{"id":2812,"date":"2008-10-21T20:16:31","date_gmt":"2008-10-21T18:16:31","guid":{"rendered":"http:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/?p=2812"},"modified":"2011-04-21T00:23:09","modified_gmt":"2011-04-20T22:23:09","slug":"la-grande-migration-des-gnous","status":"publish","type":"post","link":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/2008\/10\/21\/la-grande-migration-des-gnous\/","title":{"rendered":"La grande migration des gnous"},"content":{"rendered":"<table class=\"right35_box\">\n<tbody>\n<tr>\n<td>\n<p>On peut se demander ce que deviendra cette migration dans les ann\u00e9es \u00e0 venir. Les gnous et les z\u00e8bres d\u00e9pendent en effet, \u00e0 la fois de l&rsquo;acc\u00e8s \u00e0 des territoires gigantesques qui leur sont de plus en plus disput\u00e9s par l&rsquo;homme et de la stabilit\u00e9 environnementale qui pourrait \u00eatre bouscul\u00e9e par le r\u00e9chauffement plan\u00e9taire.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>La <strong>grande migration<\/strong> : c&rsquo;est le nom de cet immense transport annuel d&rsquo;animaux entre le Kenya et la Tanzanie. Entre 1,5 et 2 millions de gnous, plusieurs centaines de milliers de z\u00e8bres et quelques antilopes suivent un d\u00e9placement autour d&rsquo;un large triangle g\u00e9ographique pour retrouver les terres aux meilleures herbes en fonction des pluies et des temp\u00e9ratures.<\/p>\n<p>Comme ils doivent traverser des rivi\u00e8res, la t\u00e2che est ardue. Pire encore : les pr\u00e9dateurs, pr\u00e9venus des endroits o\u00f9 cela se passera, les attendent toutes dents dehors. D\u00e8s lors, la strat\u00e9gie des gnous est simple : saturer compl\u00e8tement l&rsquo;adversaire. Si un lion attrape 1 gnou parmi 10.000, cela vaut mieux qu&rsquo;un parmi 10. Alors, ils se regroupent en troupeaux gigantesques avant de se pr\u00e9cipiter \u00e0 l&rsquo;eau tout ensemble.<\/p>\n<p><center><\/p>\n<table border=\"0\">\n<tbody>\n<tr>\n<td>\n<p><figure id=\"attachment_2566\" aria-describedby=\"caption-attachment-2566\" style=\"width: 200px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/2008\/10\/_dsc1688w_migration_des_gnous.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-2566\" title=\"_dsc1688w_migration_des_gnous\" src=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/2008\/10\/_dsc1688w_migration_des_gnous-200x300.jpg\" alt=\"La grande migration des gnous. Ils marchent en longues files (Copyright 2008 Yves Roumazeilles)\" width=\"200\" height=\"300\" \/><\/a><figcaption id=\"caption-attachment-2566\" class=\"wp-caption-text\">La grande migration des gnous. Ils marchent en longues files (Copyright 2008 Yves Roumazeilles)<\/figcaption><\/figure><\/td>\n<td>\n<p><figure id=\"attachment_2567\" aria-describedby=\"caption-attachment-2567\" style=\"width: 199px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/2008\/10\/pict7124w-gnous.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-2567\" title=\"pict7124w-gnous\" src=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/2008\/10\/pict7124w-gnous-199x300.jpg\" alt=\"La grande migration des gnous (Copyright 2008 Yves Roumazeilles)\" width=\"199\" height=\"300\" \/><\/a><figcaption id=\"caption-attachment-2567\" class=\"wp-caption-text\">La grande migration des gnous (Copyright 2008 Yves Roumazeilles)<\/figcaption><\/figure><\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">\n<p><figure id=\"attachment_2568\" aria-describedby=\"caption-attachment-2568\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/2008\/10\/_dsc0364w_gnous.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-2568\" title=\"_dsc0364w_gnous\" src=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/2008\/10\/_dsc0364w_gnous-300x200.jpg\" alt=\"La grande migration des gnous (Copyright 2008 Yves Roumazeilles)\" width=\"300\" height=\"200\" \/><\/a><figcaption id=\"caption-attachment-2568\" class=\"wp-caption-text\">La grande migration des gnous (Copyright 2008 Yves Roumazeilles)<\/figcaption><\/figure><\/td>\n<\/tr>\n<tr>\n<td>\n<p><figure id=\"attachment_2569\" aria-describedby=\"caption-attachment-2569\" style=\"width: 199px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/2008\/10\/pict7174w_gnu_crossing.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-2569\" title=\"pict7174w_gnu_crossing\" src=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/2008\/10\/pict7174w_gnu_crossing-199x300.jpg\" alt=\"Travers\u00e9e (crossing) des gnous (Copyright 2008 Yves Roumazeilles)\" width=\"199\" height=\"300\" \/><\/a><figcaption id=\"caption-attachment-2569\" class=\"wp-caption-text\">Travers\u00e9e (crossing) des gnous (Copyright 2008 Yves Roumazeilles)<\/figcaption><\/figure><\/td>\n<td>\n<p><figure id=\"attachment_2570\" aria-describedby=\"caption-attachment-2570\" style=\"width: 225px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/2008\/10\/_dsc1071w_gnu_crossing.