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http://survve.bid/nzvekV_4nhyAMvI381PZYr6DM9XK4TXHwpOZOa35Fllf Common ringtail possums live a gregarious lifestyle which centres on their communal nests also called dreys. Ringtail possums build nests from tree branches and occasionally use tree hollows. A communal nest is made up of an adult female and an adult male their dependant offspring and immature offspring of the previous year. A group of ringtail possums may build several dreys at different sites. Ringtail possums are territorial and will drive away any strange conspecifics from their nests. A group has a strong attachment to their site. In one experiment in which a group was removed from their territory it remained uncolonised for the following two years. Ringtail possum nests tend to be more common in low scrub and less common in heavily timbered areas with little under-story. Dreys contribute to the survival of the young when they are no longer carried on their motherâs back As a marsupial the common ringtail possum carries its young in a pouch where it develops. Depending on the area the mating season can take place anywhere between April and December. The majority of the young are born between May and July. The oestrous cycle of ringtail possum lasts days. It is both polyoestrous and polyovular. If a female prematurely loses her litter she can return to oestrous and produce a second litter in October as a replacement if conditions are right. The average litter is made up two young and very occasionally triplets. Common ringtail possum young tend to grow relatively slowly due to dilute milk with low lipid levels that is provided to the young. As with other marsupials the common ringtail possumâs milk changes through lactation. During the second phase of lactation more solid foods are eaten especially when the young first emerges from the pouch. During this time concentration of carbohydrates while those of protein and lipid reach their highest. The long lactation of the ringtail possums may give the young more time to learn skills in the communal nest as well as to climb and forage in the trees. The young are first able to vocalise and open their eyes between and days of age. They leave their mothers pouch at â days. However lactation usually continues until â days after birth but sometimes ends by days. Both sexes become sexually mature in the first mating season after their birth.
