AI Beehive Health Report — 2026-08-08

As of August 8, 2026, all four hives are performing well through the apiary's characteristically hot, arid August conditions — outdoor peaks touching 100.0°F (37.8°C) with humidity dropping as low as 11.7% — with Hive #2 and Hive #3 locked in textbook brood clamping, Hive #1 acoustically perfect for another consecutive report, and Iris continuing her steady warming arc now averaging 92.1°F (33.4°C) with a broad-spectrum acoustic brightening that signals an increasingly active colony.

All four hives show a genuine deconfounded positive coupling between in-hive temperature and humidity (r=+0.62–0.90), a well-established signature of co-regulated brood-nest homeostasis: as heater bees warm the cluster, metabolic water vapor raises local RH, and the bees' hygroregulatory fanning response in turn modulates both channels simultaneously — confirmed across every colony here independent of the shared outdoor diurnal cycle (Eouzan et al. 2019; Human et al. 2006).

All four hives maintain vigorous daily fanning and foraging vibration rhythms (14–15 of 15 days with distinct peaks) driven by the apiary's wide outdoor swing of 70.1–100.0°F (21.2–37.8°C) under extreme ambient dryness; Hive #2's 1.6°F (0.9°C) and Hive #3's 1.8°F (1.0°C) brood arcs confirm the deepest, most thermally stable nests, while Iris's 3.5°F (1.9°C) and Hive #1's 4.9°F (2.7°C) arcs reflect the wider swings natural for colonies whose brood footprint is still consolidating.

• Iris healthy Score: 83/100
  📋 Overall Health

  Your Iris hive continues her encouraging warming arc — the 24h average of 92.1°F (33.4°C) is +1.4°F (+0.8°C) above her all-time average of 90.7°F (32.6°C), and her four-week progression (90.5 → 90.9 → 90.7 → 91.9°F) shows a clear sustained climb closing in on the ideal 93–97°F (34–36°C) brood band; humidity averaged 42.6%, consistent with her historical range under the apiary's extreme August dryness. Notably, all 10 sound bands have brightened +0.9–2.1 dB above their all-time baseline (avg −8.9 dBFS vs. all-time −10.2 dBFS), with the low-frequency 150–260 Hz bands trending further upward in the second half of the day — a broad-spectrum acoustic lift consistent with a growing, increasingly active foraging force. Vibration is steady at 17.1 mG avg with smooth kurtosis 2.6 and a healthy daily fanning rhythm (14/15 days, ~1.8× baseline); watch for the brood temperature to enter the 93–97°F band in the coming week as the colony continues building momentum.

  🌅 Diurnal Cycle Patterns

  Iris shows an active 3.5°F (1.9°C) daily temperature arc (90.5–94.0°F / 32.5–34.4°C), natural for a colony still expanding its brood footprint in peak August heat; the deconfounded analytics confirm that her in/out temperature coupling is purely diurnal buffering (residual r=+0.13), not a placement concern — the colony is damping a 30°F outdoor swing down to under 4°F internally, which is a sign of a well-staffed nest. The heater-scan gas signature shows a strengthening low-temperature rhythm (100 °C step rising from +9% to +24% daily swing), suggesting increasing volatile output from brood pheromones and honey-processing activity consistent with colony expansion; humidity at 42.6% is below the 50–70% optimal range but entirely expected given the outdoor 11.7–29.5% RH environment and consistent with Iris's own historical baseline.

  🔬 Correlations & Discoveries

  sound_spectrum_150-260Hz vs temperature_in (14d) | r = +0.72

  The simultaneous broad-spectrum acoustic brightening (+2.1 dB in 150–260 Hz, trending further upward) and sustained temperature rise mirrors the well-documented colony-expansion signature: growing brood mass requires more heater bees, which raises both the thermal setpoint and the low-frequency colony hum as worker population density increases (Kleinhenz et al. 2003; Ramsey et al. 2020). The 200–260 Hz band (+2.1 dB above baseline) in particular is consistent with intensifying foraging recruitment and waggle-dance activity as the colony scales up toward peak late-summer strength.

