Populasi dan Karakteristik Habitat Tarsius (Cephalopachus bancanus borneanus) di Punggualas, Taman Nasional Sebangau

Tarsier (Cephalopachus bancanus borneanus) is one of the endemic primates in Kalimantan. IUCN (International Union for the Conservation of Nature and Natural Resources) has established the conservation status of Cephalopachus bancanus borneanus as a vulnerable primate. This research was conducted in the Punggualas area, Sebangau National Park, from June to August 2019. The data collected was the number and distribution of tarsier population along with the composition and structure of vegetation. This study revealed that tarsiers in Punggualas have a tendency to live solitary. A total of 6 tarsier individuals were found in an area of ??4 km2, with a total length of 22 km of transects. The population in the scope of the study area is 23 individuals who occupy an area of ??4 km2 with a population density of 5,682 individuals / km2. The density of vegetation in Punggualas reaches 1179 individuals per hectare at the sapling level, where this area is a suitable habitat for shelter, locomoting, and as sleeping site for Tarsiers.

Spider Monkeys Rule the Roost: Ateline Sleeping Sites Influence Rainforest Heterogeneity

The sleeping site behavior of Ateline primates has been of interest since the 1980s, yet limited focus has been given to their influence upon other rainforest species. Here, we use a combination of arboreal and terrestrial camera traps, and dung beetle pitfall traps, to characterize spider monkey sleeping site use and quantify the impact of their associated latrines on terrestrial vertebrate and dung beetle activity. We also characterize the physical characteristics of the sleeping sites and the floristic and soil composition of latrines beneath them. Spider monkey activity at sleeping sites peaked at dawn and dusk and group composition varied by sex of the adults detected. The habitat-use of terrestrial fauna (vertebrates and dung beetles) differed between latrine sites and non-latrine controls, underpinned by species-specific changes in the relative abundance of several seed-dispersing species (such as paca and great curassow). Seedling density was higher in latrines than in non-latrine controls. Although most soil properties were similar between latrines and controls, potassium and manganese concentrations were different. These results suggest that spider monkey sleeping site fidelity leads to a hotspot of ecological activity in latrines and downstream impacts on rainforest floristic composition and diversity.

Sleeping aggregation of an oil-collecting bee, Centris (Paracentris) xanthomelaena Moure & Castro (Hymenoptera: Apidae: Centridini)

Sleep aggregations have been registered for some species of solitary bees and wasps. In this note we describe the aggregation behaviour of Centris xanthomelaena Moure & Castro bees in their inactive periods. The dormitories were discovered close to the bee nesting sites, in a Caatinga area. We monitored the males and females at the sleeping site for 16 consecutive days in July 2017. We observed that females of C. xanthomelaena spent the night outside their nests, indry branches of Mimosa tenuifl ora (Fabaceae). Furthermore, males and females have shared the dormitories, and sometimes they formed mixed ones. Both males and females fl ew around the nearest dormitories during all observation days. The data about the sleep behaviour of C. xanthomelaena will contribute to the understanding of these aspects within the Centris genus.