Abstract
Suwi River, which is a part of Kenohan-Suwi Wetland in East Kutai District, East Kalimantan is a habitat of endangered animals such as proboscis monkey (Nasalis larvatus). Therefore, this study aims to determine the habitat, distribution, threats, and conservation efforts of proboscis monkeys in the Suwi River. To achieve this, the boat survey method was adopted, while plot line samples were used for vegetation analysis. The results showed that the habitat is composed of riverine plant species, such as prupuk (Mallotus sumatranus; IV=121.84%), bungur (Lagerstroemia speciosa; IV=37.10%), and rengas (Gluta renghas; IV=34.76%). Furthermore, a minimum of 12 monkey groups was distributed in this area, however, their population is unknown. Illegal hunting by local people has caused population decline, this is in addition to other threats, such as habitat conversion, forest fire, and invasive plant species. The effort to protect the habitat of proboscis monkeys was made by developing Essential Ecosystem Areas Suwi-Mesangat. Other institutions that committed to protecting this area include Federal and local government, NGO, local community, and palm oil company
Highlights
Proboscis monkey (Nasalis larvatus) is one Borneo protected primates endemic
Proboscis monkeys are found along the Suwi River and its wetland surroundings
At least 60 plant species were recorded in the Kenohan-Suwi Wetland, 32 were in the vegetation analysis plot
Summary
Proboscis monkey (Nasalis larvatus) is one Borneo protected primates endemic. Their distribution is limited to the Borneo island, which includes three countries, namely Indonesia, Malaysia, and Brunei Darussalam. The Indonesian government protects proboscis monkeys based on Regulation number 7 of 1999 These monkeys are prohibited from being traded internationally and are included in Appendix I of CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora). It was included in the category of endangered species based on the Red List IUCN (International Union for Conservation of Nature and Natural Resources) [1]. Their habitat on river banks and mangrove areas is converting more rapidly into residential/agricultural areas and while aquaculture, respectively.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
