{"id":3196369,"date":"2008-06-07T22:25:46","date_gmt":"2008-06-07T23:25:46","guid":{"rendered":"https:\/\/www.ozono21.com\/blog\/3196369\/sin-categoria\/investigador-del-csic-demuestra-que-un-ave-forestal-pone-huevos-de-menor-tamano-debido-al-cambio-climatico\/"},"modified":"2026-02-01T12:46:45","modified_gmt":"2026-02-01T10:46:45","slug":"huevos-de-menor-tamano-debido-al-cambio-climatico","status":"publish","type":"post","link":"https:\/\/www.ozono21.com\/blog\/alimentos\/huevos-de-menor-tamano-debido-al-cambio-climatico\/","title":{"rendered":"Huevos de menor tama\u00f1o debido al cambio clim\u00e1tico"},"content":{"rendered":"<p style=\"text-align: justify;\">\n<h2 style=\"text-align: justify;\"><strong><img loading=\"lazy\" decoding=\"async\" class=\"alignright\" style=\"margin: 5px 0px 0px 5px; cursor: hand; border: 0px;\"   title=\"Huevos de menor tama\u00f1o debido al cambio clim\u00e1tico\" src=\"https:\/\/www.ozono21.com\/blog\/wp-content\/uploads\/2008\/06\/huevos-mas-peque\u00f1os.jpg\" alt=\"huevos\" width=\"272\" height=\"232\" \/><a title=\"Ozono con los Alimentos\" href=\"https:\/\/www.ozono21.com\/sectores-pagina\/domesticos\/alimentos-cocina\/30\/\" target=\"_blank\" rel=\"noopener noreferrer\">El investigador del Consejo Superior de Investigaciones Cient\u00edficas (CSIC) Jaime Potti ha descubierto que el tama\u00f1o de los huevos del papamoscas cerrojillo-Ficedula hypoleuca- un ave forestal migratoria- ha disminuido de forma paulatina en los \u00faltimos 16 a\u00f1os debido al aumento de temperaturas a causa del cambio clim\u00e1tico.<\/a><\/strong><\/h2>\n<\/p>\n<p style=\"text-align: justify;\">\n<h2 style=\"text-align: justify;\"><strong><a title=\"Ozono con los Alimentos\" href=\"https:\/\/www.ozono21.com\/sectores-pagina\/domesticos\/alimentos-cocina\/30\/\" target=\"_blank\" rel=\"noopener noreferrer\">Este hecho es extraordinario, dado que en las aves insect\u00edvoras existe una relaci\u00f3n positiva entre las temperaturas que experimentan las hembras durante la formaci\u00f3n de los huevos y el tama\u00f1o de \u00e9stos. El trabajo se bas\u00f3 en mediciones de m\u00e1s de 6.000 huevos de cerca de 1.300 puestas.<\/a><\/STRONG><\/h2>\n<\/p>\n<p>Fuente: CSIC (05\/06\/2008)<\/p>\n<p style=\"text-align: justify;\">Las temperaturas medias del mes de mayo, la \u00e9poca de puesta de huevos, han aumentado 0,11\u00ba C por a\u00f1o desde 1980 en el \u00e1rea donde se ha realizado el estudio, La Hiruela, en la sierra de Madrid. Potti se\u00f1ala: \u201cEl aumento de las temperaturas en las \u00faltimas d\u00e9cadas podr\u00eda ser potencialmente beneficioso para la formaci\u00f3n de los huevos en las aves insect\u00edvoras, puesto que los insectos que les sirven de alimento a estas aves suelen ser m\u00e1s activos y abundantes en regiones y en \u00e9pocas c\u00e1lidas. Sin embargo, esta cuesti\u00f3n no parece ser tan sencilla\u201d.<\/p>\n<p style=\"text-align: justify;\">La contradicci\u00f3n entre ambas tendencias t\u00e9rmicas que afectan al tama\u00f1o de los huevos podr\u00eda explicarse por el desajuste entre la llegada del papamoscas (que pasa el invierno en el \u00c1frica subsahariana) y el adelanto de la primavera en la sierra madrile\u00f1a, como ya demostrara Potti en un trabajo de 2003 publicado en la revista Global Change Biology.<\/p>\n<p><big><strong>El Papamoscas, un ave de costumbres<\/strong><\/big><\/p>\n<p style=\"text-align: justify;\"><strong>La hip\u00f3tesis del investigador del CSIC es que el papamoscas, al contrario que otras aves migratorias como las golondrinas, no ha adaptado la fecha de sus migraciones al adelanto de la primavera, por lo que acaban criando en \u00e9pocas que no son las \u00f3ptimas.<\/strong><\/p>\n<p style=\"text-align: justify;\">\u201cLos p\u00e1jaros parecen estar criando en \u00e9pocas sub\u00f3ptimas, tanto para el crecimiento de los pollos, como para la formaci\u00f3n de los huevos que realizan las hembras, que probablemente no encuentran alimento de la calidad y\/o cantidad necesarias para formar huevos de mayor tama\u00f1o, incluso en las \u00e9pocas m\u00e1s c\u00e1lidas, cuando m\u00e1s alimento disponible hay\u201d, narra Potti.