Vulnerability of multi-designated landscape and its connectivity toward conservation: A case study in Kampar Kerumutan, Riau, Indonesia

Indonesia is declared by the United Nations as a country that meets its conservation targets. However, Indonesia has not maximized the potential conservation of its territory, and the ecosystem is still threatened by anthropogenic activity, particularly due to small and large scales cultivation. Besides, the Government of Indonesia (GoI) built taskforces at the national level to avoid greenhouse gas emissions through FOLU Net Sink 2030 that could tackle climate and biodiversity crises. Therefore, identifying OECMs and creating a sustainable management framework by elaborating on the carbon pool and its dynamics across the Indonesian landscape is crucial to meet the targets of the global conservation agenda. Kampar Kerumutan Landscape (KKL) is one of the critical landscapes in Indonesia with high potential conservation for biodiversity and high intervention from various concessions. Our result showed that most KKLs were categorized as potential restoration areas. Industrial forest plantations (IFP) had the highest threat for conservation. To connect the potential highly conserved areas within KKL for species mobility, restoration projects (particularly in IFP, Protected Areas, and Non-managed areas) should be conducted to achieve human and nature balance in the KKL

Monthly range of adolescent orangutans (Pongo pygmaeus wurmbii) based on fruit availability in Tuanan Orangutan Research Station, Central Kalimantan, Indonesia

Adolescent orangutans become competitors with mothers supporting newborn infants. Thus, adolescent orangutans must coordinate with other orangutans in order to find fruit. How adolescent orangutans respond is reflected in the size and utilization of their home range area. The aims of our research were to determine (i) fruit availability, as an important component of orangutan diet, (ii) and the effect of fruit availability on home range use by adolescent orangutan. This research was conducted from August 2013 to July 2014 in Tuanan Orangutan Research Station, Central Kalimantan. The fruit trail method was used to estimate abundance of fruits (both from trees and lianas).Fallen fruit on census trails was assessed once per month, while focal animal sampling was used to estimate the home range by tagging a GPS point every 30 minutes during the tracking of an orangutan. In total, 62 tree and 15 liana species included in the known orangutan diet were fruiting during this study period. The highest period of fruit abundance for orangutan food occurred in November until January. Adolescent orangutans responded by increasing their monthly ranging area during this time of high fruit availability and decreased their range when fruit vailability was low. Adolescent orangutans often used areas in their monthly range that had a high to medium abundance of fruit trees. When the number of trees bearing fruit decreased (low period), adolescent orangutans changed their monthly range to areas that consisted of mediu

Safeguarding Asian tapir habitat in Sumatra, Indonesia

The Asian tapir Tapirus indicus is the only tapir species in Southeast Asia. It is declining across its range and is categorized as Endangered on the IUCN Red List. The forests of Sumatra are critical to Asian tapir conservation as they contain some of the last remaining populations of the species, yet conservation efforts are hindered by a lack of information on habitat suitability. We collated camera-trap data from nine landscapes across 69,500 km2 of Sumatran rainforest to help predict suitable habitat for Asian tapirs on the island. Predictions from Bayesian occupancy models demonstrated that tapir occupancy was greatest in forests below 600 m elevation and exclusively in forests with high aboveground biomass. Forests around the Barisan Mountains on the west of Sumatra provide the most suitable habitat for the species. Only 36% of the most critical habitat (i.e. the top 20th percentile of predicted occupancy) for tapirs is formally protected for conservation, with much of the remainder found in forests allocated to watershed protection (35%) or logging (23%). We highlight several key areas in Sumatra where tapir conservation could be bolstered, such as by leveraging existing conservation efforts for other charismatic flagships species on the island