Life cycle and reproductive patterns of triatoma rubrovaria (blanchard, 1843) (hemiptera: reduviidae) under constant and fluctuating conditions of temperature and humidity

The aim of this study was to evaluate the temperature and relative humidity influence in the life cycle, mortality and fecundity patterns of Triatoma rubrovaria. Four cohorts with 60 recently laid eggs each were conformed. The cohorts were divided into two groups. In the controlled conditions group...

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Autores principales: Damborsky, Miryam Pieri, Bar, María Esther, Gorla, David
Formato: Artículo
Lenguaje:Inglés
Publicado: Sociedade Brasileira de Medicina Tropical 2022
Materias:
Life cycle
Reproductive characteristics
Temperature
Humidity
Ciclo biológico
Padrões reprodutivos
Temperatura
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/48887
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RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-48887
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spelling I48-R184-123456789-488872025-03-06T10:56:36Z Life cycle and reproductive patterns of triatoma rubrovaria (blanchard, 1843) (hemiptera: reduviidae) under constant and fluctuating conditions of temperature and humidity Ciclo de vida e características reprodutivas de triatoma rubrovaria (blanchard, 1843) (hemiptera: reduviidae) em condições constantes e variáveis de temperatura e umidade Damborsky, Miryam Pieri Bar, María Esther Gorla, David Life cycle Reproductive characteristics Temperature Humidity Ciclo biológico Padrões reprodutivos Temperatura The aim of this study was to evaluate the temperature and relative humidity influence in the life cycle, mortality and fecundity patterns of Triatoma rubrovaria. Four cohorts with 60 recently laid eggs each were conformed. The cohorts were divided into two groups. In the controlled conditions group insects were maintained in a dark climatic chamber under constant temperature and humidity, whereas triatomines of the ambiental temperature group were maintained at room temperature. Average incubation time was 15.6 days in the controlled conditions group and 19.1 days in the ambiental temperature. In group controlled conditions the time from egg to adult development lasted 10 months while group ambiental temperature took four months longer. Egg eclosion rate was 99.1% and 98.3% in controlled conditions and ambiental temperature, respectively. Total nymphal mortality in controlled conditions was 52.6% whereas in ambiental temperature was 51.8%. Mean number of eggs/ female was 817.6 controlled conditions and 837.1 ambiental temperature. Fluctuating temperature and humidity promoted changes in the life cycle duration and in the reproductive performance of this species, although not in the species mortality. Presente trabalho teve como objetivo avaliar a influência da temperatura e umidade relativa sobre o ciclo biológico, mortalidade e fecundidade de Triatoma rubrovaria. Formaram-se quatro coortes, cada uma de 60 ovos recentemente colocados. As coortes foram divididas em dois grupos: O grupo condições controlada foi mantido em estufa com temperatura e umidade constantes, e o grupo temperatura ambiental foi mantido em condições variáveis de temperatura e umidade. O tempo de incubação dos ovos foi de 15.6 condições controlada e de 19.1 dias temperatura ambiental. O período de desenvolvimento de ovo a adulto foi de dez meses em condições controlada e 4 meses mais extenso em temperatura ambiental. A taxa de eclosão foi 99.1% em condições controlada e 98.3% em temperatura ambiental. A fecundidade foi 817.6 condições controlada e 837.1 temperatura ambiental. O percentual de mortalidade ninfal foi 52.6% no grupo condições controlada e 51.8% no grupo temperatura ambiental. As variações de temperatura e umidade relativa exercem influência no ciclo biológico e em alguns padrões reprodutivos desta espécie, mas não em sua mortalidade. 2022-07-11T14:31:12Z 2022-07-11T14:31:12Z 2005 Artículo Damborsky, Miryam Pieri, Bar, María Esther y Gorla, David, 2005. Life cycle and reproductive patterns of triatoma rubrovaria (blanchard, 1843) (hemiptera: reduviidae) under constant and fluctuating conditions of temperature and humidity. Revista da Sociedade Brasileira de Medicina Tropical. Minas Gerais: Sociedade Brasileira de Medicina Tropical, vol. 38, no. 5, p. 433-437. ISSN 1678-9849. 1678-9849 http://repositorio.unne.edu.ar/handle/123456789/48887 eng openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf Sociedade Brasileira de Medicina Tropical Revista da Sociedade Brasileira de Medicina Tropical, 2005, vol. 38, no. 5, p. 433-437.
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic Life cycle
Reproductive characteristics
Temperature
Humidity
Ciclo biológico
Padrões reprodutivos
Temperatura
spellingShingle Life cycle
Reproductive characteristics
Temperature
Humidity
Ciclo biológico
Padrões reprodutivos
Temperatura
Damborsky, Miryam Pieri
Bar, María Esther
Gorla, David
Life cycle and reproductive patterns of triatoma rubrovaria (blanchard, 1843) (hemiptera: reduviidae) under constant and fluctuating conditions of temperature and humidity
topic_facet Life cycle
Reproductive characteristics
Temperature
Humidity
Ciclo biológico
Padrões reprodutivos
Temperatura
description The aim of this study was to evaluate the temperature and relative humidity influence in the life cycle, mortality and fecundity patterns of Triatoma rubrovaria. Four cohorts with 60 recently laid eggs each were conformed. The cohorts were divided into two groups. In the controlled conditions group insects were maintained in a dark climatic chamber under constant temperature and humidity, whereas triatomines of the ambiental temperature group were maintained at room temperature. Average incubation time was 15.6 days in the controlled conditions group and 19.1 days in the ambiental temperature. In group controlled conditions the time from egg to adult development lasted 10 months while group ambiental temperature took four months longer. Egg eclosion rate was 99.1% and 98.3% in controlled conditions and ambiental temperature, respectively. Total nymphal mortality in controlled conditions was 52.6% whereas in ambiental temperature was 51.8%. Mean number of eggs/ female was 817.6 controlled conditions and 837.1 ambiental temperature. Fluctuating temperature and humidity promoted changes in the life cycle duration and in the reproductive performance of this species, although not in the species mortality.
format Artículo
author Damborsky, Miryam Pieri
Bar, María Esther
Gorla, David
author_facet Damborsky, Miryam Pieri
Bar, María Esther
Gorla, David
author_sort Damborsky, Miryam Pieri
title Life cycle and reproductive patterns of triatoma rubrovaria (blanchard, 1843) (hemiptera: reduviidae) under constant and fluctuating conditions of temperature and humidity
title_short Life cycle and reproductive patterns of triatoma rubrovaria (blanchard, 1843) (hemiptera: reduviidae) under constant and fluctuating conditions of temperature and humidity
title_full Life cycle and reproductive patterns of triatoma rubrovaria (blanchard, 1843) (hemiptera: reduviidae) under constant and fluctuating conditions of temperature and humidity
title_fullStr Life cycle and reproductive patterns of triatoma rubrovaria (blanchard, 1843) (hemiptera: reduviidae) under constant and fluctuating conditions of temperature and humidity
title_full_unstemmed Life cycle and reproductive patterns of triatoma rubrovaria (blanchard, 1843) (hemiptera: reduviidae) under constant and fluctuating conditions of temperature and humidity
title_sort life cycle and reproductive patterns of triatoma rubrovaria (blanchard, 1843) (hemiptera: reduviidae) under constant and fluctuating conditions of temperature and humidity
publisher Sociedade Brasileira de Medicina Tropical
publishDate 2022
url http://repositorio.unne.edu.ar/handle/123456789/48887
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