POTENTIAL OF FEED AND FEEDING BEHAVIOR PROBOSCIS MONKEY (NASALIS LARVATUS WURMB, 1781) IN THE AREA OF FOREST TARAKAN CITY, NORTH BORNEO

• Main Author: Nursia
• Format: Theses
• Language: Indonesia
• Subjects: Ilmu hayati ; Biologi
• Online Access: https://digilib.itb.ac.id/gdl/view/36315
• Institution: Institut Teknologi Bandung

Proboscis monkey (Nasalis larvatus Wurmb, 1781) is primates that are classified very rare and endemic, that is only be found on the island of Borneo. IUCN Data renders the condition of the population conservation of proboscis monkey endangered in Appendix I of CITES. This time the sustainability of the population of primates/apes in the city of Tarakan not know. This study aims to identify potential the source of feed and adaptation proboscis monkeys to family dipterocarpaceae forest through the approach of population distribution, the relationship with the presence of feed resources, vegetation, patterns of daily activity and feeding behavior. The study in area the presence are information proboscis monkeys namely (1) Research Forest University Borneo Tarakan (December 2004-April 2015) and (2) domesticated fowl (Mangrove Conservation Area and proboscis monkeys-KKMB) Tarakan (April-May 2015). Observing the behavior of the focal animal sampling method to observe the behavior. Data characteristics and the availability of feed is done with the analysis of the vegetation using a combination of line transect and transect quadrat method. From the analysis of the vegetation there are 12 types of trees with three dominant vegetation namely Meranti White (INP : 106.72-75%), Meranti Red (INP 54,31%), Keruing (INP 26,40%). Found 45 individu proboscis monkeys (Nasalis larvatus Wurmb, 1781), at two locations study sites. Proboscis monkey can adapt to the discovery of some individual in their natural habitat. Based on analysis of daily behavior in the domesticated fowl (KKMB) there are 6 categories, with activities such as feeding (23.74%,), locomotion (25.63%), immobile (35.23%), agonistic (2.24%), interaction (10.37%) and playing (2.78%) which divided over 29 (twenty nine) behavior. During the observation of proboscis monkeys more use perepat tree (Sonneratia alba) as a feed trees and as a bed. In addition, in domesticated fowl given additional food in the form of young banana, giving a day between at 08:00 to 10:00. The potential threat from the increase in the number of people each year, especially in the coastal area create habitat for proboscis monkeys narrower. The activities in the environment domesticated fowl (KKMB) high enough and synthesised directly with community centers such as the market, settlements, cold storage, ports, sub terminal, and land areas. It can be concluded that the density factor and the diversity of the vegetation supports the abundance and distribution of proboscis monkeys, the higher the density and diversity of the vegetation and the potential the source more feed. The threat on proboscis monkeys in the Tarakan city is not much different from other areas in the earlier research, although proboscis monkeys can be found two mortgage financiers location, but because the source habitat feed narrower with the increase in population every year will threaten the sustainability of proboscis monkeys in the Tarakan city.