Behavioral Responses of Periplaneta Americana L. Cockroaches to Short- and Long-Wave Light in a Wind Tunnel
摘要
The behavioral responses of the American cockroach Periplaneta americana to radiation emitted by ultraviolet and green LEDs were studied in a wind tunnel. Movement of insects toward the light source was observed in response to both stimuli, though the latent period of the response to green light was significantly shorter. Cockroaches initially moving towards the ultraviolet light source often returned to the less illuminated start point, whereas this behavior was not characteristic in green light conditions. Cockroaches often froze on exposure to ultraviolet light, demonstrating a masking reaction characteristic of the inactive, daytime phase of the circadian cycle.