Active dispersal of natural populations of Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina

An empirical model of flight initiation coupled with data from a longitudinal study predicted that the flight dispersal of Triatoma infestans from peridomestic sites was more likely to occur in late summer. To partially test this prediction, we operated 11-12 black light traps from 1945 to 2200 hour...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Vazquez-Prokopec, G.M., Ceballos, L.A., Kitron, U., Gürtler, R.E.
Formato:	JOUR
Materias:	Chagas' disease Flight Light trap Triatominae Vector ecology Animalia Hemiptera Reduviidae Triatoma Triatoma garciabesi Triatoma guasayana Triatoma infestans
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00222585_v41_n4_p614_VazquezProkopec
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00222585_v41_n4_p614_VazquezProkopec
record_format	dspace
spelling	todo:paper_00222585_v41_n4_p614_VazquezProkopec2023-10-03T14:29:59Z Active dispersal of natural populations of Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina Vazquez-Prokopec, G.M. Ceballos, L.A. Kitron, U. Gürtler, R.E. Chagas' disease Flight Light trap Triatominae Vector ecology Animalia Hemiptera Reduviidae Triatoma Triatoma garciabesi Triatoma garciabesi Triatoma guasayana Triatoma guasayana Triatoma infestans Triatoma infestans Triatominae An empirical model of flight initiation coupled with data from a longitudinal study predicted that the flight dispersal of Triatoma infestans from peridomestic sites was more likely to occur in late summer. To partially test this prediction, we operated 11-12 black light traps from 1945 to 2200 hours in March 2003 in two villages in northern Argentina. All peridomestic sites around the light traps were later inspected to assess the relative abundance and nutritional status of T. infestans at each site. Traps were located 19-94 m from the nearest infested site. A total of 2 female, 10 male, and 3 fifth-instar nymphs of T. infestans; 4 adult Triatoma garciabesi; and 1 Triatoma guasayana fifth-instar nymph were collected in 64 trap nights. Nearly two-thirds of the bugs arrived to the traps during the first hour after sunset, when ambient temperatures were 22-28°C; 80% of adults were unfed. The number of T. infestans that flew to the traps was significantly and negatively associated with wind speed, and the number of males positively associated with the abundance of adult T. infestans in peridomestic sites within 200 m around each light trap. This is the first successful application of light traps for collecting dispersing nymphal and adult T. infestans on a village-wide scale. We attribute this success to the placement of traps with consideration to spatial infestation patterns and seasonal variation in nutritional status of peridomestic triatomine populations. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00222585_v41_n4_p614_VazquezProkopec
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 Light trap Triatominae Vector ecology Animalia Hemiptera Reduviidae Triatoma Triatoma garciabesi Triatoma garciabesi Triatoma guasayana Triatoma guasayana Triatoma infestans Triatoma infestans Triatominae
spellingShingle	Chagas' disease Flight Light trap Triatominae Vector ecology Animalia Hemiptera Reduviidae Triatoma Triatoma garciabesi Triatoma garciabesi Triatoma guasayana Triatoma guasayana Triatoma infestans Triatoma infestans Triatominae Vazquez-Prokopec, G.M. Ceballos, L.A. Kitron, U. Gürtler, R.E. Active dispersal of natural populations of Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina
topic_facet	Chagas' disease Flight Light trap Triatominae Vector ecology Animalia Hemiptera Reduviidae Triatoma Triatoma garciabesi Triatoma garciabesi Triatoma guasayana Triatoma guasayana Triatoma infestans Triatoma infestans Triatominae
description	An empirical model of flight initiation coupled with data from a longitudinal study predicted that the flight dispersal of Triatoma infestans from peridomestic sites was more likely to occur in late summer. To partially test this prediction, we operated 11-12 black light traps from 1945 to 2200 hours in March 2003 in two villages in northern Argentina. All peridomestic sites around the light traps were later inspected to assess the relative abundance and nutritional status of T. infestans at each site. Traps were located 19-94 m from the nearest infested site. A total of 2 female, 10 male, and 3 fifth-instar nymphs of T. infestans; 4 adult Triatoma garciabesi; and 1 Triatoma guasayana fifth-instar nymph were collected in 64 trap nights. Nearly two-thirds of the bugs arrived to the traps during the first hour after sunset, when ambient temperatures were 22-28°C; 80% of adults were unfed. The number of T. infestans that flew to the traps was significantly and negatively associated with wind speed, and the number of males positively associated with the abundance of adult T. infestans in peridomestic sites within 200 m around each light trap. This is the first successful application of light traps for collecting dispersing nymphal and adult T. infestans on a village-wide scale. We attribute this success to the placement of traps with consideration to spatial infestation patterns and seasonal variation in nutritional status of peridomestic triatomine populations.
format	JOUR
author	Vazquez-Prokopec, G.M. Ceballos, L.A. Kitron, U. Gürtler, R.E.
author_facet	Vazquez-Prokopec, G.M. Ceballos, L.A. Kitron, U. Gürtler, R.E.
author_sort	Vazquez-Prokopec, G.M.
title	Active dispersal of natural populations of Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina
title_short	Active dispersal of natural populations of Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina
title_full	Active dispersal of natural populations of Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina
title_fullStr	Active dispersal of natural populations of Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina
title_full_unstemmed	Active dispersal of natural populations of Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina
title_sort	active dispersal of natural populations of triatoma infestans (hemiptera: reduviidae) in rural northwestern argentina
url	http://hdl.handle.net/20.500.12110/paper_00222585_v41_n4_p614_VazquezProkopec
work_keys_str_mv	AT vazquezprokopecgm activedispersalofnaturalpopulationsoftriatomainfestanshemipterareduviidaeinruralnorthwesternargentina AT ceballosla activedispersalofnaturalpopulationsoftriatomainfestanshemipterareduviidaeinruralnorthwesternargentina AT kitronu activedispersalofnaturalpopulationsoftriatomainfestanshemipterareduviidaeinruralnorthwesternargentina AT gurtlerre activedispersalofnaturalpopulationsoftriatomainfestanshemipterareduviidaeinruralnorthwesternargentina
_version_	1782023630358577152

Active dispersal of natural populations of Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina

Ejemplares similares