{"id":26498,"date":"2025-12-08T10:30:54","date_gmt":"2025-12-08T16:30:54","guid":{"rendered":"https:\/\/staytv.cr\/?p=26498"},"modified":"2025-12-08T10:53:36","modified_gmt":"2025-12-08T16:53:36","slug":"estrategias-antidepredatorias-por-que-los-animales-brillan","status":"publish","type":"post","link":"https:\/\/staytv.cr\/index.php\/2025\/12\/08\/estrategias-antidepredatorias-por-que-los-animales-brillan\/","title":{"rendered":"Estrategias Antidepredatorias: Ciencia revela por qu\u00e9 algunos animales brillan y otros se esconden"},"content":{"rendered":"<p>Un estudio global publicado en la revista <i>Science<\/i> en septiembre de 2025, con participaci\u00f3n de Costa Rica, ha desentra\u00f1ado las razones detr\u00e1s de las <strong>Estrategias Antidepredatorias<\/strong> de los animales: mientras algunas especies usan colores brillantes para advertir su toxicidad, otras optan por el camuflaje para desaparecer en su entorno. Liderado por Iliana Medina de la Universidad de Melbourne y William Allen de la Universidad de Swansea, este experimento colaborativo involucr\u00f3 a m\u00e1s de 50 investigadores en 21 pa\u00edses de seis continentes, analizando c\u00f3mo la presi\u00f3n de depredadores, la abundancia de presas y las condiciones ambientales determinan estas t\u00e1cticas de supervivencia.<\/p>\n<div id='gallery-1' class='gallery galleryid-26498 gallery-columns-3 gallery-size-large'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/staytv.cr\/index.php\/2025\/12\/08\/estrategias-antidepredatorias-por-que-los-animales-brillan\/whatsapp-image-2025-12-05-at-2-47-40-pm\/'><img decoding=\"async\" width=\"1024\" height=\"768\" data-src=\"https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.40-PM-1024x768.jpeg\" class=\"attachment-large size-large lazyload\" alt=\"Imagen de Estrategias Antidepredatorias en animales estudiados\" aria-describedby=\"gallery-1-26499\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/768;\" data-srcset=\"https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.40-PM-1024x768.jpeg 1024w, https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.40-PM-300x225.jpeg 300w, https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.40-PM-150x113.jpeg 150w, https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.40-PM-768x576.jpeg 768w, https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.40-PM-860x645.jpeg 860w, https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.40-PM.jpeg 1280w\" data-sizes=\"auto\" data-original-sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-26499'>\n\t\t\t\tImagen de Estrategias Antidepredatorias en animales estudiados\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/staytv.cr\/index.php\/2025\/12\/08\/estrategias-antidepredatorias-por-que-los-animales-brillan\/whatsapp-image-2025-12-05-at-2-47-41-pm\/'><img decoding=\"async\" width=\"1024\" height=\"682\" data-src=\"https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.41-PM-1024x682.jpeg\" class=\"attachment-large size-large lazyload\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/682;\" data-srcset=\"https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.41-PM-1024x682.jpeg 1024w, https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.41-PM-300x200.jpeg 300w, https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.41-PM-150x100.jpeg 150w, https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.41-PM-768x512.jpeg 768w, https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.41-PM-1536x1023.jpeg 1536w, https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.41-PM-330x220.jpeg 330w, https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.41-PM-420x280.jpeg 420w, https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.41-PM-615x410.jpeg 615w, https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.41-PM-860x573.jpeg 860w, https:\/\/staytv.cr\/wp-content\/uploads\/WhatsApp-Image-2025-12-05-at-2.47.41-PM.jpeg 1600w\" data-sizes=\"auto\" data-original-sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<h2>Un experimento global para entender la evoluci\u00f3n del color<\/h2>\n<p>La investigaci\u00f3n sobre <strong>Estrategias Antidepredatorias<\/strong> surgi\u00f3 de la necesidad de unificar metodolog\u00edas dispersas en el estudio de defensas animales, como se discuti\u00f3 en un congreso de <i>Evolution<\/i>. Utilizando m\u00e1s de 15.000 presas artificiales \u2014\u00bbmariposas\u00bb de papel en colores naranja y negro (aposem\u00e1tico), caf\u00e9 cr\u00edptico y azul con negro (poco com\u00fan en la naturaleza), acompa\u00f1adas de larvas de tenebrio como recompensa\u2014, los cient\u00edficos replicaron el experimento en diversos ecosistemas, desde bosques tropicales hasta zonas templadas. En Costa Rica, el trabajo se realiz\u00f3 en Hacienda Bar\u00fa, un sitio con alta presi\u00f3n de depredadores debido a su rica biodiversidad tropical.