{"id":3395,"date":"2026-09-24T09:26:40","date_gmt":"2026-09-24T07:26:40","guid":{"rendered":"https:\/\/florae.ch\/?p=3395"},"modified":"2026-09-24T15:47:10","modified_gmt":"2026-09-24T13:47:10","slug":"seit-1900-neue-arten-verschwundene-lebensraeume","status":"publish","type":"post","link":"https:\/\/florae.ch\/rm\/seit-1900-neue-arten-verschwundene-lebensraeume\/","title":{"rendered":"Seit 1900: Neue Arten, verschwundene Lebensr\u00e4ume"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Sieht man unser\u00ader Flo\u00adra in Graub\u00fcn\u00adden den gesellschaftlichen Wan\u00addel oder die Kli\u00admaer\u00adw\u00e4r\u00admung seit 1900 an? Flo\u00adra Raet\u00adi\u00adca geht dieser Frage mit ein\u00ader umfassenden Kartierung nach und ver\u00adgle\u00adicht his\u00adtorische Fund\u00admel\u00addun\u00adgen mit heuti\u00adgen Vorkom\u00admen. Antworten auf diese Fra\u00adgen gab Thomas Wohlge\u00admuth, Co-Pr\u00e4si\u00addent von Flo\u00adra Raet\u00adi\u00adca, am 16. Sep\u00adtem\u00adber beim \u00abRen\u00addez-vous am Mit\u00adtag\u00bb vom B\u00fcnd\u00adner Natur\u00admu\u00adse\u00adum. Rund 60 Inter\u00adessierte fol\u00adgten seinem Vor\u00adtrag.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Weniger \u00c4ck\u00ader, mehr Sied\u00adlungs\u00adfl\u00e4che und Wald<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Anhand his\u00adtorisch\u00ader Fotos ver\u00adan\u00adschaulichte Wohlge\u00admuth ein\u00addr\u00fcck\u00adlich, wie klein\u00adr\u00e4u\u00admig und mit wie viel Han\u00addar\u00adbeit unsere Vor\u00adfahren \u00fcber\u00adall in Graub\u00fcn\u00adden Land\u00adwirtschaft betrieben.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">W\u00e4hrend der let\u00adzten hun\u00addert Jahre sind die \u00c4ck\u00ader rund um die D\u00f6r\u00adfer gr\u00f6ssten\u00adteils ver\u00adschwun\u00adden \u2013 und damit auch tra\u00addi\u00adtionelle Kul\u00adturen wie Flachs, Hanf und Roggen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In den Tal\u00adla\u00adgen sind vielerorts Feuchtwiesen und nat\u00fcr\u00adliche Flus\u00adsland\u00adschaften ver\u00adschwun\u00adden, und vor\u00admals magere Wiesen wer\u00adden heute bis in hohe Lagen ged\u00fcngt. Zugenom\u00admen haben Sied\u00adlungs\u00adfl\u00e4chen, Strassen, Bewirtschaf\u00adtungsstrassen, aber auch mit Wald bedeck\u00adte Gebi\u00adete.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u00dcber f\u00fcn\u00adfzig neue Arten in W\u00e4ldern<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Der Wan\u00addel der Leben\u00adsr\u00e4ume spiegelt sich auch in der Pflanzen\u00adwelt wider. So tauchen bei der aktuellen Kartierung beson\u00adders ent\u00adlang von Verkehrsrouten, Fl\u00fcssen und anderen Rud\u00ader\u00adal\u00adstan\u00addorten neue Arten auf \u2013 darunter viele Neo\u00adphyten. Einige bre\u00adit\u00aden sich rasch aus und wer\u00adden deshalb gezielt bek\u00e4mpft, etwa das Dr\u00fcsige Springkraut und der Japanis\u00adche Stau\u00addenkn\u00f6\u00adterich.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bei den Fet\u00adtwiese\u00adnarten, die heute viel h\u00e4u\u00adfiger sind als fr\u00fcher, sind nur eine Hand\u00advoll Arten neu dazugekom\u00admen, so der Faden-Ehren\u00adpreis. In den W\u00e4ldern wach\u00adsen heute \u00fcber neue 50 Arten, darunter mehrere Bau\u00admarten wie Dou\u00adglasie und Rote\u00adiche, die gezielt gepflanzt wur\u00adden, aber auch schat\u00adten\u00adtol\u00ader\u00adante Neo\u00adphyten wie die Herb\u00adst-Traubenkirsche.