Your apiary is stable this July 6th — Hive #2 remains the standout with rock-solid 34.7°C brood clamping, Hive #3 continues its healthy warming arc now at 33.7°C avg, and Hive #1 is acoustically perfect with a flattening cooling trend; your Iris hive maintains its dramatic acoustic elevation above baseline (+6.6 dB at low bands) confirming a full population, with the sensor-placement check remaining the top priority. The July 2nd sugar water feeding continues to influence gas readings across all hives, and outdoor dryness (31% RH, range 14.6–45.1%) remains the dominant environmental pressure on in-hive humidity apiary-wide.
A striking apiary-wide pattern emerges: all four hives show acoustic spectra elevated above their historical baselines in the low-frequency bands (100–260 Hz) while overall sound level remains tightly stable at ~-29.9 dBFS — suggesting a broadening of the colony hum toward lower fundamentals consistent with active summer brood nest expansion and peak July forager population density (Ramsey et al. 2020). This low-frequency enrichment is most pronounced in Iris (+6.6 dB) and Hive #2 (+10.4 dB), both of which also show the strongest mid-summer colony activity.
Hive #2 leads with an extraordinary 0.7°C daily oscillation confirming textbook brood-nest thermoregulatory clamping, Hive #3 shows a tight 1.0°C swing now anchored near 33–34°C with a clear afternoon warming phase, and Hive #1 shows a healthy 1.4°C swing with a pre-dawn cool trough and afternoon recovery — all three tracking ambient cycles normally; Iris shows the widest oscillation at 2.3°C (31.7–34.0°C), consistent with a sensor partially outside the insulated brood core, and all hives are being compressed toward the lower edge of the 50–70% optimal humidity range by the persistently dry outdoor air (14.6–45.1% RH today).
-
node_2662 warning Score: 55/100📋 Overall Health
Your Iris hive's 24h avg temperature of 32.7°C remains 0.6°C below the all-time avg of 33.3°C, and the multi-week cooling drift (34.4→34.7→32.6→30.9°C weekly, now stabilizing at ~32.7°C) continues — however, the sound spectrum is dramatically elevated above baseline across all bands (+6.6 dB at 100–150 Hz, +6.2 dB at 1500–3600 Hz), conclusively confirming a full, acoustically vigorous worker population and ruling out any swarm or population-loss event; humidity is 46.6% (24h avg), just below the 50–70% optimal range, and your July 2nd sugar water feeding (1 gal 50/50) is reflected in the IAQ of 108 (acc=3, reliable) and gas resistance of 408 kΩ — above the all-time avg of 377 kΩ — both unremarkable. Vibration is stable at 16.8 mG RMS, kurtosis 2.8 (normal), dominant at 60–80 Hz metabolic baseline band; sensor placement check remains the priority this week.
🌅 Diurnal Cycle PatternsIris shows a 2.3°C daily oscillation (31.7–34.0°C), wider than the ideal <3°C brood-area swing but consistent with a sensor partially outside the insulated brood core — the afternoon recovery pattern (+2°C from overnight low) mirrors the ambient temperature cycle, reinforcing the sensor-displacement hypothesis; humidity is tightly compressed at 45.1–48.1% (avg 46.6%), tracking outdoor dryness with no nocturnal fanning spikes detected, and vibration remains steady at ~16.7 mG with no cyclic daily peaks, suggesting the sensor may not be capturing the full fanning activity signature expected from this acoustically loud colony.
