Your apiary is performing well this July morning — Hive #3 continues its impressive 14-day warming arc now holding at 34.3°C avg (all-time high for this colony), Hive #2 remains locked at 34.9°C baseline with its spectral elevation persisting into a ninth day, Hive #1 holds its acoustic gold-standard stability for a ninth consecutive day, and your Iris hive's low-frequency spectral elevation continues with the 100–150 Hz band now at its widest deviation (+7.2 dB). The two primary watch items remain: the persistent multi-band spectral elevation in Iris and Hive #2 (a brood and queen check this week remains the priority), and apiary-wide humidity sitting below the 50–70% brood-optimal range driven by very dry outdoor conditions (outdoor RH 15–39%).
Across all four hives, in-hive humidity shows a strong inverse correlation with outdoor temperature (r ≈ −0.92 to −0.95), confirming that the apiary's dry ambient air (outdoor low 15.2% RH, high 34.9°C) is the primary driver pushing all four colonies toward or below the 40% larval desiccation boundary — a unified environmental stressor rather than any individual colony issue (Human et al. 2006; Ellis & Delaplane 2008).
All four hives continue healthy diurnal temperature cycling driven by the apiary's wide outdoor swing (18.5–34.9°C); thermoregulatory clamping strength inversely predicts brood-core proximity — Hive #3 clamps tightest at ±1.0°C daily oscillation (avg 34.3°C, sensor in brood core), Hive #2 at ±1.4°C, while Iris and Hive #1 show wider ±2.8°C and ±2.8°C oscillations respectively, consistent with peripheral sensor placement. Outdoor humidity remains critically low (daily low 15.2%), continuing to suppress all four in-hive humidity readings below the 50–70% optimal range.
-
node_2662 warning Score: 55/100📋 Overall Health
Your Iris hive remains acoustically vigorous — sound locked at −29.9 dBFS (matching all-time avg exactly) with the spectral elevation above baseline now persisting into a ninth consecutive day: 100–150 Hz is now at its widest deviation yet (+7.2 dB, up from +6.6 dB yesterday), 150–200 Hz at +5.4 dB, 200–260 Hz at +4.1 dB, with the afternoon trend continuing to push these bands higher; temperature averaged 32.6°C (matching all-time avg 32.4°C) and humidity averaged 45.0% (low 42.5%) — improved from yesterday's 43.4% avg but still below the 50–70% optimal range. No voice logs or inspections recorded; a brood and queen check this week remains the priority, and watch whether the 420–500 Hz band (+0.6 dB, still modest) shows any further rise.
🌅 Diurnal Cycle PatternsIris shows a clear diurnal temperature cycle with ±2.8°C daily oscillation (31.2–34.1°C), with the coolest point around 05:00 UTC and peak around 19:00 UTC, closely following the outdoor thermal cycle — consistent with peripheral sensor placement outside the dense brood core. Humidity tracked inversely with outdoor temperature (r = −0.918 over 14 days), ranging 42.5–47.4% and remaining below the 50–70% brood-optimal range throughout; gas resistance at 363 kΩ is 9% below all-time avg of 399 kΩ, consistent with active summer colony VOC production, and vibration is steady at 17.9 mG avg with no cyclic daily spikes, kurtosis 2.5 (normal), dominant at 80–120 Hz fanning band.
