Publications by authors named "Truly Santika"

Article Synopsis
  • - The evaluation of conservation strategies is often lacking, limiting transparency and efficiency in resource allocation, especially noted in orangutan conservation efforts where about USD 1 billion was invested from 2000 to 2019.
  • - The study found that habitat protection, patrolling, and public outreach yielded the best returns on investment for orangutan population maintenance, but effectiveness varied by region due to different threats and costs.
  • - By using a new framework to analyze conservation investments, the research highlights the importance of understanding the complex relationships between funding and conservation outcomes, offering valuable insights applicable to global biodiversity efforts.
View Article and Find Full Text PDF
Article Synopsis
  • Critically endangered orangutans are translocated for various reasons, including reintroducing them to areas without wild populations and reinforcing existing ones; however, this process poses disease risks, especially during the COVID-19 pandemic.
  • During the COVID-19 pandemic, experts advised halting orangutan translocations to minimize the risk of transmitting human diseases, but some releases occurred, exposing orangutans to potential human-borne diseases.
  • The study recommends conducting a Disease Risk Analysis, enhancing pathogen surveillance, and exploring conservation strategies other than translocation, such as reducing human-orangutan interactions and protecting natural habitats.
View Article and Find Full Text PDF

Delivering the Sustainable Development Goals (SDGs) requires balancing demands on land between agriculture (SDG 2) and biodiversity (SDG 15). The production of vegetable oils and, in particular, palm oil, illustrates these competing demands and trade-offs. Palm oil accounts for ~40% of the current global annual demand for vegetable oil as food, animal feed and fuel (210 Mt), but planted oil palm covers less than 5-5.

View Article and Find Full Text PDF

A recent report, published by the Government of Indonesia with support from the Food and Agricultural Organization and Norway's International Climate and Forest Initiative, states that orangutan populations (Pongo spp.) have increased by more than 10% in Indonesia from 2015 to 2017, exceeding the government target of an annual 2% population increase [1]. This assessment is in strong contrast with recent publications that showed that the Bornean orangutan (P.

View Article and Find Full Text PDF

Unsustainable exploitation of natural resources is increasingly affecting the highly biodiverse tropics [1, 2]. Although rapid developments in remote sensing technology have permitted more precise estimates of land-cover change over large spatial scales [3-5], our knowledge about the effects of these changes on wildlife is much more sparse [6, 7]. Here we use field survey data, predictive density distribution modeling, and remote sensing to investigate the impact of resource use and land-use changes on the density distribution of Bornean orangutans (Pongo pygmaeus).

View Article and Find Full Text PDF

For many threatened species the rate and drivers of population decline are difficult to assess accurately: species' surveys are typically restricted to small geographic areas, are conducted over short time periods, and employ a wide range of survey protocols. We addressed methodological challenges for assessing change in the abundance of an endangered species. We applied novel methods for integrating field and interview survey data for the critically endangered Bornean orangutan (Pongo pygmaeus), allowing a deeper understanding of the species' persistence through time.

View Article and Find Full Text PDF