Sensory Effects of Relative Humidity on Thoracic Spiracles of Aedes Mosquitoes

Sensory Effects of Relative Humidity on Thoracic Spiracles of Aedes Mosquitoes

The behavior of the thoracic spiracles of A. triseriatus and A. aegypti was observed in high (90 plus or minus 5%) and low (5%) relative humidities. Following a 5-minute exposure to low RH, spiracular responses to 1/ 2% carbon dioxide were reduced in both species, but only A. triseriatus showed atte...

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Bibliographische Detailangaben
1. Verfasser: Krafsur, Elliot S
Format: Report
Sprache:eng
Schlagworte:
AEDES
Anatomy and Physiology
BEHAVIOR
CULICIDAE
EXPOSURE(PHYSIOLOGY)
HUMIDITY
RESPONSE(BIOLOGY)
SENSE ORGANS
SENSITIVITY
THORAX
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Zusammenfassung:The behavior of the thoracic spiracles of A. triseriatus and A. aegypti was observed in high (90 plus or minus 5%) and low (5%) relative humidities. Following a 5-minute exposure to low RH, spiracular responses to 1/ 2% carbon dioxide were reduced in both species, but only A. triseriatus showed attenuated spiracular behavior after a 2-minute exposure. Conservative spiracular opening was observed in both unfed and fed mosquitoes. It is postulated that the spiracular response to low RH is a sensory one.