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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Detalles Bibliográficos
Autores principales: Lazzari, C.R., Núñez, J.
Formato: JOUR
Materias:
food seeking
thermal orientation
Triatominae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00221910_v35_n6_p525_Lazzari
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00221910_v35_n6_p525_Lazzari2023-10-03T14:28:09Z The response to radiant heat and the estimation of the temperature of distant sources in Triatoma infestans Lazzari, C.R. Núñez, J. food seeking thermal orientation Triatominae 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00221910_v35_n6_p525_Lazzari
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic food seeking
thermal orientation
Triatominae
spellingShingle food seeking
thermal orientation
Triatominae
Lazzari, C.R.
Núñez, J.
The response to radiant heat and the estimation of the temperature of distant sources in Triatoma infestans
topic_facet food seeking
thermal orientation
Triatominae
description 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.
format JOUR
author Lazzari, C.R.
Núñez, J.
author_facet Lazzari, C.R.
Núñez, J.
author_sort Lazzari, C.R.
title The response to radiant heat and the estimation of the temperature of distant sources in Triatoma infestans
title_short The response to radiant heat and the estimation of the temperature of distant sources in Triatoma infestans
title_full The response to radiant heat and the estimation of the temperature of distant sources in Triatoma infestans
title_fullStr The response to radiant heat and the estimation of the temperature of distant sources in Triatoma infestans
title_full_unstemmed The response to radiant heat and the estimation of the temperature of distant sources in Triatoma infestans
title_sort response to radiant heat and the estimation of the temperature of distant sources in triatoma infestans
url http://hdl.handle.net/20.500.12110/paper_00221910_v35_n6_p525_Lazzari
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