Supplementary Table 3. List of highly threatened predicted eradication beneficiaries. * indicates populations found in both predicted beneficiaries and demonstrated beneficiaries analysis. Island name Country or Territory Common name Scientific name Animal Type IUCN Red List Status Amsterdam French Southern Territories Amsterdam albatross Diomedea Seabird CR amsterdamensis Amsterdam French Southern Territories Northern rockhopper penguin Eudyptes moseleyi Seabird EN Amsterdam French Southern Territories Sooty albatross Phoebetria fusca Seabird EN Amsterdam French Southern Territories Indian yellow-nosed albatross Thalassarche carteri Seabird EN Anacapa East United States Ashy storm-petrel Oceanodroma Seabird EN homochroa Anacapa Middle United States Ashy storm-petrel Oceanodroma Seabird EN homochroa Anacapa West United States Ashy storm-petrel* Oceanodroma Seabird EN homochroa Anatahan Northern Mariana Islands Micronesian megapode Megapodius laperouse Landbird EN Anatahan Northern Mariana Islands Marianas flying fox Pteropus mariannus Mammal EN Anchor New Zealand Yellowhead (mohua) Mohoua ochrocephala Landbird EN Anchor New Zealand Kakapo Strigops habroptila Landbird CR Aride Seychelles Seychelles magpie-robin* Copsychus sechellarum Landbird EN Aride Seychelles Seychelles wolf snake Lycognathophis Reptile EN seychellensis Attu United States Marbled murrelet Brachyramphus Seabird EN marmoratus Baltra Ecuador Galápagos martin Progne modesta Landbird EN Bay Cay Turks And Caicos Islands Turks and Caicos ground Cyclura carinata Reptile CR iguana Bench New Zealand Yellow-eyed penguin Megadyptes antipodes Seabird EN Bernier Australia Banded hare wallaby Lagostrophus fasciatus Mammal EN Bernier Australia Western barred bandicoot Perameles bougainville Mammal EN Big South Cape New Zealand New Zealand greater short- Mystacina robusta Mammal CR tailed bat Breaksea New Zealand Yellowhead (mohua)* Mohoua ochrocephala Landbird EN Browns New Zealand New Zealand dotterel Charadrius obscurus Landbird EN Buck (St. Croix) U.S. Virgin Islands St. Croix ground lizard* Ameiva polops Reptile CR Buck (St. Thomas) U.S. Virgin Islands Lesser Virgin Islands skink Spondylurus Reptile CR semitaeniatus Buck (St. Thomas) U.S. Virgin Islands Virgin Islands bronze skink Spondylurus sloanii Reptile CR Campbell New Zealand Campbell Islands teal* Anas nesiotis Landbird EN Campbell New Zealand Erect-crested penguin Eudyptes sclateri Seabird EN Campbell New Zealand Yellow-eyed penguin Megadyptes antipodes Seabird EN Campbell New Zealand Grey-headed albatross Thalassarche Seabird EN chrysostoma Capella U.S. Virgin Islands Lesser Virgin Islands skink Spondylurus Reptile CR semitaeniatus Capella U.S. Virgin Islands Virgin Islands bronze skink Spondylurus sloanii Reptile CR Santa Catalina Mexico Santa Catalina Island Crotalus catalinensis Reptile CR rattlesnake Santa Catalina Mexico Catalina deer mouse Peromyscus slevini Mammal CR Cayo Diablo Puerto Rico Virgin Islands boa Epicrates monensis Reptile EN Cayo Ratones Puerto Rico Virgin Islands boa Epicrates monensis Reptile EN Chalky New Zealand Orange-fronted/Malherbe’s Cyanoramphus malherbi Landbird CR parakeet* Chalky New Zealand Yellowhead (mohua)* Mohoua ochrocephala Landbird EN Choros Chile Peruvian diving-petrel Pelecanoides garnotii Seabird EN Chumbe Tanzania Aders' duiker Cephalophus adersi Mammal CR Clarión Mexico Clarión Island whip snake Masticophis anthonyi Reptile CR Cochons French Southern