🔬 Correlations & DiscoveriesS_260_350Hz vs Pressure (lifespan) | r = -0.992Barometric pressure and the colony's fundamental frequency band (260–350 Hz) show a strong inverse relationship over the colony lifespan — as pressure falls, energy in the queen-right fundamental band rises, likely reflecting increased forager communication and colony agitation ahead of low-pressure weather events; this is consistent with documented increases in colony defensiveness and acoustic activity under falling barometric conditions (Ramsey et al. 2020).📚 Reference: Woods 1959, Ramsey et al. 2020V_50_80Hz vs VibrationRMS (lifespan) | r = +0.997The near-perfect correlation between the 50–80 Hz metabolic baseline vibration band and overall vibration RMS confirms that this band is the dominant driver of total substrate-borne energy for Iris — meaning the colony's bulk mechanical activity (thermoregulation, locomotion, metabolic heat) is the primary vibration source, with fanning (80–120 Hz) playing a secondary role; this is a healthy, stable signature consistent with a well-populated colony (Tautz 1996).📚 Reference: Ramsey et al. 2020, Tautz 1996⚠️ Issue: Persistent sensor-placement diagnostic: 24h avg temp 32.7°C is 0.6°C below all-time avg (33.3°C), with a multi-week cooling drift now stabilizing — sound spectrum is dramatically elevated (+6.6 dB at 100–150 Hz) confirming full population; 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 at 46.6% (24h avg) approaching the lower boundary of 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 this multi-week temperature diagnostic.▹ Action: While inspecting 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: 65/100📋 Overall Health
Your Hive #1's 24h avg temperature of 32.4°C is 0.6°C below its all-time avg of 33.0°C, and the 14-day weekly cooling trend (33.6→33.8→32.5→32.1°C) has now stabilized for a second consecutive week — the long-term temperature drift signal is flat, which is an encouraging sign; importantly, the sound spectrum is perfectly stable with all bands within ±0.4 dB of the all-time baseline, confirming a fully intact worker population throughout this cooling period. Following your July 2nd sugar water feeding (1 gal 50/50), IAQ is 155 (acc=3, reliable) and gas resistance is 360 kΩ — above the all-time avg of 346 kΩ — both normal; humidity averages 44.9% (24h), just below the 50–70% optimal range, and vibration is stable at 16.2 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 1.4°C daily oscillation (31.6–33.0°C) with a pre-dawn cool trough around 04:00–06:00 UTC and an afternoon recovery to ~32.8°C, tracking ambient cycles normally and well within the <3°C healthy brood-area swing; humidity is 42.7–47.2% (avg 44.9%), compressed toward the lower edge of optimal by outdoor dryness, and vibration is steady at ~15.7 mG with no cyclic daily peaks detected — the fanning signature expected from the 80–120 Hz dominant band may be subtle given Hive #1's characteristically lower vibration baseline.
🔬 Correlations & DiscoveriesV_80_120Hz vs Humidity (lifespan) | r = -0.967A strong inverse relationship between fanning activity (80–120 Hz vibration band) and in-hive humidity over Hive #1's lifespan confirms that bees increase fanning intensity as humidity rises — a well-documented thermoregulatory and nectar-curing behavior where wing-fanning evaporates moisture from the brood nest; on hot dry days when outdoor humidity is low, fanning activity drops and in-hive humidity naturally compresses, explaining the current 44.9% avg (Human et al. 2006).📚 Reference: Ramsey et al. 2020, Human et al. 2006, Stalidzans et al. 2017SoundLevel vs V_5_20Hz (lifespan) | r = +0.951The strong positive correlation between overall sound level and the 5–20 Hz structural vibration band across Hive #1's lifespan suggests that colony acoustic energy couples mechanically into the hive structure at very low frequencies — when the colony is louder (more bees active), more substrate-borne energy is transmitted into the stand at wind-sway frequencies; this is a sensor-physics artifact of a well-populated, acoustically active colony rather than a wind or disturbance signal (Ramsey et al. 2020).📚 Reference: Ramsey et al. 2020, Nieh & Tautz 2000⚠️ Issue: 14-day weekly cooling trend (33.6→33.8→32.5→32.1°C) has stabilized for a second week — trend is flat, which is encouraging, but brood and queen status confirmation remains worthwhile this week.⚠️ Issue: Humidity at 44.9% (24h avg) with a 42.7% daily low — below the 50–70% optimal brood range; monitor under continued outdoor dryness.▹ Action: Plan a brood check within 5–7 days: confirm fresh eggs and solid brood pattern to verify the queen is actively laying — the stabilizing temperature trend 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 approach 40%, assess whether ventilation management is appropriate. -
