The response to radiant heat and the estimation of the temperature of distant sources in Triatoma infestans
The response of blood-sucking bugs (Triatoma infestans) to thermal stimulation, in the absence of warm-air gradients or convection currents, was analysed, using windows with different infrared transmittance. When some infrared radiation could reach the insects, they responded as without window. When...
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| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
| Publicado: |
1989
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
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| Sumario: | The response of blood-sucking bugs (Triatoma infestans) to thermal stimulation, in the absence of warm-air gradients or convection currents, was analysed, using windows with different infrared transmittance. When some infrared radiation could reach the insects, they responded as without window. When infrared-opaque windows were used, no response was evoked. Discrimination of the source temperatures was tested using two sources at different temperatures and open-loop conditions. The bugs orientated toward that source that had the temperature of a food source and preferred it to a source at 50°C, in spite of both sources being 10 cm distant. From behavioural evidence we conclude that T. infestans perceives the radiant heat of a warm source and can estimate its temperature at a distance, when seeking for food. © 1989. |
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| ISSN: | 00221910 |
| DOI: | 10.1016/0022-1910(89)90060-7 |