Journal article
Influence of Heat and Vibration on the Movement of the Northern Fowl Mite (Acari: Macronyssidae)
Journal of medical entomology, Vol.41(5), pp.865-872
09/01/2004
Handle:
https://hdl.handle.net/2376/105016
Abstract
Heat and vibration are common host-generated cues that ectoparasites use to orient to hosts. Three experiments evaluated effects of heat and vibration on the movement of northern fowl mite, Ornithonyssus sylviarum (Canestrini & Fanzago). Individual arrested mites in an isolation chamber always initiated movement (walking) after substrate vibration (7.8-min walking duration), but only initiated movement 50% of the time (2.8-min walking duration) upon exposure to a 3 degree C heat fluctuation. Heat fluctuation in combination with vibration extended the period of activity by approximately 50% (11.6-min walking duration) compared with activity initiated by vibration alone. Mites with longer time off-host moved for shorter durations. In a choice test, individual mites consistently moved closer to a 35 degree C heat source 1 or 6 mm away, but not to a heat source 11 mm away. In a circular arena, mites were able to orient accurately to a 35 degree C heat source and reached the arena edge almost 4 times faster (11.2 s) than mites without a heat source (41.2 s). These results suggest that northern fowl mite is capable of directed thermo-orientation, as well as modulation of activity depending on the type of sensory information perceived. The adaptive significance of this orientation for a 'permanent' ectoparasite is discussed.
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Details
- Title
- Influence of Heat and Vibration on the Movement of the Northern Fowl Mite (Acari: Macronyssidae)
- Creators
- J P OwenB A Mullens
- Publication Details
- Journal of medical entomology, Vol.41(5), pp.865-872
- Academic Unit
- Entomology, Department of
- Identifiers
- 99900546835501842
- Language
- English
- Resource Type
- Journal article