{"id":10346,"date":"2021-01-13T10:49:47","date_gmt":"2021-01-13T10:49:47","guid":{"rendered":"https:\/\/ingemar.alenas.se\/?p=10346"},"modified":"2021-01-13T10:53:42","modified_gmt":"2021-01-13T10:53:42","slug":"vad-ar-vatteskagg","status":"publish","type":"post","link":"https:\/\/ingemar.alenas.se\/?p=10346","title":{"rendered":"Vad \u00e4r v\u00e4ttesk\u00e4gg?"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">2021-01-13 V\u00e4ttesk\u00e4gg eller h\u00e5ris \u00e4r enligt GP ett ganska s\u00e4llsynt naturfenomen som i g\u00e5r kunde sk\u00e5das vid Delsj\u00f6n i G\u00f6teborg. L\u00e4s mer <a href=\"https:\/\/www.gp.se\/nyheter\/g%C3%B6teborg\/ovanliga-naturfenomenet-h%C3%A5ris-d%C3%B6k-upp-i-g%C3%B6teborg-1.39799434\">h\u00e4r.<\/a><\/h2>\n\n\n\n<p>SMHI uppger att de f\u00e5r in ca en observation om \u00e5ret av h\u00e5ris.  <br>Didrik Vanhoenacker, jourhavande biolog p\u00e5 Naturhistoriska Muse\u00e9t, f\u00f6rklarar fenomenet: &#8221;Det \u00e4r is, och fenomenet kallas h\u00e5ris. Man hittar detta p\u00e5 murkna grenar. Vid fuktigt v\u00e4der och n\u00e5gra f\u00e5 minusgrader tr\u00e4nger vatten ut ur porer i veden och fryser till tunna h\u00e5r.<\/p>\n\n\n\n<p>&#8221;Att vattnet inte fryser inne i veden beror p\u00e5 att fryspunkten s\u00e4nks en aning i tr\u00e5nga porer. Man f\u00e5r underkylt vatten. Att ish\u00e5ren beh\u00e5ller sitt fintr\u00e5diga utseende (och inte bara blir isskorpa p\u00e5 pinnen) beror p\u00e5 svamptr\u00e5dar i pinnen. Antagligen producerar svampen n\u00e5got \u00e4mne som motverkar omkristallisering. En svamp som alltid verkar finnas i h\u00e5rispinnar \u00e4r Exidiopsis effusa, ett slags skinnsvamp&#8221;.<\/p>\n\n\n\n<p>Fenomenet \u00e4r dock inte s\u00e5 ovanligt som man kan tro. F\u00f6rutom r\u00e4tt f\u00f6ruts\u00e4ttningar f\u00f6r v\u00e4dret skall det finnas grenar av multnande l\u00f6vtr\u00e4d d\u00e4r skinnsvampen finns. L\u00f6vskogen utefter &#8221;Pyttebanan&#8221; i Vessigebro \u00e4r just en s\u00e5dan naturskog d\u00e4r den uppm\u00e4rksamme vandraren kan se fenomenet h\u00e5ris. En promenad i v\u00e5ra l\u00f6vskogar ger f\u00f6rutom motion m\u00e5nga ov\u00e4ntade upplevelser.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1400\" height=\"1013\" src=\"https:\/\/ingemar.alenas.se\/wp-content\/uploads\/2021\/01\/P4130576.jpg\" alt=\"\" class=\"wp-image-10350\" srcset=\"https:\/\/ingemar.alenas.se\/wp-content\/uploads\/2021\/01\/P4130576.jpg 1400w, https:\/\/ingemar.alenas.se\/wp-content\/uploads\/2021\/01\/P4130576-300x217.jpg 300w, https:\/\/ingemar.alenas.se\/wp-content\/uploads\/2021\/01\/P4130576-1024x741.jpg 1024w, https:\/\/ingemar.alenas.se\/wp-content\/uploads\/2021\/01\/P4130576-768x556.jpg 768w\" sizes=\"auto, (max-width: 1400px) 100vw, 1400px\" \/><\/figure>\n\n\n\n<p>En annan mer fantasieggande beteckning p\u00e5 fenomenet \u00e4r \u201dv\u00e4ttesk\u00e4gg\u201d, vilket kommer fr\u00e5n f\u00f6rr i tiden d\u00e5 man skrockfullt trodde att det var v\u00e4ttarna som fastnat med sk\u00e4gget n\u00e4r de hoppade ner i sina tr\u00e4h\u00e5lor. Kanske \u00e4r det s\u00e5 att vi har ovanligt m\u00e5nga v\u00e4ttar i l\u00f6vskogarna runt Vessigebro?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>2021-01-13 V\u00e4ttesk\u00e4gg eller h\u00e5ris \u00e4r enligt GP ett ganska s\u00e4llsynt naturfenomen som i g\u00e5r kunde sk\u00e5das vid Delsj\u00f6n i G\u00f6teborg. L\u00e4s mer h\u00e4r. SMHI uppger att de f\u00e5r in ca en observation om \u00e5ret av h\u00e5ris. Didrik Vanhoenacker, jourhavande biolog p\u00e5 Naturhistoriska Muse\u00e9t, f\u00f6rklarar fenomenet: &#8221;Det \u00e4r is, och fenomenet kallas h\u00e5ris. Man hittar detta &hellip; <a href=\"https:\/\/ingemar.alenas.se\/?p=10346\" class=\"more-link\">Forts\u00e4tt l\u00e4sa <span class=\"screen-reader-text\">Vad \u00e4r v\u00e4ttesk\u00e4gg?<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":10349,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-10346","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-naturnytt"],"_links":{"self":[{"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=\/wp\/v2\/posts\/10346","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10346"}],"version-history":[{"count":5,"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=\/wp\/v2\/posts\/10346\/revisions"}],"predecessor-version":[{"id":10353,"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=\/wp\/v2\/posts\/10346\/revisions\/10353"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=\/wp\/v2\/media\/10349"}],"wp:attachment":[{"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10346"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10346"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}