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Acoustic sensitivity of fly antennae
1Laboratory of Bioacoustics, Institute for Zoology, University of Zürich, Winterthurerstr. 190, CH 8057, Zurich, Switzerland
Journal of Insect Physiology
|May 29, 2003
Summary
Higher flies (Brachycera) widely use their antennae for hearing, sensing sound vibrations. This antenna-based audition is common across 120,000 species, impacting communication and flight.
Area of Science:
- Entomology
- Sensory Biology
- Bioacoustics
Background:
- Higher flies (Brachycera) possess similar antennal structures with specialized sensory organs.
- Auditory function was previously limited to specific families like Drosophilidae and Tephritidae.
- The mechanosensory capabilities of fly antennae suggest potential roles beyond known functions.
Purpose of the Study:
- To investigate the prevalence of sound detection using antennae in a broader range of higher fly species.
- To determine if antennal audition is a widespread sensory capacity within the Brachycera suborder.
- To explore the functional implications of antenna-based hearing in flies.
Main Methods:
- Documenting antennal mechanical sensitivity to sound across diverse fly species.
- Comparative analysis of antennal morphology and sensory organ elaboration in Brachycera.
- Reviewing existing literature on fly sensory systems and acoustic communication.
Main Results:
- Antennal mechanical sensitivity to sound is confirmed in a wide array of fly species.
- This auditory capacity extends to approximately 120,000 species of higher Diptera.
- Antenna-based audition appears to be a ubiquitous sensory modality in this group.
Conclusions:
- Antenna-based audition is a widespread and fundamental sensory capacity in higher flies.
- This sensory modality likely plays crucial roles in intraspecific acoustic signaling, flight control, and potentially echolocation.
- The findings necessitate a re-evaluation of sensory ecology in Diptera, highlighting the antennae as key auditory organs.