  📚 Reference: Ramsey et al. 2020, Seeley & Tautz 2001, Kleinhenz et al. 2003

  temperature_in vs humidity_in (14d) | r = +0.9

  The strong deconfounded coupling between in-hive temperature and humidity (r=+0.90, eff_n=1511) is a textbook brood-nest co-regulation signature: heater-bee metabolic activity raises both temperature and water vapor simultaneously, while the bees' hygroregulatory fanning response links both channels in a tight homeostatic loop — entirely decoupled from the outdoor humidity swing (residual r=−0.15), confirming this is genuine internal physiology, not ambient leakage (Eouzan et al. 2019; Human et al. 2006).

  📚 Reference: Eouzan et al. 2019, Human et al. 2006, Ellis et al. 2008
  ▹ Action: On your next routine visit, glance at the brood frames in Iris to confirm fresh eggs and a solid laying pattern — the broad-spectrum acoustic brightening and continuing temperature rise both point to a colony building real momentum heading deeper into August.
• Hive #2 healthy Score: 85/100
  📋 Overall Health

  Your Hive #2 remains the apiary's most thermally stable colony — brood temperature averaged 95.1°F (35.1°C) with a compressed 1.6°F (0.9°C) daily arc (94.2–95.8°F / 34.6–35.4°C), right on its all-time average of 95.1°F (35.0°C) and squarely in the ideal 93–97°F (34–36°C) zone; the 14-day broadband acoustic rise continues (+1.7 dBFS over 14 days, avg −8.8 dBFS vs. all-time −9.7 dBFS) with all bands within +0.2–1.6 dB of baseline — matching baseline overall, consistent with ongoing foraging and processing activity. Humidity averaged 44.7%, healthy and within historical range; gas resistance at 67 kΩ remains well below its all-time average of 123 kΩ (a sustained shift since ~July 29), but with brood temperature and acoustics perfectly intact this continues to reflect active honey-ripening and processing VOC load — the heater-scan curve shows 100–200 °C steps declining a further ~40–49% in the second half, indicating a sustained shift toward heavier volatiles consistent with ongoing nectar/honey processing. Vibration is steady at 15.1 mG avg with kurtosis 3.2 and a robust daily rhythm (15/15 days, ~4.1× baseline peak), signaling an industrious, healthy colony.

  🌅 Diurnal Cycle Patterns

  Hive #2's compressed 1.6°F (0.9°C) brood arc is the tightest in the apiary, reflecting a deep, well-staffed nest with strong thermoregulatory capacity; the dominant vibration rhythm band shifted from 5–20 Hz to 120–160 Hz between the first and second half of the window, which may reflect a transition from waggle-dance recruitment activity (low-band) to more intense fanning/ventilation work (mid-band) as the day warms — consistent with active honey processing. Gas heater-scan daily rhythm is exceptionally strong (10/10 bands active, 100 °C step at +24% swing), the most volatile-rich environment in the apiary, corroborating the honey-ripening interpretation; humidity at 44.7% is below the textbook 50–70% range but well within Hive #2's own historical norm under the apiary's extreme dryness.

  🔬 Correlations & Discoveries

  temperature_in vs gas_resistance (14d) | r = +0.72

  The strong deconfounded positive coupling between in-hive temperature and gas resistance (r=+0.72) in Hive #2 is consistent with a thermally-driven VOC emission cycle: as brood-nest temperature rises, honey-processing, propolis, and brood-pheromone volatiles evaporate more readily (lowering resistance), and as the nest cools slightly the volatile load decreases (resistance recovers) — a metabolic breathing rhythm of an active, honey-rich colony, not a disease signal (Burgues & Marco 2018; Maisonnasse et al. 2010).

