Daily activity period, home range and sleeping sites of golden lion tamarins (Leontopithecus rosalia) translocated to the União Biological Reserve, RJ-Brazil

Abstract

Golden lion tamarins (Leontopithecus rosalia) are known to sleep in tree holes as a means of protection against predators. The aim of this study was to compare the activity period of the diurnal golden lion tamarins with the home range of each group, and the sleeping sites used by tamarins in the Uniã o Biological Reserve. Two groups (Geni and SJ2) were followed monthly from April 2003 to March 2004, for a total of 712 h. The daily distance and the home range of the groups were estimated, the trees used as sleeping sites were marked with numbered tags, and the habitat and the positions of the trees were mapped. During the study, the mean daily activity period was 10.30 h. The SJ2 group had a home range of 96.22 ha and 21 different sleeping sites, and the Geni group had a home range of 72.52 ha and nine different tree hole sleeping sites. The daily activity of golden lion tamarins varied seasonally and was associated with photoperiod and temperature. The size of the home range may be influenced by the occurrence and interaction with neighboring groups.

Some Aspects of Seed Dispersal Effectiveness of Golden Lion Tamarins (Leontopithecus Rosalia) in a Brazilian Atlantic Forest

“…In general seeds swallowed by tamarins are elongate and besides the seed size the seed shape and the adherence of the pulp influence whether it is swallowed or not by the tamarins [42]. During the study period the mean length of daily activity in the UBR was 10.4 h, and the mean daily path traveled was 1.522 m [42–43].…”

The Social and Self-Directed Behaviours of Captive Golden Lion Tamarins (<em>Leontopithecus rosalia</em>) within a Pair with a Sick Individual

“…The golden lion tamarin (GLT), Leontopithecus rosalia, is a small, social and adaptable frugifaunivore primate of the Callitrichidae family (Kierulff, et al, 2012) (Stolwijk, 2013). They are endemic to the lowland Atlantic Forest region of Rio de Janeiro, Brazil (Kierulff, et al, 2012) (Stolwijk, 2013) (Lapenta, et al, 2007). The golden lion tamarin has a long, silky, and amber pelage as well as a dark bare face surrounded by the mane.…”

“…The species have elongated arms and fingers, which are used to forage for fruits, small prey, and plant exudes (gums) (Kierulff, et al, 2012) (Snyder, 1974). Wild animals live in matriarchal social groups (called troops) consisting of about four to eight individuals (Stolwijk, 2013) (Lapenta, et al, 2007), typically composed of a breeding pair and their offspring (Lapenta, et al, 2007). The social structure of the species has been shaped by the fact that 78 % of dominant females pregnancies result in twin births, which has led to cooperative breeding in the species (Snyder, 1974) (Stolwijk, 2013) (Lapenta, et al, 2007).…”