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How many bird and mammal extinctions has recent conservation action prevented?
Conservation Letters ( IF 7.7 ) Pub Date : 2020-09-09 , DOI: 10.1111/conl.12762
Friederike C. Bolam 1 , Louise Mair 1 , Marco Angelico 2 , Thomas M. Brooks 3, 4, 5 , Mark Burgman 6 , Claudia Hermes 7 , Michael Hoffmann 8 , Rob W. Martin 7 , Philip J.K. McGowan 1 , Ana S.L. Rodrigues 9 , Carlo Rondinini 2 , James R.S. Westrip 10 , Hannah Wheatley 7 , Yuliana Bedolla‐Guzmán 11 , Javier Calzada 12 , Matthew F. Child 13, 14 , Peter A. Cranswick 15 , Christopher R. Dickman 16, 17 , Birgit Fessl 18 , Diana O. Fisher 19 , Stephen T. Garnett 17, 20 , Jim J. Groombridge 21 , Christopher N. Johnson 22 , Rosalind J. Kennerley 23 , Sarah R.B. King 24 , John F. Lamoreux 25 , Alexander C. Lees 26, 27 , Luc Lens 28 , Simon P. Mahood 20, 29 , David P. Mallon 26, 30 , Erik Meijaard 21, 31 , Federico Méndez‐Sánchez 11, 32 , Alexandre Reis Percequillo 33 , Tracey J. Regan 34, 35 , Luis Miguel Renjifo 36 , Malin C. Rivers 37 , Nicolette S. Roach 38, 39 , Lizanne Roxburgh 40 , Roger J. Safford 7 , Paul Salaman 41 , Tom Squires 26 , Ella Vázquez‐Domínguez 42 , Piero Visconti 43, 44 , John C.Z. Woinarski 17, 20 , Richard P. Young 23 , Stuart H.M. Butchart 7, 45
Affiliation  

Aichi Target 12 of the Convention on Biological Diversity (CBD) contains the aim to ‘prevent extinctions of known threatened species’. To measure the degree to which this was achieved, we used expert elicitation to estimate the number of bird and mammal species whose extinctions were prevented by conservation action in 1993–2020 (the lifetime of the CBD) and 2010–2020 (the timing of Aichi Target 12). We found that conservation action prevented 21–32 bird and 7–16 mammal extinctions since 1993, and 9–18 bird and two to seven mammal extinctions since 2010. Many remain highly threatened and may still become extinct. Considering that 10 bird and five mammal species did go extinct (or are strongly suspected to) since 1993, extinction rates would have been 2.9–4.2 times greater without conservation action. While policy commitments have fostered significant conservation achievements, future biodiversity action needs to be scaled up to avert additional extinctions.

中文翻译:

最近阻止了多少鸟类和哺乳动物的灭绝行动?

《生物多样性公约》(CBD)的爱知目标12旨在“预防已知受威胁物种的灭绝”。为了衡量实现这一目标的程度,我们利用专家启发估计了1993-2020年(《生物多样性公约》的使用期限)和2010-2020年(爱知时期)通过保护行动防止灭绝的鸟类和哺乳动物的数量。目标12)。我们发现,保护行动阻止了自1993年以来的21–32只鸟类和7–16种哺乳动物的灭绝,以及自2010年以来的9–18种鸟类和2至7种哺乳动物的灭绝。许多物种仍处于高度威胁之中,甚至可能灭绝。考虑到自1993年以来10种鸟类和5种哺乳动物确实灭绝(或被强烈怀疑是灭绝),如果不采取保护行动,灭绝率将增加2.9-4.2倍。
更新日期:2020-09-09
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