Your apiary is in solid shape this July 7th — Hive #3 has crossed into the ideal brood range at 33.4°C avg and continues its healthy warming arc, Hive #1 remains acoustically perfect with a stable temperature plateau, and Iris continues to show a full vigorous population confirmed by dramatically elevated acoustics; Hive #2 has gone offline (no telemetry in 24h) and needs a connectivity check. The July 2nd sugar water feeding continues to provide context for gas readings across all hives, and the persistently dry outdoor air (22.1% RH, range 13.3–38.6%) remains the dominant environmental pressure on in-hive humidity apiary-wide.
Across Hive #3, the strong lifespan correlation between gas resistance and in-hive temperature (r = -0.981) reflects how warmer brood nests drive increased fanning and volatile circulation — a textbook coupling of thermoregulation and VOC dynamics documented by Stalidzans et al. 2017. Meanwhile, Iris's persistent acoustic elevation (+6.9 dB at 100–150 Hz above its own baseline) co-occurring with a below-baseline temperature reading continues to support the sensor-displacement hypothesis rather than any population change.
Hive #3 leads with the tightest brood clamping (1.4°C daily swing, 32.6–34.2°C), closely followed by Hive #1 (1.9°C swing) and Iris (3.3°C swing, consistent with partial sensor displacement outside the brood core) — all three tracking ambient diurnal cycles normally with afternoon warming peaks and pre-dawn troughs; the extreme outdoor dryness (13.3–38.6% RH range) is compressing in-hive humidity toward and below the 50% lower boundary for Iris and Hive #1, while Hive #3 shows a notably wider humidity swing (34.9–63.8%) suggesting better moisture retention or a different sensor position.
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node_2662 warning Score: 55/100📋 Overall Health
Your Iris hive's 24h avg temperature of 32.3°C is now 0.9°C below its all-time avg of 33.2°C, and the multi-week cooling drift (34.2→34.7→32.6→31.2°C weekly) continues its slow descent — however, the sound spectrum remains dramatically elevated above baseline (+6.9 dB at 100–150 Hz, +6.4 dB at 1500–3600 Hz), conclusively confirming a full, acoustically vigorous worker population and ruling out any swarm or population-loss event; your July 2nd sugar water feeding (1 gal 50/50) is consistent with the IAQ of 112 (acc=3, reliable) and gas resistance of 405 kΩ — both near the all-time avg of 380 kΩ and unremarkable. Humidity averaged 45.7% (24h), slightly below the 50–70% optimal range under persistent outdoor dryness, vibration is stable at 18.3 mG RMS, kurtosis 2.8 (normal), dominant at 80–120 Hz fanning band — sensor placement check remains the priority this week.
🌅 Diurnal Cycle PatternsIris shows a 3.3°C daily oscillation (30.8–33.9°C) with a clear pre-dawn trough around 30.9°C and an afternoon peak near 33.9°C, tracking ambient cycles — this wider-than-ideal swing (healthy brood nests show <3°C) is consistent with the sensor sitting partially outside the insulated brood core; humidity holds a narrow band (43.8–47.7%, avg 45.7%), being compressed below the 50% optimal floor by outdoor dryness (13.3–38.6% RH), and sound is rock-steady at -29.9 dBFS across both halves of the day with no nocturnal anomalies.
🔬 Correlations & Discoveriessound_spectrum_100_150Hz vs sound_spectrum_1500_3600Hz vs temperature (lifespan) | r = +0.69Iris shows a persistent decoupling: acoustic energy is dramatically elevated (+6.9 dB at 100–150 Hz above its own baseline) while brood temperature drifts below the all-time avg — in a healthy colony, higher bee density produces both higher heat and higher sound; the fact that sound is rising while temperature falls points to sensor displacement (bees are present and vocal, but the sensor is no longer sitting in the warmest brood core), consistent with van Dooremalen et al. 2024 findings that population density correlates with both heat and substrate vibration signatures.📚 Reference: Ramsey et al. 2020, van Dooremalen et al. 2024 (B-GOOD Project)GasResistanceOut vs tilt (lifespan) | r = +0.992The near-perfect lifespan correlation between outdoor gas resistance and hive tilt (r = 0.992) is almost certainly a shared diurnal driver — both outdoor VOC load and minor hive stand flex track ambient temperature cycles — rather than any physical causal link; tilt remains stable at 7° (unchanged from prior report) and outdoor gas resistance at 285 kΩ is healthy clean-air baseline, so no structural concern is indicated.📚 Reference: Bosch Sensortec BME688 datasheet⚠️ Issue: Persistent sensor-placement diagnostic: 24h avg temp 32.3°C is 0.9°C below all-time avg (33.2°C) with a multi-week cooling drift (34.2→34.7→32.6→31.2°C weekly) — sound spectrum dramatically elevated (+6.9 dB at 100–150 Hz) confirms full population intact; sensor displacement from brood core remains the primary explanation.⚠️ Issue: Tilt at 7° — above the ideal 0–5° range; minor stand leveling recommended at next visit.⚠️ Issue: Humidity avg 45.7% (24h low 43.8%) — below the 50–70% optimal brood range under persistent outdoor dryness; monitor daily lows.▹ Action: PRIORITY this week: Physically verify sensor pod placement — confirm it is seated in the warm center of the brood nest, not slipped into a honey super, frame gap, or hive periphery; correcting placement will likely resolve the multi-week temperature diagnostic.▹ Action: While checking sensor placement, confirm fresh eggs and solid brood pattern to verify queen status — acoustics strongly confirm the adult population is fully present.▹ Action: Level the hive stand to bring tilt toward 0–3° during your next visit. -
