{"id":4978,"date":"2017-03-07T16:36:12","date_gmt":"2017-03-07T16:36:12","guid":{"rendered":"http:\/\/ivan.ingemansen.dk\/?p=4978"},"modified":"2023-10-10T10:20:27","modified_gmt":"2023-10-10T10:20:27","slug":"mysteriet-om-sandbunkerne","status":"publish","type":"post","link":"https:\/\/ivan.ingemansen.dk\/?p=4978","title":{"rendered":"Mysteriet om sandbunkerne."},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-4979\" src=\"http:\/\/ivan.ingemansen.dk\/wp-content\/uploads\/2017\/03\/DSCN2424-1024x768.jpg\" alt=\"DSCN2424\" width=\"894\" height=\"671\" srcset=\"https:\/\/ivan.ingemansen.dk\/wp-content\/uploads\/2017\/03\/DSCN2424-1024x768.jpg 1024w, https:\/\/ivan.ingemansen.dk\/wp-content\/uploads\/2017\/03\/DSCN2424-300x225.jpg 300w, https:\/\/ivan.ingemansen.dk\/wp-content\/uploads\/2017\/03\/DSCN2424-768x576.jpg 768w\" sizes=\"auto, (max-width: 894px) 100vw, 894px\" \/><\/p>\n<p>Nogle har m\u00e5ske ligesom jeg undret sig over de sandbunkerne, der kan ses p\u00e5 nogle skr\u00e5ninger langs med vejen. I denne ende af kommunen, hvor jeg bor drejer det sig om steder mellem K\u00f8ng og B\u00e5rse.<\/p>\n<p>En opringning til biolog Carsten Horup i Vordingborg Kommunes Afdeling for Land &amp; Milj\u00f8 bekr\u00e6ftede min mistanke om, at det nok drejede sig om foranstaltninger til at hj\u00e6lpe bestanden af markfirben.\u00a0Sandbunkerne, som er mellem 1 og 2 kvadratmeter, er etableret som leve- og ynglesteder for markfirbenet.<\/p>\n<p>Markfirben er omfattet af EU\u2019s habitatdirektiv bilag IV (s\u00e6rligt s\u00e5rbare og truede arter), og som f\u00f8lge heraf har Vordingborg Kommune et s\u00e6rligt ansvar for at beskytte arten ved at sikre velegnede levesteder.\u00a0Markfirben kr\u00e6ver lys\u00e5bne, soleksponerede, t\u00f8rre lokaliteter til f\u00f8des\u00f8gning og sandede omr\u00e5der til \u00e6gl\u00e6gning.\u00a0Der er gennem vinteren blevet etableret i alt 81 soleksponerede sandbunker p\u00e5 10 lokaliteter i kommunen fort\u00e6ller Carsten Horup.<\/p>\n<p>Ved en nyanlagt grusbunke ved Frederikssund har vejdirektoratet i august 2016 fundet over 50 \u00e6g.\u00a0Det bliver jo nu s\u00e5 sp\u00e6ndende at se, om bunkerne her i kommunen kan virke lige s\u00e5 godt.<\/p>\n<p>Markfirbenet findes i det meste af Danmark. Det bliver op til 23 cm langt. Det lever i det \u00e5bne land, gerne i omr\u00e5der med l\u00f8s sandet jord.\u00a0Hunnen er gr\u00e5broget medens hannen om for\u00e5ret kendes p\u00e5 sine gr\u00f8nne farve p\u00e5 kropssiderne. B\u00e5de hannen og hunnen har gr\u00e5t b\u00e5nd ned langs ryggen.\u00a0Markfirbenet lever hovedsageligt af biller, gr\u00e6shopper og larver.\u00a0Om vinteren ligger markfirbenet i dvale, men midt i april kommer hannen frem, medens hunnen f\u00f8rst kommer frem midt i maj.<\/p>\n<p>Markfirbenet l\u00e6gger \u00e6g i juni m\u00e5ned. Solen s\u00f8ger for at udruge \u00e6ggene, som kl\u00e6kkes i august. I september g\u00e5r de voksne markfirben igen i dvale, medens ungerne venter endnu en m\u00e5nedstid med at g\u00e5 i dvale.\u00a0Markfirbenet er g\u00e5et meget tilbage i de sidste 100 \u00e5r, s\u00e5 det er godt, at der bliver gjort noget for bestanden.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-4981\" src=\"http:\/\/ivan.ingemansen.dk\/wp-content\/uploads\/2017\/03\/Markfirben-800x559.jpg\" alt=\"Markfirben (800x559)\" width=\"855\" height=\"597\" srcset=\"https:\/\/ivan.ingemansen.dk\/wp-content\/uploads\/2017\/03\/Markfirben-800x559.jpg 800w, https:\/\/ivan.ingemansen.dk\/wp-content\/uploads\/2017\/03\/Markfirben-800x559-300x210.jpg 300w, https:\/\/ivan.ingemansen.dk\/wp-content\/uploads\/2017\/03\/Markfirben-800x559-768x537.jpg 768w\" sizes=\"auto, (max-width: 855px) 100vw, 855px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nogle har m\u00e5ske ligesom jeg undret sig over de sandbunkerne, der kan ses p\u00e5 nogle skr\u00e5ninger langs med vejen. I denne ende af kommunen, hvor jeg bor drejer det sig om steder mellem K\u00f8ng og B\u00e5rse. En opringning til biolog Carsten Horup i Vordingborg Kommunes Afdeling for Land &amp; Milj\u00f8 bekr\u00e6ftede min mistanke om, at det nok drejede sig om foranstaltninger til at hj\u00e6lpe bestanden af markfirben.\u00a0Sandbunkerne, som er mellem 1 og 2 kvadratmeter, er etableret som leve- og ynglesteder for markfirbenet. Markfirben er omfattet af EU\u2019s habitatdirektiv bilag IV (s\u00e6rligt s\u00e5rbare og truede arter), og som f\u00f8lge heraf har Vordingborg Kommune et s\u00e6rligt ansvar for at beskytte arten ved at sikre velegnede levesteder.