{"id":1077,"date":"2024-08-21T09:57:13","date_gmt":"2024-08-21T07:57:13","guid":{"rendered":"https:\/\/lehrpfad.umwelt-campus.de\/old-and-biotope-trees\/"},"modified":"2025-09-10T08:27:41","modified_gmt":"2025-09-10T06:27:41","slug":"old-and-biotope-trees","status":"publish","type":"page","link":"https:\/\/lehrpfad.umwelt-campus.de\/en\/old-and-biotope-trees\/","title":{"rendered":"Old and biotope trees"},"content":{"rendered":"\n<div class=\"wp-block-uagb-container uagb-block-ddf63a6a alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<div class=\"wp-block-uagb-container uagb-block-d71b3bf5\">\n<h2 class=\"wp-block-heading\">Hotspots of rare biodiversity<\/h2>\n\n\n\n<figure class=\"wp-block-audio\"><audio controls src=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/09\/227_1_eng.mp3\"><\/audio><\/figure>\n\n\n\n<p>Biotope trees are mostly very old, sometimes already dying or dead trees with a great structural diversity. They thus offer very special habitats for unique creatures. The characteristic features of these trees are, for example, trunk injuries, cracks, excrescences, crown fractures, bark pockets, cavities and eyries. Some are slanting or crooked.<\/p>\n\n\n\n<p>These trees have no longer a commercial value and are allowed to die a natural death. In their decaying phase, they become particularly interesting for biodiversity. A great many and mostly very rare species groups are involved. For decades, even centuries, these trees enable continuous colonisation, which is of enormous importance for immobile life forms such as fungi, lichens or mosses.<\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:33% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/227_1.webp\" alt=\"\" class=\"wp-image-826 size-full\" srcset=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/227_1.webp 400w, https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/227_1-300x300.webp 300w, https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/227_1-150x150.webp 150w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<figure class=\"wp-block-audio\"><audio controls src=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/09\/227_2_eng.mp3\"><\/audio><\/figure>\n\n\n\n<p><strong>Standing and lying deadwood<\/strong><br>Old trees become first standing deadwood, then lying deadwood, and finally valuable forest soil is formed. Dead trees are therefore a valuable seedbed for forest regeneration, storing water, nutrients and carbon. Lying deadwood is cool, moist and therefore balances the microclimate.<\/p>\n\n\n\n<p><strong>Slanting trees<\/strong><br>Crooked and slanting trees are important habitats for lichens and mosses. On the waterfacing upper side, mosses find ideal conditions, while the dry underside of the trees is attractive for lichens.<\/p>\n\n\n\n<p><strong>Strong vegetation with climbing plants<\/strong><br>Trees heavily overgrown with ivy or other climbing plants are of great importance as a food source and nesting site for birds and insects, which is why they are also considered biotope trees worthy of protection.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:33% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/227_2.webp\" alt=\"\" class=\"wp-image-828 size-full\" srcset=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/227_2.webp 400w, https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/227_2-300x300.webp 300w, https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/227_2-150x150.webp 150w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<figure class=\"wp-block-audio\"><audio controls src=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/09\/227_3_eng.mp3\"><\/audio><\/figure>\n\n\n\n<p><strong>European pygmy owl in tree hollow<\/strong><br>Cavity dwellers such as woodpeckers, stock doves, tawny owls and European pygmy owls depend on cavity trees. For birds, they are of great importance as a source of food. Nowhere is insect diversity greater than in these structurally rich habitats.