<\/p>\n<p style=\"text-align: justify;\"><strong>Este hecho provoca, seg\u00fan las conclusiones del estudio que se publica en el \u00faltimo n\u00famero de la revista Acta Oecologica-International Journal of Ecology, que se generen huevos de menor volumen con una probabilidad menor de eclosionar, lo que ha contribuido al descenso del \u00e9xito reproductivo de la poblaci\u00f3n en las dos \u00faltimas d\u00e9cadas.<\/strong><\/p>\n<p style=\"text-align: justify;\">El papamoscas cerrojillo fue elegido para el estudio porque es una especie que Potti ha estudiado de forma casi ininterrumpida desde hace 23 a\u00f1os en la sierra madrile\u00f1a. Esta ave forestal migratoria prefiere nidales artificiales para la reproducci\u00f3n, lo que facilita su seguimiento.<\/p>\n<table border=\"3\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td bgcolor=\"#3b7cff\" height=\"25\" width=\"600\" align=\"center\"><strong><a title=\"Actualidad ACCION del OZONO\" href=\"https:\/\/www.ozono21.com\/actualidad-interna\/accion-del-ozono\/423\/\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ozono21.com\/blog\/wp-content\/uploads\/2014\/06\/Noticias-Relacionadas.png\" alt=\"Noticias Relacionadas\" width=\"600\" height=\"25\" border=\"0\" \/><\/a><\/strong>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><big><\/p>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td width=\"150\" height=\"150\" align=\"center\"><a title=\"La c\u00e1scara de los huevos una defensa contra pat\u00f3genos\" href=\"https:\/\/www.ozono21.com\/blog\/toxinas\/la-cascara-de-los-huevos-una-defensa-contra-patogenos\/\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ozono21.com\/blog\/wp-content\/uploads\/2013\/09\/huevos4-150x141.jpg\" alt=\"huevos\" title=\"La c\u00e1scara de los huevos una defensa contra pat\u00f3genos\" width=\"150\" height=\"141\" class=\"alignleft size-thumbnail wp-image-5203662\" style=\"margin: 10px 10px 0px 30px; border: 0px;\"    \/><\/a><\/td>\n<td width=\"300\" height=\"150\" style=\"text-align: left; vertical-align: middle;\"><strong><a title=\"La c\u00e1scara de los huevos una defensa contra pat\u00f3genos\" href=\"https:\/\/www.ozono21.com\/blog\/toxinas\/la-cascara-de-los-huevos-una-defensa-contra-patogenos\/\">La c\u00e1scara de los huevos una defensa contra pat\u00f3genos<\/a><\/strong><\/li>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"150\" height=\"150\" align=\"center\"><a title=\"Aplican la tecnolog\u00eda de pulsos de luz para descontaminar los huevos de salmonella\" href=\"https:\/\/www.ozono21.com\/blog\/bacterias\/aplican-la-tecnologia-de-pulsos-de-luz-para-descontaminar-los-huevos-de-salmonella\/\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ozono21.com\/blog\/wp-content\/uploads\/2013\/09\/huevos_1-150x150.jpg\" alt=\"huevos\" title=\"Tecnolog\u00eda de pulsos de luz para descontaminar los huevos de Salmonella\" width=\"150\" height=\"150\" class=\"alignleft size-thumbnail wp-image-5203660\" style=\"margin: 10px 10px 0px 30px; 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autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_3196369\" class=\"pvc_stats total_only  \" data-element-id=\"3196369\" style=\"\"><i class=\"pvc-stats-icon small\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 12.8-12.8V204.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v134.4c0 6.4 6.4 12.8 12.8 12.8zM496 400H48V80c0-8.84-7.16-16-16-16H16C7.16 64 0 71.16 0 80v336c0 17.67 14.33 32 32 32h464c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16zm-387.2-48h22.4c6.4 0 12.8-6.4 12.8-12.8v-70.4c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v70.4c0 6.4 6.4 12.8 12.8 12.8z\" class=\"\"><\/path><\/svg><\/i> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"16\" alt=\"Loading\" src=\"https:\/\/www.ozono21.com\/blog\/wp-content\/plugins\/page-views-count\/ajax-loader-2x.gif\" border=0 \/><\/p>\n<div class=\"pvc_clear\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>El investigador del Consejo Superior de Investigaciones Cient\u00edficas (CSIC) Jaime Potti ha descubierto que el tama\u00f1o de los huevos del papamoscas cerrojillo-Ficedula hypoleuca- un ave forestal migratoria- ha disminuido de forma paulatina en los \u00faltimos 16 a\u00f1os debido al aumento &hellip; 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