Research ArticleAPPLIED ECOLOGY

Cost-effective priorities for the expansion of global terrestrial protected areas: Setting post-2020 global and national targets

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Science Advances  09 Sep 2020:
Vol. 6, no. 37, eabc3436
DOI: 10.1126/sciadv.abc3436
  • Fig. 1 Global distribution of CPZs and CEZs.

    (A) distribution of CPZs. (B) distribution of CEZs. Charts on the left show the latitudinal distribution of CPZs and CEZs, in which polylines represent the total land area at the corresponding latitude.

  • Fig. 2 Global distribution of CEZs and existing PAs.

    CEZs uncovered by existing PAs (red) are considered highly feasible for PA expansion. The darker the color, the higher the priority.

  • Fig. 3 Maps of countries with different percent range protected under four scenarios.

    (A) existing PAs, (B) conservative target, (C) moderate target, and (D) ambitious target. All countries and regions (excluding Antarctica and Greenland) are considered. Note that, although the WDPA data are the best available, they may not include all PAs, which will cause underestimates of the existing PAs in certain countries.

  • Table 1 Numbers of countries with different percent range protected under four scenarios.

    The total number and proportion of 195 CBD parties (not including the European Union) are divided into five categories according to percent range protected.

    Percent range protectedScenarios
    Existing PAsConservative targetModerate targetAmbitious target
    [0%,17%)109 (55.9%)76 (39.0%)64 (32.8%)42 (21.5%)
    [17%,25%)42 (21.5%)43 (22.1%)32(16.4%)17 (8.7%)
    [25%,30%)17 (8.7%)13 (6.7%)23 (11.8%)31 (15.9%)
    [30%,50%)24 (12.3%)49 (25.1%)48 (24.6%)57 (29.2%)
    [50%,100%]3 (1.5%)14 (7.2%)28 (14.4%)48 (24.6%)

Supplementary Materials

  • Supplementary Materials

    Cost-effective priorities for the expansion of global terrestrial protected areas: Setting post-2020 global and national targets

    Rui Yang, Yue Cao, Shuyu Hou, Qinyi Peng, Xiaoshan Wang, Fangyi Wang, Tz-Hsuan Tseng, Le Yu, Steve Carver, Ian Convery, Zhicong Zhao, Xiaoli Shen, Sheng Li, Yaomin Zheng, Han Liu, Peng Gong, Keping Ma

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