A study to classify wild bees' signal using time series analysis

Publisher:
Society of Acoustics
Publication Type:
Conference Proceeding
Citation:
Proceedings of the International Congress on Sound and Vibration, 2024
Issue Date:
2024-01-01
Full metadata record
Bees (Anthophila) are among the most effective pollinators in nature being responsible for approximately one-third of the total crop pollination for human dietary supply. The interaction between plants and bees plays here an essential role and may also include vibro-acoustic signals as an important medium of information transmission. Plants have been shown to respond to airborne acoustic signals of flying pollinators by increasing the sugar concentration in the nectar. Yet very little is known about the pollinators vibro-acoustic signatures and plant-relevant effective traits of the signal. Here we present an analysis framework of acoustic signals for three different bee species, namely Rhodanthidium sticticum, Amegilla quadrifasciata, and Apis mellifera, recorded in the rural areas (Chera, Chulilla, and Macastre) of the Province of Valencia, Spain, visiting Antirrhinum (snapdragon) plants. First, from audio-visual recordings, audio signals for different bee behaviours during visits were identified. We showed that periodogram and recurrence-based spectrograms could be used to classify real-life bio-acoustic data recorded outdoors. This approach can also be used to predict future data sets for which a traditional approach like spectral analysis is unsuitable, especially for noisy, more nonlinear, and complex data.
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