Reproductive biology

Aye-ayes are a polygynous group that sleep and forage solitarily, and in contrast to all other lemurs, mating can occur in different months of the year (October, February, December, May). Ten days prior to full estrus, as determined by genital swelling, females increase scent-marking frequency and often visit nests occupied by males, a behavior not seen outside the mating season. During the three days of estrus, females call repeatedly, starting well before dusk. Up to six males surround the calling female, with the males engaging in agonistic chases and biting. Eventually one male will copulate with the female, maintaining hold of the female for about an hour. The pair are suspended by their back feet from a branch during the long copulation. After copulating, females travel quickly 1,640-1,970 ft (500-600 m) and call again. Females mate with more than one male on the first day. The gestation is 4-5 months. The infant remains in a nest with the mother for the first weeks, and lactation continues for two years. Age at first birth is 36-48 months, with an interbirth interval of 24-36 months. Only one offspring is born at one time.

0 0

Post a comment