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Text
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URL Address
<a href="http://doi.org/10.1242/jeb.033183" target="_blank" rel="noreferrer noopener">http://doi.org/10.1242/jeb.033183</a>
Pages
4056–4064
Volume
212
Dublin Core
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Title
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The cost of assuming the life history of a host: acoustic startle in the parasitoid fly Ormia ochracea.
Publisher
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The Journal of experimental biology
Date
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2009
2009-12
Subject
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Female; Male; Animals; Auditory Perception/physiology; Walking/physiology; Ultrasonics; *Acoustics; Diptera/*physiology; Gryllidae/*growth & development/*parasitology; Life Cycle Stages/*physiology; Parasites/*physiology; Reflex; Animal/physiology; Startle/*physiology; Vocalization; Flight
Creator
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Rosen M J; Levin E C; Hoy R R
Description
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In the obligatory reproductive dependence of a parasite on its host, the parasite must trade the benefit of 'outsourcing' functions like reproduction for the risk of assuming hazards associated with the host. In the present study, we report behavioral adaptations of a parasitic fly, Ormia ochracea, that resemble those of its cricket hosts. Ormia females home in on the male cricket's songs and deposit larvae, which burrow into the cricket, feed and emerge to pupate. Because male crickets call at night, gravid female Ormia in search of hosts are subject to bat predation, in much the same way as female crickets are when responding to male song. We show that Ormia has evolved the same evasive behavior as have crickets: an acoustic startle response to bat-like ultrasound that manifests clearly only during flight. Furthermore, like crickets, Ormia has a sharp response boundary between the frequencies of song and bat cries, resembling categorical perception first described in the context of human speech.
Identifier
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<a href="http://doi.org/10.1242/jeb.033183" target="_blank" rel="noreferrer noopener">10.1242/jeb.033183</a>
Rights
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Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
*Acoustics
2009
Animal/physiology
Animals
Auditory Perception/physiology
Department of Anatomy & Neurobiology
Diptera/*physiology
Female
Flight
Gryllidae/*growth & development/*parasitology
Hoy R R
Levin E C
Life Cycle Stages/*physiology
Male
NEOMED College of Medicine
Parasites/*physiology
Reflex
Rosen M J
Startle/*physiology
The Journal of experimental biology
Ultrasonics
Vocalization
Walking/physiology