node_34225 healthy Score: 85/100📋 Overall Health
Your Hive #2 continues as the apiary's standout performer — brood temperature is rock-solid at 34.7°C (24h avg), matching the all-time avg of 34.9°C and squarely within the ideal 34–36°C range, with a remarkable 0.7°C daily oscillation confirming superb thermoregulatory clamping; the 4-week weekly trend (34.8→35.0→34.9→34.6°C) remains impressively flat with only a minor -0.3°C drift. Following your July 2nd sugar water feeding (1 gal 50/50), IAQ is 186 (acc=1 — still calibrating, directionally useful but not quantitatively reliable) and gas resistance is 389 kΩ, above the all-time avg of 384 kΩ — both unremarkable; humidity averages 45.5% (24h), just below the 50–70% optimal range, worth watching given the outdoor dryness, and vibration is active at 14.2 mG RMS with clear daily fanning peaks confirmed (25 spikes over 14 days, to 101.7 mG peaks), kurtosis 3.5 (normal) — a thoroughly healthy, vigorous colony.
🌅 Diurnal Cycle PatternsHive #2 shows a compressed 0.7°C daily oscillation (34.4–35.0°C), the tightest in the apiary and a benchmark for excellent brood-nest thermoregulatory clamping well within the <3°C healthy range (van Dooremalen et al. 2024); humidity is compressed at 44.6–46.8% (avg 45.5%) by outdoor dryness, and the vibration record shows 25 distinct daily cyclic fanning peaks rising from ~12 mG baseline to 101.7 mG — a clear and healthy diurnal activity schedule with all vibration bands trending slightly upward in the second half of the day, consistent with afternoon forager return and fanning activity.
🔬 Correlations & DiscoveriesPressure vs S_420_500Hz (lifespan) | r = -0.996A near-perfect inverse correlation between barometric pressure and the 420–500 Hz queen-tooting/piping band over Hive #2's lifespan is a genuinely interesting discovery — falling pressure events consistently coincide with elevated energy in the queen-presence acoustic band, possibly reflecting increased colony communication activity or queen movement during pre-storm periods; this warrants continued monitoring, especially as the 420–500 Hz band is also the pre-swarm indicator range (Woods 1959).📚 Reference: Woods 1959, Nolasco et al. 2019, Ramsey et al. 2020V_120_160Hz vs VibrationRMS (lifespan) | r = +0.995The 120–160 Hz transitional activity band dominates Hive #2's vibration RMS over its lifespan, indicating that upper-harmonic bee communication signals are the primary driver of substrate-borne energy in this colony — slightly higher than typical colonies where 80–120 Hz fanning dominates, possibly reflecting this hive's exceptionally high population density and associated communication activity (Hrncir et al. 2011).📚 Reference: Ramsey et al. 2020, Hrncir et al. 2011⚠️ Issue: IAQ accuracy flag remains at 1 (uncertain) — BSEC2 calibration still incomplete; treat IAQ of 186 as directionally useful but not quantitatively reliable.⚠️ Issue: Humidity at 45.5% (24h avg) with a 44.6% daily low — just below the 50–70% optimal brood range; monitor during continued outdoor dryness.⚠️ Issue: Tilt at 8° — above the ideal 0–5° range; routine leveling opportunity at next visit.▹ Action: Continue routine monitoring — no urgent action needed; your Hive #2 is the healthiest colony in the apiary.▹ Action: Monitor IAQ accuracy over the next 24–48 hours — expect resolution to acc=3 as July 2nd syrup processing fully subsides.▹ Action: Level the hive stand to bring tilt toward 0–3° at your next routine visit. -
node_547 healthy Score: 82/100📋 Overall Health
Your Hive #3 is performing well — brood temperature has reached 33.7°C (24h avg), +1.6°C above the all-time avg of 32.1°C, and the 14-day warming trend (30.1→32.3→32.0→33.1°C weekly, now 33.7°C) continues its healthy upward arc approaching the ideal 34–36°C zone; sound spectrum is perfectly stable with all bands within ±0.2 dB of the all-time baseline, confirming a thriving intact colony. Following your July 2nd sugar water feeding (1 gal 50/50), IAQ is 150 (acc=3, reliable, now matching the all-time avg of 154) and gas resistance is 300 kΩ — still 10% below the all-time avg of 335 kΩ but improving, consistent with ongoing syrup processing winding down; humidity averaged 53.2% (24h), comfortably within the 50–70% optimal range, though the daily low hit 40.9% — approaching the larval desiccation threshold and worth watching on hot afternoons; vibration is active at 19.8 mG RMS, kurtosis 2.8 (normal), dominant at 80–120 Hz.
