{"id":6854,"date":"2026-06-04T19:00:20","date_gmt":"2026-06-04T19:00:20","guid":{"rendered":"https:\/\/pawel.stefanoff.pl\/bugs\/?p=6854"},"modified":"2026-07-21T17:58:40","modified_gmt":"2026-07-21T17:58:40","slug":"2026-06-mayfly-encounter-by-a-swedish-lake-es","status":"publish","type":"post","link":"https:\/\/pawel.stefanoff.pl\/bugs\/es\/posts\/2026-06-mayfly-encounter-by-a-swedish-lake-es\/","title":{"rendered":"Cayendo del cielo: Un afortunado encuentro con una ef\u00edmera junto a un lago sueco"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Les presento a la ef\u00edmera com\u00fan (<em>Ephemera vulgata<\/em>), un insecto fascinante com\u00fan en Europa y partes de Asia que lleva el concepto de &#8220;vivir el momento&#8221; a un extremo verdaderamente brutal. Estas criaturas pasan la gran mayor\u00eda de su vida\u2014hasta dos a\u00f1os\u2014sumergidas en el agua en estado de ninfa, ocultas en madrigueras tubulares de lodo o arena en el fondo de estanques y r\u00edos de corriente lenta. Para sobrevivir en el ambiente con poco ox\u00edgeno de los sedimentos fangosos, las ninfas agitan branquias plumosas en sus abd\u00f3menes, actuando como diminutas bombas biol\u00f3gicas que generan una corriente constante de agua fresca y oxigenada a trav\u00e9s de sus t\u00faneles. Pero su transici\u00f3n al aire es donde la biolog\u00eda se vuelve asombrosa. Las ef\u00edmeras son de los pocos insectos que poseen una etapa alada previa a la edad adulta llamada subimago. Emergen del agua con alas, vuelan hacia la vegetaci\u00f3n de la orilla y mudan una \u00faltima vez para convertirse en adultos del todo maduros (imago). Una vez que alcanzan esta etapa final, carecen por completo de aparato bucal y de sistema digestivo. Literalmente, no pueden comer. Condenados a vivir \u00fanicamente de las reservas de energ\u00eda acumuladas durante su juventud, tienen solo unas pocas horas o un par de d\u00edas para aparearse antes de morir de inanici\u00f3n. Para lograrlo, los machos realizan hipn\u00f3ticas &#8220;danzas nupciales&#8221; a\u00e9reas, subiendo y bajando en grandes enjambres donde las hembras se adentran para aparearse en pleno vuelo. Durante mi largo viaje de cicloturismo por Suecia y Finlandia, vi muchas de estos enjambres a lo largo de las orillas de los lagos, y tuve la gran suerte de ver a esta ef\u00edmera caer del cielo para descansar durante un par de minutos cruciales, dej\u00e1ndome tomar unas fotograf\u00edas bonitas.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les presento a la ef\u00edmera com\u00fan (Ephemera vulgata), un insecto fascinante com\u00fan en Europa y partes de Asia que lleva [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":6837,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","ast-disable-related-posts":"","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-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[418,492],"tags":[],"countries":[254,270],"order-category":[1188,1194,161],"class_list":["post-6854","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-omnivoros","category-saprofagos","countries-europa","countries-suecia","order-category-insectos-efimeras","order-category-insectos-efimeras-efemeropteras","order-category-insectos"],"_links":{"self":[{"href":"https:\/\/pawel.stefanoff.pl\/bugs\/wp-json\/wp\/v2\/posts\/6854","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pawel.stefanoff.pl\/bugs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pawel.stefanoff.pl\/bugs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pawel.stefanoff.pl\/bugs\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/pawel.stefanoff.pl\/bugs\/wp-json\/wp\/v2\/comments?post=6854"}],"version-history":[{"count":1,"href":"https:\/\/pawel.stefanoff.pl\/bugs\/wp-json\/wp\/v2\/posts\/6854\/revisions"}],"predecessor-version":[{"id":6862,"href":"https:\/\/pawel.stefanoff.pl\/bugs\/wp-json\/wp\/v2\/posts\/6854\/revisions\/6862"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pawel.stefanoff.pl\/bugs\/wp-json\/wp\/v2\/media\/6837"}],"wp:attachment":[{"href":"https:\/\/pawel.stefanoff.pl\/bugs\/wp-json\/wp\/v2\/media?parent=6854"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pawel.stefanoff.pl\/bugs\/wp-json\/wp\/v2\/categories?post=6854"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pawel.stefanoff.pl\/bugs\/wp-json\/wp\/v2\/tags?post=6854"},{"taxonomy":"countries","embeddable":true,"href":"https:\/\/pawel.stefanoff.pl\/bugs\/wp-json\/wp\/v2\/countries?post=6854"},{"taxonomy":"order-category","embeddable":true,"href":"https:\/\/pawel.stefanoff.pl\/bugs\/wp-json\/wp\/v2\/order-category?post=6854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}