\u00a0Markfirben kr\u00e6ver lys\u00e5bne, soleksponerede, t\u00f8rre lokaliteter til f\u00f8des\u00f8gning og sandede omr\u00e5der til \u00e6gl\u00e6gning.\u00a0Der er gennem vinteren blevet etableret i alt 81 soleksponerede sandbunker p\u00e5 10 lokaliteter i kommunen fort\u00e6ller Carsten Horup. Ved en nyanlagt grusbunke ved Frederikssund har vejdirektoratet i august 2016 fundet over 50 \u00e6g.\u00a0Det bliver jo nu s\u00e5 sp\u00e6ndende at se, om bunkerne her i kommunen kan virke lige s\u00e5 godt. Markfirbenet findes i det meste af Danmark. Det bliver op til 23 cm langt. Det lever i det \u00e5bne land, gerne i omr\u00e5der med l\u00f8s sandet jord.\u00a0Hunnen er gr\u00e5broget medens hannen om for\u00e5ret kendes p\u00e5 sine gr\u00f8nne farve p\u00e5 kropssiderne. B\u00e5de hannen og hunnen har gr\u00e5t b\u00e5nd ned langs ryggen.\u00a0Markfirbenet lever hovedsageligt af biller, gr\u00e6shopper og larver.\u00a0Om vinteren ligger markfirbenet i dvale, men midt i april kommer hannen frem, medens hunnen f\u00f8rst kommer frem midt i maj. Markfirbenet l\u00e6gger \u00e6g i juni m\u00e5ned. Solen s\u00f8ger for at udruge \u00e6ggene, som kl\u00e6kkes i august. I september g\u00e5r de voksne markfirben igen i dvale, medens ungerne venter endnu en m\u00e5nedstid med at g\u00e5 i dvale.\u00a0Markfirbenet er g\u00e5et meget tilbage i de sidste 100 \u00e5r, s\u00e5 det er godt, at der bliver gjort noget for bestanden.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[3],"tags":[585,1104],"class_list":["post-4978","post","type-post","status-publish","format-standard","hentry","category-natur","tag-markfirben","tag-vordingborg-kommune"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Nogle har m\u00e5ske ligesom jeg undret sig over de sandbunkerne, der kan ses p\u00e5 nogle skr\u00e5ninger langs med vejen. 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En opringning til biolog Carsten Horup i Vordingborg Kommunes Afdeling for Land &amp; Milj\u00f8 bekr\u00e6ftede min mistanke om, at","twitter:image":"https:\/\/ivan.ingemansen.dk\/wp-content\/uploads\/2009\/04\/TV2-3.jpg"},"aioseo_meta_data":{"post_id":"4978","title":null,"description":null,"keywords":[],"keyphrases":{"focus":{"keyphrase":"","score":0,"analysis":{"keyphraseInTitle":{"score":0,"maxScore":9,"error":1}}},"additional":[]},"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":"","og_custom_url":null,"og_article_section":null,"og_article_tags":[],"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"Article","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":"-1","robots_max_videopreview":"-1","robots_max_imagepreview":"large","priority":null,"frequency":"default","local_seo":null,"breadcrumb_settings":null,"limit_modified_date":false,"ai":null,"created":"2023-07-05 08:04:14","updated":"2025-06-06 22:14:30","seo_analyzer_scan_date":null,"focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/ivan.ingemansen.dk\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/ivan.ingemansen.dk\/?cat=3\" title=\"Natur\">Natur<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tMysteriet om sandbunkerne.\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/ivan.ingemansen.dk"},{"label":"Natur","link":"https:\/\/ivan.ingemansen.dk\/?cat=3"},{"label":"Mysteriet om sandbunkerne.","link":"https:\/\/ivan.ingemansen.dk\/?p=4978"}],"_links":{"self":[{"href":"https:\/\/ivan.ingemansen.dk\/index.php?rest_route=\/wp\/v2\/posts\/4978","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ivan.ingemansen.dk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ivan.ingemansen.dk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ivan.ingemansen.dk\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ivan.ingemansen.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4978"}],"version-history":[{"count":11,"href":"https:\/\/ivan.ingemansen.dk\/index.php?rest_route=\/wp\/v2\/posts\/4978\/revisions"}],"predecessor-version":[{"id":6017,"href":"https:\/\/ivan.ingemansen.dk\/index.php?rest_route=\/wp\/v2\/posts\/4978\/revisions\/6017"}],"wp:attachment":[{"href":"https:\/\/ivan.ingemansen.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4978"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ivan.ingemansen.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4978"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ivan.ingemansen.dk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}