Table S6.
Island and island group name abbreviations used in maps
| Abbreviation | Island/group | 
| au | Austral | 
| cn | Northern Cook | 
| cs | Southern Cook | 
| gi | Gilbert | 
| hm | Hunther Mathew | 
| ki | Kiribati | 
| ma | Marianas | 
| mg | Mangareva | 
| ml | Malden | 
| mq | Marquesas | 
| mr | Marshall | 
| ni | Niue | 
| no | Nomoi | 
| P | Palau | 
| ph | Phoenix | 
| po | Pohnpei | 
| pt | Pitcairn | 
| r | Rapa Nui | 
| ro | Rongelap | 
| rt | Rotuma | 
| sa | Samoa | 
| so | Sonrosol | 
| th | Tahiti | 
| ti | Tikopia | 
| tk | Tokelau | 
| to | Tonga | 
| tu | Tuvalu | 
| y | Yap | 
| ph | Phoenix | 
| po | Pohnpei | 
| pt | Pitcairn | 
| r | Rapa Nui | 
| ro | Rongelap |