Ambitious targets for the retention — not just formal protection — of nature are urgently needed to conserve biodiversity and to maintain crucial ecosystem services for humanity.
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References
- 1.
Gannon, P. et al. Parks 23.2, 13–26 (2017).
- 2.
Halpern, B. S. et al. Nat. Commun. 6, 7615 (2015).
- 3.
Venter, O. et al. Nat. Commun. 7, 12558 (2016).
- 4.
Maron, M., Rhodes, J. R. & Gibbons, P. Conserv. Lett. 6, 359–367 (2013).
- 5.
Pressey, R. L., Visconti, P. & Ferraro, P. J. Phil. Trans. R. Soc. B 370, 20140280 (2015).
- 6.
Büscher, B. et al. Oryx 51, 407–410 (2016).
- 7.
Dinerstein, E. et al. Bioscience 67, 534–545 (2017).
- 8.
Watson, J. E. M. et al. Conserv. Biol. 30, 243–248 (2016).
- 9.
Wilson, E. O. Half-Earth: Our Planet’s Fight for Life (Liveright, New York, 2016).
- 10.
Ricketts, T. H. et al. Proc. Natl Acad. Sci. USA 102, 18497–18501 (2005).
- 11.
Scheffers, B. R. et al. Science 354, aaf7671 (2016).
- 12.
Ceballos, G., Ehrlich, P. R. & Dirzo, R. Proc. Natl Acad. Sci. USA 114, E6089–E6096 (2017).
- 13.
Watson, J. E. M., Dudley, N., Segan, D. B. & Hockings, M. Nature 515, 67–73 (2014).
- 14.
Soga, M. & Gaston, K. J. Front. Ecol. Environ. 14, 94–101 (2016).
- 15.
Maes, J., Paracchini, M. L., Zulian, G., Dunbar, M. B. & Alkemade, R. Biol. Conserv. 155, 1–12 (2012).
- 16.
Maxwell, S. L. et al. Science 347, aaa1451 (2015).
- 17.
Venter, O. et al. Sci. Data 3, 160067 (2016).
- 18.
Avitabile, V. et al. Glob. Change Biol. 22, 1406–1420 (2016).
- 19.
Jasechko, S. et al. Nature 496, 347–351 (2013).
- 20.
Rockström, J. et al. Nature 461, 472–475 (2009).
- 21.
Watson, J. E. M. & Venter, O. Nature 550, 48–49 (2017).
- 22.
Watson, J. E. M. et al. Nat. Ecol. Evol. 2, 599–610 (2018).
- 23.
Cowie, A. L. et al. Environ. Sci. Policy 79, 25–35 (2018).
- 24.
Watson, J. E. M. et al. Conserv. Lett. 9, 413–421 (2016).
Acknowledgements
We thank S. Butchart, N. Dudley, T. Evans, P. Langhammer and M. Mulligan for feedback on a draft manuscript.
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Maron, M., Simmonds, J.S. & Watson, J.E.M. Bold nature retention targets are essential for the global environment agenda. Nat Ecol Evol 2, 1194–1195 (2018). https://doi.org/10.1038/s41559-018-0595-2
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