Diversity of Auchenorrhyncha (Hemiptera: Cicadellidae: Delphacidae) associated with Vicia villosa in southern Buenos Aires province, Argentina
Among the Hemiptera, the Auchenorrhyncha are well known owing to their phytosanitary relevance since the group includes pathogen vector species able to damage commercial crops. Vicia villosa Roth (Fabaceae) is a fodder plant species, mainly distributed in central Argentina. Previous contributions have shown that V. villosa is colonized by diverse species of Auchenorrhyncha, either naturalized or native to valley of Colorado River area, in southern Buenos Aires province. To date, the only information about the species of hoppers associated with Vicia has come from preliminary field observations. The dearth of demographic knowledge about these phytophagous insects associated with this crop in Argentina motivates the study. The aims of this work were: 1) to characterize the diversity of the species of Auchenorrhyncha associated with V. villosa and 2) to determine the seasonal fluctuation of the most abundant species in relation to local weather variables and crop phonological phases. The study was conducted in Vicia plots located at EEA INTA Hilario Ascasubi (S 39° 23′ 36″ -W 62° 37′ 59″, 15 m.a.s.l.) southern Buenos Aires province. The specimens were collected with a sweep net during 2 yr (2009 and 2011). Weather variables were recorded using a meteorological station located at the sampling site. To measure species richness and community diversity we calculated both Margalef (DMg) and the Simpson (D) indexes, and also, the Relative Importance Index (RII). The relationships between population densities of the leafhoppers, Paratanus exitiosus (Beamer) and Agalliana ensigera Oman (Cicadellidae), with weather variables were analyzed through simple and multiple linear regression. A total of 17 species were associated with V. villosa crops in Argentina, of which 15 belong to the Cicadellidae and 2 to the Delphacidae. Abundance and species richness were higher in 2009 than in 2011. In general, the results of the Margalef index showed that species richness was higher in 2009, while Simpson Index (D) indicated a higher dominance in 2011 than in 2009. The species, P. exitiosus and A. ensigera, stood out for their abundance, frequency and phytosanitary relevance during the sampling period. Both species presented population increases since Nov coinciding with different phenological phases of the crop and the maximum density of the canopy. Additionally, the population density of P. exitiosus showed strong dependence on the hydric balance and photoperiod, while A. ensigera was influenced by Degree-days10 and hydric balance. Vicia villlosa was a new host-plant record for 15 species. Buenos Aires province was cited as a new distribution record for 2 species.
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Format: | info:ar-repo/semantics/artículo biblioteca |
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2014-06
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Subjects: | Plagas de Plantas, Insecta, Auchenorrhyncha, Cultivos, Vicia Villosa, Plantas Forrajeras, Pests of Plants, Crops, Feed Crops, Buenos Aires, |
Online Access: | http://www.bioone.org/doi/abs/10.1653/024.097.0247 http://hdl.handle.net/20.500.12123/3875 https://doi.org/10.1653/024.097.0247 |
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Plagas de Plantas Insecta Auchenorrhyncha Cultivos Vicia Villosa Plantas Forrajeras Pests of Plants Crops Feed Crops Buenos Aires Plagas de Plantas Insecta Auchenorrhyncha Cultivos Vicia Villosa Plantas Forrajeras Pests of Plants Crops Feed Crops Buenos Aires |
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Plagas de Plantas Insecta Auchenorrhyncha Cultivos Vicia Villosa Plantas Forrajeras Pests of Plants Crops Feed Crops Buenos Aires Plagas de Plantas Insecta Auchenorrhyncha Cultivos Vicia Villosa Plantas Forrajeras Pests of Plants Crops Feed Crops Buenos Aires Paradell, Susana Liria Defea, Bárbara Soledad Dughetti, Arturo Carlos Zarate, Alberto Marino de Remes Lenicov, Ana Maria Diversity of Auchenorrhyncha (Hemiptera: Cicadellidae: Delphacidae) associated with Vicia villosa in southern Buenos Aires province, Argentina |
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Among the Hemiptera, the Auchenorrhyncha are well known owing to their phytosanitary relevance since the group includes pathogen vector species able to damage commercial crops. Vicia villosa Roth (Fabaceae) is a fodder plant species, mainly distributed in central Argentina. Previous contributions have shown that V. villosa is colonized by diverse species of Auchenorrhyncha, either naturalized or native to valley of Colorado River area, in southern Buenos Aires province. To date, the only information about the species of hoppers associated with Vicia has come from preliminary field observations. The dearth of demographic knowledge about these phytophagous insects associated with this crop in Argentina motivates the study. The aims of this work were: 1) to characterize the diversity of