{"id":98387,"date":"2026-02-02T00:19:54","date_gmt":"2026-02-01T23:19:54","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=98387"},"modified":"2026-02-02T05:03:30","modified_gmt":"2026-02-02T04:03:30","slug":"ledni-medvedi-tloustnou-navzdory-tajicimu-ledu","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2026\/02\/02\/ledni-medvedi-tloustnou-navzdory-tajicimu-ledu\/","title":{"rendered":"Ledn\u00ed medv\u011bdi tloustnou \u2013 navzdory taj\u00edc\u00edmu ledu"},"content":{"rendered":"<div id=\"fb-root\"><\/div>\n<p><strong><span dir=\"auto\">Ledn\u00ed medv\u011bdi zjevn\u011b tlustnou, t\u011b\u017e\u0161\u00ed a zdrav\u011bj\u0161\u00ed. Nov\u00e1 dlouhodob\u00e1 studie o \u0160picberk\u00e1ch, norsk\u00e9m souostrov\u00ed, vykresluje obraz, kter\u00fd v\u016fbec neodpov\u00edd\u00e1 p\u0159evl\u00e1daj\u00edc\u00edmu narativu o klimatick\u00e9 katastrof\u011b.<\/span><\/strong><\/p>\n<p><span dir=\"auto\">Po l\u00e9ta se lidem \u0159\u00edk\u00e1, \u017ee zm\u011bna klimatu a \u00fadajn\u00e9 t\u00e1n\u00ed arktick\u00e9ho ledu \u0161kod\u00ed ledn\u00edm medv\u011bd\u016fm. Realita v\u0161ak toto neust\u00e1l\u00e9 zastra\u0161ov\u00e1n\u00ed jednodu\u0161e odm\u00edt\u00e1 podporovat. M\u00edsto toho, aby byla zv\u00ed\u0159ata vykreslov\u00e1na jako vyhubl\u00e9 symboly apokalypsy, jsou\u00a0<\/span><a href=\"https:\/\/www.bbc.com\/news\/articles\/cx2l1xpz03no\"><span dir=\"auto\">siln\u011bj\u0161\u00ed ne\u017e kdy d\u0159\u00edve<\/span><\/a><span dir=\"auto\"> \u2013 a to od za\u010d\u00e1tku 90. let, zat\u00edmco po\u010det dn\u016f bez ledu se od t\u00e9 doby zv\u00fd\u0161il.<\/span><\/p>\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\">\n<div class=\"wp-block-embed__wrapper\">\n<div class=\"twitter-tweet twitter-tweet-rendered\"><iframe id=\"twitter-widget-0\" class=\"\" title=\"X P\u0159\u00edsp\u011bvek\" src=\"https:\/\/platform.twitter.com\/embed\/Tweet.html?dnt=true&amp;embedId=twitter-widget-0&amp;features=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%3D%3D&amp;frame=false&amp;hideCard=false&amp;hideThread=false&amp;id=2016932191930839357&amp;lang=cs&amp;origin=https%3A%2F%2Freport24.news%2Feisbaeren-werden-dicker-und-das-trotz-schmelzendem-eis%2F&amp;sessionId=30bf15256064bc00dce395e4076a9813a1fcfad7&amp;theme=light&amp;widgetsVersion=2615f7e52b7e0%3A1702314776716&amp;width=550px\" frameborder=\"0\" scrolling=\"no\" allowfullscreen=\"allowfullscreen\" data-tweet-id=\"2016932191930839357\" data-mce-fragment=\"1\"><\/iframe><\/div>\n<\/div>\n<\/figure>\n<p><span dir=\"auto\">V\u00fdzkumn\u00edci z Norsk\u00e9ho pol\u00e1rn\u00edho institutu ve skute\u010dnosti o\u010dek\u00e1vali opak. Mo\u0159sk\u00fd led je koneckonc\u016f pova\u017eov\u00e1n za hlavn\u00ed lovi\u0161t\u011b ledn\u00edch medv\u011bd\u016f, bez kter\u00e9ho by \u00fadajn\u011b sotva p\u0159e\u017eili. Zd\u00e1 se v\u0161ak, \u017ee tato zv\u00ed\u0159ata jsou p\u0159izp\u016fsobiv\u011bj\u0161\u00ed, ne\u017e se d\u0159\u00edve myslelo. Mezi lety 1992 a 2019 bylo zm\u011b\u0159eno a zv\u00e1\u017eeno 770 dosp\u011bl\u00fdch ledn\u00edch medv\u011bd\u016f \u2013\u00a0<\/span><a href=\"https:\/\/www.nature.com\/articles\/s41598-025-33227-9\"><span dir=\"auto\">s jasn\u00fdm v\u00fdsledkem<\/span><\/a><span dir=\"auto\">\u00a0: jejich tukov\u00e9 z\u00e1soby se v\u00fdrazn\u011b zv\u00fd\u0161ily. \u201e\u010c\u00edm tlust\u0161\u00ed medv\u011bd, t\u00edm l\u00e9pe,\u201c \u0159\u00edk\u00e1 vedouc\u00ed studie Jon Aars.<\/span><\/p>\n<p><span dir=\"auto\">Medv\u011bdi objevili nov\u00e9 zdroje potravy. M\u00edsto v\u00fdhradn\u00edho lovu tule\u0148\u016f z ledu st\u00e1le \u010dast\u011bji vyu\u017e\u00edvaj\u00ed ko\u0159ist na sou\u0161i. Na jejich j\u00eddeln\u00ed\u010dku se nyn\u00ed \u010dast\u011bji objevuj\u00ed sobi a zejm\u00e9na mro\u017ei. Ti jsou od 50. let 20. stolet\u00ed p\u0159\u00edsn\u011b chr\u00e1n\u011bni, jejich populace se obnovila \u2013 a nyn\u00ed poskytuj\u00ed dostatek energeticky bohat\u00e9ho tuku.