Territories Sooty albatross Phoebetria fusca Seabird EN Cocos Guam Mariana skink, Slevin's Emo Emoia slevini Reptile CR skink Cocos Guam Micronesia saw-tailed gecko, Perochirus ateles Reptile EN Dumeril's tropical gecko Codfish New Zealand Campbell Islands teal* Anas nesiotis Landbird EN Codfish New Zealand Yellow-eyed penguin Megadyptes antipodes Seabird EN Codfish New Zealand Kaka Nestor meridionalis Landbird EN Codfish New Zealand Kakapo* Strigops habroptila Landbird CR Conception Seychelles Seychelles white-eye* Zosterops modestus Landbird EN Coronado Sur Mexico Ashy storm-petrel Oceanodroma Seabird EN homochroa Coronados Mexico Coronados deer mouse Peromyscus Mammal CR pseudocrinitus Cousine Seychelles Seychelles magpie-robin* Copsychus sechellarum Landbird EN Cousine Seychelles Seychelles white-eye* Zosterops modestus Landbird EN Curieuse Seychelles Vesey-fitzgerald's burrowing Janetaescincus Reptile EN skink veseyfitzgeraldi Cuvier New Zealand Kaka Nestor meridionalis Landbird EN Dassen South Africa Cape cormorant Phalacrocorax capensis Seabird EN Dassen South Africa Bank cormorant Phalacrocorax Seabird EN neglectus Dassen South Africa African penguin Spheniscus demersus Seabird EN Denis Seychelles Seychelles paradise flycatcher* Terpsiphone corvina Landbird CR Desecheo Puerto Rico Puerto Rican skink Spondylurus nitidus Reptile EN Dragonera Spain Lilford's wall lizard Podarcis lilfordi Reptile EN Dragonera Spain Balearic shearwater Puffinus mauretanicus Seabird CR Ducie Pitcairn Phoenix petrel Pterodroma alba Seabird EN Ducie Pitcairn Henderson petrel Pterodroma atrata Seabird EN Enderby New Zealand Northern royal albatross Diomedea sanfordi Seabird EN Enderby New Zealand Yellow-eyed penguin Megadyptes antipodes Seabird EN Esclata-sang Spain Lilford's wall lizard Podarcis lilfordi Reptile EN Española (Hood) Ecuador Waved albatross Phoebastria irrorata Seabird CR Estell Xapat Spain Lilford's wall lizard Podarcis lilfordi Reptile EN Floreana Ecuador Medium tree-finch Camarhynchus pauper Landbird CR Floreana Ecuador Galápagos martin Progne modesta Landbird EN Floreana Ecuador Galapagos petrel Pterodroma phaeopygia Seabird CR Floreana Ecuador Galapagos penguin Spheniscus mendiculus Seabird EN Fonoll Spain Lilford's wall lizard Podarcis lilfordi Reptile EN Fregate Seychelles Seychelles magpie-robin* Copsychus sechellarum Landbird EN Fregate Seychelles Brauer's burrowing skink Janetaescincus braueri Reptile EN Fregate Seychelles Vesey-fitzgerald's burrowing Janetaescincus Reptile EN skink veseyfitzgeraldi Fregate Seychelles Seychelles house snake Lamprophis geometricus Reptile EN Fregate Seychelles Seychelles wolf snake Lycognathophis Reptile EN seychellensis Fregate Seychelles Seychelles white-eye* Zosterops modestus Landbird EN Grande Terre Seychelles Madagascar sacred ibis Threskiornis bernieri Landbird EN Grande Terre Seychelles Madagascar pond-heron Ardeola idae Landbird EN Great Bird Antigua And Barbuda Antiguan racer Alsophis antiguae Reptile CR Green Antigua And Barbuda Antiguan racer Alsophis antiguae Reptile CR Guadalupe Mexico Guadalupe storm-petrel Oceanodroma Seabird CR macrodactyla Guana British Virgin Islands Anegada ground iguana Cyclura pinguis Reptile CR Guana British Virgin Islands Lesser Virgin Islands skink Spondylurus Reptile CR semitaeniatus Hayman Australia Proserpine rock wallaby* Petrogale persephone Mammal EN Aigrettes Mauritius Mauritius fody Foudia rubra Landbird EN Aigrettes Mauritius Pink