Leon Bennun

TL;DR: Though the threat of extinction is increasing, overall declines would have been worse in the absence of conservation, and current conservation efforts remain insufficient to offset the main drivers of biodiversity loss in these groups.

TL;DR: It is argued that more radical changes are required that recognize biodiversity as a global public good, that integrate biodiversity conservation into policies and decision frameworks for resource production and consumption, and that focus on wider institutional and societal changes to enable more effective implementation of policy.

TL;DR: The financial costs for two of the targets relating to protected areas and preventing extinctions are estimated, using data from birds to develop models that can be extrapolated to the costs for biodiversity more broadly.

TL;DR: A method for producing indices based on the IUCN Red List to chart the overall threat status (projected relative extinction risk) of all the world's bird species from 1988 to 2004 is presented.

TL;DR: The criteria address the two key issues for setting site conservation priorities: vulnerability and irreplaceability and propose quantitative thresholds for the identification of KBAs meeting each criterion, based on a review of existing approaches and ecological theory to date.