Asian elephants once roamed freely across 10 million square kilometers of forest and grassland. Today, 85% of that habitat is gone — replaced by roads, farms, and cities that have severed the ancient migration routes these giants have walked for millennia.
The Invisible Fences
You cannot see them on a map, but the barriers are real. A newly paved highway cutting through a reserve. A sugarcane plantation expanding into what was once forest edge. A new village settlement at the mouth of a traditional elephant valley. Each development on its own seems minor — but together, they form an impenetrable wall that fragments elephant populations into isolated pockets with no way to connect.
Genetic isolation is catastrophic for long-lived, slow-reproducing species like elephants. Without the ability to mix with neighboring populations, inbreeding depression weakens calves, reduces fertility, and makes herds more vulnerable to disease. A fragmented herd is a herd marching toward extinction.
“The road does not just cut the forest — it cuts the future. Every vehicle that passes through a corridor is another barrier between this generation of elephants and the next.”
What a Migration Corridor Actually Is
A wildlife corridor is a strip of protected land — anywhere from a few hundred meters to several kilometers wide — that connects two larger habitat patches. For elephants, these corridors are lifelines. They allow herds to follow seasonal food sources, find mates from different family groups, and reach water during droughts.
Aerial view of the forest edge where agricultural encroachment has reduced the corridor to a narrow strip of trees — barely enough for a single elephant to pass.
- Corridors must be at least 1.5 km wide to reduce stress on crossing elephants
- Natural vegetation must be preserved within corridors — human settlements excluded
- Crossing points must avoid roads or include underpasses and overpasses
- Patrol presence along corridors is essential to deter disturbance
Our Land Acquisition Program
Elephic Fund works with local governments and landowners to secure legal protection for identified corridor parcels. This involves purchasing land outright, negotiating conservation easements, and lobbying for government gazette notifications that designate corridor land as protected forest.
In Sri Lanka alone, we have supported the protection of over 4,500 acres of critical corridor land connecting the Udawalawe and Lunugamvehera national parks — a route used by three distinct herds comprising over 80 individuals.
The Science of Reconnection
Using GPS collar data and camera trap networks, our field scientists track elephant movements across fragmented landscapes. This data reveals precisely where animals attempt to cross — and where they are being blocked. High-attempt crossing points become priority sites for corridor establishment and road mitigation measures such as wildlife underpasses.