Comparison of marine mammal population trend classification results from this study with IUCN classifications.

Percentage of marine mammals at the species level in abundance trend categories from this study (n = 27), the equivalent IUCN species (n = 27), and all marine mammal species assessed by IUCN (n = 127). The IUCN does not have a “Non-Significant” category as in this study, but it does have a “Stable” category not used in our results.