<\/p>\n<h2>Resultados: No hay una estrategia universal<\/h2>\n<p>Los hallazgos del estudio sobre <strong>Estrategias Antidepredatorias<\/strong> muestran que no existe una t\u00e1ctica defensiva superior en todos los contextos. Seg\u00fan Carolina Esquivel, acad\u00e9mica de la Escuela de Ciencias Biol\u00f3gicas que lider\u00f3 la investigaci\u00f3n en Costa Rica, \u00abser aposem\u00e1tico funciona menos en lugares con mucha competencia entre depredadores, donde est\u00e1n m\u00e1s dispuestos a probar presas que podr\u00edan saber mal o ser t\u00f3xicas; ah\u00ed conviene m\u00e1s camuflarse\u00bb. Sin embargo, el camuflaje tampoco garantiza sobrevivir en ambientes muy iluminados, donde las presas cr\u00edpticas destacan, o cuando los depredadores aprenden a detectarlas, adapt\u00e1ndose r\u00e1pidamente en pocos d\u00edas.<\/p>\n<h2>Hacienda Bar\u00fa: Un hotspot de depredaci\u00f3n<\/h2>\n<p>En Hacienda Bar\u00fa, Costa Rica, la presi\u00f3n de depredadores fue una de las m\u00e1s altas del proyecto global sobre <strong>Estrategias Antidepredatorias<\/strong>, lo que Esquivel atribuye a la enorme comunidad de depredadores en los tr\u00f3picos. \u00abLa comunidad de depredadores aqu\u00ed es enorme, por eso fuimos a uno de los sitios con mayor tasa de ataques\u00bb, explic\u00f3. Curiosamente, algunos p\u00e1jaros insect\u00edvoros comenzaron a seguir al equipo de investigaci\u00f3n, reconociendo la rutina diaria de colocaci\u00f3n de modelos, evidenciando la r\u00e1pida capacidad de aprendizaje de los depredadores locales.<\/p>\n<h2>Desaf\u00edos personales y profesionales en la investigaci\u00f3n<\/h2>\n<p>El estudio, realizado a inicios de 2021 durante la pandemia, enfrent\u00f3 retos log\u00edsticos y personales para los investigadores involucrados en las <strong>Estrategias Antidepredatorias<\/strong>. Esquivel relat\u00f3 c\u00f3mo tuvo que completar ocho d\u00edas consecutivos de muestreo en Hacienda Bar\u00fa, recorriendo 6 km diarios en tres recorridos por un transecto de 2 km, sin asistentes debido a las restricciones por COVID-19. Adem\u00e1s, enfrent\u00f3 un desaf\u00edo personal al tener un beb\u00e9 de un a\u00f1o y estar en lactancia, necesitando el apoyo de su familia y esposo en el campo, destacando los retos adicionales que enfrentan las mujeres cient\u00edficas.<\/p>\n<h2>Contexto ecol\u00f3gico define la estrategia de defensa<\/h2>\n<p>Los resultados del estudio sobre <strong>Estrategias Antidepredatorias<\/strong> confirman que la evoluci\u00f3n del color defensivo depende del contexto ecol\u00f3gico: el tipo de depredadores, la cantidad de presas, la intensidad de la luz y la competencia por alimento determinan si conviene advertir con colores vistosos o esconderse mediante camuflaje. Iliana Medina subray\u00f3 la importancia de la colaboraci\u00f3n global: \u00abAlgunas preguntas en ecolog\u00eda implican una gama tan amplia de variables que solo la replicaci\u00f3n y el trabajo conjunto pueden acercarnos a comprender c\u00f3mo funciona la naturaleza\u00bb.<\/p>\n<h2>Cierre<\/h2>\n<p>El estudio global sobre <strong>Estrategias Antidepredatorias<\/strong>, publicado en <i>Science<\/i> en septiembre de 2025, revela por qu\u00e9 algunos animales optan por colores brillantes y otros por camuflaje, dependiendo de la presi\u00f3n de depredadores y las condiciones ambientales, con Costa Rica destacando en Hacienda Bar\u00fa por su alta actividad depredadora. Liderado por Iliana Medina y William Allen, y con la participaci\u00f3n de Carolina Esquivel en el pa\u00eds, este experimento con 15.000 presas artificiales muestra que no hay una t\u00e1ctica universal de defensa. Esta investigaci\u00f3n, fruto de la colaboraci\u00f3n internacional, aporta una nueva comprensi\u00f3n de la evoluci\u00f3n del color en la naturaleza, superando incluso retos como la pandemia y las barreras personales.<\/p>\n<p><strong>Enlaces sugeridos:<\/strong><\/p>\n<ul>\n<li>Lea m\u00e1s noticias en <a href=\"https:\/\/staytv.cr\" target=\"_blank\" rel=\"noopener\">staytv.cr<\/a>, da Click AC\u00c1.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un estudio global publicado en la revista Science en septiembre de 2025, con participaci\u00f3n de Costa Rica, ha desentra\u00f1ado las razones detr\u00e1s de las Estrategias Antidepredatorias de los animales: mientras algunas especies usan colores brillantes para advertir su toxicidad, otras optan por el camuflaje para desaparecer en su entorno. Liderado por Iliana Medina de la [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":26501,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"episode_type":"","audio_file":"","podmotor_file_id":"","podmotor_episode_id":"","cover_image":"","cover_image_id":"","duration":"","filesize":"","filesize_raw":"","date_recorded":"","explicit":"","block":"","itunes_episode_number":"","itunes_title":"","itunes_season_number":"","itunes_episode_type":"","footnotes":""},"categories":[417],"tags":[2471,2477,2470,2474,2472,2469,2473,2476,2475,2478],"class_list":{"0":"post-26498","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-reportajes","8":"tag-camuflaje-naturaleza","9":"tag-ciencia-biologica","10":"tag-colores-animales","11":"tag-costa-rica-investigacion","12":"tag-depredadores-presas","13":"tag-estrategias-antidepredatorias","14":"tag-estudio-global-ecologia","15":"tag-evolucion-color","16":"tag-hacienda-baru","17":"tag-noticias-cientificas"},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- 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