Functional connectivity of the world’s protected areas

Author:

Brennan A.1234ORCID,Naidoo R.24ORCID,Greenstreet L.25ORCID,Mehrabi Z.67,Ramankutty N.28ORCID,Kremen C.1239ORCID

Affiliation:

1. Biodiversity Research Centre, University of British Columbia, Vancouver, BC, Canada.

2. Institute for Resources, Environment and Sustainability, University of British Columbia, Vancouver, BC, Canada.

3. Interdisciplinary Biodiversity Solutions Program, University of British Columbia, Vancouver, BC, Canada.

4. World Wildlife Fund, Washington, DC, USA.

5. Department of Computer Science, Cornell University, Ithaca, NY, USA.

6. Department of Environmental Studies, University of Colorado Boulder, Boulder, CO, USA.

7. Mortenson Center in Global Engineering, University of Colorado Boulder, Boulder, CO, USA.

8. School of Public Policy and Global Affairs, University of British Columbia, Vancouver, BC, Canada.

9. Department of Zoology, University of British Columbia, Vancouver, BC, Canada.

Abstract

Global policies call for connecting protected areas (PAs) to conserve the flow of animals and genes across changing landscapes, yet whether global PA networks currently support animal movement—and where connectivity conservation is most critical—remain largely unknown. In this study, we map the functional connectivity of the world’s terrestrial PAs and quantify national PA connectivity through the lens of moving mammals. We find that mitigating the human footprint may improve connectivity more than adding new PAs, although both strategies together maximize benefits. The most globally important areas of concentrated mammal movement remain unprotected, with 71% of these overlapping with global biodiversity priority areas and 6% occurring on land with moderate to high human modification. Conservation and restoration of critical connectivity areas could safeguard PA connectivity while supporting other global conservation priorities.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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