Each species on our planet plays a role in the healthy functioning of natural ecosystems, on which humans depend. - William H. Schlesinger

Saturday, April 30, 2011

10 Animals on the Brink of Extinction-Silky Sifafka


               This species of lemur only lives on the island of Madagascar in the northeastern rainforests. Its population is very small and it is hunted by some local people for meat. It is one of the most endangered primates in the world. The silky sifafka has never been bred in captivity, meaning if it is killed entirely in the wild, it most likely can’t be kept alive in a captive breeding program or zoo.

               Unfortunately, the species has a low birth rate. Compounding matters, political turmoil has disrupted normal operations at one of the sites where they live. The Marojejy park has closed to tourism because of unsafe conditions created by armed thugs stealing very valuable hardwoods.

Population: approximately 100 – 1000

Reproduction: generally females birth one infant every two years, but there are cases of a female birthing one infant per year.

10 Animals on the Brink of Extinction- Sumatran Tiger


           The Sumatran Tiger is being decreased substantially by poaching and logging of its traditional forest range. Some of the logging is illegal. Recent research has indicated that the clash between tigers and humans in Sumatra that has killed both species is due to the aggressive destruction of forests by Asia Pulp and Paper.
About 100 tigers live in a nature preserve on the island, but poachers are killing them even in protected areas. The Bali, Java, and Trinil tigers which are related to the Sumatran, have all been driven into extinction.

Population: Approximately 400

Reproduction: Females usually give birth once a year to several cubs. Cubs are born blind.

10 Animals on the Brink of Extinction-Saiga Antelope


             Adults can run up to 50 mph in bursts, and herds have known to range hundreds of miles in several days. As recently as 1950 there could have been about two million saiga, however, the population since then has been reduced by about 97%. The source of the devastation is a very strong demand for the horns of the males for traditional chinese medicine. Poachers are killing the antelopes in a large numbers steadily. Some believe the horns can be used to treat fevers and they are sold for about $100 per pound.

            Traditional medicine often has no basis in science; and is rooted in superstition or anecdotal evidence. It is especially tragic that so many of the antelope are being slaughtered over a misconception. The National Wildlife federation provided an account of the rate of slaughter in one 2004 incident, ”some 80,000 saiga crossed from Kalmykia into the neighboring Russian republic of Dagestan to the south. Weeks later, only a few animals returned. ”

Population size: approximately 42,000 but the rate of slaughter is very high, and constant due to poaching. Even in a protected area, the population has been cut 95% since 1997. The saiga is one of the most rapidly declining mammals in the world.

Reproduction: Females breed about once a year, with a litter size of 1-2 calves.

10 Animals on the Brink of Extinction - Iberian Lynx


               The Iberian (Spanish), Lynx lives in very small areas of central and southern Spain (Andalucia). It  used to live throughout Spain and Portugal but its numbers have been drastically reduced to the point where it is now one of the most endangered wild cats in the world.
In the early 1950s a virus named Myxomatosis was illegally introduced by a French scientist to wild rabbits on his estate to protect his vegetable patch. Tragically the virus spread rapidly, and killed about 90% of the wild rabbits in France.  Spanish rabbits also died  in huge numbers even going completely missing in some areas,  so thousands of lynx starved to death. Habitat loss, hunting and trapping also have decimated the lynx. They are protected now, but they still get caught in fox traps.  Another cause of death recently is getting hit by cars in Donana National Park.


Population size: approximately 100 – 150

Reproduction: Females breed about once a year, with a litter size of 1-3 cubs. In breeding captivity programs, a litter of 3 cubs was born in 2005, and another 3 cubs in March 2009.

Baiji River Dolphin & Syrian Wild Ass



The inevitable appears to have arrived for the Baiji River Dolphin, a peaceful, majestic dolphin which had inhabited China’s Yangtze River for at least the last 20 million years. The dolphin was declared functionally extinct after an expedition late in 2006 failed to record a single individual after an extensive search of the animal’s entire range.
Although unconfirmed sightings have come out since then, it’s unlikely that any living individuals, should they still exist, would be able find each other and breed. This tragic demise makes the Baiji Dolphin the first recorded extinction of a cetacean in modern times.
The population had been declining rapidly in recent decades since the rise of Chinese industrialization, which has utilized the Yangtze River as one of its primary arteries. The river is now one of the worst polluted major waterways in the world, being heavily relied upon for transportation and hydroelectricity. Roughly 12% of the world’s human population lives and works within the river’s catchment zone.
Traditional Chinese tales refer to the Baiji as a symbol of peace and prosperity. However, that traditional veneration was denounced during China’s “Great Leap Forward”, which called for hunting the animal in the name of redefining Chinese prosperity.
Regrettably, the Chinese may have got what they called for. Now that the dolphin is extinct, it’s difficult to avoid drowning the kind of prosperity it once symbolized along with it.


The Syrian Wild Ass was likely extinct when the last known captive animal died at the Schönbrunn Zoo in Vienna, Austria, in 1928. It once had a wide range throughout Mesopotamia, where reports were common of large herds which used to roam wildly in the mountains and desert steppes of the Middle East.
Although already threatened beforehand, it is said that the Syrian Wild Ass completely collapsed during World War I, when their habitat was overrun with heavily armed Turkish and British troops.

Javan Tiger & Tecopa Pupfish


Javan Tigers are a subspecies of tiger which were limited to the Indonesian island of Java. The last specimen to have been seen was sighted in 1972, although there is evidence from track counts that the animal had lingered into the 1980′s. The last track counts to yield evidence of the tigers was held in 1979, when just three tigers were identified.
The leading cause of their extinction was agricultural encroachment and habitat loss, which continues to be a serious concern in Java.
There are some who believe that Javan Tigers could still be alive in some of the island’s few remaining forested regions, although even so, the tiger’s numbers would be so low that the species would still be functionally extinct. The region most likely to contain a tiger today would have to be the Meru Betiri National Park, although even that area is now being threatened by mining companies after the discovery of gold nearby.



The Tecopa Pupfish has the unfortunate distinction of being the first species to be declared extinct under the Endangered Species Act of 1973. The official de-listing of the animal came in 1981.
The fish were first discovered in the Tecopa Hot Springs in California in 1942, and their decline followed shortly thereafter, as the Hot Springs were canalized and replaced with bathhouses. The final nail in the coffin came when hotels and trailer parks were built nearby to allow for more comfortable recreation for tourists.

Pyrenean Ibex & Bubal Hartebeest


The Bubal Hartebeest was a magnificent, tough beast which was once domesticated by the ancient Egyptians as a food source and for sacrificial purposes. The creature was even mentioned in the Old Testament.
Although it once roamed throughout Northern Africa and the Middle East, the deep-rooted mythology which surrounded the animal was not enough to save it from European hunters who began hunting them for recreation and meat. The last Bubal Hartebeest was probably a female which died in the Paris Zoo in 1923.


The Pyrenean Ibex was the first species to ever be brought back into existence via cloning, only to go extinct again just seven minutes after being born due to lung failure. Here at Ecolocalizer, we reported on the event, which happened in January 2009.
The last naturally born Pyrenean Ibex died on January 6th, 2000; it was found dead under a fallen tree at the age of 13. That animal’s only companion had died just a year earlier due to old age. Although the recent effort to resurrect the Ibex was short-lived, the event does bring optimism, and raise serious debate, about whether extinct creatures should be given a second chance.