The role of leaf cellulose content in determining host plant preferences of three defoliating insects present in the Andean-Patagonian forest
Los insectos fitófagos eligen sus recursos alimenticios según sus propias necesidades además de las propiedades de las plantas huésped, como las defensas biomecánicas. Las preferencias alimentarias de los insectos folívoros nativos del bosque andino-patagónico (Argentina) rara vez han sido estudiada...
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| Format: | info:eu-repo/semantics/article |
| Language: | Inglés |
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2017
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| Online Access: | http://hdl.handle.net/20.500.12123/1331 http://onlinelibrary.wiley.com/doi/10.1111/aec.12460/abstract |
| _version_ | 1855034786598354944 |
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| author | Pietrantuono, Ana Laura Bruzzone, Octavio Augusto Fernandez Arhex, Valeria Cristina |
| author_browse | Bruzzone, Octavio Augusto Fernandez Arhex, Valeria Cristina Pietrantuono, Ana Laura |
| author_facet | Pietrantuono, Ana Laura Bruzzone, Octavio Augusto Fernandez Arhex, Valeria Cristina |
| author_sort | Pietrantuono, Ana Laura |
| collection | INTA Digital |
| description | Los insectos fitófagos eligen sus recursos alimenticios según sus propias necesidades además de las propiedades de las plantas huésped, como las defensas biomecánicas. Las preferencias alimentarias de los insectos folívoros nativos del bosque andino-patagónico (Argentina) rara vez han sido estudiadas. Estos ambientes presentan una gran diversidad y abundancia de insectos asociados con árboles de los géneros Nothofagus y Lophozonia (Nothofagaceae), que representan las principales especies arbóreas de los bosques del hemisferio sur. |
| format | info:eu-repo/semantics/article |
| id | INTA1331 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA13312018-01-10T18:37:07Z The role of leaf cellulose content in determining host plant preferences of three defoliating insects present in the Andean-Patagonian forest Pietrantuono, Ana Laura Bruzzone, Octavio Augusto Fernandez Arhex, Valeria Cristina Insecta Preferencias Alimentarias Plantas Huéspedes Celulosa Feeding Preferences Host Plants Cellulose Región Patagónica Los insectos fitófagos eligen sus recursos alimenticios según sus propias necesidades además de las propiedades de las plantas huésped, como las defensas biomecánicas. Las preferencias alimentarias de los insectos folívoros nativos del bosque andino-patagónico (Argentina) rara vez han sido estudiadas. Estos ambientes presentan una gran diversidad y abundancia de insectos asociados con árboles de los géneros Nothofagus y Lophozonia (Nothofagaceae), que representan las principales especies arbóreas de los bosques del hemisferio sur. Phytophagous insects choose their feeding resources according to their own requirements in addition to properties of the host plants, such as biomechanical defences. The feeding preferences of the native folivorous insects of the Andean-Patagonian forest (Argentina) have rarely been studied. These environments present a wide diversity and abundance of insects associated with trees of the Nothofagus and Lophozonia (Nothofagaceae) genera, which represent the main tree species of the forests of the southern hemisphere. In particular, Lophozonia alpina and Lophozonia obliqua are of great interest because they have a wide distribution, a high capacity for hybridization and exhibit great phenotypic plasticity. This versatility causes substantial variation in the biomechanical properties of leaves, affecting the feeding preferences of insects. The purpose of this work was to study the food selection behaviour of three leaf-chewing insects (Polydrusus nothofagii, Polydrusus roseaus (Coleoptera: Curculionidae) and Perzelia arda (Lepidoptera: Oecophoridae)) associated with L. alpina and L. obliqua as host plants. Based on their choices, our aim was to determine a preference scale for each insect species and the variables on which these preferences were based. Therefore, we selected trees of L. alpina and L. obliqua, measured several properties such as cellulose content and recorded which leaves were eaten. As a result, we determined that the three species of insects feed on both host plants but prefer the leaves of L. obliqua, with cellulose content being the main determining factor for their decisions. However, in the case of P. arda, there was a positive relationship between cellulose and host plant preference, whereas there was an opposite relationship for the weevils. We conclude that during feeding selection, there are some properties of the leaves that have a more important role than others and that the same property does not exert the same behavioural response in all folivorous insects. EEA Bariloche Fil: Pietrantuono, Ana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina Fil: Bruzzone, Octavio Augusto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina Fil: Fernandez Arhex, Valeria Cristina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina 2017-09-27T13:35:13Z 2017-09-27T13:35:13Z 2016 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion info:ar-repo/semantics/artículo http://hdl.handle.net/20.500.12123/1331 http://onlinelibrary.wiley.com/doi/10.1111/aec.12460/abstract 1442-9985 (Print) 1442-9993 (Online) DOI: 10.1111/aec.12460 eng info:eu-repo/semantics/restrictedAccess application/pdf Patagonia (general region) Austral ecology 42 (4) : 433–441. (June 2017) |
| spellingShingle | Insecta Preferencias Alimentarias Plantas Huéspedes Celulosa Feeding Preferences Host Plants Cellulose Región Patagónica Pietrantuono, Ana Laura Bruzzone, Octavio Augusto Fernandez Arhex, Valeria Cristina The role of leaf cellulose content in determining host plant preferences of three defoliating insects present in the Andean-Patagonian forest |
| title | The role of leaf cellulose content in determining host plant preferences of three defoliating insects present in the Andean-Patagonian forest |
| title_full | The role of leaf cellulose content in determining host plant preferences of three defoliating insects present in the Andean-Patagonian forest |
| title_fullStr | The role of leaf cellulose content in determining host plant preferences of three defoliating insects present in the Andean-Patagonian forest |
| title_full_unstemmed | The role of leaf cellulose content in determining host plant preferences of three defoliating insects present in the Andean-Patagonian forest |
| title_short | The role of leaf cellulose content in determining host plant preferences of three defoliating insects present in the Andean-Patagonian forest |
| title_sort | role of leaf cellulose content in determining host plant preferences of three defoliating insects present in the andean patagonian forest |
| topic | Insecta Preferencias Alimentarias Plantas Huéspedes Celulosa Feeding Preferences Host Plants Cellulose Región Patagónica |
| url | http://hdl.handle.net/20.500.12123/1331 http://onlinelibrary.wiley.com/doi/10.1111/aec.12460/abstract |
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