{"id":8809,"date":"2020-05-01T08:20:39","date_gmt":"2020-05-01T08:20:39","guid":{"rendered":"https:\/\/app.forkranger.com\/?page_id=8809"},"modified":"2020-05-01T08:20:39","modified_gmt":"2020-05-01T08:20:39","slug":"eagle-2","status":"publish","type":"page","link":"https:\/\/fr-wp.cowdev.com\/de\/eagle-2\/","title":{"rendered":"Eagle 2"},"content":{"rendered":"\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/app.forkranger.com\/wp-content\/uploads\/2020\/05\/progress-bar-2.png\" alt=\"progress bar 2\" itemprop=\"image\" height=\"10\" width=\"154\" title=\"progress bar 2\" onerror=\"this.style.display='none'\"  \/>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/app.forkranger.com\/wp-content\/uploads\/2020\/05\/progress-bar-1.png\" alt=\"progress bar 1\" itemprop=\"image\" height=\"10\" width=\"154\" title=\"progress bar 1\" onerror=\"this.style.display='none'\"  \/>\n\tThis creates a food chain with four levels:\n\t<p>[h5p id=&#8221;10&#8243;]<\/p>\n<p><em>Use the slider<\/em>: The plants <strong>produce<\/strong> energy and support animal <strong>consumers<\/strong>. After each step, only 10% of the energy is left.<\/p>\n\t<p>Source: <a href=\"https:\/\/www.khanacademy.org\/science\/biology\/ecology\/intro-to-ecosystems\/a\/food-chains-food-webs\">Khan Academy<\/a><\/p>\n\t<p>To support enough prey for an eagle, the ecosystem needs half a million calories.<\/p>\n\t<p>That means every pair of golden eagles needs a huge territory.<\/p>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/app.forkranger.com\/wp-content\/uploads\/2020\/06\/80-km2.jpg\" alt=\"80-km2\" itemprop=\"image\" height=\"1230\" width=\"1500\" title=\"80-km2\" onerror=\"this.style.display='none'\"  \/>\n\t<p>So that&#8217;s the reason I&#8217;ve never seen one: there simply isn&#8217;t enough food in the ecosystem to support a lot of eagles.<\/p>\n\t<p><strong>Now let&#8217;s do a thought experiment.<\/strong><\/p>\n\tImagine you can only eat eagle meat. 80 km2 would only provide 50 calories!\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/app.forkranger.com\/wp-content\/uploads\/2020\/06\/food-web-2-humans-1.jpg\" alt=\"food web 2 humans\" itemprop=\"image\" height=\"1658\" width=\"1000\" title=\"food web 2 humans\" onerror=\"this.style.display='none'\"  \/>\n\t<p>You would have to travel all over the world to get enough calories.<\/p>\n\tClearly, eating eagles is not a good survival strategy.\n\tWe can compare a typical human diet to one of these animals. Which animal eats like us?\n\t<strong>Hint<\/strong>: Look at the arrows. The answer would be different for a <em>vegan\u00a0<\/em>diet.\n\t[h5p id=&#8221;34&#8243;]\n\tThe rock partridge is one of the few birds who stays in the mountains during winter.\n\t<p>In the harsh conditions with little food, it has adjusted to survive with little protein.<\/p>\n\tUs clever humans used a different trick to deal with food shortages.\n\t\t\t<a href=\"\/eagle\" target=\"_self\" role=\"button\" rel=\"noopener noreferrer\">\n\t\t\t\t\t\tPrevious\n\t\t\t\t\t<\/a>\n\t\t\t<a href=\"\/eagle-3\" target=\"_self\" role=\"button\" rel=\"noopener noreferrer\">\n\t\t\t\t\t\t\tNext\n\t\t\t<\/a>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-8809","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Eagle 2 - 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