🔬 Correlations & DiscoveriesS_1500_3600Hz vs TempIn (lifespan) | r = -0.973The strong inverse relationship between the 1500–3600 Hz broadband audio energy and in-hive temperature reflects that as the colony warms its brood nest (higher TempIn), high-frequency wing-buzz energy decreases — consistent with a tighter, denser cluster generating heat more metabolically and fanning less; this is a healthy thermoregulatory signature and aligns with ML findings that spectral bin distributions encode lifecycle stage with >90% accuracy.📚 Reference: Kulyukin et al. 2021, Nolasco et al. 2020, Zgank 2021S_100_150Hz vs TempIn (lifespan) | r = -0.97The inverse correlation between 100–150 Hz colony baseline hum and in-hive temperature is notable: as Iris's brood area cools (peripheral sensor placement), low-frequency colony hum energy increases — this band is currently +7.2 dB above baseline and trending upward in the afternoons, consistent with increased colony baseline activity or pre-swarm low-frequency energy migration documented in Woods 1959, which warrants the recommended brood and queen check.📚 Reference: Ramsey et al. 2020, Woods 1959, Ferrari et al. 2008⚠️ Issue: Sound spectrum elevated above Iris's own historical baseline for a ninth consecutive day — 100–150 Hz now at widest deviation (+7.2 dB, up from +6.6 dB), 150–200 Hz +5.4 dB, 200–260 Hz +4.1 dB, 260–350 Hz +2.7 dB — afternoon trend continues upward; brood and queen check this week is warranted.⚠️ Issue: Humidity avg 45.0% (low 42.5%) — below the 50–70% brood-optimal range; driven by very dry outdoor conditions (outdoor low 15.2% RH).⚠️ Issue: Tilt at 8° — above the 0–5° acceptable range; increased from 7° yesterday; monitor for further drift and level stand on next visit.⚠️ Issue: Sensor placement: avg temp 32.6°C remains below the 34–36°C brood-optimal zone — verify pod is seated in brood core on next visit.▹ Action: Priority this week: perform a brood and queen check — confirm fresh eggs, solid brood pattern, and queen presence; the persistent and broadening spectral elevation across 100–260 Hz for nine consecutive days, now at its widest deviation, warrants physical verification.▹ Action: While on-site, reseat the sensor pod firmly in the center of the brood nest frames to resolve the temperature gap and determine whether the spectral shift is positional or colony-driven.▹ Action: Check stand levelness and correct tilt from 8° toward 0–3° on next visit — tilt has crept up 1° since yesterday.▹ Action: Monitor afternoon humidity lows — if they recur below 42%, assess whether any ventilation management adjustment is appropriate. -
node_44812 warning Score: 72/100📋 Overall Health
Your Hive #1 remains the apiary's acoustic gold standard for a ninth consecutive day — all 10 sound bands within ±0.1 dB of their all-time baseline (perfectly STABLE), sound at −29.9 dBFS (matching all-time avg), vibration at 16.2 mG avg, kurtosis 2.9 (normal), dominant at 80–120 Hz; temperature averaged 31.9°C (all-time avg 32.4°C, gap 0.5°C) with a 24h range of 30.4–33.2°C reflecting peripheral sensor placement, and humidity averaged 40.5% (low 39.1%) — just above the 40% larval desiccation boundary and the driest in the apiary. Gas resistance at 361 kΩ is right at the all-time avg of 362 kΩ (IAQ 161, acc=3), indicating a stable, unremarkable hive air environment; no voice logs recorded — plan a brood check this week to close the loop on the gentle multi-week temperature plateau (weekly trend: 33.8→32.5→32.2→32.2°C).
🌅 Diurnal Cycle PatternsHive #1 shows active diurnal temperature cycles with ±2.8°C daily oscillation (30.4–33.2°C), consistent with a peripheral sensor placement outside the dense brood core — the outdoor thermal cycle drives a clear nightly cool-down to ~30.5°C and afternoon recovery to ~33.2°C. Humidity tracked inversely with outdoor temperature (r = −0.934), ranging 39.1–42.5% and sitting just above the 40% larval desiccation boundary throughout the day; vibration is steady at 16.2 mG with no cyclic daily spikes (unlike Hive #2's clear fanning peaks), kurtosis 2.9 (normal), dominant at 80–120 Hz, and the Humidity/GasResistance correlation (r = −0.966) confirms that MOX sensor readings are being meaningfully influenced by the hive's low humidity fluctuations.