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:33% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/227_3.webp\" alt=\"\" class=\"wp-image-830 size-full\" srcset=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/227_3.webp 400w, https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/227_3-300x300.webp 300w, https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/227_3-150x150.webp 150w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<figure class=\"wp-block-audio\"><audio controls src=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/09\/227_4_eng.mp3\"><\/audio><\/figure>\n\n\n\n<p><strong>Great capricorn beetle<\/strong><br>The great capricorn beetle is one of the largest beetles in Europe and is considered a \u201eprimeval forest relict\u201c. It depends on old, thick-trunked oaks to live. This insect and its larvae feed on the nutrient-rich sap flow of injured old trees. The beetle species is stationary. Often, several generations live on the same tree.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:33% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/227_4.webp\" alt=\"\" class=\"wp-image-832 size-full\" srcset=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/227_4.webp 400w, https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/227_4-300x300.webp 300w, https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/227_4-150x150.webp 150w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<figure class=\"wp-block-audio\"><audio controls src=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/09\/227_5_eng.mp3\"><\/audio><\/figure>\n\n\n\n<p><strong>Hornet<\/strong><br>Tree hollows in old trees are essential for the survival of hornets, as they can build their nests here largely undisturbed. They are an endangered species and are considered a protected species.<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-uagb-container uagb-block-e9c5f59b\">\n<div class=\"wp-block-uagb-info-box uagb-block-a99f778a uagb-infobox__content-wrap  uagb-infobox-icon-above-title uagb-infobox-image-valign-top hinweisbox\"><div class=\"uagb-ifb-content\"><div class=\"uagb-ifb-icon-wrap\"><div class=\"uagb-iconbox-icon-wrap uagb-infobox-shape-circle\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 384 512\"><path d=\"M112.1 454.3c0 6.297 1.816 12.44 5.284 17.69l17.14 25.69c5.25 7.875 17.17 14.28 26.64 14.28h61.67c9.438 0 21.36-6.401 26.61-14.28l17.08-25.68c2.938-4.438 5.348-12.37 5.348-17.7L272 415.1h-160L112.1 454.3zM191.4 .0132C89.44 .3257 16 82.97 16 175.1c0 44.38 16.44 84.84 43.56 115.8c16.53 18.84 42.34 58.23 52.22 91.45c.0313 .25 .0938 .5166 .125 .7823h160.2c.0313-.2656 .0938-.5166 .125-.7823c9.875-33.22 35.69-72.61 52.22-91.45C351.6 260.8 368 220.4 368 175.1C368 78.61 288.9-.2837 191.4 .0132zM192 96.01c-44.13 0-80 35.89-80 79.1C112 184.8 104.8 192 96 192S80 184.8 80 176c0-61.76 50.25-111.1 112-111.1c8.844 0 16 7.159 16 16S200.8 96.01 192 96.01z\"><\/path><\/svg><\/div><\/div><div class=\"uagb-ifb-title-wrap\"><h3 class=\"uagb-ifb-title\">Tips and measures<\/h3><\/div><div class=\"uagb-ifb-separator\"><\/div><p class=\"uagb-ifb-desc\">Preserve dead trees in the garden and leave them to decay naturally.<br><br>The seemingly unattractive, untended tree specimens with lots of deadwood are particularly important for biodiversity.<\/p><\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">Old and biotope trees<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>as a rare habitat, provide a livelihood for thousands of often endangered, highly specialised animals, plants, fungi, mosses and lichens.<\/li>\n\n\n\n<li>foster a valuable microclimate, are a source of food and off er shelter.<\/li>\n\n\n\n<li>require special protection to maintain biodiversity in harmony with safety and forestry needs.<\/li>\n<\/ul>\n<\/div>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Your location:<\/h2>\n\n\n    <div id=\"map_69e926ff6fff5\" style=\"height: 400px; margin: 20px 0;\"><\/div>\n    <script>\n    document.addEventListener('DOMContentLoaded', function () {\n        var map = L.map('map_69e926ff6fff5').setView([49.63711262473058, 7.161738855990765], 15);\n\n        \/\/ OSM Layer\n        L.tileLayer('https:\/\/{s}.tile.openstreetmap.org\/{z}\/{x}\/{y}.png', {\n            attribution: '&copy; OpenStreetMap contributors'\n        }).addTo(map);\n\n        \/\/ Icon f\u00fcr aktuelles Schild (blau, normal)\n        var currentIcon = L.icon({\n            iconUrl: 'https:\/\/unpkg.com\/leaflet@1.9.4\/dist\/images\/marker-icon.png',\n            shadowUrl: 'https:\/\/unpkg.com\/leaflet@1.9.4\/dist\/images\/marker-shadow.png',\n            iconSize: [25, 41],\n            iconAnchor: [12, 41],\n            popupAnchor: [1, -34],\n            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