Protected areas: how will they contribute to third millennium challenges?

Abstract

Biodiversity is valued for its intrinsic worth and for its role in generating ecosystem services, such as soil fertility, clean air, renewable bio-resources, and water quality and availability. While biodiversity outcomes are generally pursued by nations for land in various types of ownership, this article focuses on protected areas on publicly owned lands. Currently, the internationally agreed protected area classification used by the United Nation’s Convention on Biological Diversity differentiates them in terms of nature conservation objectives and ‘compatible’ human uses. This suggests that protected areas can be arranged along a spectrum of protection stringency, from reserves and wilderness areas at one end, to so-called ‘sustainable use lands’ at the other.