I-II ■ IUCN cat. It provides additional detail about the extent of protected areas, and which management objectives are pursued within and across countries. It does not, however, answer important and policy-relevant questions such as the extent to which protected areas are protecting national or global biodiversity or whether protected areas are effectively managed or enforced. There is not only a lot of variation in the extent of protected areas (relative to country size), but management objectives can also vary considerably between countries.