First study of host-plant preferences of Sinopla perpunctatus (Hemiptera: Acanthosomatidae), a stink bug from the Andean-Patagonic forest
Host plants of phytophagous insects are not equally attractive. The aim of this study was to evaluate the host-plant behavior of Sinopla perpunctatus Signoret (Hemiptera: Acanthosomatidae) and determine which parameters influence the insect’s motivation. Sinopla perpunctatus is a green stink bug pre...
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| Format: | Artículo |
| Language: | Inglés |
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Florida Entomological Society
2019
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| Online Access: | http://journals.fcla.edu/flaent/article/view/83185/80052 https://bioone.org/journals/Florida-Entomologist/volume-97/issue-2/024.097.0226/First-Study-of-Host-Plant-Preferences-of-iSinopla-perpunctatus-i/10.1653/024.097.0226.full http://hdl.handle.net/20.500.12123/4351 https://doi.org/10.1653/024.097.0226 |
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| author | Pietrantuono, Ana Laura Fernandez Arhex, Valeria Cristina Bruzzone, Octavio Augusto |
| author_browse | Bruzzone, Octavio Augusto Fernandez Arhex, Valeria Cristina Pietrantuono, Ana Laura |
| author_facet | Pietrantuono, Ana Laura Fernandez Arhex, Valeria Cristina Bruzzone, Octavio Augusto |
| author_sort | Pietrantuono, Ana Laura |
| collection | INTA Digital |
| description | Host plants of phytophagous insects are not equally attractive. The aim of this study was to evaluate the host-plant behavior of Sinopla perpunctatus Signoret (Hemiptera: Acanthosomatidae) and determine which parameters influence the insect’s motivation. Sinopla perpunctatus is a green stink bug present in the Andean-Patagonian forest associated with various host species of Nothofagus (Fagales: Nothafagaceae) southern beech trees. For the assays, we collected adults at Quilanlahue forest (Neuquen, Argentina), an area affected by the deposition of volcanic ash, whose effects we decided to evaluate. A sequence of paired comparisons was used to evaluate the host-plant preferences. Branches from N. antarctica, N. nervosa, N. obliqua and plastic leaves (control), with or without ash were the stimuli offered. In total we performed 18 combinations of paired tests to evaluate the different combinations of treatments. We considered the choices of each individual by day as the response variable. The data were analyzed by several models that explain the probability of an individual choosing a particular option depending on host plant preferences and the effect of different parameters of motivation (including the age, ash, home effect and combinations).Thus a total of eight models were proposed to explain the data, from which we selected the model with the lowest value of the deviance information criterion (DIC). The selected model established that preferences were determined by the motivation for change after the organism has already made a choice (i.e., home effect). The preferred host plants of S. perpunctatus were found to be N. antarctica and N. obliqua, while its preference for N. nervosa occupied a second place. Physical or chemical defenses of the leaves among species could explain this rank. However, volcanic ash was found to have no effect on motivation or host preference. Finally, we concluded that such studies of behavior and of parameters that may affect insect motivation should allow us to reach greater understandings of insect-plant interactions. |
| format | Artículo |
| id | INTA4351 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Florida Entomological Society |
| publisherStr | Florida Entomological Society |
| record_format | dspace |
| spelling | INTA43512019-01-29T15:20:24Z First study of host-plant preferences of Sinopla perpunctatus (Hemiptera: Acanthosomatidae), a stink bug from the Andean-Patagonic forest Pietrantuono, Ana Laura Fernandez Arhex, Valeria Cristina Bruzzone, Octavio Augusto Hemiptera Insecta Plantas Huéspedes Nothofagus Ceniza Host Plants Ashes Sinopla perpunctatus Insectos Fitófagos Región Patagónica Bosque Andino Patagónico Ceniza Volcánica Host plants of phytophagous insects are not equally attractive. The aim of this study was to evaluate the host-plant behavior of Sinopla perpunctatus Signoret (Hemiptera: Acanthosomatidae) and determine which parameters influence the insect’s motivation. Sinopla perpunctatus is a green stink bug present in the Andean-Patagonian forest associated with various host species of Nothofagus (Fagales: Nothafagaceae) southern beech trees. For the assays, we collected adults at Quilanlahue forest (Neuquen, Argentina), an area affected by the deposition of volcanic ash, whose effects we decided to evaluate. A sequence of paired comparisons was used to evaluate the host-plant preferences. Branches from N. antarctica, N. nervosa, N. obliqua and plastic leaves (control), with or without ash were the stimuli offered. In total we performed 18 combinations of paired tests to evaluate the different combinations of treatments. We considered the choices of each individual by day as the response variable. The data were analyzed by several models that explain the probability of an individual choosing a particular option depending on host plant preferences and the effect of different parameters of motivation (including the age, ash, home effect and combinations).Thus a total of eight models were proposed to explain the data, from which we selected the model with the lowest value of the deviance information criterion (DIC). The selected model established that preferences were determined by the motivation for change after the organism has already made a choice (i.e., home effect). The preferred host plants of S. perpunctatus