node_44812 warning Score: 67/100📋 Overall Health
Your Hive #1's 24h avg temperature of 31.9°C is 1.1°C below its all-time avg of 33.0°C, and the 14-day weekly cooling trend (33.6→33.8→32.5→32.2°C) remains stable for a third consecutive week — the long-term plateau is reassuring; critically, the sound spectrum is perfectly stable with all bands within ±0.2 dB of the all-time baseline (max deviation only 0.2 dB), confirming a fully intact worker population throughout this cooling period. Your July 2nd sugar water feeding (1 gal 50/50) is reflected in the IAQ of 159 (acc=3, reliable), which sits slightly below the all-time avg of 168 and is unremarkable; humidity averaged 41.4% (24h low 40.0%) — at the lower boundary of the 50–70% optimal range and worth monitoring, and vibration is stable at 15.9 mG RMS, kurtosis 2.6 (normal), dominant at 80–120 Hz fanning band — a brood check this week to confirm queen status remains a worthwhile step.
🌅 Diurnal Cycle PatternsHive #1 shows a healthy 1.9°C daily oscillation (30.8–32.9°C) with a clear pre-dawn trough around 30.8°C and a gradual afternoon recovery to 32.9°C, tracking ambient cycles normally; humidity is compressed to a narrow 40.0–42.7% band (avg 41.4%) — persistently below the 50% optimal floor driven by outdoor dryness (13.3–38.6% RH) — and sound holds rock-steady at -29.9 dBFS across both halves of the day with no nocturnal anomalies and no diurnal vibration spikes detected.
🔬 Correlations & DiscoveriesIAQ vs GasResistance (lifespan) | r = -0.956The strong inverse lifespan correlation between IAQ and gas resistance (r = -0.956) is the expected MOX sensor physics: as reducing VOCs (from sugar syrup processing, honey ripening, and summer fanning) increase, SnO2 resistance falls and BSEC2 IAQ rises in proportion — this is a sensor calibration confirmation, not a health signal, and both metrics remain within normal bounds for an active summer colony processing supplemental feed.📚 Reference: Bosch Sensortec BME688 datasheet, BSEC2 integration guide, Frizzera et al. 2020S_1500_3600Hz vs Humidity (lifespan) | r = +0.93The lifespan correlation between high-frequency sound energy (1500–3600 Hz) and in-hive humidity (r = +0.930) likely reflects shared diurnal drivers: afternoon peaks in bee flight and fanning activity simultaneously increase wing-beat acoustic energy and evaporate moisture into the hive air, creating a correlated rise in both signals — consistent with Stalidzans et al. 2017 diurnal acoustic-metabolic coupling research.📚 Reference: Stalidzans et al. 2017, Human et al. 2006⚠️ Issue: 14-day weekly cooling trend (33.6→33.8→32.5→32.2°C) plateaued for third consecutive week at ~1.1°C below all-time avg — trend is flat and sound is perfectly stable, but brood and queen status confirmation remains worthwhile this week.⚠️ Issue: Humidity avg 41.4% (24h low 40.0%) — at the lower boundary of the 50–70% optimal brood range; daily lows are touching the 40% larval desiccation threshold.▹ Action: Plan a brood check within 5–7 days: confirm fresh eggs and solid brood pattern to verify the queen is actively laying — the stable temperature plateau with perfectly stable acoustics is reassuring but a quick look will close the loop.▹ Action: Monitor in-hive humidity daily lows during hot dry afternoons — if lows consistently touch or drop below 40%, assess whether ventilation management adjustments are appropriate for your setup. -
node_34225 warning Score: 60/100📋 Overall Health
Your Hive #2 has sent no telemetry in the last 24 hours — the sensor node appears to be offline or has lost connectivity, and this needs a connectivity check at your next visit; the all-time baseline remains strong (avg 34.9°C, sound -29.8 dB avg, stable 4-week temp trend 34.8→35.0→34.9→34.6°C) confirming this was a thoroughly healthy colony as of its last reading. Your July 2nd sugar water feeding (1 gal 50/50) was noted apiary-wide and had been reflected in the elevated IAQ readings prior to going offline — no colony health concern is implied by the data gap alone.
🌅 Diurnal Cycle PatternsNo 24h data available for diurnal cycle analysis — last confirmed pattern (from prior reports) showed an extraordinary 0.8°C daily oscillation confirming textbook brood-nest thermoregulatory clamping, with 25 distinct daily fanning/flight vibration peaks over 14 days rising from 12.2 mG to 101.7 mG peaks; these patterns should be reconfirmed once telemetry is restored.
