Silky Sifaka (Propithecus candidus) lives in tropical rainforest across Northeastern Madagascar. It feeds on leaves and fruit. Its conservation status is Critically Endangered.
Fascinating facts about the Silky Sifaka
- Silky sifakas live high up in Madagascar's mountains, ranging from 300 m to 1,875 m elevation, a broader span than any other sifaka. In Marojejy and Anjanaharibe-Sud they stay above 700 m, yet at their southernmost site in Makira they occupy forest fragments as low as 300 m. This altitude flexibility lets them exploit diverse habitats, from primary montane rainforest to sclerophyllous forest and low ericoid bush.
- A single day each year marks the entire breeding season for silky sifakas. They mate only once at the start of the rainy season, usually in December or January, and give birth six months later in June or July. Females usually have a single infant every two years, though births in consecutive years have been recorded. The species numbers only about 250 adults.
- Silky sifakas spend roughly half their daylight hours feeding, with 52 % of that time on leaves, 34 % on fruit, and 11 % on seeds. In a two-month study they ate from 76 plant species in 42 families, favoring Moraceae (20.30 %), Fabaceae (12.87 %), Myrtaceae (12.65 %), Clusiaceae (10.13 %) and Apocynaceae (9.49 %). Their mixed diet of foliage, fruit and seeds likely spreads seeds across the forest, linking them to forest regeneration.
- Only two predators regularly threaten silky sifakas: humans and the fossa (Cryptoprocta ferox). Humans hunt them without any local taboo, and fossa attacks have been observed in the wild. Because sifakas reproduce slowly, females give birth every two years.
- Male silky sifakas are uniquely identifiable by a brown chest patch that results from scent-marking with a chest gland; females remain white-chested. During the mating season the patch can expand to cover the entire chest and abdomen. This visible dimorphism lets researchers quickly sex individuals in the field.
Sources
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At a glance
RangeNortheastern Madagascar
HabitatTropical rainforest
DietLeaves and fruit
About the Silky Sifaka
In the lush, emerald forests of Madagascar, the silky sifaka reigns as a ghostly apparition, its snow-white fur glistening like a beacon as it glides effortlessly through the trees, its long arms outstretched in a majestic, slow-motion dance. With each leap, it seems to defy gravity, its slender body suspended in mid-air as it traverses the forest canopy with an ethereal elegance, a true marvel of evolution. As one of the most endangered primates on the planet, the silky sifaka's very existence is a poignant reminder of the fragile beauty that hangs in the balance of our planet's delicate ecosystem.
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