the species of Auchenorrhyncha associated with V. villosa and 2) to determine the seasonal fluctuation of the most abundant species in relation to local weather variables and crop phonological phases. The study was conducted in Vicia plots located at EEA INTA Hilario Ascasubi (S 39° 23′ 36″ -W 62° 37′ 59″, 15 m.a.s.l.) southern Buenos Aires province. The specimens were collected with a sweep net during 2 yr (2009 and 2011). Weather variables were recorded using a meteorological station located at the sampling site. To measure species richness and community diversity we calculated both Margalef (DMg) and the Simpson (D) indexes, and also, the Relative Importance Index (RII). The relationships between population densities of the leafhoppers, Paratanus exitiosus (Beamer) and Agalliana ensigera Oman (Cicadellidae), with weather variables were analyzed through simple and multiple linear regression. A total of 17 species were associated with V. villosa crops in Argentina, of which 15 belong to the Cicadellidae and 2 to the Delphacidae. Abundance and species richness were higher in 2009 than in 2011. In general, the results of the Margalef index showed that species richness was higher in 2009, while Simpson Index (D) indicated a higher dominance in 2011 than in 2009. The species, P. exitiosus and A. ensigera, stood out for their abundance, frequency and phytosanitary relevance during the sampling period. Both species presented population increases since Nov coinciding with different phenological phases of the crop and the maximum density of the canopy. Additionally, the population density of P. exitiosus showed strong dependence on the hydric balance and photoperiod, while A. ensigera was influenced by Degree-days10 and hydric balance. Vicia villlosa was a new host-plant record for 15 species. Buenos Aires province was cited as a new distribution record for 2 species. |
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Plagas de Plantas Insecta Auchenorrhyncha Cultivos Vicia Villosa Plantas Forrajeras Pests of Plants Crops Feed Crops Buenos Aires |
author |
Paradell, Susana Liria Defea, Bárbara Soledad Dughetti, Arturo Carlos Zarate, Alberto Marino de Remes Lenicov, Ana Maria |
author_facet |
Paradell, Susana Liria Defea, Bárbara Soledad Dughetti, Arturo Carlos Zarate, Alberto Marino de Remes Lenicov, Ana Maria |
author_sort |
Paradell, Susana Liria |
title |
Diversity of Auchenorrhyncha (Hemiptera: Cicadellidae: Delphacidae) associated with Vicia villosa in southern Buenos Aires province, Argentina |
title_short |
Diversity of Auchenorrhyncha (Hemiptera: Cicadellidae: Delphacidae) associated with Vicia villosa in southern Buenos Aires province, Argentina |
title_full |
Diversity of Auchenorrhyncha (Hemiptera: Cicadellidae: Delphacidae) associated with Vicia villosa in southern Buenos Aires province, Argentina |
title_fullStr |
Diversity of Auchenorrhyncha (Hemiptera: Cicadellidae: Delphacidae) associated with Vicia villosa in southern Buenos Aires province, Argentina |
title_full_unstemmed |
Diversity of Auchenorrhyncha (Hemiptera: Cicadellidae: Delphacidae) associated with Vicia villosa in southern Buenos Aires province, Argentina |
title_sort |
diversity of auchenorrhyncha (hemiptera: cicadellidae: delphacidae) associated with vicia villosa in southern buenos aires province, argentina |
publishDate |
2014-06 |
url |
http://www.bioone.org/doi/abs/10.1653/024.097.0247 http://hdl.handle.net/20.500.12123/3875 https://doi.org/10.1653/024.097.0247 |
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oai:localhost:20.500.12123-38752018-11-13T12:40:57Z Diversity of Auchenorrhyncha (Hemiptera: Cicadellidae: Delphacidae) associated with Vicia villosa in southern Buenos Aires province, Argentina Paradell, Susana Liria Defea, Bárbara Soledad Dughetti, Arturo Carlos Zarate, Alberto Marino de Remes Lenicov, Ana Maria Plagas de Plantas Insecta Auchenorrhyncha Cultivos Vicia Villosa Plantas Forrajeras Pests of Plants Crops Feed Crops Buenos Aires Among the Hemiptera, the Auchenorrhyncha are well known owing to their phytosanitary relevance since the group includes pathogen vector species able to damage commercial crops. Vicia villosa Roth (Fabaceae) is a fodder plant species, mainly distributed in central Argentina. Previous contributions have shown that V. villosa is colonized by diverse species of Auchenorrhyncha, either naturalized or native to valley of Colorado River area, in southern Buenos Aires province. To date, the only information about the species of hoppers associated with Vicia has come from preliminary field observations. The dearth of demographic knowledge about these phytophagous insects associated with this crop in Argentina motivates the study. The aims of this work were: 1) to characterize the diversity of the species of Auchenorrhyncha associated with V. villosa and 2) to determine the seasonal fluctuation of the most abundant species in relation to local weather variables and crop phonological phases. The study was conducted in Vicia plots located at EEA INTA Hilario Ascasubi (S 39° 23′ 36″ -W 62° 