pigeon Nesoenas mayeri Landbird EN Aigrettes Mauritius Round Island day gecko Phelsuma guentheri Reptile EN Aigrettes Mauritius Mauritius Olive white-eye Zosterops chloronothus Landbird CR Imperial Spain Lilford's wall lizard Podarcis lilfordi Reptile EN Imperial Spain Balearic shearwater Puffinus mauretanicus Seabird CR Inaccessible Saint Helena Tristan albatross Diomedea dabbenena Seabird CR Inaccessible Saint Helena Northern rockhopper penguin Eudyptes moseleyi Seabird EN Inaccessible Saint Helena Sooty albatross Phoebetria fusca Seabird EN Inaccessible Saint Helena Atlantic petrel Pterodroma incerta Seabird EN Inaccessible Saint Helena Atlantic yellow-nosed albatross Thalassarche Seabird EN chlororhynchos Jarvis United States Minor Outlying Polynesian storm-petrel* Nesofregetta fuliginosa Seabird EN Islands Kapiti New Zealand Kokako* Callaeas cinereus Landbird EN Kapiti New Zealand Kaka Nestor meridionalis Landbird EN Kapiti New Zealand Takahe* Porphyrio hochstetteri Landbird EN Lady Alice New Zealand Kaka Nestor meridionalis Landbird EN (Mauimua) Laysan United States Millerbird Acrocephalus familiaris Landbird CR Laysan United States Laysan duck Anas laysanensis Landbird CR Lehua United States Newell's shearwater Puffinus newelli Seabird EN Little Barrier New Zealand Brown teal Anas chlorotis Landbird EN Little Barrier New Zealand North Island brown kiwi Apteryx mantelli Landbird EN Little Barrier New Zealand Kokako* Callaeas cinereus Landbird EN Little Barrier New Zealand Kaka* Nestor meridionalis Landbird EN Little Barrier New Zealand New Zealand storm-petrel* Fregetta maoriana Seabird CR Little Barrier New Zealand Kakapo* Strigops habroptila Landbird CR Lobos Spain Canarian shrew Crocidura canariensis Mammal EN Long Cay Turks And Caicos Islands Turks and Caicos ground Cyclura carinata Reptile CR iguana Lord Howe Australia Lord Howe woodhen Gallirallus sylvestris Landbird EN Low Cay Bahamas Central Bahamian rock iguana Cyclura rileyi Reptile EN Macquarie Australia Grey-headed albatross Thalassarche Seabird EN chrysostoma Malgrat gran Spain Lilford's wall lizard Podarcis lilfordi Reptile EN Malgrat gran Spain Balearic shearwater Puffinus mauretanicus Seabird CR Malgrat petit Spain Lilford's wall lizard Podarcis lilfordi Reptile EN Malgrat petit Spain Balearic shearwater Puffinus mauretanicus Seabird CR Mana New Zealand Takahe* Porphyrio hochstetteri Landbird EN Mana New Zealand New Zealand shore plover* Thinornis Landbird EN novaeseelandiae Mangere New Zealand Chatham parakeet Cyanoramphus forbesi Landbird EN Mangere New Zealand Chatham oystercatcher Haematopus Landbird EN chathamensis Mangere New Zealand Black robin* Petroica traversi Landbird EN Mangere New Zealand Pitt Island shag Phalacrocorax Seabird EN featherstoni Mangere New Zealand Chatham petrel Pterodroma axillaris Seabird EN Marielas Sur Ecuador Galapagos penguin Spheniscus mendiculus Seabird EN Marion South Africa Sooty albatross Phoebetria fusca Seabird EN Marion South Africa Grey-headed albatross Thalassarche Seabird EN chrysostoma Maud New Zealand Orange-fronted/Malherbe’s Cyanoramphus malherbi Landbird CR parakeet* Maud New Zealand Takahe* Porphyrio hochstetteri Landbird EN Mayor (Tuhua) New Zealand Orange-fronted/Malherbe’s Cyanoramphus malherbi Landbird CR parakeet* Mayor (Tuhua) New Zealand Kaka Nestor meridionalis Landbird EN McKean Kiribati White-throated storm-petrel Nesofregetta fuliginosa Seabird EN Mejía Mexico Angel Island mouse