Another Success Story for Perth Zoo, Western Australia
Helping Save Endangered Species
Perth Zoo in Western Australia has had another windfall with the birth of a pair of black and white ruffed lemurs. These were born in December and are the latest addition to the zoo's world-renowned primate enclosure. Perth Zoo has just welcomed a baby Rothschild giraffe, the eighth to be born at the zoo. In addition, a baby white-cheeked gibbon has been successfully reared to the point where it has now rejoined its family. All these animals are on the endangered list.
It is the second pair of lemur twins for the year. Both sets have been born to Anniki. The species is all but extinct in its native Madagascar. Its best chance of survival now relies on conservation and breeding programs in zoos and wildlife parks.
The lemur is named after ghosts or spirits (lemurs) of Roman mythology. This is because of their ghostly vocalistions, reflective eyes and the nocturnal habits of some species. They are endemic to Madagascar and are thought to have floated there on rafts of vegetation. The climate on the island is extremely seasonal and lemurs have a degree of adaptation that rivals that of all other primates. There are nearly 100 species and there is still controversy over the correct taxonomic classification.Credit: Wikimedia
The main dangers facing the lemur in its native region are dwindling habitat, hunting (for food) and capture for the black market pet trade. They can live to 25 years and the new babies are in excellent health and look set for a long and hopefully productive life.
Lemurs belong to the Lemuridae family and the genus Varecia. There are two species of ruffed lemurs. The black-and-white variety (Varecia variegata) is the more endangered of the two and has three subspecies of its own. The white-belted black-and-white ruffed lemur (Varecia variegate subcincta) is found to the north; the southern black-and-white (Varecia variegate editorum) is to the south and the black-and-white (Varecia variegata variegata) is in the middle! It is usually found between sea level and 1,350 metres above.
The black-and-white ruffed lemur and the red ruffed lemur are both endemic to eastern Madagascar. The former has a larger range but a much smaller, more diverse population. It is the more endangered of the two species.
Ruffed lemurs are found in the seasonal humid rainforests on the eastern side of the island. They are arboreal, spending most of their time in the high canopy. They inhabit both primary and secondary forests.
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adaptations and behaviour of these
creatures, the threats they face,
and what the future holds for them.
In the wild, the black and white lemur is at risk from the goshawk and the mongoose. Habitat loss through agriculture, mining and logging is of great concern. Hunting is also a problem as its large size makes it a relatively easy target.
Lemurs play an important role in the ecology of Madagascar. They feed on seasonal fruits then move on, depositing undigested seeds in their faeces. In this way they disperse new plants which replenish the natural vegetation. Over 80% of the original habitats have been lost to logging and agriculture and the dispersal of seeds and revegetation with native plants is of immense importance.
All ruffed lemurs are listed as 'critically endangered' on the International Union for Conservation of Nature.