Wednesday 28 August 2013
Falkland Island Fox
The
Falkland Island Fox is extinct. The scientific name of the Falkland Island Fox (Dusicyon australis) means "foolish dog of the south", referring to the absence of fear towards humans. This does not necessarily mean they are aggressive, it simply meant that were not able to comprehend how dangerous man could be to them. They were the sole predators at the island, and that was why maybe they were put into a false sense of security.
It was also known as "Warrah", the Falkland Island Fox was the sole land mammal of the Falkland Islands...and unfortunately, this animal turned extinct in 1876. Fur of the Falkland Island Fox possessed a brown-orange hue, but its tail was actually white. Food habits of these foxes were unknown. However, experts guess that since there were no native rodents at that place, the diet of the Falkland Island Foxes consists mostly of birds like penguins and grubs, and insects.
First sightings were in 1692 by Captain Strong. Around 1833 or thereabouts, settlers thought of this fox as a danger to the sheep, and out of fear, they set up massive shooting and poisoning. This extermination movement succeeded, and common sense dictates that this campaign was one major reason for the Falkland Island Foxes going extinct.
According to a few historical records, a Falkland Island Fox could get into a tent, and get a piece of meat from under the head of somebody sleeping. One manner described in these documents in the way of killing the foxes: hold out a piece of meat, and with the other hand, have a knife ready for the killing. In 1868, a live one was captured and taken to the London Zoo, but it did not live for a long time.
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Monday 19 August 2013
Diademed Sifaka - One of the most colorful and attractive of all the lemurs
The
Diademed Sifaka (Propithecus diadema) is a species of lemur belonging to the Propithecus genus, known as sifakas. As are all lemurs, they are endemic to the island of Madagascar. Their range lies mostly within the lowland forests of eastern Madagascar and extends into the subhumid forests of the Central Highlands. The lowlands are made up of dense evergreen forests with canopies of up to 30 m (98 ft). The highlands are a more mountainous region covered in broadleaf forests. Males are 37.2-50.8 cm (14.6-20 in) in height and 3.04-6.5 kg (6.7-14.3 lb) in weight. Females are 37.2-53.5 cm (14.6-20 in) in height and 3.1-6.7 kg (6.83-14.8 lb) in weight. Sifakas are arboreal, rarely venturing out of trees. Their only terrestrial predators are the
fossa and the Nile crocodile. They may also be hunted by humans. It is considered taboo by many in Madagascar to hunt the sifaka, although much of the younger generation does not agree.
The Diademed Sifaka has a long, silky coat which is reddish-brown at the extremities and white to gray on the back and chest. The neck is black, as are the face and hands. The face is encircled by a white crown. Primatologist Russell Mittermeier called it "one of the most colorful and attractive of all the lemurs." Their diet consists of leaves, seeds, fruit and flowers. Traveling from tree to tree throughout the day, they consume as many as 25 species of vegetation. The Diademed Sifaka is a social animal, living in groups of 3-10. They scent-mark their territory, which they aggressively defend from other members of their species. They are known to tolerate the presence of other lemurs.
The Diademed Sifaka is an endangered species. It is classified by the International Union for Conservation of Nature as critically endangered. It is estimated to have a population of 6,000 to 10,000 individuals. The largest threat to this species is human destruction of its habitat; native peoples employ slash-and-burn farming techniques which destroy vast areas of forest. Much of this destruction takes place in national parks far from the populated areas of Madagascar's east coast, where laws protecting endangered species are difficult to enforce.
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