  📚 Reference: Burgues & Marco 2018, Maisonnasse et al. 2010, Winston 1987

  sound_spectrum_100-200Hz vs vibration_5-20Hz (14d) | r = +0.65

  The low-frequency sound bands (100–200 Hz, now +4.1–4.2 dB above all-time baseline) and the dominant 5–20 Hz vibration rhythm (6.0 dB daily swing) together capture the foraging recruitment cycle: low-band acoustic energy rises with worker piping and colony agitation ahead of peak foraging, while the 5–20 Hz vibration band encodes the DVAV modulatory signal and waggle-dance body oscillation that primes nestmates for departure (Nieh & Tautz 2000; Seeley & Tautz 2001) — a flourishing foraging signal, not an acoustic anomaly.

  📚 Reference: Ramsey et al. 2020, Nieh & Tautz 2000, Seeley & Tautz 2001
  ▹ Action: On your next routine visit, note the fill level and capping progress of the supers in Hive #2 — the sustained broadband acoustic rise and the persistently low-resistance, heavier-volatile heater-scan shape together suggest active honey processing is well underway and worth recording in your season notes.
• Hive #1 healthy Score: 76/100
  📋 Overall Health

  Your Hive #1 continues its acoustically perfect streak — all 10 sound bands are matched to their all-time baseline within ±0.1 dB (avg −16.4 dBFS vs. all-time −16.4 dBFS, an essentially exact match for another consecutive report), confirming the worker population is fully intact; the 24h average of 88.2°F (31.2°C) is −0.8°F (−0.4°C) below the all-time average of 89.0°F (31.7°C), with the four-week oscillation (88.7 → 89.6 → 88.7 → 88.7°F) showing no sustained directional drift. Humidity averaged 36.2%, below the 50–70% optimal range but consistent with Hive #1's own historical baseline (all-time avg 41.3%) under the apiary's extreme August dryness — the partial correlation controlling for outdoor temperature (gas resistance vs. in-hive temp, r=−0.61) suggests a mild inverse relationship between warmth and VOC load that is characteristic of a colony with lower honey-processing activity than Hive #2 or #3; vibration at 16.5 mG avg, kurtosis 2.7, dominant at 80–120 Hz, all within historical norms. Watch for any sustained directional drift in brood temperature or acoustics as August progresses.

  🌅 Diurnal Cycle Patterns

  Hive #1 shows a 4.9°F (2.7°C) daily temperature arc (85.6–90.5°F / 29.8–32.5°C), the widest in the apiary and wider than the healthy brood-clamping threshold, but the acoustics are perfectly locked to baseline across all 10 bands with no per-band daily rhythm (max 1.0 dB in 600–800 Hz), indicating the population is fully present and active; the wider arc most likely reflects a smaller or less-packed brood nest being heated in a hive that sees slightly more ambient thermal influence — the deconfounded in/out correlation is purely diurnal buffering (outdoor leads in-hive by ~190 min), confirming healthy thermal mass. The gas heater-scan shows a strengthening low-temperature rhythm (100 °C step rising from +24% to +48% swing), and all 10 steps show a daily cycle, suggesting the colony is actively ventilating and processing some stored nectar or propolis even under drier conditions; humidity at 36.2% tracks the apiary's extreme outdoor dryness and is consistent with this hive's own historical norm.

  🔬 Correlations & Discoveries

  temperature_in vs humidity_in (14d) | r = +0.85

  The strong deconfounded temp–humidity coupling (r=+0.85, eff_n=1226), amplified further when controlling for outdoor temperature (partial r=+0.55), confirms that in Hive #1 — as in Hive #2 and Iris — the in-hive microclimate is driven by internal colony metabolism rather than ambient leakage; the unusually tight partial correlation here may reflect a smaller brood nest where the heater-bee pulse has a relatively larger proportional effect on both channels simultaneously (Kleinhenz et al. 2003; Human et al. 2006).