<\/span><\/p>\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\">\n<div class=\"wp-block-embed__wrapper\">\n<div class=\"twitter-tweet twitter-tweet-rendered\"><iframe id=\"twitter-widget-1\" class=\"\" title=\"X P\u0159\u00edsp\u011bvek\" src=\"https:\/\/platform.twitter.com\/embed\/Tweet.html?dnt=true&amp;embedId=twitter-widget-1&amp;features=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%3D%3D&amp;frame=false&amp;hideCard=false&amp;hideThread=false&amp;id=1895741721880756706&amp;lang=cs&amp;origin=https%3A%2F%2Freport24.news%2Feisbaeren-werden-dicker-und-das-trotz-schmelzendem-eis%2F&amp;sessionId=30bf15256064bc00dce395e4076a9813a1fcfad7&amp;theme=light&amp;widgetsVersion=2615f7e52b7e0%3A1702314776716&amp;width=550px\" frameborder=\"0\" scrolling=\"no\" allowfullscreen=\"allowfullscreen\" data-tweet-id=\"1895741721880756706\" data-mce-fragment=\"1\"><\/iframe><\/div>\n<\/div>\n<\/figure>\n<p><span dir=\"auto\">Nav\u00edc existuje je\u0161t\u011b jeden, \u010dasto p\u0159ehl\u00ed\u017een\u00fd efekt: m\u00e9n\u011b ledu nemus\u00ed nutn\u011b znamenat m\u00e9n\u011b ko\u0159isti. Pokud jsou tuleni nuceni soust\u0159edit se na men\u0161\u00ed ledov\u00e9 kry, stanou se pro ledn\u00ed medv\u011bdy snadn\u011bji dostupn\u00fdmi. M\u00edsto nekone\u010dn\u00fdch lov\u016f na obrovsk\u00e9 vzd\u00e1lenosti existuj\u00ed koncentrovan\u011bj\u0161\u00ed a efektivn\u011bj\u0161\u00ed zdroje potravy. To je tak\u00e9 v rozporu s teori\u00ed o bezmocn\u011b hladov\u011bj\u00edc\u00edm ledn\u00edm medv\u011bdovi, kter\u00fd je \u00fadajn\u011b ji\u017e na pokraji vyhynut\u00ed.<\/span><\/p>\n<p><span dir=\"auto\">Obvykl\u00ed alarmist\u00e9 se tomu p\u0159irozen\u011b okam\u017eit\u011b sna\u017e\u00ed \u010delit. Ekologick\u00e9 organizace a doprovodn\u00ed koment\u00e1to\u0159i zd\u016fraz\u0148uj\u00ed, \u017ee se jedn\u00e1 pouze o kr\u00e1tkodob\u00fd efekt. Z dlouhodob\u00e9ho hlediska je podle nich zk\u00e1za nevyhnuteln\u00e1. T\u011blesn\u00fd tuk je jen \u201ejedn\u00edm d\u00edlkem skl\u00e1da\u010dky\u201c. Pozitivn\u00ed zpr\u00e1vy se do alarmistick\u00e9ho narativu prost\u011b nehod\u00ed.<\/span><\/p>\n<p><span dir=\"auto\">\u010casto se p\u0159ehl\u00ed\u017e\u00ed kl\u00ed\u010dov\u00fd bod. Populace ledn\u00edch medv\u011bd\u016f na \u0160picberk\u00e1ch se od ukon\u010den\u00ed intenzivn\u00edho lovu v 70. letech 20. stolet\u00ed obnovuje. Des\u00edtky let ochrany, rostouc\u00ed populace ko\u0159isti a ekologick\u00e1 p\u0159izp\u016fsobivost vytv\u00e1\u0159ej\u00ed obraz, kter\u00fd je neslu\u010diteln\u00fd se zjednodu\u0161en\u00fdm narativem o \u00fadajn\u00e9m vym\u00edr\u00e1n\u00ed druh\u016f zp\u016fsoben\u00e9m CO2.<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-1185\" src=\"http:\/\/www.infokuryr.cz\/n\/wp-content\/uploads\/2021\/04\/kuryr-podpis.png\" alt=\"\" width=\"84\" height=\"24\" \/><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ledn\u00ed medv\u011bdi zjevn\u011b tlustnou, t\u011b\u017e\u0161\u00ed a zdrav\u011bj\u0161\u00ed. Nov\u00e1 dlouhodob\u00e1 studie o \u0160picberk\u00e1ch, norsk\u00e9m souostrov\u00ed, vykresluje&#8230;<\/p>\n","protected":false},"author":2,"featured_media":98388,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[2692,873,1503,4205],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/98387"}],"collection":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/comments?post=98387"}],"version-history":[{"count":0,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/98387\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/98388"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=98387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=98387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=98387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}