{"id":209904,"date":"2026-04-16T16:16:29","date_gmt":"2026-04-16T20:16:29","guid":{"rendered":"https:\/\/infoelnuevonorte.com\/?p=209904"},"modified":"2026-04-16T16:16:30","modified_gmt":"2026-04-16T20:16:30","slug":"la-salud-de-los-elefantes-ha-dependido-de-su-movilidad-y-riqueza-genetica-hoy-amenazada","status":"publish","type":"post","link":"https:\/\/infoelnuevonorte.com\/?p=209904","title":{"rendered":"La salud de los elefantes ha dependido de su movilidad y riqueza gen\u00e9tica, hoy amenazada"},"content":{"rendered":"<!--[if lt IE 9]><script>document.createElement('audio');<\/script><![endif]-->\n<audio class=\"wp-audio-shortcode\" id=\"audio-209904-1\" preload=\"none\" style=\"width: 100%;\" controls=\"controls\"><source type=\"audio\/mpeg\" src=\"https:\/\/infoelnuevonorte.com\/wp-content\/uploads\/2026\/04\/ttsmaker-vip-file-2026-4-16-16-15-39.mp3?_=1\" \/><a href=\"https:\/\/infoelnuevonorte.com\/wp-content\/uploads\/2026\/04\/ttsmaker-vip-file-2026-4-16-16-15-39.mp3\">https:\/\/infoelnuevonorte.com\/wp-content\/uploads\/2026\/04\/ttsmaker-vip-file-2026-4-16-16-15-39.mp3<\/a><\/audio>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">La salud de los\u00a0<strong>elefantes africanos<\/strong>\u00a0ha dependido hist\u00f3ricamente de su capacidad para moverse libremente y del intercambio de genes, pero la fragmentaci\u00f3n de sus h\u00e1bitat est\u00e1 provocando su\u00a0<strong>aislamiento gen\u00e9tico<\/strong>, especialmente en regiones del\u00a0<strong>noreste de \u00c1frica<\/strong>\u00a0donde la\u00a0<strong>endogamia<\/strong>\u00a0aumenta la\u00a0<strong>vulnerabilidad<\/strong>\u00a0a enfermedades.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">As\u00ed se pone de relieve en un estudio realizado por investigadores de varias universidades y de organizaciones conservacionistas, coordinados por la\u00a0<strong>Universidad de Copenhague<\/strong>, que han realizado un exhaustivo\u00a0<strong>mapeo gen\u00f3mico<\/strong>\u00a0de la especie a partir de las muestras almacenadas en biobancos durante las investigaciones que se han sucedido durante los \u00faltimos treinta a\u00f1os.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Este jueves publican los resultados de su trabajo en la revista\u00a0<strong>Nature Communications<\/strong>.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">El estudio constata que, aunque los\u00a0<strong>elefantes de bosque<\/strong>\u00a0y los de sabana han seguido caminos evolutivos distintos, existe evidencia de\u00a0<strong>hibridaci\u00f3n antigua<\/strong>\u00a0que ha influido en su composici\u00f3n actual, y para garantizar su supervivencia los cient\u00edficos apuestan por proteger los\u00a0<strong>corredores ecol\u00f3gicos<\/strong> que permiten la conectividad entre las diferentes poblaciones, evitando traslados artificiales entre regiones gen\u00e9ticamente diferentes.\u00a0<\/span><\/p>\n<h2 style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">An\u00e1lisis\u00a0<\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Los investigadores analizaron\u00a0<strong>232 genomas completos<\/strong>\u00a0de\u00a0<strong>elefantes de sabana<\/strong>\u00a0y de bosque, recolectados en\u00a0<strong>17 pa\u00edses africanos<\/strong>, y se trata del primer estudio gen\u00e9tico a gran escala que abarca todo el continente desde que se reconoci\u00f3 a los\u00a0<strong>elefantes africanos<\/strong>\u00a0como\u00a0<strong>dos especies distintas<\/strong>.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Los resultados muestran indicios gen\u00e9ticos de aislamiento en varias poblaciones, donde las manadas de elefantes han quedado separadas entre s\u00ed debido a una historia de\u00a0<strong>caza<\/strong>, as\u00ed como al crecimiento de la poblaci\u00f3n humana y sus necesidades de agricultura y desarrollo de infraestructuras.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Dos zonas remotas del\u00a0<strong>noreste de \u00c1frica<\/strong>, en\u00a0<strong>Eritrea y Etiop\u00eda<\/strong>, albergan poblaciones de elefantes reducidas y bastante aisladas; estos elefantes se encuentran a m\u00e1s de 400 kil\u00f3metros de otras poblaciones y est\u00e1n rodeados de asentamientos humanos y zonas agr\u00edcolas.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Los investigadores descubrieron all\u00ed un alto grado de\u00a0<strong>endogamia<\/strong>,\u00a0<strong>baja variabilidad gen\u00e9tica<\/strong> y una acumulaci\u00f3n de mutaciones ligeramente perjudiciales, lo que los hace m\u00e1s vulnerables a los cambios ambientales y a las enfermedades.