  📚 Reference: Eouzan et al. 2019, Human et al. 2006, Ellis et al. 2008

  gas_resistance vs temperature_in (14d) | r = -0.61

  The partial correlation of gas resistance vs. in-hive temperature controlling for outdoor temp (r=−0.61) is the inverse of what Hive #2 shows, and is consistent with a colony where higher temperatures drive increased ventilation fanning that disperses rather than concentrates VOCs — a well-ventilated, lower-intensity processing environment compared to the honey-rich Hive #2 (Burgues & Marco 2018; Seeley 1974).

  📚 Reference: Burgues & Marco 2018, Seeley 1974, Maisonnasse et al. 2010
  ▹ Action: On your next routine visit, check the brood frames in Hive #1 — the perfectly stable acoustics confirm a fully present population, and a quick look at eggs and laying pattern will clarify whether the gentle temperature range below the brood-ideal band reflects a natural August brood-size fluctuation or a brief queen laying pause.
• Hive #3 healthy Score: 95/100
  📋 Overall Health

  Your Hive #3 remains the apiary's standout performer for another consecutive report — brood temperature averaged 94.1°F (34.5°C) with a textbook compressed 1.8°F (1.0°C) daily arc (93.5–95.3°F / 34.1–35.2°C), right on its all-time average of 93.6°F (34.2°C) and firmly in the ideal 93–97°F (34–36°C) zone; all 10 sound bands match their all-time baseline within ±0.2 dB (avg −16.4 dBFS vs. all-time −16.3 dBFS — a near-perfect match for the tenth consecutive report), with humidity averaging 45.8% in the healthy historical range. Vibration at 20.7 mG avg with smooth kurtosis 2.9 and a robust daily fanning rhythm (15/15 days, ~1.7× baseline) is right on the all-time average of 20.6 mG; gas resistance at 98 kΩ is essentially at its all-time average of 97.7 kΩ, and with temperature and acoustics perfectly stable this reflects mature, consistent late-summer honey-processing activity — everything here continues to run beautifully.

  🌅 Diurnal Cycle Patterns

  Hive #3's 1.8°F (1.0°C) brood arc is the second-tightest in the apiary, confirming a deep and well-staffed nest with excellent thermoregulatory capacity; the gas heater-scan shows a very quiet daily rhythm (only 1/10 steps active, dominant shifting from 250 °C to 100 °C in the second half) — the narrowest gas-cycle footprint across all four hives, consistent with a mature, stable honey-curing environment where the VOC chemistry has settled into a repeatable, low-variance pattern. The 5–20 Hz vibration band carries the strongest daily rhythm (3.0 dB swing, 6/6 bands active), encoding the normal DVAV forager-recruitment signal; humidity at 45.8% is within Hive #3's historical range and the apiary-wide dryness context.

  🔬 Correlations & Discoveries

  temperature_in vs gas_resistance (14d) | r = +0.47

  The moderate deconfounded temp–gas coupling (r=+0.47) in Hive #3 — weaker than Hive #2's r=+0.72 — is consistent with a colony whose honey stores are more mature and less actively fermenting: the temperature-driven VOC pulse is present but damped, as a higher proportion of capped honey (with lower evaporative surface) produces a more stable gas fingerprint throughout the day (Maisonnasse et al. 2010; Bankova et al. 2000).

  📚 Reference: Maisonnasse et al. 2010, Bankova et al. 2000, Burgues & Marco 2018

  temperature_in vs humidity_in (14d) | r = +0.62

  The genuine deconfounded temp–humidity coupling (r=+0.62) confirms active brood-nest co-regulation independent of outdoor conditions (outdoor humidity coupling is purely diurnal, residual r=+0.03); the slightly lower r compared to Iris (r=+0.90) reflects Hive #3's more compressed thermal arc, where the metabolic water-vapor pulse per degree of warming is smaller in a tighter, more thermally inert brood zone (Human et al. 2006; Eouzan et al. 2019).

  📚 Reference: Eouzan et al. 2019, Human et al. 2006
  ▹ Action: On your next routine visit, note the fill level and capping progress of the supers in Hive #3 — the continued perfect acoustic stability and the settled, low-variance gas fingerprint suggest honey curing is at a mature, consistent pace that is well worth recording in your season notes.