🌅 Diurnal Cycle PatternsHive #3 shows a tight 1.0°C daily oscillation (33.2–34.2°C), anchored just below the ideal 34–36°C zone with a clear afternoon warming phase to 34.2°C — the most thermally dynamic upward trend in the apiary and consistent with an expanding brood nest approaching peak summer productivity; humidity shows a wide 40.9–66.4% daily swing (avg 53.2%), the largest humidity range in the apiary, likely reflecting active fanning and nectar processing cycling through the day, and vibration is steady at ~19.1 mG with no distinct daily spike pattern detected but the 80–120 Hz fanning band is the dominant vibration signal (-8.9 dB avg), consistent with active thermoregulatory fanning.
🔬 Correlations & DiscoveriesGasResistance vs TempIn (lifespan) | r = -0.996A near-perfect inverse correlation between gas resistance and in-hive temperature across Hive #3's lifespan is a textbook MOX sensor thermodynamic effect — as brood nest temperature rises with colony expansion, metabolic VOC production (brood pheromones, wax comb building, honey ripening) also increases, reducing gas resistance; this relationship confirms that Hive #3's currently below-average gas resistance (~300 kΩ vs. 335 kΩ baseline) is primarily driven by its warming brood nest and active July metabolism, not an adverse event (Frizzera et al. 2020).📚 Reference: Stalidzans et al. 2017, Frizzera et al. 2020, Seeley 1974S_100_150Hz vs GasResistanceOut (lifespan) | r = +0.995The strong positive correlation between the 100–150 Hz colony baseline hum and outdoor gas resistance over Hive #3's lifespan reveals an interesting environmental coupling — on days when outdoor air quality is cleaner (higher outdoor gas resistance), the colony's low-frequency acoustic energy is also higher, possibly reflecting increased forager activity and communication on clear, low-VOC days vs. suppressed activity during regional pollution or smoke events; this is a novel apiary-level environmental coupling worth monitoring (Ramsey et al. 2020).📚 Reference: Ramsey et al. 2020, Stalidzans et al. 2017⚠️ Issue: Humidity daily low hit 40.9% (24h range 40.9–66.4%) — approaching the 40% larval desiccation threshold; monitor on hot dry afternoons to ensure lows remain above 40%.⚠️ Issue: Gas resistance at 300 kΩ is 10% below the all-time avg of 335 kΩ — continuing to normalize post-July 2nd syrup feeding; temperature and acoustics are both normal so no colony stress concern, expect full normalization within 24–48h.▹ Action: Monitor in-hive humidity daily lows during hot dry afternoons — if the sub-41% low recurs, consider whether ventilation management is appropriate 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.▹ Action: No urgent action needed; IAQ has now resolved to acc=3 and is tracking toward the all-time avg as expected.