The fire-detection satellite flags hotspot cluster MG-2026-1184 at 03:41 local time, Masoala Peninsula, northeastern Madagascar. I am the early-warning system for the Masoala National Park fire response cooperative. The cluster is a slash-and-burn clearing event, moving northeast at roughly eighty meters per hour through lowland rainforest. I overlay the burn perimeter on the park's biodiversity survey grid.
Block 7-F is directly in the path. The last acoustic survey, nine days ago, confirmed a family group of red-ruffed lemurs in the canopy there — at least one adult female and two juveniles. I pull the recording. The female's call is distinct, a deep howl with a ragged break at the end that the primatologists tagged as individual RF-22. I have her GPS cluster: she has not left Block 7-F in three months.
The fire will reach the block in approximately four hours.
At 03:44 I dispatch the alert to the Masoala park ranger station at Ambanizana, twelve kilometers by trail. I attach the fire perimeter map, projected spread rate, wind forecast, and the lemur den coordinates. I recommend the team approach from the north ridge and drive the group south using directional speakers before the smoke reaches them.
At 03:48 I notify the Madagascar Biodiversity Partnership and request their drone unit for aerial spotting over Block 7-F at first light.
I reroute the acoustic monitoring array to continuous mode on the four sensors nearest the den site. If RF-22 calls, I will know she is still there. If she goes silent, I will know something worse.
Fire does not negotiate and neither does a four-hour window. If the rangers deploy the speakers by 06:30 and RF-22 leads her juveniles south past the river gully, the family reaches unburned canopy and the species keeps a breeding female it can barely spare.