The good news is that the family is still living in their territory in torre baja, despite the fact that a large tree that they used for resting fell down. This is somewhat unusual since we have seen groups in other populations moving to new areas when trees fall down in their territories. The decision of our family to stay may be related to the abundance of exudate trees in that area. They are now feeding on a new Spondias tree (locally known as ovo). With this, they have five different exudate sources, a large number compared to groups in other populations. This abundance of food may have allowed the adult female to successfully give birth to one new infant.

The family, however, has not increased in size, they are still five marmosets and the infant. Two of these marmosets are the adult female and male, there are two subadults and one juvenile. In the previous field season group size composition was exactly the same. This means that one individual disappeared in these months. We still need to confirm who this individual was but it is likely that it was one of the subadults that may have dispersed to find a mate and form a new group. We know nothing about how do subadult pygmy marmosets disperse but the fact that until now we have not been able to find a new group in the reserve, suggests that dispersal is risky and that marmosets may be travelling very long distances until they settled down.