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-2570\" title=\"_dsc1071w_gnu_crossing\" src=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/2008\/10\/_dsc1071w_gnu_crossing-225x300.jpg\" alt=\"Travers\u00e9e (crossing) des gnous (Copyright 2008 Yves Roumazeilles)\" width=\"225\" height=\"300\" \/><\/a><figcaption id=\"caption-attachment-2570\" class=\"wp-caption-text\">Travers\u00e9e (crossing) des gnous (Copyright 2008 Yves Roumazeilles)<\/figcaption><\/figure><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><\/center><\/p>\n<p>Les pr\u00e9dateurs (lions, hy\u00e8nes, crocodiles) attendent. Et ils vont pr\u00e9lever sur le troupeau un lourd p\u00e9age en vies.<\/p>\n<p>Comme c&rsquo;est assez violent (la nature n&rsquo;est pas tendre avec les plus faibles), les images qui suivent sont quelque peu s\u00e9par\u00e9es. Les esprits jeunes ou sensibles passeront volontiers les images d&rsquo;un z\u00e8bre de Burchell attaqu\u00e9 en quelques secondes par un crocodile du Nil dans la Mara.<br \/>\n<!--more--><br \/>\n<center><\/p>\n<table border=\"0\">\n<tbody>\n<tr>\n<td>\n<p><figure id=\"attachment_2571\" aria-describedby=\"caption-attachment-2571\" style=\"width: 199px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/2008\/10\/pict7189w_zebra_vs_crocodile.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-2571\" title=\"pict7189w_zebra_vs_crocodile\" src=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/2008\/10\/pict7189w_zebra_vs_crocodile-199x300.jpg\" alt=\"Z\u00e8bre contre Crocodile - Rapide approche directe (Copyright 2008 Yves Roumazeilles)\" width=\"199\" height=\"300\" \/><\/a><figcaption id=\"caption-attachment-2571\" class=\"wp-caption-text\">Z\u00e8bre contre Crocodile - Rapide approche directe (Copyright 2008 Yves Roumazeilles)<\/figcaption><\/figure><\/td>\n<\/tr>\n<tr>\n<td>\n<p><figure id=\"attachment_2572\" aria-describedby=\"caption-attachment-2572\" style=\"width: 199px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/2008\/10\/pict7191w_zebra_vs_crocodile.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-2572\" title=\"pict7191w_zebra_vs_crocodile\" src=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/2008\/10\/pict7191w_zebra_vs_crocodile-199x300.jpg\" alt=\"Z\u00e8bre contre Crocodile - Prise (Copyright 2008 Yves Roumazeilles)\" width=\"199\" height=\"300\" \/><\/a><figcaption id=\"caption-attachment-2572\" class=\"wp-caption-text\">Z\u00e8bre contre Crocodile - Prise (Copyright 2008 Yves Roumazeilles)<\/figcaption><\/figure><\/td>\n<\/tr>\n<tr>\n<td>\n<p><figure id=\"attachment_2573\" aria-describedby=\"caption-attachment-2573\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/2008\/10\/pict7192w_zebra_vs_crocodile.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-2573\" title=\"pict7192w_zebra_vs_crocodile\" src=\"https:\/\/www.roumazeilles.net\/news\/en\/wordpress\/wp-content\/uploads\/2008\/10\/pict7192w_zebra_vs_crocodile-300x300.jpg\" alt=\"Le z\u00e8bre sera rapidement noy\u00e9 et d\u00e9vor\u00e9 (Copyright 2008 Yves Roumazeilles)\" width=\"300\" height=\"300\" \/><\/a><figcaption id=\"caption-attachment-2573\" class=\"wp-caption-text\">Le z\u00e8bre sera rapidement noy\u00e9 et d\u00e9vor\u00e9 (Copyright 2008 Yves Roumazeilles)<\/figcaption><\/figure><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><\/center><\/p>\n<p>Gnou bleu (<em>Connochaetes taurinus<\/em>, Blue Wildebeest, \u00f1u azul o \u00f1u taurino). Kenya, rivi\u00e8re Mara, septembre 2008.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>On peut se demander ce que deviendra cette migration dans les ann\u00e9es \u00e0 venir. Les gnous et les z\u00e8bres d\u00e9pendent en effet, \u00e0 la fois de l&rsquo;acc\u00e8s \u00e0 des territoires gigantesques qui leur sont de plus en plus disput\u00e9s par l&rsquo;homme et de la stabilit\u00e9 environnementale qui pourrait \u00eatre bouscul\u00e9e par le r\u00e9chauffement plan\u00e9taire. La [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2566,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31,46,19],"tags":[],"class_list":["post-2812","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-photo","category-photo-nature","category-safari-photo"],"_links":{"self":[{"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/posts\/2812","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/comments?post=2812"}],"version-history":[{"count":0,"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/posts\/2812\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/"}],"wp:attachment":[{"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/media?parent=2812"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/categories?post=2812"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.roumazeilles.net\/news\/fr\/wordpress\/wp-json\/wp\/v2\/tags?post=2812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}