The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit.
The plains zebra, also known as the common zebra, is the most common and geographically widespread species of zebra. Its range is fragmented, but spans much of southern and eastern Africa south of the Sahara. Six or seven subspecies have been recognised, including the extinct quagga which was thought to be a separate species. More recent research supports variations in zebra populations being clines rather than subspecies.
The snowcocks or snowfowl are a group of bird species in the genus Tetraogallus of the pheasant family, Phasianidae. They are ground-nesting birds that breed in the mountain ranges of southern Eurasia from the Caucasus to the Himalayas and western China. Some of the species have been introduced into the United States. Snowcocks feed mainly on plant material.
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 exist and are in use at international, multi-country, national and local levels as well as for consumer use.
Sium latifolium is a species of flowering plant in the family Apiaceae known by the common names great water-parsnip, greater water-parsnip, and wideleaf waterparsnip. It is native to much of Europe, Kazakhstan, and Siberia.
A least-concern species is a species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species conservation because the specific species is still plentiful in the wild. They do not qualify as threatened, near threatened, or conservation dependent.
The flora of Saint Helena, an isolated island in the South Atlantic Ocean, is exceptional in its high level of endemism and the severe threats facing the survival of the flora. In phytogeography, it is in the phytochorion St. Helena and Ascension Region of the African Subkingdom, in the Paleotropical Kingdom.
Berula is a cosmopolitan genus of flowering plants in the family Apiaceae, whose species are known as water parsnips, as are some other plants in Apiaceae such as Sium latifolium and Sium suave. It is easily confused with the highly toxic water hemlock.
The Sunda scops owl is a small brown owl native to the Sunda Islands.
A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as known only by living members kept in captivity or as a naturalized population outside its historic range due to massive habitat loss.
Apium bermejoi is a critically endangered species of flowering plant in the family Apiaceae.
Sium is a genus of flowering plants in the family Apiaceae. It is widely distributed across Europe, Asia, Africa, and North America. Plants of this genus are commonly called water parsnips.
Leucadendron strobilinum, commonly called the peninsula conebush, is a plant species in the genus Leucadendron—forming part of the family Proteaceae. Confined to the Cape Peninsula, it reaches a height of up to 2.6 metres growing in southern, damp rocky slopes at an elevation of 500 to 1100m. Its conservation status is Near Threatened—a result of inappropriate fire management, fire-break clearing and alien plant invasions.
Sium bracteatum is a species of flowering plant in the family Apiaceae. It is endemic to Saint Helena. It is protected in Diana's Peak National Park, but proper management practices have not yet been established. It is threatened by fragmentation of its populations, introduced species of plants, and possibly hybridization with Sium burchellii.
Sium suave, the water parsnip or hemlock waterparsnip, is a perennial wildflower in the family Apiaceae. It is native to many areas of both Asia and North America. The common name water parsnip is due to its similarity to parsnip and its wetland habitat. The alternate common name hemlock waterparsnip is due to its similarity to the highly poisonous spotted water hemlock.
Leucadendron album is a species of flowering plant in the family Proteaceae that grows in South Africa.
Grevillea molyneuxii, commonly known as the Wingello grevillea, is a shrub which is endemic to the shrublands of New South Wales in Australia.
Leucadendron laureolum is a species of plant in the family Proteaceae with common names golden conebush and laurel leaf conebush. It is endemic to South Africa and also cultivated. It is a large bush that turns bright yellow in the winter flowering season.
Protea burchellii, also known as Burchell's sugarbush, is a flowering shrub in the genus Protea, which is endemic to the southwestern Cape Region of South Africa.
