Flight initiation of Triatoma infestans (Hemiptera: Reduviidae) under natural climatic conditions

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Flight dispersal of Triatoma infestans Klug is probably the most important mechanism for house reinfestation at a village scale after residual spraying with insecticides. The aim of the current study was to estimate the flight initiation probability of field-collected T. infestans and to assess how...

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Autores principales: Gurevitz, J.M., Ceballos, L.A., Kitron, U., Gürtler, R.E.
Formato: JOUR
Materias:
Chagas disease
Flight initiation
Reinfestation
Triatominae
Hemiptera
Reduviidae
Triatoma infestans
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00222585_v43_n2_p143_Gurevitz
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00222585_v43_n2_p143_Gurevitz
record_format dspace
spelling todo:paper_00222585_v43_n2_p143_Gurevitz2023-10-03T14:30:01Z Flight initiation of Triatoma infestans (Hemiptera: Reduviidae) under natural climatic conditions Gurevitz, J.M. Ceballos, L.A. Kitron, U. Gürtler, R.E. Chagas disease Flight initiation Reinfestation Triatominae Hemiptera Reduviidae Triatoma infestans Triatominae Flight dispersal of Triatoma infestans Klug is probably the most important mechanism for house reinfestation at a village scale after residual spraying with insecticides. The aim of the current study was to estimate the flight initiation probability of field-collected T. infestans and to assess how this probability was affected by sex, adult age, partial bloodmeal, and the presence of a host inaccessible for feeding. Four experimental series, each consisting of three to six consecutive nights and repeated measurements of flight initiation on each individually marked bug, were carried out in experimental huts inside closed cages under natural climatic conditions. We demonstrate that flight initiation probability of T. infestans is much higher than previously reported, responds to temperature in a sigmoid manner, and is higher in females than males, and that the frequency distribution of the number of flights per individual is highly aggregated in female and male bugs. The age of adults had strong effects on flight initiation, whereas the presence of an inaccessible host and a partial bloodmeal exerted no significant effects in models controlling for the effects of bug weight-to-length ratio. The high flight potential found is consistent with the rapid changes in reinfestation patterns observed in the field. The present estimates of flight probabilities and the identification of factors modifying them provide essential knowledge for modeling reinfestation patterns and for improving control strategies of T. infestans. © 2006 Entomological Society of America. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00222585_v43_n2_p143_Gurevitz
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Chagas disease
Flight initiation
Reinfestation
Triatominae
Hemiptera
Reduviidae
Triatoma infestans
Triatominae
spellingShingle Chagas disease
Flight initiation
Reinfestation
Triatominae
Hemiptera
Reduviidae
Triatoma infestans
Triatominae
Gurevitz, J.M.
Ceballos, L.A.
Kitron, U.
Gürtler, R.E.
Flight initiation of Triatoma infestans (Hemiptera: Reduviidae) under natural climatic conditions
topic_facet Chagas disease
Flight initiation
Reinfestation
Triatominae
Hemiptera
Reduviidae
Triatoma infestans
Triatominae
description Flight dispersal of Triatoma infestans Klug is probably the most important mechanism for house reinfestation at a village scale after residual spraying with insecticides. The aim of the current study was to estimate the flight initiation probability of field-collected T. infestans and to assess how this probability was affected by sex, adult age, partial bloodmeal, and the presence of a host inaccessible for feeding. Four experimental series, each consisting of three to six consecutive nights and repeated measurements of flight initiation on each individually marked bug, were carried out in experimental huts inside closed cages under natural climatic conditions. We demonstrate that flight initiation probability of T. infestans is much higher than previously reported, responds to temperature in a sigmoid manner, and is higher in females than males, and that the frequency distribution of the number of flights per individual is highly aggregated in female and male bugs. The age of adults had strong effects on flight initiation, whereas the presence of an inaccessible host and a partial bloodmeal exerted no significant effects in models controlling for the effects of bug weight-to-length ratio. The high flight potential found is consistent with the rapid changes in reinfestation patterns observed in the field. The present estimates of flight probabilities and the identification of factors modifying them provide essential knowledge for modeling reinfestation patterns and for improving control strategies of T. infestans. © 2006 Entomological Society of America.
format JOUR
author Gurevitz, J.M.
Ceballos, L.A.
Kitron, U.
Gürtler, R.E.
author_facet Gurevitz, J.M.
Ceballos, L.A.
Kitron, U.
Gürtler, R.E.
author_sort Gurevitz, J.M.
title Flight initiation of Triatoma infestans (Hemiptera: Reduviidae) under natural climatic conditions
title_short Flight initiation of Triatoma infestans (Hemiptera: Reduviidae) under natural climatic conditions
title_full Flight initiation of Triatoma infestans (Hemiptera: Reduviidae) under natural climatic conditions
title_fullStr Flight initiation of Triatoma infestans (Hemiptera: Reduviidae) under natural climatic conditions
title_full_unstemmed Flight initiation of Triatoma infestans (Hemiptera: Reduviidae) under natural climatic conditions
title_sort flight initiation of triatoma infestans (hemiptera: reduviidae) under natural climatic conditions
url http://hdl.handle.net/20.500.12110/paper_00222585_v43_n2_p143_Gurevitz
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AT ceballosla flightinitiationoftriatomainfestanshemipterareduviidaeundernaturalclimaticconditions
AT kitronu flightinitiationoftriatomainfestanshemipterareduviidaeundernaturalclimaticconditions
AT gurtlerre flightinitiationoftriatomainfestanshemipterareduviidaeundernaturalclimaticconditions
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