Science Advances

Supplementary Materials

The PDF file includes:

  • Fig. S1. Japan was the major importer of tortoiseshell from 1844 to 1992.
  • Fig. S2. Turtle exports per country varied in relation to CITES trade ban.
  • Fig. S3. Illegally trafficked hawksbill sea turtle parts and products are seized entering the United States from more than 70 countries.
  • Fig. S4. Seized hawksbill sea turtles are trafficked to the United States largely by air transportation and in raw forms more frequently than processed tortoiseshell.
  • Fig. S5. Power law models show the relationship between calculated precise and crude areas for individual scutes and scute groupings from hawksbill sea turtles.
  • Fig. S6. Hawksbill sea turtle specimens used in this study were a range of sizes.
  • Fig. S7. Demographically explicit scenarios produce different estimates of the number of hawksbill sea turtles harvested.
  • Table S1. Hawksbill sea turtle export data curation methods.
  • Table S2. Model parameters for tortoiseshell morphometric relationships in Fig. 1.
  • Table S3. Complete list of United Nations country abbreviations (alpha 2) used in Fig. 4 and figs. S1 and S3.
  • Legends for dataset S1 to S3

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Other Supplementary Material for this manuscript includes the following:

  • Dataset S1 (.csv format). Hawksbill sea turtle historical trade records.
  • Dataset S2 (Microsoft Excel format). Hawksbill sea turtle scute morphometrics.
  • Dataset S3 (Microsoft Excel format). U.S. seizure records of hawksbill sea turtles.

Files in this Data Supplement: