{"id":104571,"date":"2018-03-11T10:27:39","date_gmt":"2018-03-11T10:27:39","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/entre-la-ecologa%c2%ada-y-la-qua%c2%admica-ambiental-las-aves-pelagicas-como-indicadores-de-la-contaminacion-ambiental\/"},"modified":"2018-03-11T10:27:39","modified_gmt":"2018-03-11T10:27:39","slug":"entre-la-ecologa%c2%ada-y-la-qua%c2%admica-ambiental-las-aves-pelagicas-como-indicadores-de-la-contaminacion-ambiental","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ornitologia\/entre-la-ecologa%c2%ada-y-la-qua%c2%admica-ambiental-las-aves-pelagicas-como-indicadores-de-la-contaminacion-ambiental\/","title":{"rendered":"Entre la ecolog\u00eda y la qu\u00edmica ambiental: las aves pel\u00e1gicas como indicadores de la contaminaci\u00f3n ambiental"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jos\u00e9 Luis Roscales Garc\u00eda <\/strong><\/h2>\n<p>Exposure to contaminants, such as persistent organic pollutants (pops) is currently regarded a serious anthropogenic threat to marine predators and their food webs. Exposure to contaminants by marine wildlife is related to their trophic ecology, distribution and movements. However, the contribution of these biological features to contamination levels remains poorly understood in most marine predators, including seabirds. New methodologies, such as stable isotope analyses or a wide array of devices to track movement at different spatial and temporal scales can usefully provide new light into this issue. Although stable isotope signatures in marine wildlife provide valuable information about their trophic ecology, isotopic baseline levels also show geographical differences. Therefore, to understand isotopic differences among separate wildlife populations we first need to evaluate the influence of spatial variability in stable isotope signatures. In the present thesis, some ecological factors, mainly feeding ecology, breeding locality and movements, and their influence shaping the isotopic signatures and the contaminant burdens were examined in most procellariiformes breeding in the northeast atlantic ocean and the mediterranean sea. In particular, the isotopic signatures of carbon and nitrogen as well as pah, pcb and ddt burdens in seabirds were determined. In this study, firstly, we evaluate the relative influence of geographic origin and trophic ecology shaping stable isotope signatures and contaminant burdens in pelagic seabirds. Then we expose the spatial patterns in the isotopic signatures, ocs and pahs that emerge among mediterranean and northeast atlantic seabirds. Secondly, we show that the trophic ecology of each seabird species is fairly constant throughout their breeding distributions, but clearly differ among species, pointing out the marked relationship of seabird trophic ecology with their pcb, ddt and pah burdens. Overall, this study underlines the usefulness of combining environmental chemistry methodologies with new approaches in the study of animal ecology, showing the value of pelagic seabirds in marine contamination monitoring.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Entre la ecolog\u00eda y la qu\u00edmica ambiental: las aves pel\u00e1gicas como indicadores de la contaminaci\u00f3n ambiental<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Entre la ecolog\u00eda y la qu\u00edmica ambiental: las aves pel\u00e1gicas como indicadores de la contaminaci\u00f3n ambiental <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jos\u00e9 Luis Roscales Garc\u00eda <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 29\/10\/2010<\/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>Jacob Gonzalez Solis Bou<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Mar\u00eda asunci\u00f3n Borrell thi\u00f3 <\/li>\n<li>Mar\u00eda cristina Fossi (vocal)<\/li>\n<li>  (vocal)<\/li>\n<li>  (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jos\u00e9 Luis Roscales Garc\u00eda Exposure to contaminants, such as persistent organic pollutants (pops) is currently regarded a [&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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