Thomas’s Langur Presbytis thomasi

Thomas's Langur Presbytis thomasi

Thomas’s Langur Presbytis thomasi

Vulnerable

Sumatra, Indonesia

The Thomas’s Langur is a species of primate that has been recorded from undisturbed primary rainforest near Ketambe Research Station in Sumatra (Sterck et al. 2005). They have also been recorded from a mosaic of primary and secondary forest with rubber plantations on its fringes (Wich and de Vries 2006), and in rubber tree plantations (Gurmaya 1986). Also found in lowland alluvial, riparian forests. Despite their presence in lowland alluvial and riparian habitats, their densities are higher in swamp forest compared to the former and tolerate selectively logged forest.

They live in ranges in elevation from 0 to approximately 1,500 m. Known to occur in elevations of 1,500-2,400 m and in lower sub-alpine zone up to 3,400 m in the Leuser Ecosystem.

The Thomas’s Langur is vulnerable on @IUCNredlist due to forest clearance for #palmoil in #Sumatra #Indonesia. Protect this beautiful #monkey with a #Boycott4Wildlife on brands destroying forests

Hunting does not seem to be a significant threat, but loss of primary habitat due to logging and conversion to oil palm plantations is probably displacing some populations.

IUCN Red List

Though protected by the local Batak traditional and religious taboos, there is some ‘marginal’ hunting pressure in the other parts of their distribution. The Thomas’s Langur is considered Vulnerable due to past and continued population declines, estimated at more that 30% over the past 40 years (three generations) due to loss of habitat, especially to logging and oil palm plantations. Due to continuing threats, the Thomas’s Langur is suspected to decline at the same rate over the next one generation.

Further Information

IUCN Status Vulnerable

Setiawan, A. & Traeholt, C. 2020. Presbytis thomasi. The IUCN Red List of Threatened Species 2020: e.T18132A17954139. https://dx.doi.org/10.2305/IUCN.UK.2020-2.RLTS.T18132A17954139.en. Downloaded on 24 January 2021.


How can I help the #Boycott4Wildlife?

Contribute in five ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

Join 11,292 other followers

2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

Published by Palm Oil Detectives

Hi, I’m Palm Oil Detective’s Editor in Chief. Palm Oil Detectives is partly a consumer website about palm oil in products and partly an online community for writers, artists and musicians to showcase their work and express their love for endangered species. I have a strong voice for creatures great and small threatened by deforestation. With our collective power we can shift the greed of the retail industry and influence big palm oil to stop cutting down forests. Be bold! Be courageous! Join me and stand up for the animals with your art and your supermarket choices!

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: