Adaptive developmental delay in chagas disease vectors: an evolutionary ecology approach

The developmental time of vector insects is important to their population dynamics, evolutionary biology, epidemiology of the diseases they transmit, and to their responses to global climatic change. In various triatomine species vectors of Chagas disease (Triatominae, Reduviidae), a delay in the mo...

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Detalles Bibliográficos
Autores principales: Menu, Frédéric, Ginoux, Marine, Rajon, Etienne, Lazzari, Claudio R., Rabinovich, Jorge Eduardo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2010
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/29697
http://www.plosntds.org/article/info%3Adoi%2F10.1371%2Fjournal.pntd.0000691
Aporte de:SEDICI (UNLP) de Universidad Nacional de La Plata Ver origen
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spelling I19-R120-10915-296972020-07-31T20:06:09Z http://sedici.unlp.edu.ar/handle/10915/29697 http://www.plosntds.org/article/info%3Adoi%2F10.1371%2Fjournal.pntd.0000691 issn:1935-2727 Adaptive developmental delay in chagas disease vectors: an evolutionary ecology approach Menu, Frédéric Ginoux, Marine Rajon, Etienne Lazzari, Claudio R. Rabinovich, Jorge Eduardo 2010 2013-09-26T16:03:32Z en Ciencias Naturales Ninfa Insectos Vectores Enfermedad de Chagas Triatominae The developmental time of vector insects is important to their population dynamics, evolutionary biology, epidemiology of the diseases they transmit, and to their responses to global climatic change. In various triatomine species vectors of Chagas disease (Triatominae, Reduviidae), a delay in the molt of a small proportion of individuals has been observed, and from an evolutionary ecology approach, we propose the hypothesis that the developmental delay is an adaptation to environmental stochasticity through a spreading of risk (bet-hedging) diapause strategy. We confirmed, by means of a survey among specialists, the existence of the developmental delay in triatomines. Statistical descriptions of the developmental time of 11 species of triatomines showed some degree of bi-modality in nine of them. We predicted by means of an optimization model which genotype, coding for a given frequency of developmental diapause, is expected to evolve. We identified a series of parameters that can be measured in the field and in the laboratory to test the hypothesis of an optimal diapause frequency. We also discuss the importance of these findings for triatomines in terms of global climatic change and epidemiological consequences such as their resistance to insecticides. Facultad de Ciencias Naturales y Museo Articulo Articulo http://creativecommons.org/licenses/by/2.5/ar/ Creative Commons Attribution 2.5 Argentina (CC BY 2.5) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Ninfa
Insectos Vectores
Enfermedad de Chagas
Triatominae
spellingShingle Ciencias Naturales
Ninfa
Insectos Vectores
Enfermedad de Chagas
Triatominae
Menu, Frédéric
Ginoux, Marine
Rajon, Etienne
Lazzari, Claudio R.
Rabinovich, Jorge Eduardo
Adaptive developmental delay in chagas disease vectors: an evolutionary ecology approach
topic_facet Ciencias Naturales
Ninfa
Insectos Vectores
Enfermedad de Chagas
Triatominae
description The developmental time of vector insects is important to their population dynamics, evolutionary biology, epidemiology of the diseases they transmit, and to their responses to global climatic change. In various triatomine species vectors of Chagas disease (Triatominae, Reduviidae), a delay in the molt of a small proportion of individuals has been observed, and from an evolutionary ecology approach, we propose the hypothesis that the developmental delay is an adaptation to environmental stochasticity through a spreading of risk (bet-hedging) diapause strategy. We confirmed, by means of a survey among specialists, the existence of the developmental delay in triatomines. Statistical descriptions of the developmental time of 11 species of triatomines showed some degree of bi-modality in nine of them. We predicted by means of an optimization model which genotype, coding for a given frequency of developmental diapause, is expected to evolve. We identified a series of parameters that can be measured in the field and in the laboratory to test the hypothesis of an optimal diapause frequency. We also discuss the importance of these findings for triatomines in terms of global climatic change and epidemiological consequences such as their resistance to insecticides.
format Articulo
Articulo
author Menu, Frédéric
Ginoux, Marine
Rajon, Etienne
Lazzari, Claudio R.
Rabinovich, Jorge Eduardo
author_facet Menu, Frédéric
Ginoux, Marine
Rajon, Etienne
Lazzari, Claudio R.
Rabinovich, Jorge Eduardo
author_sort Menu, Frédéric
title Adaptive developmental delay in chagas disease vectors: an evolutionary ecology approach
title_short Adaptive developmental delay in chagas disease vectors: an evolutionary ecology approach
title_full Adaptive developmental delay in chagas disease vectors: an evolutionary ecology approach
title_fullStr Adaptive developmental delay in chagas disease vectors: an evolutionary ecology approach
title_full_unstemmed Adaptive developmental delay in chagas disease vectors: an evolutionary ecology approach
title_sort adaptive developmental delay in chagas disease vectors: an evolutionary ecology approach
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/29697
http://www.plosntds.org/article/info%3Adoi%2F10.1371%2Fjournal.pntd.0000691
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