A glossary of definitions for terms relating to biodiversity, ecosystems services and conservation.
All definitions are referenced, where possible preference has been given to internationally recognised definitions (for example those defined by international conventions or agreements). The terms have been chosen to support understanding of biodiversity and conservation issues, and terms relating to biodiversity loss are complemented by those relating to conservation responses supported by international conservation organisations, governments, scientists and business sectors.
More detailed explanations are provided for a number of key terms, to provide further background information.
The terms can be filtered by category to aid in the navigation of the many definitions.
Species Threat Abatement and Restoration Metric (STAR)
STAR stands for “Species Threat Abatement and Restoration”. It is a biodiversity metric based on The IUCN Red List of Threatened Species, which combines data on species, the threats they face and their risk of extinction, to produce two complementary global data layers for threat abatement and restoration opportunity. These can be used by organisations to identify areas where actions to abate threats or undertake restoration can help reduce species extinction risk and contribute to conservation goals12.