{"id":7600,"date":"2020-08-28T18:18:51","date_gmt":"2020-08-28T21:18:51","guid":{"rendered":"https:\/\/biologo.com.br\/bio\/?p=7600"},"modified":"2020-09-02T14:16:30","modified_gmt":"2020-09-02T17:16:30","slug":"migracao-das-aves","status":"publish","type":"post","link":"https:\/\/biologo.com.br\/bio\/migracao-das-aves\/","title":{"rendered":"Migra\u00e7\u00e3o das aves"},"content":{"rendered":"<p><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><strong>Migra\u00e7\u00e3o das aves: <\/strong><span style=\"color: #000000;\">As migra\u00e7\u00f5es s\u00e3o fen\u00f4menos volunt\u00e1rios e intencionais com car\u00e1ter peri\u00f3dico com o objetivo de encontrar alimento e boas condi\u00e7\u00f5es meteorol\u00f3gicas. <\/span><\/span><\/span><\/p>\n<p><span style=\"font-size: 14pt; color: #000000;\">Os fatores que desencadeiam as migra\u00e7\u00f5es s\u00e3o pouco conhecidos. Todavia, o comportamento migrat\u00f3rio pode ser mais antigo do que se pensava.<\/span><\/p>\n<h2><span style=\"font-family: 'courier new', courier, monospace; font-size: 24pt; color: #000000;\"><strong>Migra\u00e7\u00e3o das aves<\/strong><\/span><\/h2>\n<p><span style=\"font-size: 8pt; color: #000000;\">28\/8\/2020 ::\u00a0 Pesquisa FAPESP. \u00a0<span style=\"color: #999999;\"><a style=\"color: #999999;\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/\" target=\"_blank\" rel=\"noopener noreferrer\">CC BY-ND 4.0<\/a><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: georgia, palatino, serif; font-size: 24pt;\"><strong>A<\/strong><\/span>lgumas aves dependem de percorrer dist\u00e2ncias quase inacredit\u00e1veis, at\u00e9 de um continente a outro, para escapar de varia\u00e7\u00f5es clim\u00e1ticas e garantir alimento suficiente para subsistir e se reproduzir. <\/span><\/p>\n<figure id=\"attachment_7565\" aria-describedby=\"caption-attachment-7565\" style=\"width: 300px\" class=\"wp-caption alignright\"><a href=\"https:\/\/biologo.com.br\/bio\/importancia-do-mangue\/\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"7565\" data-permalink=\"https:\/\/biologo.com.br\/bio\/importancia-do-mangue\/importancia-dos-mangues\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/08\/Importancia-dos-mangues.jpg?fit=631%2C351&amp;ssl=1\" data-orig-size=\"631,351\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Importancia-dos-mangues\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Angelica Barcheta&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/08\/Importancia-dos-mangues.jpg?fit=631%2C351&amp;ssl=1\" class=\"wp-image-7565 size-medium\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/08\/Importancia-dos-mangues.jpg?resize=300%2C167&#038;ssl=1\" alt=\"\" width=\"300\" height=\"167\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/08\/Importancia-dos-mangues.jpg?resize=300%2C167&amp;ssl=1 300w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/08\/Importancia-dos-mangues.jpg?w=631&amp;ssl=1 631w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-7565\" class=\"wp-caption-text\"><span style=\"font-size: 10pt; color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/biologo.com.br\/bio\/importancia-do-mangue\/\">Import\u00e2ncia do mangue<\/a><\/span><span style=\"font-size: 8pt;\">. \u00a9 Angelica Barcheta<\/span><\/figcaption><\/figure>\n<p><span style=\"color: #000000;\">Esse comportamento pode ser mais antigo do que se achava, de acordo com simula\u00e7\u00e3o computacional liderada pelo zo\u00f3logo Marius Somveille, da Universidade Yale, nos Estados Unidos (Nature Communications, 18 de fevereiro).<\/span><\/p>\n<ul>\n<li><span style=\"font-size: 14pt; color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/biologo.com.br\/bio\/diversificacao-das-aves-amazonicas\/\">Diversifica\u00e7\u00e3o das aves amaz\u00f4nicas<\/a><\/span><\/li>\n<li><span style=\"font-size: 14pt; color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/biologo.com.br\/bio\/voando-e-dormindo\/\">Voando e dormindo<\/a><\/span><\/li>\n<li><span style=\"font-size: 14pt; color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/biologo.com.br\/bio\/os-biguas\/\">Os Bigu\u00e1s<\/a><\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">O modelo foi validado com quase 10 mil esp\u00e9cies de aves atuais e depois alimentado com reconstru\u00e7\u00f5es do clima passado, levando em conta o custo energ\u00e9tico da migra\u00e7\u00e3o e o benef\u00edcio em termos de alimentos dispon\u00edveis nas diferentes esta\u00e7\u00f5es do ano.