37′ 59″, 15 m.a.s.l.) southern Buenos Aires province. The specimens were collected with a sweep net during 2 yr (2009 and 2011). Weather variables were recorded using a meteorological station located at the sampling site. To measure species richness and community diversity we calculated both Margalef (DMg) and the Simpson (D) indexes, and also, the Relative Importance Index (RII). The relationships between population densities of the leafhoppers, Paratanus exitiosus (Beamer) and Agalliana ensigera Oman (Cicadellidae), with weather variables were analyzed through simple and multiple linear regression. A total of 17 species were associated with V. villosa crops in Argentina, of which 15 belong to the Cicadellidae and 2 to the Delphacidae. Abundance and species richness were higher in 2009 than in 2011. In general, the results of the Margalef index showed that species richness was higher in 2009, while Simpson Index (D) indicated a higher dominance in 2011 than in 2009. The species, P. exitiosus and A. ensigera, stood out for their abundance, frequency and phytosanitary relevance during the sampling period. Both species presented population increases since Nov coinciding with different phenological phases of the crop and the maximum density of the canopy. Additionally, the population density of P. exitiosus showed strong dependence on the hydric balance and photoperiod, while A. ensigera was influenced by Degree-days10 and hydric balance. Vicia villlosa was a new host-plant record for 15 species. Buenos Aires province was cited as a new distribution record for 2 species. Los hemipteros auquenorrincos son insectos de reconocida importancia fitosanitaria dado que reúnen especies vectoras de patógenos que ocasionan daños a cultivos de interés comercial. Vicia villosa Roth es una especie forrajera, distribuida fundamentalmente en la región central de Argentina. Observaciones preliminares evidenciaron que V. villosa es colonizada por una diversidad de auquenorrincos, establecidos o nativos, en el área de riego del valle del Río Colorado en el sur de la provincia de Buenos Aires. La falta de estudios poblacionales referidos a estos fitófagos asociados a dicho cultivo motivaron el planteo de los siguientes objetivos: 1) conocer la diversidad de las especies de auquenorrincos presentes a lo largo del ciclo de V. villosa y 2) estudiar la influencia de diversas variables climáticas locales sobre las poblaciones de las especies más abundantes y asociar la presencia de éstas a las fases fenológicas del cultivo. Los muestreos fueron realizados en lotes de vicia ubicados en la Estación Experimental Agropecuaria (EEA) INTA Hilario Ascasubi (62° 37′ 59″ LO, 39° 23′ 36″ LS 15 msnm), al sur de la provincia de Buenos Aires. Los especímenes fueron colectados con red entomológica de arrastre durante dos años (2009 y 2011). Las variables climáticas se registraron con una estación meteorológica instalada en el sitio de estudio. Para el cálculo de la riqueza específica y la diversidad se utilizaron los índices de Mar galef (DMg) y Simpson (D). También se calculó el Indice de Importancia Relativa (IIR). La relación entre la densidad poblacional de los cicadélidos, Paratanus exitiosus (Beamer) y Agalliana ensigera Oman con las variables climáticas fue analizada mediante regresión lineal simple y múltiple. La abundancia y la riqueza específica fueron mayores en 2009. En general, los valores de Mar galef (DMg) denotaron una mayor riqueza específica en 2009, mientras que el Indice de Simpson (D) mostró una mayor dominancia en el año 2011. En ambos años, las especies P. exitiosus y A. ensigera sobresalieron por su abundancia, frecuencia e importancia fitosanitaria. Las dos especies presentaron picos poblacionales desde noviembre en diferentes fases fenológicas del cultivo y cuando la canopea era ya muy densa. Sobre la base de los resultados obtenidos, la densidad de la población de P. exitiosus en el cultivo de vicia mostró una fuerte dependencia con el balance hídrico y el fotoperiodo; mientras que A. ensigera estuvo influenciada por los grados día 10 y el balance hídrico. Vicia villlosa se registra como nuevo hospedante para 15 especies, de las cuales dos se citan por primera vez para la provincia de Buenos Aires. EEA Hilario Ascasubi Fil: Paradell, Susana Liria. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Entomología; Argentina Fil: Defea, Bárbara Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Entomología; Argentina Fil: Dughetti, Arturo Carlos. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina Fil: Zarate, Alberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina Fil: Marino de Remes Lenicov, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Entomología; Argentina 2018-11-13T12:38:36Z 2018-11-13T12:38:36Z 2014-06 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://www.bioone.org/doi/abs/10.1653/024.097.0247 http://hdl.handle.net/20.500.12123/3875 0015-4040 1938-5102 https://doi.org/10.1653/024.097.0247 eng info:eu-repo/semantics/openAccess application/pdf Florida Entomologist 97 (2) : 674-684. (2014) |