Invasive alien species are a major threat to native insular species. Eradicating invasive mammals from islands is a feasible and proven approach to prevent biodiversity loss. We developed a conceptual framework to identify globally important islands for invasive mammal eradications to prevent imminent extinctions of highly threatened species using biogeographic and technical factors, plus a novel approach to consider socio-political feasibility. We applied this framework using a comprehensive dataset describing the distribution of 1,184 highly threatened native vertebrate species (i. e. those listed as Critically Endangered or Endangered on the IUCN Red List) and 184 non-native mammals on 1,279 islands worldwide. Based on extinction risk, irreplaceability, severity of impact from invasive species, and technical feasibility of eradication, we identified and ranked 292 of the most important islands where eradicating invasive mammals would benefit highly threatened vertebrates. When socio-political feasibility was considered, we identified 169 of these islands where eradication planning or operation could be initiated by 2020 or 2030 and would improve the survival prospects of 9.4% of the Earth's most highly threatened terrestrial insular vertebrates (111 of 1,184 species). Of these, 107 islands were in 34 countries and territories and could have eradication projects initiated by 2020. Concentrating efforts to eradicate invasive mammals on these 107 islands would benefit 151 populations of 80 highly threatened vertebrates and make a major contribution towards achieving global conservation targets adopted by the world's nations.
1.Isl Conservat, Delaware Ave, Santa Cruz, CA 95060 USA 2.Univ Calif Santa Cruz, Ecol & Evolutionary Biol Dept, Santa Cruz, CA 95064 USA 3.Royal Soc Protect Birds, Sandy, Beds, England 4.Amer Bird Conservancy, The Plains, VA USA 5.Inst Environm Protect & Res ISPRA, Via V Brancati, Rome, Italy 6.Chair IUCN Invas Species Specialist Grp, Via V Brancati, Rome, Italy 7.BirdLife Int, Cambridge, England 8.Nat Hist Museum, Dept Life Sci, Bird Grp, Tring, Herts, England 9.Nature Conservancy, Nuuanu Ave, Honolulu, HI USA 10.Grp Ecol & Conservac Islas, AC Av Moctezuma, Ensenada, BC, Mexico 11.Kauai Endangered Seabird Recovery Project, Kauai, HI USA 12.IUCN Iguana Specialist Grp, John G Shedd Aquarium, S Lake Shore Dr, Chicago, IL USA 13.Natl Taiwan Univ, Sch Forestry & Resource Conservat, Taipei, Taiwan 14.Bermuda Zool Soc, Hamilton, Bermuda 15.Univ Seychelles, Isl Biodivers & Conservat Ctr, Anse Royale, Mahe, Seychelles 16.Nat Conservat Consultants Ltd, Gytheiou Chalandri, Greece 17.Univ Auckland, Sch Biol Sci, Auckland, New Zealand 18.Div Fish & Wildlife, Lower Base, CM USA 19.Avignon Univ, Aix Marseille Univ, Inst Mediterraneen Biodivers & Ecol Marine & Cont, CNRS,IRD,Ctr IRD Noumea, Noumea, New Caledonia 20.Rinaldi Ave, The Pines Beach, North Canterbur, New Zealand 21.Isl Endem Fdn, Boqueron, PR USA 22.Palau Conservat Soc, Bai Ra Maibrel, Koror, Palau 23.Crit Ecosyst Partnership Fund, Crystal Dr, Arlington, VA USA 24.Univ Cambridge, Dept Zool, Cambridge, England 25.Univ Balearic Isl, BIOGEOMED Grp, Cra, Valdemossa Bale, Spain 26.Seychelles Isl Fdn, La Ciotat Bldg, Victoria, Mahe, Seychelles 27.Univ Exeter, Ctr Ecol & Conservat, Cornwall Campus, Penryn, England 28.Soc Portuguesa Estudo Ayes, Ave Columbano Bordalo Pinheiro, Lisbon, Portugal 29.NEMO Srl, Piazza DAzeglio, Florence, Italy 30.Kennington Roslyn Bush Rd, Invercargill, New Zealand 31.Oikonos Ecosyst Knowledge, Kailua, HI USA 32.Univ Cape Town, FitzPatrick Inst African Ornithol, Rondebosch, South Africa 33.Soc Cubana Zool, Havana, Cuba 34.Stoney Creek Rd, Speewah, Qld, Australia 35.US Geol Survey, Western Ecol Res Ctr, San Diego, CA USA 36.Parklands, BirdLife South Africa, Johannesburg, South Africa 37.IUCN Iguana Specialist Grp, Ft Worth Zoo, Ft Worth, TX USA 38.BirdLife Pacific, MacGregor Rd, Suva, Fiji 39.Fonderies Royales, Ligue Protect Oiseaux, 8 Rue Docteur Pujos, Rochefort, France 40.Terres Austr & Antarct Francaises, Rue Gabriel Dejean, St Pierre De La Reun, France
Recommended Citation:
Holmes, Nick D.,Spatz, Dena R.,Oppel, Steffen,et al. Globally important islands where eradicating invasive mammals will benefit highly threatened vertebrates[J]. PLOS ONE,2019-01-01,14(3)