Peromyscus guardia Mammal CR Middle Cay Turks And Caicos Islands Turks and Caicos ground Cyclura carinata Reptile CR iguana Midway Atoll United States Laysan duck Anas laysanensis Landbird CR (Eastern/Spit) Midway Atoll (Sand) United States Laysan duck* Anas laysanensis Landbird CR Monito Puerto Rico Yellow-shouldered blackbird Agelaius xanthomus Landbird EN Monito Puerto Rico Monito gecko Sphaerodactylus Reptile EN micropithecus Monito Puerto Rico Monito skink Spondylurus monitae Reptile CR Montaña Clara Spain Canarian shrew Crocidura canariensis Mammal EN Monuriki Fiji Fiji Crested iguana Brachylophus vitiensis Reptile CR Motuarohia New Zealand New Zealand dotterel Charadrius obscurus Landbird EN Motuihe New Zealand New Zealand dotterel* Charadrius obscurus Landbird EN Motutapu New Zealand New Zealand dotterel Charadrius obscurus Landbird EN Motutapu New Zealand Kaka Nestor meridionalis Landbird EN Motutapu New Zealand Takahe Porphyrio hochstetteri Landbird EN Motutapu New Zealand New Zealand shore plover* Thinornis Landbird EN novaeseelandiae Moutohora New Zealand New Zealand dotterel Charadrius obscurus Landbird EN Ni'ihau United States Hawaiian duck Anas wyvilliana Landbird EN Nonsuch Bermuda Bermuda rock skink Plestiodon longirostris Reptile CR Nonsuch Bermuda Bermuda petrel* Pterodroma cahow Seabird EN North Seychelles Seychelles white-eye Zosterops modestus Landbird EN Nukuwaiata New Zealand Yellowhead (mohua)* Mohoua ochrocephala Landbird EN Nukuwaiata New Zealand Kaka Nestor meridionalis Landbird EN Oeno Pitcairn Phoenix petrel Pterodroma alba Seabird EN Partridge Australia Forty-spotted pardalote Pardalotus Landbird EN quadragintus Passage North (Inner) New Zealand Yellowhead (mohua) Mohoua ochrocephala Landbird EN Pinzón Ecuador Galápagos Martin Progne modesta Landbird EN Pitcairn Pitcairn Pitcairn reed-warbler Acrocephalus vaughani Landbird EN Plata Ecuador Waved albatross Phoebastria irrorata Seabird CR Praslin Saint Lucia Rough-scaled worm lizard Gymnophthalmus pleii Reptile EN Putauhina New Zealand New Zealand greater short- Mystacina robusta Mammal CR tailed bat Rabbit Antigua And Barbuda Antiguan racer Alsophis antiguae Reptile CR Rangitoto New Zealand New Zealand dotterel Charadrius obscurus Landbird EN Rangitoto New Zealand Kaka Nestor meridionalis Landbird EN Rangitoto New Zealand Shore plover Thinornis Landbird EN novaeseelandiae Rarotoka (Centre) New Zealand Yellowhead (mohua) Mohoua ochrocephala Landbird EN Rarotoka (Centre) New Zealand Takahe* Porphyrio hochstetteri Landbird EN Rawaki Kiribati Polynesian storm-petrel Nesofregetta fuliginosa Seabird EN Rawaki Kiribati Phoenix petrel Pterodroma alba Seabird EN Red Mercury New Zealand Kaka Nestor meridionalis Landbird EN (Whakau) Redona Spain Lilford's wall lizard Podarcis lilfordi Reptile EN Redona Spain Balearic shearwater Puffinus mauretanicus Seabird CR Rose New Zealand Yellow-eyed penguin Megadyptes antipodes Seabird EN Round Mauritius Round Island boa Casarea dussumieri Reptile EN Round Mauritius Round Island day gecko Phelsuma guentheri Reptile EN Saba U.S. Virgin Islands Virgin Islands bronze skink Spondylurus sloanii Reptile CR Saint-Paul French Southern Territories Northern rockhopper penguin Eudyptes moseleyi Seabird EN Saint-Paul French Southern Territories Sooty albatross Phoebetria fusca Seabird EN Saint-Paul French Southern Territories Indian yellow-nosed albatross Thalassarche carteri Seabird EN San Jerónimo Mexico Baja California