Road Ecology & Canopy Bridge


‘Habitat fragmentation’ is a recurring term upon discussions about threats to wildlife of the forest in our country. Since founded, LPP has recorded 7 incidents of roadkill involving the Dusky Langurs, and Sunda slow loris along a 1 km stretch road in Teluk Bahang, Penang, and received several roadkill incidents of other arboreal wildlife across Peninsular Malaysia, such as plantain squirrels and long-tailed macaques from the community. Roadkill rates are expected to increase as infrastructure development continues to expand across the nation.

To prevent more arboreal mammals’ lives being lost by roadkill, and to protect users of the roads, LPP initiated the “Ah Lai’s Crossing” project to install the first urban canopy bridge in Malaysia. The planning started back in November 2017 with various stakeholders and collaborators, and the bridge proposal was approved in December 2018. The bridge was completed on 28th February 2019, established on a busy road at the coastal site of Teluk Bahang, Penang. The main material of the canopy bridge is upcycled fire hose, where our collaborator, APE Malaysia, collected from the Malaysia Fire Department (BOMBA).  On top of the pole to which the firehose bridge is securely attached to, a camera trap has been set up to monitor the use of this canopy bridge

To date, three charismatic arboreal species (Plantain Squirrel, Long-tailed Macaque, and Dusky Langur) have been observed using the upcycled fire hose canopy bridge to cross the road. No roadkill has been reported around that coordinate since. A total of 2,128 wildlife crossings recorded in the 21,546 media files obtained between March 2019 to May 2020, with a total of 16,954 photos and 4,592 videos taken, equivalent to 2,296 minutes of footage.

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Fun Facts about the Dusky Langur

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