15, 16, 17, 19, 20, and 22), and from Huahine (Societies 1, 2, 3, 10, 12, and 23)], the Marquesas (n = 7 from UaHuka), Hawaii [n = 5 from Hawaii (Hawaii 1–3 and 5) and from Oahu (Hawaii 4)], the Kermadecs (n = 4 from Raoul), New Zealand [n = 34 from off shore islands of the east coast of the North Island (NZ 7–10, 12–24, 28, and 34), from Kapiti Island off the west Coast of the North Island (NZ 2, 3, 11, 26, 27, and 32), from Marlborough Sounds (NZ 1, 25, 29, 30, 31, and 33), and from Stewart Island (NZ 4, 5, and 6)], and the Chatham Islands (n = 5 from Chatham Is.). The sample from Halmahera (Moluccas Islands) was used as an outgroup to root the tree.