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Un patr\u00f3n similar emerge en\u00a0<strong>\u00c1frica Occidental<\/strong>, donde las altas densidades de poblaci\u00f3n humana y una larga historia de\u00a0<strong>comercio de marfil<\/strong>\u00a0tambi\u00e9n han aislado y reducido las poblaciones de elefantes, aunque contrariamente a lo esperado, los\u00a0<strong>elefantes de sabana<\/strong>\u00a0en \u00c1frica centro-occidental no muestran la misma p\u00e9rdida de variaci\u00f3n gen\u00e9tica observada en las\u00a0<strong>poblaciones aisladas<\/strong>\u00a0de\u00a0<strong>Eritrea y Etiop\u00eda<\/strong>.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Ya era conocido que los\u00a0<strong>elefantes de sabana<\/strong>\u00a0y de bosque se hibridan en un peque\u00f1o n\u00famero de lugares donde confluyen sus h\u00e1bitats, pero este estudio tambi\u00e9n revel\u00f3 que incluso los\u00a0<strong>elefantes de sabana<\/strong> alejados de la zona h\u00edbrida presentan trazas de ascendencia de elefante de bosque.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Importancia de los corredores ecol\u00f3gicos<\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Los patrones de\u00a0<strong>flujo gen\u00e9tico<\/strong>\u00a0revelados en este estudio est\u00e1n determinados, en \u00faltima instancia, por un factor clave: la capacidad de los elefantes para desplazarse por el\u00a0<strong>paisaje<\/strong>.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Hoy en d\u00eda, seg\u00fan los investigadores, el efecto positivo de preservar el movimiento de los elefantes mediante la protecci\u00f3n del\u00a0<strong>paisaje<\/strong>\u00a0es evidente en el sur de \u00c1frica, en el\u00a0<strong>\u00c1rea de Conservaci\u00f3n Transfronteriza Kavango-Zambezi<\/strong>\u00a0, tambi\u00e9n conocida como la regi\u00f3n '<strong>KAZA<\/strong>', que abarca\u00a0<strong>cinco pa\u00edses<\/strong>\u00a0del sur de \u00c1frica (Angola, Botsuana, Namibia, Zambia y Zimbabue).<\/span><\/p>\n<ul class=\"list-text\" style=\"text-align: justify;\">\n<li><span style=\"font-size: 14pt;\">El espacio cubre una superficie de\u00a0<strong>520,000 kil\u00f3metros cuadrados<\/strong>\u00a0en una de las reservas naturales m\u00e1s grandes del mundo.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">En esta zona, los elefantes presentan una gran\u00a0<strong>diversidad gen\u00e9tica<\/strong>\u00a0debido a la estrecha conexi\u00f3n entre las poblaciones y el\u00a0<strong>intercambio gen\u00e9tico.\u00a0<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Los investigadores han comprobado que el\u00a0<strong>paisaje<\/strong>\u00a0a\u00fan permite el movimiento entre \u00e1reas protegidas, por lo que la salud gen\u00e9tica de los elefantes se mantiene relativamente intacta, y han incidido por ello en la importancia de la\u00a0<strong>coordinaci\u00f3n internacional<\/strong>\u00a0y transfronteriza y de proteger los paisajes y las conexiones para asegurar la supervivencia de estos animales.<\/span><\/p>\n<div class=\"read-more mb-7\" style=\"text-align: justify;\">\u00a0<\/div>\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div id=\"DenunciayAPP\" class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p><a href=\"https:\/\/whatsapp.com\/channel\/0029Va88WGP2ER6ZxD6TCa3U\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-155512\" src=\"https:\/\/infoelnuevonorte.com\/wp-content\/uploads\/2025\/10\/Canal-whatsapp-infoenn.jpeg\" alt=\"\" width=\"2046\" height=\"554\" 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As\u00ed se pone de relieve en un estudio realizado por investigadores de varias universidades y de organizaciones conservacionistas, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":209911,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,13],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>La salud de los elefantes ha dependido de su movilidad y riqueza gen\u00e9tica, hoy amenazada | El Nuevo Norte<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/infoelnuevonorte.com\/?p=209904\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La salud de los elefantes ha dependido de su movilidad y riqueza gen\u00e9tica, hoy amenazada | El Nuevo Norte\" \/>\n<meta property=\"og:description\" content=\"La salud de los\u00a0elefantes africanos\u00a0ha dependido hist\u00f3ricamente de su capacidad para moverse libremente y del intercambio de genes, pero la fragmentaci\u00f3n de sus h\u00e1bitat est\u00e1 provocando su\u00a0aislamiento gen\u00e9tico, especialmente en regiones del\u00a0noreste de \u00c1frica\u00a0donde la\u00a0endogamia\u00a0aumenta la\u00a0vulnerabilidad\u00a0a enfermedades. 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