Regional Ancestry Breakdown
Vanuatu
Austronesian (Lapita):
100%
Papuan Second Wave:
0%
Austronesian / First Remote Oceanic
Papuan Ancestry
500-Year Admixture Lag
At 2,700 BP: Papuan-related gene flow begins surging across Vanuatu, while Fiji remains genetically shielded with nearly pure First Remote Oceanic ancestry for an additional half-millennium.
Excavation Ancient DNA Profiles
Teouma (Vanuatu)
Sigatoka (Fiji)
Bourewa (Fiji)
Talasiu (Tonga)
Site: Teouma Cemetery
Island: Efate, Vanuatu
14C Age: 2,950 – 2,700 cal BP
qpAdm Profile: 98.4% Lapita / 1.6% Papuan
f4-Stat Affinity: Z = 14.8 (Near-pure FRO)
Counterfactual Maritime Barrier
Adjusting friction simulates trade-wind shifts, maritime navigation barriers, and population resistance across the 800km Vanuatu-Fiji oceanic gap.