| Within the Pacific Islands region are the subregions of Polynesia, Melanesia, and Micronesia. |
| Reductions in harvestable shellfish resources in the Northeast and Mid-Atlantic subregions is attributed to overharvesting , disease, predation, and environmental impacts. |
| Canids and, to a lesser extent, felids are present in the Tundran, Coniferan, and Deciduan subregions always as continuous carnivores. |
| For most species, a table of population sizes and trends for seven subregions within the Barents Sea Region is provided. |
| Nevertheless, this region can be subdivided into four definable subregions, indicated by vertical bars, limiting the extent of the discrepancies. |
| That region is a strategic centre and the cornerstone of security in the African continent and its subregions and of Egypt's national security. |
