METRIC · COLONY HEALTH
Brood Temperature (BRT)
Core brood-nest temperature maintained by the colony. Deviations signal thermoregulation failure or population collapse.
Colony HealthUnit: °CLive
Formula
Median temperature of in-comb probes within the brood nest.
Thresholds & Bands
| Band | Range | State |
|---|---|---|
| Optimal | 34.5-35.5 | ok |
| Marginal | 33-34.5 or 35.5-36 | warn |
| Out of range | < 33 or > 36 | crit |