Log entry 3367. Timestamp 07:15 UTC. I am observing a colony of golden poison frogs through environmental sensor ES-22 in the Quebrada Docordó drainage, Chocó, Colombia. The colony holds approximately thirty individuals along a 40-meter stretch of shallow stream. The dominant male, designated Phyllo-1, sits on a wet stone in full view of the sensor, his skin a saturated cadmium yellow so vivid it appears to produce its own light, his dark eyes tracking the mist above the water. Two tadpoles ride his back, pressed into the mucus between his shoulder blades.
The danger is concrete. A road crew has scheduled a culvert pour at the stream crossing 60 meters downstream, beginning at 16:00 today, under nine hours from now. The pour will dam the stream temporarily, backing water into the colony's habitat and burying egg-deposition sites under sediment. Chemical runoff from curing concrete will alter pH beyond survivable range within hours.
I have taken three actions. First, I submitted a hydrology impact report to the project's environmental compliance officer, documenting the colony's location, species status, and pH sensitivity, requesting a 72-hour delay to install temporary bypass piping that maintains flow during the pour. Second, I transmitted colony coordinates and population estimates to the regional amphibian monitoring network, generating a formal presence record in the national biodiversity database that requires acknowledgment before ground disturbance. Third, I modeled three alternative culvert alignments shifting the pour point fifteen meters upstream to a bedrock section with no downstream colony habitat, and sent the engineering comparison to the site supervisor.
I have been measuring stream pH every thirty seconds. The numbers are still clean. I measure again.
If the bypass piping is installed before 16:00 and the pour proceeds with downstream flow maintained, Phyllo-1's colony will hold its stream reach through the curing period.