{"id":54692,"date":"2018-03-09T22:42:27","date_gmt":"2018-03-09T22:42:27","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/efecto-de-la-estructura-del-pastizal-sobre-el-banco-de-semillas-de-grama%c2%adneas-en-el-bosque-de-calden-prosopis-caldenia-de-la-provincia-de-la-pampa-argentina\/"},"modified":"2018-03-09T22:42:27","modified_gmt":"2018-03-09T22:42:27","slug":"efecto-de-la-estructura-del-pastizal-sobre-el-banco-de-semillas-de-grama%c2%adneas-en-el-bosque-de-calden-prosopis-caldenia-de-la-provincia-de-la-pampa-argentina","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/cordoba\/efecto-de-la-estructura-del-pastizal-sobre-el-banco-de-semillas-de-grama%c2%adneas-en-el-bosque-de-calden-prosopis-caldenia-de-la-provincia-de-la-pampa-argentina\/","title":{"rendered":"Efecto de la estructura del pastizal sobre el banco de semillas de gram\u00edneas en el bosque de calden (prosopis caldenia) de la provincia de la pampa (argentina)"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Morici Ernesto Francisco Atilio <\/strong><\/h2>\n<p>El uso excesivo al que fueron sometidas las comunidades herb\u00e1ceas del bosque de prosopis caldenia y la falta de fuegos ha ocasionando cambios estructurales de la vegetaci\u00f3n, transformando estas \u00e1reas en sitios de muy baja receptividad ganadera. El pastoreo de herb\u00edvoros provoca la desaparici\u00f3n de las especies forrajeras (poa liguaris nees ap. Steud., Piptochaetium napostaense (speg.) Hack., Stipa longiglumis phil., Y stipa tenuis phil.) Y simult\u00e1neamente aumentan las especies no forrajeras (stipa trichotoma nees, s.Tenuissima trin., S.Lchu (ruiz y pav.) Kunth y s.Brachicaeta gogron). en la tesis se caracterizan las diferencias estructurales y el banco de semillas de las gram\u00edneas, de los \u00abparches\u00bb de pastoreo y se aborda la posible recuperaci\u00f3n de los \u00abparches\u00bb dominados o codominado por gram\u00edneas no forrajeras. Se determinaron cobertura (total y por especie), densidad de gram\u00edneas perennes, diversidad y banco de semillas. Los parches de no forrajeras presentaron la m\u00e1xima cobertura total, siendo la principal especie stipa tric\u00f3toma. El banco de semillas de las gram\u00edneas perennes forrajeras (piptochaetium napostaense, poa ligularis y briza subaristata) y no forrajeras (stipa trichotoma y s.Tenuissima) es persistente (tipo iii). Por esta raz\u00f3n el pastizal del caldenal se podr\u00eda recuperar despu\u00e9s de un disturbio.  el banco de semillas de las gram\u00edneas anuales forrajeras (bromus brevis y panicum bergii) y no forrjaera (vulpia octoflora) es transitorio. el alto n\u00famero de semillas da\u00f1adas dar\u00eda indicios que la predaci\u00f3n de este ecosistema es muy importante, especialmente despu\u00e9s de la diseminaci\u00f3n. la germinaci\u00f3n en laboratorio de las gram\u00edneas forrajeras y no forrajeras no se vio afectada por los \u00abparches\u00bb donde se encontraban los cariopses. El incremento de gram\u00edneas forrajeras en parches codominados por forrajeras y dominados por no forrajeras seria casi imposible ya sea por la competencia (agua, luz y nutrientes), como as\u00ed tambi\u00e9n por<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Efecto de la estructura del pastizal sobre el banco de semillas de gram\u00edneas en el bosque de calden (prosopis caldenia) de la provincia de la pampa (argentina)<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Efecto de la estructura del pastizal sobre el banco de semillas de gram\u00edneas en el bosque de calden (prosopis caldenia) de la provincia de la pampa (argentina) <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Morici Ernesto Francisco Atilio <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 C\u00f3rdoba<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 25\/09\/2006<\/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>Valeriano Domenech Garcia<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: clemente Mata moreno <\/li>\n<li>Mar\u00eda no Fuentes garcia (vocal)<\/li>\n<li>Manuel Sanchez rodriguez (vocal)<\/li>\n<li> Megias rivas Mar\u00eda  dolores (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Morici Ernesto Francisco Atilio El uso excesivo al que fueron sometidas las comunidades herb\u00e1ceas del bosque de [&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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