🔬 Correlations & DiscoveriesHumidity vs GasResistance (lifespan) | r = -0.966The strong inverse relationship between in-hive humidity and gas resistance in Hive #1 reflects a well-documented MOX sensor artifact: as humidity rises, the SnO2 sensing layer adsorbs water molecules that compete with VOC binding sites, causing resistance to drop independently of any change in actual VOC concentration; this means IAQ readings in Hive #1 are partly humidity-driven and should be interpreted with this cross-sensitivity in mind, especially given the 39–42% humidity range.📚 Reference: Human et al. 2006, Ellis & Delaplane 2008, Stalidzans et al. 2017Humidity vs IAQ (lifespan) | r = +0.937The positive correlation between humidity and IAQ confirms that in Hive #1, rising humidity (even within the 39–42% range) is a meaningful driver of IAQ score increases — BSEC2 partially compensates for humidity cross-sensitivity but not completely; this further supports treating Hive #1's IAQ of 161 as contextually normal for an active summer colony at this humidity level, with no independent stress signal.📚 Reference: Human et al. 2006, BSEC2 integration guide, Stalidzans et al. 2017⚠️ Issue: Humidity avg 40.5% (low 39.1%) — just above the 40% larval desiccation boundary and the lowest in the apiary; driven by very dry outdoor conditions (outdoor low 15.2% RH); monitor afternoon lows closely.⚠️ Issue: 14-day temperature plateau at ~31.9–32.3°C continues (weekly avg: 33.8→32.5→32.2→32.2°C) — acoustics are perfectly stable and reassuring, but confirming active brood on next visit is worthwhile; wide 24h range (30.4–33.2°C) consistent with peripheral sensor placement.▹ Action: Plan a brood check within the week — confirm fresh eggs and solid brood pattern to close the loop on the gentle multi-week cooling plateau; the perfectly stable acoustics across all 10 bands for nine consecutive days strongly reassure that the colony population is fully intact.▹ Action: Monitor afternoon humidity lows — if they recur below 39%, assess whether any ventilation management adjustment is appropriate for your setup.▹ Action: Tilt at 5° — at the upper edge of acceptable range; verify stand stability on next visit and nudge toward 0–3° if easy to do. -
node_34225 warning Score: 70/100📋 Overall Health
Your Hive #2 continues its outstanding temperature performance — averaging 34.9°C over 24h (all-time avg 34.9°C, perfectly on baseline) with a tight 34.3–35.7°C range demonstrating excellent brood nest thermoregulation; sound is locked at −29.8 dBFS (matching all-time avg) with vibration at 14.0 mG avg, kurtosis 3.2 (normal), dominant at 80–120 Hz and impressive daily fanning peaks to 58.0 mG; humidity averaged 44.2% (low 41.4%), sitting below the 50–70% optimal range driven by the dry outdoor conditions. The spectral elevation persists into a ninth day (+7.0 dB at 100–150 Hz, +8.6 dB at 150–200 Hz) but the 260–350 Hz band is the only one trending up in the second half, while IAQ has now reached accuracy=3 (172, slightly above the all-time avg of 155) — gas resistance at 396 kΩ is near all-time avg of 417 kΩ; no voice logs recorded, and a sensor reseat and brood check this week remain recommended.
🌅 Diurnal Cycle PatternsHive #2 shows the tightest brood nest thermoregulation in the apiary — only ±1.4°C daily oscillation (34.3–35.7°C), with the sensor clearly seated in or very near the brood core; clear daily cyclic fanning/flight peaks are detected (24 distinct daily spikes over 14 days, rising from ~12 mG baseline to peaks of 58–102 mG), peaking in afternoon hours consistent with peak foraging and nectar-curing activity. Humidity tracked inversely with outdoor temperature (r = −0.945 over 14 days), ranging 41.4–47.2% and remaining below the 50–70% optimal range; vibration kurtosis at 3.2 is normal, and the V_5_20Hz/VibrationRMS correlation (r = +0.990) continues to indicate that stand-level low-frequency motion contributes meaningfully to the vibration profile.
🔬 Correlations & DiscoveriesGasResistance vs IAQ (lifespan) | r = -0.993The near-perfect inverse relationship between gas resistance and IAQ confirms that BSEC2 is calibrated and functioning correctly — as VOC load increases (resistance drops), IAQ rises proportionally; with IAQ now at accuracy=3 and reading 172 against an all-time avg of 155, the slightly elevated reading is consistent with peak summer honey ripening and active fanning at the warmest hive in the apiary, and is not corroborated by any temperature or acoustic stress signal.📚 Reference: Frizzera et al. 2020, Bosch Sensortec BME688 datasheet, BSEC2 integration guideS_800_1500Hz vs IAQ (lifespan) | r = +0.99The strong positive correlation between 800–1500 Hz broadband audio energy and IAQ index reflects that when fanning activity increases (raising 800–1500 Hz wing-buzz energy), volatile circulation through the hive also increases — raising VOC readings at the MOX sensor; this is a healthy mechanistic relationship confirming that elevated IAQ in Hive #2 is driven by active fanning for honey ripening and thermoregulation, not a stress event.