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The Sixth South Pacific Conference on Nature Conservation and Protected Areas held in Palikir, Federated States of Micronesia, on 29 September – 3 October 1997, continued the series of nature conservation conferences held in New Zealand (1975), Australia (1979), Western Samoa (1985), Vanuatu (1989) and Tonga (1993).

The Sixth South Pacific Conference on Nature Conservation and Protected Areas held in Palikir, Federated States of Micronesia, on 29 September – 3 October 1997, continued the series of nature conservation conferences held in New Zealand (1975), Australia (1979), Western Samoa (1985), Vanuatu (1989) and Tonga (1993).

"Failures to manage the environment and to sustain development threaten to overwhelm all countries. Environment and development are not separate challenges; they are inexorably linked. Development cannot subsist upon a deteriorating environmental resource base; the environment cannot be protected when growth leaves out of account the costs of environmental destruction. These problems cannot be treated separately by fragmented institutions and policies. They are linked in a complex system of cause and effect."

Abstract Global changes, from habitat loss and invasive species to anthropogenic climate change, have initiated the sixth great mass extinction event in Earth's history. As species become threatened and vanish, so too do the broader ecosystems and myriad benefits to human well-being that depend upon biodiversity. Bringing an end to global biodiversity loss requires that limited available resources be guided to those regions that need it most. The biodiversity hotspots do this based on the conservation planning principles of irreplaceability and vulnerability. Here, we review the development of the hotspots over the past two decades and present an analysis of their biodiversity, updated to the current set of 35 regions. We then discuss past and future efforts needed to conserve them, sustaining their fundamental role both as the home of a substantial fraction of global biodiversity and as the ultimate source of many ecosystem services upon which humanity depends.

9Due to its paleogeographic and ecological background, the Medi-terranean Sea hosts a relatively high diversity and endemism of marine species and habitats. In relation to human occupation of the Mediterranean coasts over thousands of years, these unique species and habitats are increasingly under threat from human activities, and in particular at the present time from fishing practices, unsustainable tourism, coastal development, pollution and the exacerbating effects of climate change. These threats are among the main causes of biodiversity losses and species decline.