The Kadavur Slender Loris Sanctuary is home to the Loris lydekkerianus cabrera, commonly known as the Mysore slender loris. It is a subspecies of the grey slender loris (Loris lydekkerianus), an arboreal primate found in the tropical forests of southern India. Known for its unique appearance, nocturnal behaviour, and specialized adaptations, this small, elusive primate plays a crucial role in the forest ecosystems it inhabits. However, habitat loss and fragmentation caused by deforestation, agricultural expansion, and infrastructure development in the Western Ghats, have threatened this native species so much that the IUCN (International Union for Conservation of Nature) has promoted its status from “Least Concern” to “Near Threatened,” reflecting concerns over its long-term survival.

Mysore slender loris on a palm tree | Photograph by Prajwal R P

The primary threat to the Mysore slender lorises has been the loss of the forest canopy, which hampers their ability to move easily between trees. These are animals that are unable to jump more than 0.3 meters, and their anatomy is not suited for walking on the ground either. Consequently, maintaining connected tree canopies is crucial in areas with significant loris populations. When forced to move on the ground, lorises become more vulnerable to road accidents, easier to capture, and exposed to new predators, including humans.

Canopy bridges to counter slender loris roadkills

With the help of a Rapid Action Project sanctioned by Wildlife Trust of India, loris roadkill hotspots were identified along the Kadavur Slender Loris Sanctuary using both primary and secondary data. The team extensively monitored the Kadavur – Rasapatty Road, Kadavur Surumanapatty Road, Kadavur – Thargamapatty Road and other smaller un-metalled roads within Kadavur and nearby areas for loris roadkills. It was found that the Kadavur – Ayyalur road witnessed the most casualties. In the second stage of the project, artificial canopy bridges were built and tested for use by the Mysore slender loris in identified accident hotspots. Bridges were constructed using different materials including coconut husk rope and polypropylene ropes. Single, double and triple-looped and non-looped ropes were also considered for testing, followed by monthly monitoring. By the end of the third month, it was observed that the double rope with loop bridge was being used in most instances by lorises to cross the road.

Roadkill of a Mysore slender loris along Kadavur Slender Loris Sanctuary | Photograph by Prajwal R P

The study has opened doors for lorises to use alternative routes (canopy bridges) instead of crossing roads on ground, thereby reducing the risk of accidents and road kills in the study area. However, more insights are being gathered on the stability and durability of the material used for building these bridges.

The project also worked on raising public awareness around the conservation of lorises. A sensitization program called “Namma Thevangu” was launched for students in and around Kadavur. Activities included elocution, poster making, and drawing competitions.

Canopy bridges for Mysore slender loris | Photograph by Prajwal R P

Prajwal, the RAP proponent leading the project exclaims “I am extremely grateful to the Wildlife Trust of India for providing me with the Rapid Action Project. Without their funding, this study would not have been possible. Conducting a study on a nascent issue without proper funding is a challenge. However, the systematic funding and genuine support from WTI has made the study easier and less stressful.” When asked if the project provided him the opportunity to mingle with locals, he says, “When I arrived in Kadavur for my study in December, my appearance — long hair, large glasses, and camouflage attire—drew a lot of attention. Over time, I became a familiar face, and the community became aware of my purpose for being there. My growing acceptance in the area proved beneficial, as it helped me identify loris hotspot areas and gather secondary data on roadkills. People even eagerly informed me whenever they spotted a loris, and I was affectionately referred to as “antha thevangu payyan” (the slender loris guy), which eventually evolved into just “thevangu“, a nickname that I cherished!” While there has also been a unique set of challenges, Prajwal hopes that the project will help offer a safer habitat for the Malabar slender loris.

Rapid Action Projects such as this, provide urgent critical support to local individuals and organizations to nip wildlife emergencies in the bud. A series of effective outcomes through a consistent approach contribute to a larger conservation impact. If you know of a deserving individual or organization that needs support to effect conservation action on ground, get in touch with us through rap@wti.org.in.

by Raihanul Islam Sarkar, Programme Officer, Wild Aid Division