Science Advances

Supplementary Materials

This PDF file includes:

  • Distance analysis
  • Table S1. Detection model selected, parameters estimated and their variance, probability density function evaluated at distance zero f(0), detection probability (p), and ESW.
  • Table S2. Results of χ2 goodness of fit test on detection model.
  • Table S3. Decay times, 95% confidence levels (lower confidence level, upper confidence level) and nest sample sizes from five sites.
  • Table S4. Summed AIC weights for the six predictors.
  • Table S5. Selected predictors for the Sumatran orangutan density distribution model.
  • Table S6. Spearman correlations between all predictors.
  • Table S7. Abundance estimates for current orangutan distribution and future landuse scenarios based on a 5-km barrier.
  • Fig. S1. Histogram of detection distances: truncation distance, 32.5 m; six intervals.
  • Fig. S2. Model diagnostics for the best and full model.
  • Fig. S3. Distribution of orangutan populations separated by at least 1 km: Situation as of 2012.
  • Fig. S4. Distribution of orangutan populations separated by at least 1 km: Scenario 1 (year 2020).
  • Fig. S5. Distribution of orangutan populations separated by at least 1 km: Scenario 2 (year 2020).
  • Fig. S6. Distribution of orangutan populations separated by at least 1 km: Scenario 3 (year 2030).
  • Fig. S7. Distribution of orangutan populations separated by at least 1 km: Scenario 4 (year 2030).
  • Fig. S8. Distribution of orangutan populations separated by at least 1 km: Scenario 5 (year 2030; note that this scenario is based on land-use change prediction for Aceh only).
  • Fig. S9. Distribution of orangutan populations separated by at least 1 km: Scenario 6 (year 2030).
  • Fig. S10. Distribution of orangutan populations separated by at least 1 km: Scenario 7 (year 2030).
  • Fig. S11. Distribution of orangutan populations separated by at least 1 km: Scenario 8 (year 2030).
  • Fig. S12. Distribution of orangutan populations separated by at least 1 km: Scenario 9 (year 2030).
  • Fig. S13. The estimated sizes of orangutan populations (defined as all adjacent and occupied patches below a distance of 5 km) based on the recent survey and under nine different land-use scenarios for the years 2020 and 2030, respectively.
  • Fig. S14. Distribution of orangutan populations separated by at least 5 km: Situation as of 2012.
  • Fig. S15. Distribution of orangutan populations separated by at least 5 km: Scenario 1 (year 2020).
  • Fig. S16. Distribution of orangutan populations separated by at least 5 km: Scenario 2 (year 2020).
  • Fig. S17. Distribution of orangutan populations separated by at least 5 km: Scenario 3 (year 2030).
  • Fig. S18. Distribution of orangutan populations separated by at least 5 km: Scenario 4 (year 2030).
  • Fig. S19. Distribution of orangutan populations separated by at least 5 km: Scenario 5 (year 2030; note that this scenario is based on land-use change prediction for Aceh only).
  • Fig. S20. Distribution of orangutan populations separated by at least 5 km: Scenario 6 (year 2030).
  • Fig. S21. Distribution of orangutan populations separated by at least 5 km: Scenario 7 (year 2030).
  • Fig. S22. Distribution of orangutan populations separated by at least 5 km: Scenario 8 (year 2030).
  • Fig. S23. Distribution of orangutan populations separated by at least 5 km: Scenario 9 (year 2030).
  • References (53–56)

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