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. 2010 Dec 10;330(6010):1503-9.
doi: 10.1126/science.1194442. Epub 2010 Oct 26.

The Impact of Conservation on the Status of the World's Vertebrates

Michael Hoffmann  1 Craig Hilton-TaylorAriadne AnguloMonika BöhmThomas M BrooksStuart H M ButchartKent E CarpenterJanice ChansonBen CollenNeil A CoxWilliam R T DarwallNicholas K DulvyLucy R HarrisonVineet KatariyaCaroline M PollockSuhel QuaderNadia I RichmanAna S L RodriguesMarcelo F TognelliJean-Christophe ViéJohn M AguiarDavid J AllenGerald R AllenGiovanni AmoriNatalia B AnanjevaFranco AndreonePaul AndrewAida Luz Aquino OrtizJonathan E M BaillieRicardo BaldiBen D BellS D BijuJeremy P BirdPatricia Black-DecimaJ Julian BlancFederico BolañosWilmar Bolivar-GIan J BurfieldJames A BurtonDavid R CapperFernando CastroGianluca CatulloRachel D CavanaghAlan ChanningNing Labbish ChaoAnna M CheneryFederica ChiozzaViola ClausnitzerNigel J CollarLeah C CollettBruce B ColletteClaudia F Cortez FernandezMatthew T CraigMichael J CrosbyNeil CumberlidgeAnnabelle CuttelodAndrew E DerocherArvin C DiesmosJohn S DonaldsonJ W DuckworthGuy DutsonS K DuttaRichard H EmslieAljos FarjonSarah FowlerJörg FreyhofDavid L GarshelisJustin GerlachDavid J GowerTandora D GrantGeoffrey A HammersonRichard B HarrisLawrence R HeaneyS Blair HedgesJean-Marc HeroBaz HughesSyed Ainul HussainJavier Icochea MRobert F IngerNobuo IshiiDjoko T IskandarRichard K B JenkinsYoshio KanekoMaurice KottelatKit M KovacsSergius L KuzminEnrique La MarcaJohn F LamoreuxMichael W N LauEsteban O LavillaKristin LeusRebecca L LewisonGabriela LichtensteinSuzanne R LivingstoneVimoksalehi LukoschekDavid P MallonPhilip J K McGowanAnna McIvorPatricia D MoehlmanSanjay MolurAntonio Muñoz AlonsoJohn A MusickKristin NowellRonald A NussbaumWanda OlechNikolay L OrlovTheodore J PapenfussGabriela Parra-OleaWilliam F PerrinBeth A PolidoroMohammad PourkazemiPaul A RaceyJames S RagleMala RamGalen RathbunRobert P ReynoldsAnders G J RhodinStephen J RichardsLily O RodríguezSantiago R RonCarlo RondininiAnthony B RylandsYvonne Sadovy de MitchesonJonnell C SanciangcoKate L SandersGeorgina Santos-BarreraJan SchipperCaryn Self-SullivanYichuan ShiAlan ShoemakerFrederick T ShortClaudio Sillero-ZubiriDébora L SilvanoKevin G SmithAndrew T SmithJos SnoeksAlison J StattersfieldAndrew J SymesAndrew B TaberBibhab K TalukdarHelen J TempleRob TimminsJoseph A TobiasKaterina TsytsulinaDenis TweddleCarmen UbedaSarah V ValentiPeter Paul van DijkLiza M VeigaAlberto VelosoDavid C WegeMark WilkinsonElizabeth A WilliamsonFeng XieBruce E YoungH Resit AkçakayaLeon BennunTim M BlackburnLuigi BoitaniHolly T DublinGustavo A B da FonsecaClaude GasconThomas E Lacher JrGeorgina M MaceSusan A MainkaJeffery A McNeelyRussell A MittermeierGordon McGregor ReidJon Paul RodriguezAndrew A RosenbergMichael J SamwaysJane SmartBruce A SteinSimon N Stuart
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Free article

The Impact of Conservation on the Status of the World's Vertebrates

Michael Hoffmann et al. Science. .
Free article

Abstract

Using data for 25,780 species categorized on the International Union for Conservation of Nature Red List, we present an assessment of the status of the world's vertebrates. One-fifth of species are classified as Threatened, and we show that this figure is increasing: On average, 52 species of mammals, birds, and amphibians move one category closer to extinction each year. However, this overall pattern conceals the impact of conservation successes, and we show that the rate of deterioration would have been at least one-fifth again as much in the absence of these. Nonetheless, current conservation efforts remain insufficient to offset the main drivers of biodiversity loss in these groups: agricultural expansion, logging, overexploitation, and invasive alien species.

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