Eco-viaducts are built to facilitate movements of wildlife, but do they work?


A black giant squirrel utilising a wildlife crossing beneath a viaduct.

Eco-viaducts are built to facilitate movements of wildlife, but do they work as such? With that question in mind, biologist Dr Gopalasamy Reuben Clements embarked on a research with the Wildlife and National Parks Department.

Between 2011 and 2013, he monitored animal movements through camera traps at 10 viaducts each at the Aring-Tasik Kenyir road in Terengganu and at the Gerik-Kupang road which traverses the Bintang Hijau Range in Perak and Kedah. (Only three of the viaducts were specifically built for animal crossings; the rest are normal viaducts which can also function as such because of the passageway underneath.)

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