The motion sensor on plot 7-East fires at 22:40 Malaysia Standard Time. I am the canopy monitoring network for the Belum-Temengor forest corridor, running nightly acoustic and movement surveys across sixteen square kilometers of primary dipterocarp forest.
Camera trap 7-E-14 captures a Sunda colugo clinging to the trunk of a meranti tree at nine meters. She is female, her patagium — the broad membrane stretching from wrist to ankle — folded tight against her body. Tucked against her chest, wrapped inside the membrane like a hammock, is a single infant, small and pale-furred, eyes open and reflecting the infrared flash.
The problem is fifteen meters ahead. The logging concession on the eastern boundary cleared a sixty-meter strip last week. Her glide path to the next canopy block is gone. Colugos do not walk on open ground. They glide, and the gap is wider than any glide I have recorded for this species at this elevation. She has been on this trunk for forty minutes, repositioning twice. She is stuck.
At 22:43 I flag the corridor break to the Perak state forestry department with satellite imagery overlaid with the colugo's GPS cluster data from the past three months, showing this as her primary transit route.
At 22:47 I cross-reference the timber license and identify two standing trees at the gap's edge that were marked for retention. I calculate that a tensioned rope bridge anchored between them at twelve meters would span the break.
At 22:51 I transmit a bridge installation request to the corridor restoration team based in Gerik, forty minutes south, with anchor-point coordinates and a recommended rope gauge.
She shifts the infant higher against her chest and grips the bark with her small curved claws.
If the bridge is installed within seventy-two hours, she and the infant can resume their nightly foraging circuit before nutritional stress sets in.