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gle\u00adichzeit\u00adig sind viele Arten der fr\u00fcheren Ack\u00aderkul\u00adturen ver\u00adschwun\u00adden oder sel\u00adtener gewor\u00adden, darunter etwa die Korn\u00adrade und mehrere in Flachs\u00adfeldern wach\u00adsende Arten: Flachs-Lolch, Flachs-Sei\u00adde und Lein-Dot\u00adter.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Erstaunlicher\u00adweise sind von den zahlre\u00adichen, bere\u00adits um 1900 bekan\u00adnten Neo\u00adphyten mehrere Dutzend ver\u00adschollen. Sie kon\u00adnten sich offen\u00adsichtlich nicht etablieren.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Hei\u00addel\u00adbeere beson\u00adders weit ver\u00adbre\u00adit\u00adet<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Die Kartierung zeigt auch grosse Unter\u00adschiede in der Ver\u00adbre\u00aditung der rund 3000 Pflanzenarten. Gem\u00e4ss Wohlge\u00admuth wur\u00adden rund 400 Arten bish\u00ader nur in einem einzi\u00adgen 5 \u00d7 5\u2011km-Quadrat nachgewiesen und z\u00e4hlen somit zu den beson\u00adders sel\u00adten erfassten Arten, zum Beispiel der Mooren\u00adz\u00adian am Hei\u00add\u00adsee oder der F\u00e4r\u00adber-Wald\u00admeis\u00adter am Ell\u00adhorn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Am anderen Ende der Skala ste\u00adhen die Hei\u00addel\u00adbeere und die Kamm-Schmiele: Sie wur\u00adden bish\u00ader bei\u00adde in 84 Prozent der bear\u00adbeit\u00adeten Fl\u00e4chen gefun\u00adden und sind die am weitesten ver\u00adbre\u00adit\u00adeten Arten.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kartierung l\u00e4uft bis 2028<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Je voll\u00adst\u00e4ndi\u00adger die heuti\u00adgen Vorkom\u00admen doku\u00admen\u00adtiert sind, desto genauer l\u00e4sst sich nachvol\u00adlziehen, wie sich die Flo\u00adra Graub\u00fcn\u00addens ver\u00e4n\u00addert. Flo\u00adra Raet\u00adi\u00adca f\u00fchrt die Kartierung deshalb noch bis 2028 weit\u00ader. Neue Mitar\u00adbei\u00adt\u00adende sind jed\u00aderzeit her\u00adzlich willkom\u00admen!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Wie hat sich die Pflanzen\u00adwelt Graub\u00fcn\u00addens seit 1900 ver\u00e4n\u00addert? Am \u00abRen\u00addez-vous am Mit\u00adtag\u00bb zeigte Thomas Wohlge\u00admuth vor rund 60 Inter\u00adessierten, welche Erken\u00adnt\u00adnisse das Pro\u00adjekt \u00abFlo\u00adra Raet\u00adi\u00adca\u00bb bish\u00ader liefert.<\/p>\n","protected":false},"author":28,"featured_media":3396,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"wp_typography_post_enhancements_disabled":false,"footnotes":""},"categories":[33,12],"tags":[110,74,111],"class_list":["post-3395","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-beitrag","category-uncategorized-rm","tag-biodiversitaet","tag-flora-raetica","tag-florenwandel"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Seit 1900: Neue Arten, verschwundene Lebensr\u00e4ume - Flora Raetica<\/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:\/\/florae.ch\/rm\/seit-1900-neue-arten-verschwundene-lebensraeume\/\" \/>\n<meta property=\"og:locale\" content=\"rm_CH\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Seit 1900: Neue Arten, verschwundene Lebensr\u00e4ume - Flora Raetica\" \/>\n<meta property=\"og:description\" content=\"Wie hat sich die Pflanzenwelt Graub\u00fcndens seit 1900 ver\u00e4ndert? 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