Spix's night monkey

The Spix's Nachtaffe ( Aotus vociferans ) is a primate of the group of night monkeys ( Aotidae ). He is expected within this family of Grey -throated group, which summarizes the urtümlicheren, north of the Amazon fauna.

Features

Spix's night monkey, like all night monkeys relatively small primates with large, adapted to the nocturnal lifestyle eyes. With around 0.7 kilograms, they are among the smaller members of their species. Their fur is gray brown on the back and on the outside of the limbs, the abdomen and the inside of limbs are reddish - brown. The rear part of the long tail is dark colored. The brown eyes are surrounded by white boxes, stretch out along the head three dark stripes, each one outside of each eye and one on the forehead to the nose. From other night monkeys they differ in that the two outer strips meet at the back and in the number of chromosomes.

Distribution and habitat

Spix's night monkey live in the western Amazon basin. Its distribution area covers the north-western Brazil ( north of the Amazon and west of the Rio Negro), southeastern Colombia, eastern Ecuador and northern Peru. Their habitat is forests, often low-lying rainforests in 200 to 900 meters above sea level, but also mountain forests up to 1500 meters.

Way of life

Like all night monkeys they are nocturnal and usually stay up in the trees. There, they move away on all fours and jumping. They prefer to sleep back in the hollows of trees or plants thickets. They live in monogamous family groups of two to five animals and inhabit solid grounds, which they defend against conspecifics.

The main food of these animals consists of fruits, besides they also eat leaves and insects. Avoid through their nocturnal lifestyle they compete with diurnal, more dominant species.

Endangering

Spix's night monkey have a large, sparsely populated area of ​​distribution. Larger risks are not known, the IUCN lists them as " not at risk " ( least concern ).