Low-cost wind tunnel for micro-arthropods
نویسندگان
چکیده
The aerial transport of tiny arthropods including wing-less species has been well documented. The initiation of aerial dispersal in most instances is not a passive phenomenon, but involves identifiable behaviors in response to specific stimuli. Here we describe a construction of wind tunnel suitable for close-up observation of micro-arthropods behavior under various conditions. The tunnel was made of glass with inner dimensions 6x6x110 centimeters. Both the inlet and outlet compartments were equipped with an electric fan, series of plastic diffusers and a metal mesh to minimize wind turbulence inside a 40 centimeters-long observation chamber in the middle of the tunnel. Wind speed is controlled by changing voltage on a variable AC/DC transformer and actual speed is monitored using a precise TESTO hot-ball anemometer. The object is observed using dissection microscope and The Observer software.
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