This year Endangered Species Day is on the 17th of May and here at ARKive to show our support we have decided to showcase some of the less well known endangered species.
Greater bamboo lemur
Once widespread throughout Madagascar, the greater bamboo lemur is now restricted to just 1-4% of its historic range. The largest of the bamboo lemurs, this species was believed to be extinct for almost 50 years until it was rediscovered in 1972. The main threats to the greater bamboo lemur is habitat destruction by slash and burn agriculture, mining and illegal logging.
The spoon-billed sandpiper is a small, attractive bird with a distinctive spoon-shaped bill. As this species has very particular habitat requirements, only breeding in coastal areas with sand and sparse vegetation within six kilometres of the sea, habitat loss and alteration have greatly impacted upon it. Recent population surveys have shown that numbers of this species are declining rapidly. However, the Wildfowl and Wetlands Trust are taking action to save this species by setting up a conservation breeding programme to buy some time while the major problems are tackled.
Tonkin snub-nosed monkey
Presumed to be extinct before its rediscovery in 1989, the Tonkin snub-nosed monkey is an unusual and distinctive-looking monkey. With its broad, flattened face, pale blue rings around the eyes and thick, pink lips, it almost has a comical appearance. The range of the Tonkin snub-nosed monkey has been greatly reduced by massive deforestation and intensive hunting. The total population of this monkey may number only around 200 to 250 individuals, and these are fragmented into small subpopulations which are unable to interbreed.
The vaquita is a small and slender porpoise species endemic to Mexico. In 2007 it was estimated that only about 150 vaquitas remained in the world. The main threat to this species is drowning after becoming entangled in gill nets and trawl nets, which is estimated to be claiming the lives of 39 to 84 vaquitas each year.
Chinese giant salamander
A giant of the plant world, the coco-de-mer is a palm species which produces the largest and heaviest seeds of any plant in the world. Endemic to the Seychelles, the Endangered coco-de-mer has already been lost from three of the Seychelles islands in its former range. The main threat to this plant species is the collection of its seeds, which has almost stopped all natural regeneration of population’s.
The saola is an unusual, long-horned bovid which was discovered as recently as 1992. The entire range of the saola is found in a narrow area of forest on the border between Vietnam and Laos. Classified as Critically Endangered, the saola is increasingly threatened as a result of hunting, as well as habitat loss and habitat fragmentation due to the development of infrastructure within its small range.
Titicaca water frog
Endemic to Lake Titicaca, the Titicaca water frog is the largest truly aquatic frog and can weigh up to 1 kg. While its extremely loose skin gives it a bizarre appearance, the skin is very rich in capillaries, enabling the frog to remain underwater without having to surface for air. Unfortunately, the Titicaca water frog is under great threat as a result of over-collection for human consumption.
Believed to be extinct in the early 1990s until being rediscovered in 1995, the estuarine pipefish is still at risk of extinction. The loss of this pipefish from the majority of its former range is thought to be due to construction of upstream dams. These developments restrict the supply of fresh water which brings with it essential nutrients required by the phytoplankton upon which the food chain depends.
These are just a few of the species which need our help – find out more about endangered species by visiting our Endangered Species topic page.
Jemma Pealing, ARKive Researcher