<\/span><\/p>\n<h3><span style=\"font-family: 'courier new', courier, monospace; font-size: 12pt; color: #000000;\"><strong>Mil\u00eanios de migra\u00e7\u00e3o<\/strong><\/span><\/h3>\n<p><span style=\"color: #000000;\"> <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"7601\" data-permalink=\"https:\/\/biologo.com.br\/bio\/migracao-das-aves\/migracao-das-aves-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/08\/Migracao-das-aves.jpg?fit=631%2C351&amp;ssl=1\" data-orig-size=\"631,351\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Migra\u00e7\u00e3o-das-aves\" data-image-description=\"&lt;p&gt;Migra\u00e7\u00e3o das aves; passarinhos, por do sol, aves migrat\u00f3rias&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Migra\u00e7\u00e3o das aves&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/08\/Migracao-das-aves.jpg?fit=631%2C351&amp;ssl=1\" class=\"alignleft wp-image-7601 size-medium\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/08\/Migracao-das-aves.jpg?resize=300%2C167&#038;ssl=1\" alt=\"Migra\u00e7\u00e3o das aves\" width=\"300\" height=\"167\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/08\/Migracao-das-aves.jpg?resize=300%2C167&amp;ssl=1 300w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/08\/Migracao-das-aves.jpg?w=631&amp;ssl=1 631w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>Os resultados indicam que as longas viagens a\u00e9reas permaneceram importantes nos \u00faltimos 50 mil anos. O per\u00edodo inclui o \u00daltimo M\u00e1ximo Glacial, h\u00e1 cerca de 20 mil anos, quando se supunha que a pouca variabilidade clim\u00e1tica global t\u00edpica da Era do Gelo beneficiaria uma vida mais sed<\/span>ent\u00e1ria.<\/p>\n<p>Apesar da estabilidade m\u00e9dia<span style=\"color: #000000;\"> das migra\u00e7\u00f5es, o estudo detectou uma varia\u00e7\u00e3o conforme as regi\u00f5es do mundo. No Velho Mundo (Europa, \u00c1frica e \u00c1sia), a propor\u00e7\u00e3o de migrantes se manteve bastante est\u00e1vel, talvez um pouco maior nos per\u00edodos mais antigos analisados, e as dist\u00e2ncias eram compar\u00e1veis \u00e0s atuais. <\/span><\/p>\n<p><span style=\"color: #000000;\">J\u00e1 nas Am\u00e9ricas a propor\u00e7\u00e3o de esp\u00e9cies migrat\u00f3rias seria 20% menor h\u00e1 20 mil anos em rela\u00e7\u00e3o ao que se v\u00ea hoje. As dist\u00e2ncias viajadas tamb\u00e9m eram, em m\u00e9dia, 500 quil\u00f4metros m<\/span>ais curtas. De acordo com o modelo, quanto mais se volta no tempo, menos esp\u00e9cies se reproduziam na Am\u00e9rica do Norte.<\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-size: 10pt;\">Fonte: <a style=\"color: #000000;\" href=\"https:\/\/revistapesquisa.fapesp.br\/\" target=\"_blank\" rel=\"noopener noreferrer\">Revista Fapesp<\/a> &gt;\u00a0<\/span><\/span><span style=\"font-size: 10pt;\"><a title=\"Mil\u00eanios de migra\u00e7\u00e3o\" href=\"https:\/\/revistapesquisa.fapesp.br\/milenios-de-migracao\/\">Mil\u00eanios de migra\u00e7\u00e3o<\/a><\/span><\/p>\n<h5><span style=\"font-size: 10pt; font-family: 'courier new', courier, monospace; color: #000000;\"><strong>Artigo cient\u00edfico<\/strong><\/span><\/h5>\n<ul>\n<li><span class=\"reference-text\" style=\"font-size: 8pt;\"><cite class=\"citation journal\">Lack, David (1968).\u00a0\u00abBird Migration and Natural Selection\u00bb.\u00a0<i>Oikos<\/i>.\u00a0<b>19<\/b> (1): 1\u20139.<\/cite><\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Migra\u00e7\u00e3o das aves: As migra\u00e7\u00f5es s\u00e3o fen\u00f4menos volunt\u00e1rios e intencionais com car\u00e1ter peri\u00f3dico com o objetivo de encontrar alimento e<\/p>\n","protected":false},"author":1,"featured_media":7601,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Os fatores que desencadeiam as migra\u00e7\u00f5es s\u00e3o pouco conhecidos. Todavia, o comportamento migrat\u00f3rio pode ser mais antigo do que se pensava.","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[138,42,27],"tags":[],"class_list":["post-7600","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-comportamento","category-ornitologia","category-zoologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Migra\u00e7\u00e3o das aves: um comportamento milenar - Ornitologia - Bi\u00f3logo<\/title>\n<meta name=\"description\" content=\"Fatores que desencadeiam migra\u00e7\u00f5es s\u00e3o pouco conhecidos. Todavia, o comportamento pode ser mais antigo do que se pensava. 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