The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological species. A series of Regional Red Lists are produced by countries and organizations, which assess the risk of extinction to species within a political management unit.
Threatened species are any species which are vulnerable to extinction in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of critical depensation, a mathematical measure of biomass related to population growth rate. This quantitative metric is one method of evaluating the degree of endangerment.
The conservation status of a group of organisms indicates whether the group still exists and how likely the group is to become extinct in the near future. Many factors are taken into account when assessing conservation status: not simply the number of individuals remaining, but the overall increase or decrease in the population over time, breeding success rates, and known threats. Various systems of conservation status are in use at international, multi-country, national and local levels, as well as for consumer use such as sustainable seafood advisory lists and certification. The two international systems are by the International Union for Conservation of Nature IUCN and The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES)
A conservation-dependent species is a species which has been categorized as "Conservation Dependent" ("LR/cd") by the International Union for Conservation of Nature (IUCN), as dependent on conservation efforts to prevent it from becoming endangered. A species that is reliant on the conservation attempts of humans is considered conservation dependent. Such species must be the focus of a continuing species-specific and/or habitat-specific conservation program, the cessation of which would result in the species qualifying for one of the threatened categories within a period of five years. The determination of status is constantly monitored and can change.
Gilbertiodendron bilineatum is a species of plant in the family Fabaceae. It is found in Ivory Coast, Ghana, Liberia, and Sierra Leone. It is threatened by habitat loss.
Gilbertiodendron klainei is a species of plant in the family Fabaceae. It is found only in Gabon.
Gilbertiodendron pachyanthum is a species of plant in the family Fabaceae. It is found only in Cameroon. It is threatened by habitat loss.
Gilbertiodendron robynsianum is a species of plant in the family Fabaceae. It is found only in the Ivory Coast. It is threatened by habitat loss.
Gilbertiodendron splendidum is a tall forest tree of lowland swamp forests of coastal West Africa in the family Fabaceae. It is found in Upper Guinean forests along coastal regions of Côte d'Ivoire, Ghana, and Sierra Leone. It is threatened by habitat loss.
Idiopappus is a monotypic genus of flowering plant in the family Asteraceae. Its only species is Idiopappus saloyensis, endemic to Ecuador. Its natural habitat is subtropical or tropical high-altitude grassland. It is threatened by habitat loss.
Aporosa symplocifolia is a species of plant in the family Phyllanthaceae. It is endemic to the Philippines. Under the synonym Aporosa elliptifolia, it was classed as "vulnerable" in 1998, but in 2021, it is classed as of "least concern".
Artocarpus treculianus is a species of plant in the family Moraceae. It is endemic to the Philippines. It is threatened by habitat loss. Local names include chipuho and tipuho.
Malouetia quadricasarum, synonym Malouetia isthmica, is a species of plant in the family Apocynaceae. It is native to Panama, Colombia and Peru. Under the synonym M. isthmica, it was assessed as "vulnerable" in the 1998 IUCN Red List. It is threatened by habitat loss.
Aristolochia preussii, synonym Pararistolochia preussii, is a species of plant in the family Aristolochiaceae. It is native to Cameroon, Equatorial Guinea, Gabon, and Ivory Coast. Its natural habitat is subtropical or tropical dry forests. It was assessed as "critically endangered" and threatened by habitat loss in the 2000 IUCN Red List, where it is said to be native only to Cameroon., Plants of the World Online gives it a wider distribution.
Justicia harlingii is a species of plant in the family Acanthaceae. It is endemic to Ecuador. Its natural habitat is subtropical or tropical moist montane forests. It is threatened by habitat loss.
Trema discolor is a species of plant in the family Cannabaceae. It is endemic to French Polynesia. It is native to the Society Islands and to Raivavae in the Tubuai Islands.
A Regional Red List is a report of the threatened status of species within a certain country or region. It is based on the IUCN Red List of Threatened Species, an inventory of the conservation status of species on a global scale. Regional Red Lists assess the risk of extinction to species within a political management unit and therefore may feed directly into national and regional planning. This project is coordinated by the Zoological Society of London, the World Conservation Union (IUCN) and partners in national governments, universities and organizations throughout the world.
Angraecum distichum is a species of comet orchid that is found across sub-Saharan and tropical Africa.
Gilbertiodendron dewevrei is a species of tree in the family Fabaceae, native to tropical rain forests in Central Africa. It is often the dominant tree species of the Guineo-Congolian rainforest. The timber is traded as limbali, and is used for construction, flooring and railway sleepers. It is also used for making boats, furniture, tool handles and joinery and for making charcoal.
Julbernardia seretii, commonly known as the Congo zebrawood, is a species of legume in the family Fabaceae. It is found in tropical West and Central Africa.
