{"id":91981,"date":"2018-03-11T10:10:53","date_gmt":"2018-03-11T10:10:53","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/senales-sexuales-y-contaminacion-por-petroleo-en-un-ave-marina\/"},"modified":"2018-03-11T10:10:53","modified_gmt":"2018-03-11T10:10:53","slug":"senales-sexuales-y-contaminacion-por-petroleo-en-un-ave-marina","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ornitologia\/senales-sexuales-y-contaminacion-por-petroleo-en-un-ave-marina\/","title":{"rendered":"Se\u00f1ales sexuales  y contaminaci\u00f3n por petr\u00f3leo en un ave marina"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Crist\u00f3bal P\u00e9rez P\u00e9rez <\/strong><\/h2>\n<p>El objetivo principal de la tesis es estudiar si las se\u00f1ales sexuales de un ave marina pueden reflejar la exposici\u00f3n a una contaminaci\u00f3n por petr\u00f3leo. Para ello se analiz\u00f3 experimentalmente si la mancha roja del pico de la gaviota patiamarilla (larus cachinans) depende de la disponibilidad de antioxidantes y de si su expresi\u00f3n se ve afectada por una exposici\u00f3n a hidrocarburos polic\u00edclicos arom\u00e1ticos. Se encontr\u00f3 que el tama\u00f1o de la mancha roja es una se\u00f1al dependiente de carotenoides y que refleja el estatus antioxidante del individuo. Adem\u00e1s, la exposici\u00f3n experimental al petr\u00f3leo afect\u00f3 negativamente el tama\u00f1o de la mancha roja. Por tanto, se concluye que existe un compromiso entre el uso de cartenoides para las funciones fisiol\u00f3gicas y el uso de estos compuestos como pigmentos. Se encontr\u00f3 que dichos compromisos son distintos para machos y hembras.  tras el derrame del buque prestige, se estudi\u00f3 a corto y a largo plazo si los hidrocarburos polic\u00edclicos arom\u00e1ticos en la sangre de gaviotas patiamarillas afectadas podr\u00edan ser \u00fatiles como biomarcadores de este tipo de eventos de contaminaci\u00f3n y se investig\u00f3 si la mancha roja del pico se vio afectada por dicho evento. Se encontr\u00f3 que la concentraci\u00f3n de los hidrocarburos en sangre refleja la exposici\u00f3n al petr\u00f3leo. Adem\u00e1s, se encontr\u00f3 que la glucosa, el f\u00f3sforo inorg\u00e1nico, la aspartato aminotransferasa (ast)  y la gamma glutamiltransferasa (ggt) son tambi\u00e9n buenos indicadores de exposici\u00f3n al petr\u00f3leo. El tama\u00f1o de la mancha roja, una coloraci\u00f3n dependiente de carotenoides, se vio afectada por la condici\u00f3n del individuo e indic\u00f3 el grado de los da\u00f1os hep\u00e1ticos tras la exposici\u00f3n a una contaminaci\u00f3n por petr\u00f3leo.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Se\u00f1ales sexuales  y contaminaci\u00f3n por petr\u00f3leo en un ave marina<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Se\u00f1ales sexuales  y contaminaci\u00f3n por petr\u00f3leo en un ave marina <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Crist\u00f3bal P\u00e9rez P\u00e9rez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Vigo<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 27\/02\/2009<\/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>Alberto Velando Rodriguez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: daniel Oro de ribas <\/li>\n<li>Rafael Mateo soria (vocal)<\/li>\n<li>david Alvarez fernandez (vocal)<\/li>\n<li>Carlos Alonso alvarez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Crist\u00f3bal P\u00e9rez P\u00e9rez El objetivo principal de la tesis es estudiar si las se\u00f1ales sexuales de un [&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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