{"id":77607,"date":"2005-02-12T00:00:00","date_gmt":"2005-02-12T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/efecte-de-la-formiga-argentina-en-la-pollinitzacio-de-diverses-especies-mediterranies\/"},"modified":"2005-02-12T00:00:00","modified_gmt":"2005-02-12T00:00:00","slug":"efecte-de-la-formiga-argentina-en-la-pollinitzacio-de-diverses-especies-mediterranies","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/zoologia\/efecte-de-la-formiga-argentina-en-la-pollinitzacio-de-diverses-especies-mediterranies\/","title":{"rendered":"Efecte de la formiga argentina en la pollinitzaci\u00f3 de diverses esp\u00e9cies mediterr\u00e1nies"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Xavier Blancafort Pujols <\/strong><\/h2>\n<p>Los principales pol-linizadores de euphorbia characias, las especie utilizada en la mayor\u00eda de experimentos eran 4 especies de dipteros (calliphora vomitoria, eristalis tenax, episyrphus balteatus y sarcophaga carnaria). Si bien la polimizaci\u00f3n por dipteros no es rara, hay muy pocos casos descritos de especies vegetales polinizadas por este orden de insectos. la hormiga argentina (linepithema humile), una especie invasora originaria de las orillas del r\u00edo paran\u00e1, era un visitante habitual de esta planta. Su presencia en la inflorescencias ten\u00eda un efecto re pelente, las inflorescencias ocupadas por esta hormiga recib\u00edan menos visitantes y, algunos de ellos, visitaban menos flores y recorr\u00edan mas distancia entre ellas. en las zonas invadidas por la hormiga argentina desaparec\u00edan la mayor\u00eda de especies de hormigas aut\u00f3ctonas, algunas de las cuales seguramente son buenas polinizadoras de algunas plantas, como por ejemplo, euphorbia biumbellata (otra especie utilizada en este estudio9. la invasi\u00f3n de la hormiga argentina no afectar\u00eda a la comunidad de polinizadores en general. Cuando de comparo la producci\u00f3n de frutos y semillas para sarothamnus arboreus, genista monspessulana, lavandula stoechas,  cistus salviiforlius y cistus monspelliensis no se encontraron diferencias entre zonas (en el mismo estudio tambi\u00e9n se constat\u00f3 que estas especies eran al\u00f3genas polinizadas necesariamente por insectos voladores). S\u00f3lo dos especies produc\u00edan un menor n\u00famero de frutos y semillas en las zonas invadidas. Euphorbia characias y euphorbia biumbellata. Esta menor producci\u00f3n estar\u00eda causada por el efecto repelente de hormigas aut\u00f3ctonas polinizadoras.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Efecte de la formiga argentina en la pollinitzaci\u00f3 de diverses esp\u00e9cies mediterr\u00e1nies<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Efecte de la formiga argentina en la pollinitzaci\u00f3 de diverses esp\u00e9cies mediterr\u00e1nies <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Xavier Blancafort Pujols <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Girona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 02\/12\/2005<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Crisanto G\u00f3mez L\u00f3pez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jos\u00e9 Mar\u00eda G\u00f3mez reyes <\/li>\n<li>Jos\u00e9 Alberto Tinaut ranera (vocal)<\/li>\n<li>xavier Espadaler gelarbert (vocal)<\/li>\n<li>josep Mar\u00eda Bas lay (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Xavier Blancafort Pujols Los principales pol-linizadores de euphorbia characias, las especie utilizada en la mayor\u00eda de experimentos [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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