{"id":75814,"date":"2018-03-09T23:21:06","date_gmt":"2018-03-09T23:21:06","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/efectes-de-la-invasio-de-la-formiga-argentina-linepithema-humile-mayr-sobre-el-proces-de-dispersio-de-llavors-de-plantes-mediterra-nies\/"},"modified":"2018-03-09T23:21:06","modified_gmt":"2018-03-09T23:21:06","slug":"efectes-de-la-invasio-de-la-formiga-argentina-linepithema-humile-mayr-sobre-el-proces-de-dispersio-de-llavors-de-plantes-mediterra-nies","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/efectes-de-la-invasio-de-la-formiga-argentina-linepithema-humile-mayr-sobre-el-proces-de-dispersio-de-llavors-de-plantes-mediterra-nies\/","title":{"rendered":"Efectes de la invasi\u00f3 de la formiga argentina, linepithema humile (mayr), sobre el proc\u00e9s de dispersi\u00f3 de llavors de plantes mediterr\u00c1\u00a0nies."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jordi Oliveras Huix <\/strong><\/h2>\n<p>La hormiga invasora linepithema humile (mayr), tambi\u00e9n conocida como la hormiga argentina, es una especie presente en la pen\u00ednsula ib\u00e9rica. En esta tesis se ha estudiado como afecta la presencia de esta especie plaga a la comunidad de hormigas aut\u00f3ctonas y al proceso de dispersi\u00f3n de semillas de plantas mediterr\u00e1neas. El estudio se realiz\u00f3 en un \u00e1rea de alcornocal y matorral de estepas y brezo situada en el nordeste peninsular, en la provincia de girona, cerca de la l\u00ednea de costa mediterr\u00e1nea. uno de los primeros y mas notables efectos de la invasi\u00f3n en nuestras \u00e1reas de estudio es la dram\u00e1tica alteraci\u00f3n de la comunidad de hormigas, en forma de una reducci\u00f3n de la riqueza espec\u00edfica y de la homogeneidad de abundancias. Adem\u00e1s, en las zonas invadidas no permanece ninguna especie de hormiga aut\u00f3ctona dispersante de semillas. A casua de la gran abundancia de obreras de la hormiga argentina en las zonas invadida, y de su elevado rito de actividad, esta especie lleva a cabo un intens\u00edsimo rastreo del suelo, lo que le permite localizar los recursos en un tiempo menor que las hormigas aut\u00f3ctonas de las zonas no invadidas. No obstante la apertura mandibular de la comunidad de hormigas se ve muy disminuida en las zonas invadidas a causa de la desaparici\u00f3n de las especies aut\u00f3ctonas, la mayor\u00eda  de las de mayor tama\u00f1o que la hormiga artentina, lo que podr\u00eda limitar la capacidad de manipulaci\u00f3n del entorno que tiene la comunidad de hormigas en las zonas invadidas, y podr\u00eda explicar la no sustituci\u00f3n de algunos de los roles que llevaban a cabo las especies de hormigas aut\u00f3ctonas antes de la invasi\u00f3n. la hormiga argentina se muestra atra\u00edda por las semillas de las nueve especies vegetales estudiadas (2 euforbi\u00e1ceas: euphorbia biumbellata y e. Characias; 2 compuestas; cirsium vulgare y galactites tomentosa; y 5 papilion\u00e1ceas genista linifolia, g. Monspessulana, g.Triflora, sarothamnus arboreus y ulex parviflorus), llega<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Efectes de la invasi\u00f3 de la formiga argentina, linepithema humile (mayr), sobre el proc\u00e9s de dispersi\u00f3 de llavors de plantes mediterr\u00c1\u00a0nies.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Efectes de la invasi\u00f3 de la formiga argentina, linepithema humile (mayr), sobre el proc\u00e9s de dispersi\u00f3 de llavors de plantes mediterr\u00c1\u00a0nies. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jordi Oliveras Huix <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Girona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 15\/07\/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: xavier Espadaler gelabert <\/li>\n<li>Jos\u00e9 Alberto Tinaut ranera (vocal)<\/li>\n<li>emili Garc\u00eda-berthou (vocal)<\/li>\n<li>soledad Carpintero ortega (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jordi Oliveras Huix La hormiga invasora linepithema humile (mayr), tambi\u00e9n conocida como la hormiga argentina, es una [&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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