Rapport TABMON
Recording activity
The microphones record acoustic activity 24 hours a day in 5-minute files and send them via 4G. The following figure shows the number of recordings received per day for each recorder in the area. Under normal operating conditions, we should receive 288 files per recorder per day (green line).
The lack of recordings is most often due to a poor connection in the area, but can also be caused by power supply problems (solar panel or battery) or microphone malfunctions.
Detected species
We are currently using BirdNET to detect bird species present in the recordings. The recordings are divided into 3-second segments before being analysed. For each segment, BirdNET provides a confidence score between 0 and 1 for each species. The following figures show the number of detections per species with a confidence score above 0.8.
The number of detections corresponds to the number of 3-second segments in which the species is detected. The following graph shows the number of detections per species in the area over the entire period. It should be noted that throughout the document, the number of detections is displayed on a logarithmic scale. These data should be treated with caution, particularly for species that have only been detected a few times. These are raw results provided by BirdNET, which have not been manually verified. In addition, BirdNET’s performance can vary greatly from one species to another.
Daily trends
The following figure shows the daily activity of each species, indicating the number of detections per hour. Only species with more than 10 detections in total are displayed. Please note that the time shown is UTC time, which is two hours behind our summer time and one hour behind our winter time (e.g. 12:00 UTC = 14:00 in summer).
TABMON deployment trend (cluster level)
The following figure shows the evolution of detections day by day for the entire cluster. Only species with more than 10 detections in total are displayed.
TABMON deployment trend (device level)
The following figure shows the evolution of detections day by day for the entire cluster. Only species with more than 10 detections in total are displayed.