legless lizard Anniella geronimensis Reptile EN San Martín Mexico Baja California legless lizard Anniella geronimensis Reptile EN San Miguel United States Ashy storm-petrel Oceanodroma Seabird EN homochroa Santa Barbara United States Ashy storm-petrel Oceanodroma Seabird EN homochroa Santa Cruz United States Ashy storm-petrel Oceanodroma Seabird EN homochroa Santa Fé Ecuador Galápagos martin Progne modesta Landbird EN Santiago (San Ecuador Galápagos martin Progne modesta Landbird EN Salvador) Santiago (San Ecuador Galapagos petrel Pterodroma phaeopygia Seabird CR Salvador) Santiago (San Ecuador Galapagos penguin Spheniscus mendiculus Seabird EN Salvador) Sarigan Northern Mariana Islands Golden white-eye Cleptornis marchei Landbird CR Sarigan Northern Mariana Islands Mariana skink, Slevin's emo Emoia slevini Reptile CR skink* Sarigan Northern Mariana Islands Micronesian megapode Megapodius laperouse Landbird EN Sarigan Northern Mariana Islands Mariana fruit-dove Ptilinopus roseicapilla Landbird EN Sarigan Northern Mariana Islands Bridled white-eye Zosterops conspicillatus Landbird EN Seymour Norte Ecuador Galápagos martin Progne modesta Landbird EN Socorro Mexico Socorro mockingbird Mimus graysoni Landbird CR Socorro Mexico Townsend's shearwater Puffinus auricularis Seabird CR Socorro Mexico Socorro Island tree lizard Urosaurus auriculatus Reptile EN South East New Zealand Chatham oystercatcher Haematopus Landbird EN (Rangatira) chathamensis South East New Zealand Black robin* Petroica traversi Landbird EN (Rangatira) South East New Zealand Pitt Island shag Phalacrocorax Seabird EN (Rangatira) featherstoni South East New Zealand Chatham petrel Pterodroma axillaris Seabird EN (Rangatira) South East New Zealand Shore plover Thinornis Landbird EN (Rangatira) novaeseelandiae Southeast Farallon United States Ashy storm-petrel Oceanodroma Seabird EN homochroa Stanley (Kawhitu) New Zealand Kaka Nestor meridionalis Landbird EN Stevens Cay U.S. Virgin Islands Virgin Islands boa Epicrates monensis Reptile EN Taranga (Hen) New Zealand Kaka Nestor meridionalis Landbird EN Tiritiri Matangi New Zealand Brown teal* Anas chlorotis Landbird EN Tiritiri Matangi New Zealand Kokako* Callaeas cinereus Landbird EN Tiritiri Matangi New Zealand New Zealand dotterel* Charadrius obscurus Landbird EN Tiritiri Matangi New Zealand Takahe Porphyrio hochstetteri Landbird EN Todos Santos Sur Mexico Todos Santos Island kingsnake Lampropeltis herrerae Reptile CR Todos Santos Sur Mexico Ashy storm-petrel Oceanodroma Seabird EN homochroa Tristan da Cunha Saint Helena Northern rockhopper penguin Eudyptes moseleyi Seabird EN Tristan da Cunha Saint Helena Sooty albatross Phoebetria fusca Seabird EN Tristan da Cunha Saint Helena Atlantic petrel Pterodroma incerta Seabird EN Tristan da Cunha Saint Helena Atlantic yellow-nosed albatross Thalassarche Seabird EN chlororhynchos Urupukapuka New Zealand New Zealand dotterel Charadrius obscurus Landbird EN Viwa (Verata) Fiji Fiji Banded iguana Brachylophus bulabula Reptile EN Waewaetorea New Zealand New Zealand dotterel Charadrius obscurus Landbird EN Whatupuke New Zealand Kaka Nestor meridionalis Landbird EN (Mauiroto) White (Sandy) Cay Bahamas Central Bahamian rock iguana Cyclura rileyi Reptile EN Yadua Taba Fiji Fiji crested iguana Brachylophus vitiensis Reptile CR Yadua Taba Fiji Viti barred treeskink, Gibbons' Emoia trossula Reptile EN Emo skink York Antigua And Barbuda Antiguan racer Alsophis antiguae Reptile CR