An Ecoregion-Based Approach to Protecting Half the Terrestrial Realm
- PMID: 28608869
- PMCID: PMC5451287
- DOI: 10.1093/biosci/bix014
An Ecoregion-Based Approach to Protecting Half the Terrestrial Realm
Abstract
We assess progress toward the protection of 50% of the terrestrial biosphere to address the species-extinction crisis and conserve a global ecological heritage for future generations. Using a map of Earth's 846 terrestrial ecoregions, we show that 98 ecoregions (12%) exceed Half Protected; 313 ecoregions (37%) fall short of Half Protected but have sufficient unaltered habitat remaining to reach the target; and 207 ecoregions (24%) are in peril, where an average of only 4% of natural habitat remains. We propose a Global Deal for Nature-a companion to the Paris Climate Deal-to promote increased habitat protection and restoration, national- and ecoregion-scale conservation strategies, and the empowerment of indigenous peoples to protect their sovereign lands. The goal of such an accord would be to protect half the terrestrial realm by 2050 to halt the extinction crisis while sustaining human livelihoods.
Keywords: Aichi target 11; Nature Needs Half; ecoregions; global biodiversity conservation strategies; protected areas.
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Comment in
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Ecology: A global plan for nature conservation.Nature. 2017 Oct 5;550(7674):48-49. doi: 10.1038/nature24144. Epub 2017 Sep 27. Nature. 2017. PMID: 28953876 No abstract available.
Comment on
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Mapping Conservation Strategies under a Changing Climate.Bioscience. 2017 Jun 1;67(6):494-497. doi: 10.1093/biosci/bix028. Epub 2017 Apr 5. Bioscience. 2017. PMID: 28584341 Free PMC article. No abstract available.
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