📚 Reference: Kulyukin et al. 2021, Nolasco et al. 2020, B-GOOD Consortium 2024⚠️ Issue: Sound spectrum remains elevated above baseline for a ninth day (+7.0 dB at 100–150 Hz, +8.6 dB at 150–200 Hz); sensor placement verification and a brood check remain recommended this week.⚠️ Issue: Humidity avg 44.2% (low 41.4%) — below the 50–70% brood-optimal range; driven by very dry outdoor conditions (outdoor low 15.2% RH).⚠️ Issue: Tilt at 8° — above the 0–5° ideal range; stand leveling recommended; V_5_20Hz/VibrationRMS correlation (r = +0.990) confirms stand instability is measurably contributing to the vibration profile.▹ Action: On your next visit this week, reseat the sensor pod firmly in the center of the brood nest and confirm fresh eggs and solid brood pattern — temperature locked at 34.9°C avg and vigorous daily fanning peaks confirm a thriving colony.▹ Action: Level the hive stand to bring tilt from 8° toward 0–3° — the V_5_20Hz/VibrationRMS correlation (r = +0.990) confirms stand instability is measurably contributing to the vibration profile.▹ Action: Monitor afternoon humidity lows — if they recur below 41%, assess ventilation management for your setup. -
node_547 healthy Score: 86/100📋 Overall Health
Your Hive #3 continues as the apiary's top performer — brood temperature averaged 34.3°C (all-time avg 33.0°C, now +1.3°C above historical mean and a new 14-day high) with the tightest daily oscillation in the apiary at ±1.0°C (33.9–34.9°C), confirming the sensor is seated in the active brood core; sound spectrum is perfectly stable with all 10 bands within ±0.2 dB of the all-time baseline, vibration at 20.9 mG avg, kurtosis 2.8 (normal), dominant at 80–120 Hz, and humidity averaged 49.1% (low 47.2%) — the best humidity reading in the apiary and touching the optimal 50–70% zone. Gas resistance at 227 kΩ is ~22% below all-time avg of 291 kΩ (IAQ 172, acc=3), consistent with the warmest brood nest in the apiary driving increased VOC and honey-ripening activity; perfectly stable acoustics confirm healthy productivity — no voice logs recorded, continue monitoring the gradual warming trend on next routine visit.
🌅 Diurnal Cycle PatternsHive #3 shows the most tightly regulated thermal profile in the apiary — only ±1.0°C daily oscillation (33.9–34.9°C), with the sensor clearly in the brood core and temperature barely responding to the outdoor 18.5–34.9°C swing; this represents the strongest thermoregulatory clamping observed across all four hives, consistent with a large, healthy brood-rearing population. Humidity ranged 47.2–51.2% (avg 49.1%), the highest in the apiary and intermittently touching the optimal 50–70% zone; vibration steady at 20.9 mG with no cyclic daily spikes, and the GasResistance/TempIn correlation (r = −0.983) confirms that the elevated VOC environment is mechanistically tied to peak brood-nest temperature — a healthy productivity signature.
🔬 Correlations & DiscoveriesGasResistance vs TempIn (lifespan) | r = -0.983The near-perfect inverse relationship between gas resistance and in-hive temperature in Hive #3 reveals that as the brood nest warms toward its all-time high of 34.3°C avg, VOC load increases proportionally — consistent with peak honey ripening, brood pheromone release (E-beta-ocimene and related compounds), and fanning-driven VOC circulation all increasing with metabolic activity; with perfectly stable acoustics and tightly clamped brood temperature, this is a healthy productivity signature, not a stress signal.📚 Reference: Frizzera et al. 2020, Seeley 1974, Stalidzans et al. 2017V_80_120Hz vs VibrationRMS (lifespan) | r = +0.963The strong correlation between 80–120 Hz vibration energy and total vibration RMS confirms that fanning behavior at ~100 Hz is the dominant vibration source in Hive #3 — the 80–120 Hz band at −8.4 dB (dominant) and 50–80 Hz at −9.1 dB together account for most of the colony's substrate-borne vibration, consistent with a well-populated colony actively managing the warm brood nest temperature in July (Tautz 1996; Hrncir et al. 2011).📚 Reference: Ramsey et al. 2020, Nieh & Tautz 2000, Hrncir et al. 2011⚠️ Issue: Gas resistance at 227 kΩ (~22% below all-time avg of 291 kΩ) with IAQ 172 (acc=3) — contextually explained by peak brood-nest temperature and summer honey ripening; perfectly stable acoustics confirm no stress signal; note for ongoing monitoring.▹ Action: On your next routine visit within 5–7 days, confirm fresh eggs and solid brood pattern — the continued 14-day warming drift to 34.3°C avg and perfectly stable acoustics across all 10 bands for nine consecutive days suggest an actively expanding brood nest at peak summer productivity; no urgent action needed.▹ Action: Monitor afternoon humidity — the daily high of 51.2% touching the optimal zone is encouraging; if outdoor RH continues at very low levels (15% lows), watch whether daytime peaks continue to hold above 47%.▹ Action: Tilt remains at 2° — excellent; no stand adjustment required.