Culicidae (Diptera) en un área rural del Chaco seco, Argentina
; Almiron, Walter Ricardo
; Zalazar, Laura ; Stein, Marina 
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Fecha
09/2013
Editorial
Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura
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Facena
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ISSN
0325-4216
eISSN
1851-507X
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Con el objetivo de estudiar algunos aspectos ecológicos de mosquitos en la región fitogeográfica del Chaco Seco, se realizó un estudio entre febrero y diciembre de 2007 en Misión Nueva Pompeya, Provincia del Chaco. Se seleccionaron tres parajes: "Fortín Arenales", "Los Pozos" y "Nueva Población". En cada paraje se seleccionaron tres estaciones de captura: extradomicilio (correspondiente a un bosque distante entre 90 y 110 m del domicilio), peridomicilio (representado por el corral distante hasta 10 m del domicilio) e intradomicilio (representado por las viviendas de los pobladores). Se determinaron 21 especies de mosquitos, correspondientes a 8 géneros. Se estimó el Índice de Abundancia de Especies (IAE) y la diversidad específica de cada uno de los parajes y de las estaciones de captura. Se realizó además un análisis de "clusters" para comparar los tres parajes y las tres estaciones de captura en cuanto a abundancia y diversidad de especies halladas. Las especies más abundantes fueron Mansonia titillans (Walker), Uranotaenia apicalis (Theobald) y Anopheles triannulatus (Neiva y Pinto). En cuanto a la estacionalidad, las capturas mensuales revelaron una estación con poca o casi nula presencia de mosquitos (estación seca) y un período con mayor abundancia, riqueza y diversidad de especies (estación lluviosa).
To study sorne ecological aspects of mosquitoes in the Dry Chaco phytogeographic region, a study was conducted between February and December 2007 in Misión Nueva Pompeya, Province of Chaco. Three sampled sites: "Fortin Arenales", "Los Pozos" and "Nueva Población" were selected. In each place one CDC-light trap was located in three different sampling stations: extradomiciliary (corresponding to a distant forest between 90 and 110 meters of the home), peridomiciliary (represented by the corral up to 10 meters distant from home) and intradomiciliary (represented by residents' homes). Twenty one mosquito species corresponding to 8 genera were determined. The lndex of Species Abundance (ISA) and Species Diversity of each sites and sampling stations were estimated. A cluster analysis to group sites and captme stations in terms of abundance and diversity of species was performed. Mansonia titillans (Walker) was the most abundant and common species in the study area, followed by Uranotaenia apicalis (Theobald) and Anopheles triannulatus (Neiva and Pinto). Regarding seasonality, monthly captures revealed a winter station with little or no presence of mosquitoes and a rainy season (summer- autumn station) with higher abundance, species richness and diversity.
To study sorne ecological aspects of mosquitoes in the Dry Chaco phytogeographic region, a study was conducted between February and December 2007 in Misión Nueva Pompeya, Province of Chaco. Three sampled sites: "Fortin Arenales", "Los Pozos" and "Nueva Población" were selected. In each place one CDC-light trap was located in three different sampling stations: extradomiciliary (corresponding to a distant forest between 90 and 110 meters of the home), peridomiciliary (represented by the corral up to 10 meters distant from home) and intradomiciliary (represented by residents' homes). Twenty one mosquito species corresponding to 8 genera were determined. The lndex of Species Abundance (ISA) and Species Diversity of each sites and sampling stations were estimated. A cluster analysis to group sites and captme stations in terms of abundance and diversity of species was performed. Mansonia titillans (Walker) was the most abundant and common species in the study area, followed by Uranotaenia apicalis (Theobald) and Anopheles triannulatus (Neiva and Pinto). Regarding seasonality, monthly captures revealed a winter station with little or no presence of mosquitoes and a rainy season (summer- autumn station) with higher abundance, species richness and diversity.
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