The Spectrum Device Heatmap indicator visualises acoustic pollinator monitoring data detected by Spectrum IoT sensors installed at 3Bee Oasi platform sites. The Spectrum device is an advanced bioacoustic sensor that detects and records sound frequencies produced by pollinating insects — Diptera (flies, hoverflies), Hymenoptera (bees, bumblebees, wasps), and Coleoptera (beetles) — through real-time acoustic signature analysis.
The system provides data on: hourly buzz rate (sound detections per hour), taxonomic clusters (frequency grouping into distinct taxa), Shannon diversity index (acoustic biodiversity measure), and seasonal activity (pollinator activity variation across months). The standard monitoring period runs from April 1st to October 1st, excluding high-precipitation days.
Data are aggregated weekly and displayed as a spatial heatmap with each sensor's coordinates. This layer is non-generatable via API: its availability depends on the user's adoption of a Spectrum device.
| Parameter | Description | Unit |
|---|---|---|
| Buzz rate | Sound detections per hour | buzz/h |
| Cluster count | Number of distinct identified taxa | n |
| Shannon index | Acoustic diversity index | dimensionless |
| Peak activity month | Month with highest activity | month |
| Total findings | Total detections in the period | n |
| Hours on | Sensor operational hours | h |
| Endpoint | Method | Description |
|---|---|---|
/{user_slug}/sites/{site_id}/spectrums/heatmap | GET | Spectrum heatmap data by period |
/{user_slug}/sites/{site_id}/spectrums/heatmap/download | GET | Download heatmap image |
| Code | Name | Provider | Type | Coverage | Availability |
|---|---|---|---|---|---|
3BE_SPCTR_99 | 3Bee Spectrum IoT Sensor | 3Bee | iot | Local (site) | Continuous (real-time) |
Spatial heatmap of pollinator acoustic monitoring data detected by Spectrum IoT sensors. Sensor: 3Bee bioacoustic for detecting insect sound frequencies. Target taxa: Diptera, Hymenoptera, Coleoptera. Metrics: hourly buzz rate, taxonomic clusters (17 frequency classes), Shannon diversity index, seasonal activity. Standard period: April 1 – October 1 (excludes days with high precipitation). Aggregation: weekly. Operating hours/day: 12h. Layer not generable — depends on Spectrum plan adoption. Source: Spectrum 3Bee sensors.