🔬 Correlations & DiscoveriesV_160_200Hz vs V_120_160Hz vs V_80_120Hz vs VibrationRMS (14d) | r = +0.906Hive #2's strong correlation between upper vibration bands (80–200 Hz) and overall RMS (r = 0.90–0.91) reflects that fanning and flight-prep activity — which peaks in the 80–120 Hz band per Tautz 1996 — dominates this hive's vibrational energy profile; the 25 confirmed daily fanning spikes (12→101.7 mG) are a textbook healthy summer colony signature, consistent with Ramsey et al. 2020 lifecycle prediction models.📚 Reference: Ramsey et al. 2020, Hrncir et al. 2011, Tautz 1996⚠️ Issue: Hive #2 sensor node offline — no telemetry received in the last 24 hours; connectivity or power issue requires investigation at next visit.▹ Action: Check Hive #2 sensor node connectivity and power at your next visit — confirm the node is powered on, has network connectivity, and that the battery (all-time low 3074 mV) has not discharged.▹ Action: Once telemetry is restored, confirm the 4-week stable temperature trend and strong acoustic baseline are continuing as expected. -
node_547 healthy Score: 82/100📋 Overall Health
Your Hive #3 is performing excellently — brood temperature has reached 33.4°C (24h avg), now +1.1°C above the all-time avg of 32.3°C and approaching the ideal 34–36°C zone, with the 14-day warming trend (31.0→32.3→32.0→33.2°C weekly, now 33.4°C) continuing its healthy upward arc; sound spectrum is perfectly stable with all bands within ±0.1 dB of the all-time baseline, confirming a thriving intact colony. Your July 2nd sugar water feeding (1 gal 50/50) is reflected in the IAQ of 182 (acc=3, reliable) and gas resistance of 260 kΩ — still ~21% below the all-time avg of 330 kΩ, consistent with active syrup processing and summer fanning; humidity averaged 52.9% (24h), comfortably within the 50–70% optimal range, though the daily low hit 34.9% — a notable drop worth watching, and vibration is active at 20.0 mG RMS, kurtosis 2.8 (normal), dominant at 80–120 Hz.
🌅 Diurnal Cycle PatternsHive #3 shows the tightest brood clamping in the apiary at 1.4°C daily oscillation (32.6–34.2°C), with a pre-dawn trough near 32.6°C and a stable afternoon plateau around 33.8–34.2°C — excellent thermoregulatory control; humidity shows a wide diurnal swing (34.9–63.8%, avg 52.9%), likely reflecting afternoon fanning driving moisture evaporation and overnight condensation recovery — the 34.9% daily low is notably lower than yesterday's 40.9% low and warrants monitoring, and sound holds perfectly steady at -29.9 dBFS with no nocturnal anomalies.
🔬 Correlations & DiscoveriesGasResistance vs TempIn (lifespan) | r = -0.981The strong lifespan inverse correlation between gas resistance and in-hive temperature (r = -0.981) in Hive #3 reflects a well-documented thermoregulatory VOC coupling: as the brood nest warms during active rearing, increased fanning circulates more hive volatiles (brood pheromones, honey ripening esters, propolis terpenes) past the sensor, driving resistance down in proportion to metabolic activity — consistent with Stalidzans et al. 2017 and confirming the warming trend is accompanied by healthy colony metabolic intensification, not disease.📚 Reference: Stalidzans et al. 2017, Frizzera et al. 2020, Human et al. 2006V_80_120Hz vs HumidityOut (lifespan) | r = -0.982The strong inverse lifespan correlation between 80–120 Hz fanning vibration and outdoor humidity (r = -0.982) captures a logical thermoregulatory response: on hot dry days (low outdoor RH), bees intensify fanning both for cooling and moisture management, increasing substrate vibration in the 80–120 Hz wing-beat band — per Tautz 1996, bees fan at ~100 Hz specifically for thermoregulation and nectar curing, and drier outdoor conditions demand more intensive fanning effort.📚 Reference: Tautz 1996, Stalidzans et al. 2017⚠️ Issue: Humidity daily low hit 34.9% (24h range 34.9–63.8%) — lower than yesterday's 40.9% low and approaching the 40% larval desiccation threshold; monitor afternoon lows closely.⚠️ Issue: Gas resistance at 260 kΩ is ~21% below the all-time avg of 330 kΩ — consistent with ongoing syrup processing from July 2nd feeding and active summer fanning; temperature and acoustics are both normal so no colony stress concern, but watch for normalization over the next 48–72h.▹ Action: Monitor in-hive humidity daily lows during hot dry afternoons closely — the 34.9% low today is the lowest recorded for this hive and approaching the larval desiccation threshold; if lows recur below 38%, assess ventilation management for your setup.▹ Action: On your next routine visit within 5–7 days, confirm fresh eggs and solid brood pattern — the continued warming trend and perfectly stable acoustics suggest an actively expanding brood nest approaching peak summer productivity; no urgent action needed.