were found to be N. antarctica and N. obliqua, while its preference for N. nervosa occupied a second place. Physical or chemical defenses of the leaves among species could explain this rank. However, volcanic ash was found to have no effect on motivation or host preference. Finally, we concluded that such studies of behavior and of parameters that may affect insect motivation should allow us to reach greater understandings of insect-plant interactions. Las plantas hospedadoras de los insectos fitofagos no les resultan igualmente atractivas. Poseen un gradiente de preferencias que esta principalmente determinado por la motivacion que posee el insecto durante el proceso de seleccion del hospedador. El objetivo de este estudio fue evaluar el comportamiento de Sinopla perpunctatus Signoret (Hemiptera: Acanthosomatidae) durante el proceso de eleccion de su planta hospedadora y determinar la influencia de la motivacion del insecto en este proceso. Sinopla perpunctatus es una chinche verde que se encuentra presente en el bosque Andino-Patagonico asociada a diferentes especies de Nothofagus (Fagales: Nothafagaceae) como plantas hospedadoras. Para los ensayos recolectamos individuos adultos en el bosque de Quilanlahue (Neuquen, Argentina). En junio del 2011 esta area resulto afectada por la deposicion de ceniza volcanica, por lo tanto tambien decidimos evaluar el efecto de la ceniza en la motivacion. Para evaluar las preferencias, realizamos una secuencia de pruebas de comparaciones pareadas. Como estimulo les ofrecimos ramas de N. antarctica, N. nervosa, N. obliqua y hojas de plastico (control) con o sin ceniza. En total realizamos 18 combinaciones de pruebas pareadas para evaluar las diferentes combinaciones de tratamientos. Consideramos como variable respuesta las elecciones realizadas por cada individuo en cada dia. Los datos fueron analizados mediante el desarrollo de varios modelos que explicaban la probabilidad de los individuos de elegir una opcion determinada de acuerdo a sus preferencias y al efecto de diferentes parametros (i.e. Efecto de la edad, ceniza, hogar y sus combinaciones) en la motivacion del insecto. En consecuencia, se confeccionaron ocho modelos para explicar los datos obtenidos, de los cuales seleccionamos aquel con el menor valor de DIC. El modelo elegido establece que las preferencias estan determinadas por la perdida de motivacion que posee el insecto a cambiar de planta hospedadora una vez que eligio. S. perpunctatus tiene una mayor preferencia por N. antárctica y N. obliqua, mientras que N. nervosa esta como segunda opcion. Consideramos que las diferencias entre las defensas fisicas y quimicas de las distintas especies de plantas hospedadoras podrian explicar este gradiente de preferencias. En cuanto a la ceniza volcanica, no ejerce efecto alguno sobre las preferencias o motivacion de estos insectos. Finalmente, consideramos que estudiar el comportamiento y los parametros que podrian afectar la motivacion de los insectos, nos permite alcanzar una mayor comprension de las interacciones entre los insectos y las plantas. EEA Bariloche Fil: Pietrantuono, Ana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Fernandez Arhex, Valeria Cristina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Bruzzone, Octavio Augusto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina 2019-01-29T15:18:53Z 2019-01-29T15:18:53Z 2014-06 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://journals.fcla.edu/flaent/article/view/83185/80052 https://bioone.org/journals/Florida-Entomologist/volume-97/issue-2/024.097.0226/First-Study-of-Host-Plant-Preferences-of-iSinopla-perpunctatus-i/10.1653/024.097.0226.full http://hdl.handle.net/20.500.12123/4351 0015-4040 1938-5102 https://doi.org/10.1653/024.097.0226 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Florida Entomological Society Florida Entomologist 97 (2) : 534-540 (2014) |
| spellingShingle | Hemiptera Insecta Plantas Huéspedes Nothofagus Ceniza Host Plants Ashes Sinopla perpunctatus Insectos Fitófagos Región Patagónica Bosque Andino Patagónico Ceniza Volcánica Pietrantuono, Ana Laura Fernandez Arhex, Valeria Cristina Bruzzone, Octavio Augusto First study of host-plant preferences of Sinopla perpunctatus (Hemiptera: Acanthosomatidae), a stink bug from the Andean-Patagonic forest |
| title | First study of host-plant preferences of Sinopla perpunctatus (Hemiptera: Acanthosomatidae), a stink bug from the Andean-Patagonic forest |
| title_full | First study of host-plant preferences of Sinopla perpunctatus (Hemiptera: Acanthosomatidae), a stink bug from the Andean-Patagonic forest |
| title_fullStr | First study of host-plant preferences of Sinopla perpunctatus (Hemiptera: Acanthosomatidae), a stink bug from the Andean-Patagonic forest |
| title_full_unstemmed | First study of host-plant preferences of Sinopla perpunctatus (Hemiptera: Acanthosomatidae), a stink bug from the Andean-Patagonic forest |
| title_short | First study of host-plant preferences of Sinopla perpunctatus (Hemiptera: Acanthosomatidae), a stink bug from the Andean-Patagonic forest |
| title_sort | first study of host plant preferences of sinopla perpunctatus hemiptera acanthosomatidae a stink bug from the andean patagonic forest |
| topic | Hemiptera Insecta Plantas Huéspedes Nothofagus Ceniza Host Plants Ashes Sinopla perpunctatus Insectos Fitófagos Región Patagónica Bosque Andino Patagónico Ceniza Volcánica |
| url | http://journals.fcla.edu/flaent/article/view/83185/80052 https://bioone.org/journals/Florida-Entomologist/volume-97/issue-2/024.097.0226/First-Study-of-Host-Plant-Preferences-of-iSinopla-perpunctatus-i/10.1653/024.097.0226.full http://hdl.handle.net/20.500.12123/4351 https://doi.org/10.1653/024.097.0226 |
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