Conservation Tool
IUCN Red List of Threatened Species
The IUCN Red List of Threatened Species™ is the world’s most comprehensive information source on the global extinction risk status of animal, fungus and plant species. Open to all, it is used by governmental bodies, non-profit organisations, businesses and individuals.
Conservation Tool
Species Threat Abatement and Restoration (STAR) metric
The Species Threat Abatement and Restoration (STAR) metric measures the contribution that investments can make to reducing species’ extinction risk. It helps governments, cities, civil society, the finance industry, investors and companies to target their investments and activities to achieve…
Publication | 2021
Útila spiny-tailed iguana (Ctenosaura bakeri)
The Útila spiny-tailed iguana, Ctenosaura bakeri (Stejneger, 1901), is a Critically Endangered iguana endemic to the island of Útila, in the Bay Islands archipelago of Honduras. The species occurs almost exclusively in the highly dynamic mangrove habitat on Útila (Gutsche, 2005), and is…
Publication | 2021
The decline of many species towards extinction has largely focused conservation efforts on ensuring that species remain extant. However, conservationists have long recognised the need to complement this by aiming to recover depleted populations throughout a species’ range and to restore species…
Publication | 2021
Turks and Caicos rock iguana (Cyclura carinata)
The Endangered Turks and Caicos rock iguana, Cyclura carinata, is found only on the islands and cays of Turks and Caicos Islands (TCI), and on Booby Cay in The Bahamas, northwest of Providenciales. These iguanas now occupy less than 10 percent of their historic range largely due to the impact of…
Publication | 2021
A global register of competences for threatened species recovery practitioners
Competence frameworks are widely used in many professional sectors, helping to develop capacity by defining and recognising the required skills, knowledge and personal attributes. Registers of competences have been developed within the conservation sector. A global register of competences for…
Publication | 2021
A survey of user attitudes towards the proposed IUCN Green Status of Species
The passing of the IUCN Resolution 041 (Development of objective criteria for a Green List of species, ecosystems and protected areas) at the IUCN World Conservation Congress in Jeju Island, South Korea in September 2012 provided an important indication of government and NGO support for the…
Publication | 2021
The conservation status of marine biodiversity of the Western Indian Ocean
The Western Indian Ocean is comprised of productive and highly diverse marine ecosystems that are rich sources of food security, livelihoods, and natural wonder. The ecological services that species provide are vital to the productivity of these ecosystems and healthy biodiversity is essential…
Publication | 2020
Ex situ options for cetacean conservation
China’s Yangtze river dolphin (Lipotes vexillifer), was declared likely to be extinct in 2006, due to threats in the wild such as habitat loss, entanglement in fishing gear and ship strikes, which were not effectively dealt with using the management tools available prior to that time. Mexico’s…
Publication | 2020
IUCN EICAT categories and criteria : first edition
A unified classification of alien taxa based on the magnitude of their environmental impacts has been developed in response to these issues. EICAT (Environmental Impact Classification for Alien Taxa) is a simple, objective and transparent method for classifying alien taxa in terms of the …