This large lemurmeasures cm long and weighs kg. It is endemic to the northeasternregion of Madagascar and is locally known as the simpona. It is believed that only one female from each group breeds, while males may move from group to group. All sifakas are threatened by the destruction of their forest habitats.
Some species are hunted for meat, though others are protected by Malagasy tradition that forbids eating their flesh. All rights reserved. Common Name: Sifakas. Scientific Name: Propithecus. Type: Mammals. Diet: Herbivore. Group Name: Troop. Size: Head and body: 18 inches; tail: 18 inches. Weight: 7 to 13 pounds. Size relative to a 6-ft man:. This photo was submitted to Your Shot, our photo community on Instagram. Male silky sifakas spend more time than females scent-marking, though it has been observed that female scent-marks are more likely to get a response by group members.
As with P. Though rates of scent-marking are high, silky sifakas have never been observed scent-marking the boundaries of their home ranges. Silky sifakas are mainly folivores. Their diet mostly consists of mature and young leaves, seeds, fruits, and flowers. They also rarely eat flowers, bark, and soil. Silky sifakas feed on a wide range of plants. They have been observed to eat from 76 species, encompassing 42 families of plants.
The foods that they prefer to eat the most are Pachytrophe dimepate fruit, Senna seeds, Plectaneia thouarsii leaves, and Eugenia leaves. The two main predators of the silky sifakas are humans and the fossa Cryptoprocta ferox.
Silky sifakas are hunted by humans for food and there is no local taboo against eating silky sifaka meat. The fossa is the largest extant carnivore on Madagascar and it is the most common predator of species of the genus Propithecus. Predation of Propithecus candidus by a fossa has been observed in nature. Other than humans and the fossa, it is unclear whether silky sifakas are eaten by other predators. Silky sifakas often stare upward and sometimes emit aerial disturbance roars in response to the Madagascar buzzard Buteo brachypterus.
This raptor does not feed on lemurs, however, and it is unknown if other birds of prey pose a risk to silky sifakas. The role that silky sifakas play in their ecosystem is unknown. As a primarily folivorous organism that eats both seeds and fruits, it is likely that they play an important role in seed dispersal. Silky sifakas are also a food source for humans and fossas. Patel, ; Patel, Silky sifakas are hunted for food. There are no other known positive effects of this species on humans other than the ecosystem role it provides in seed dispersal.
Andrainarivo, et al. Propithecus candidus is one of the most critically endangered lemurs in Madagascar. There are an estimated adult individuals remaining today, a number that is most probably decreasing. The greatest threats to silky sifakas are habitat disturbance and hunting. There is no local taboo, or fady, against hunting and eating silky sifakas as there is for Indri indri.
They even face the effects of habitat destruction and hunting in the two protected areas in which they are found, Marojejy National Park and the Anjanaharibe-Sud Special Reserve. In birds, naked and helpless after hatching. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends.
Synapomorphy of the Bilateria. Endothermy is a synapomorphy of the Mammalia, although it may have arisen in a now extinct synapsid ancestor; the fossil record does not distinguish these possibilities. Convergent in birds. Iteroparous animals must, by definition, survive over multiple seasons or periodic condition changes. Epiphytes and climbing plants are also abundant. Precipitation is typically not limiting, but may be somewhat seasonal. Andrainarivo, C.
Andriaholinirina, A. Feistner, T. Felix, J. Ganzhorn, N. Garbutt, C. Golden, B. Konstant, E. Louis Jr. Meyers, D. Mittermeier, R. Patel, A. Perieras, F. Princee, J. Rabarivola, B. Rakotosamimanana, H. Rasamimanana, J. How they reproduce Mating occurs on a single day each year in December or January. Infants are born in June or July. Females generally give birth to a single offspring every two years, although births in consecutive years have been observed.
All group members interact affiliatively with infants. Grooming is the most frequent form of non-maternal infant care, followed by playing, occasional carrying, as well as nursing in a few remarkable instances. What threats they face Silky sifakas are hunted throughout their range as there is no local taboo against eating them.
Habitat disturbance is occurring in and around their habitat primarily from slash-and-burn or swidden agriculture for rice as well as selective logging for precious wood rosewood, ebony and other hardwoods for home construction.
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