{"id":5846,"date":"2019-04-10T15:57:41","date_gmt":"2019-04-10T18:57:41","guid":{"rendered":"https:\/\/biologo.com.br\/bio\/?p=5846"},"modified":"2026-03-17T09:51:23","modified_gmt":"2026-03-17T12:51:23","slug":"a-origem-das-aves","status":"publish","type":"post","link":"https:\/\/biologo.com.br\/bio\/a-origem-das-aves\/","title":{"rendered":"A Origem das Aves"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><span style=\"color: #000000; font-size: 14pt;\"><span style=\"color: #3366ff;\"><strong>A Origem das Aves:<\/strong> <\/span>A ordem dos Passeriformes, os p\u00e1ssaros ou passarinhos, grupo que representa mais de 60% das esp\u00e9cies atuais de aves, teria surgido por volta de 47 milh\u00f5es de anos atr\u00e1s na regi\u00e3o do Pac\u00edfico Sul, nos arredores da Austr\u00e1lia e da Nova Zel\u00e2ndia. <\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color: #000000; font-size: 14pt;\">Dali essas pequenas aves, que hoje incluem exemplares famosos por seu canto melodioso, como os can\u00e1rios, ou onipresentes no globo, como os pardais, espalharam-se pelos demais continentes.<\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span style=\"font-family: 'courier new', courier, monospace; font-size: 24pt; color: #000000;\"><strong>A Origem das Aves<\/strong><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color: #000000;\"><span style=\"font-family: georgia, palatino, serif; font-size: 18pt;\"><strong><span style=\"font-family: arial, helvetica, sans-serif; font-size: 10pt;\"><span style=\"font-size: 8pt;\"><span style=\"color: #999999;\"><span style=\"color: #333333;\">Abril\/2019<\/span> ::<\/span> p<span style=\"color: #000000;\">or Marcos Pivetta<\/span> \/&nbsp;<\/span><a style=\"color: #000000;\" href=\"http:\/\/revistapesquisa.fapesp.br\/\" target=\"_blank\" rel=\"noreferrer noopener\"><span style=\"font-size: 10pt;\"><span style=\"font-size: 8pt;\">Pesquisa FAPESP<\/span><\/span><\/a> <\/span><\/strong><br><strong>A<\/strong><\/span>s conclus\u00f5es fazem parte de um estudo internacional coordenado por pesquisadores da Universidade Estadual da Louisiana (LSU), dos Estados Unidos, com a participa\u00e7\u00e3o de colegas de 10 pa\u00edses, inclusive o Brasil. O trabalho resultou em um artigo, publicado em 1\u00ba de abril na revista cient\u00edfica <em>PNAS<\/em>.<\/span><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><a href=\"https:\/\/biologo.com.br\/bio\/ornitologia\/\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"631\" height=\"351\" data-attachment-id=\"897\" data-permalink=\"https:\/\/biologo.com.br\/bio\/ornitologia\/ornitologo\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2016\/07\/ornitologo.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=\"ornitologo\" data-image-description=\"&lt;p&gt;Ornit\u00f3logo medindo asa de ave. Aves capturada \u00e9 medida antes de ser anelada e liberada. Todos os dados s\u00e3o registrados e inclu\u00eddos no banco de dados.&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Ornit\u00f3logo medindo asa de ave. Aves capturada \u00e9 medida antes de ser anelada e liberada. Todos os dados s\u00e3o registrados e inclu\u00eddos no banco de dados.&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2016\/07\/ornitologo.jpg?fit=631%2C351&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2016\/07\/ornitologo.jpg?resize=631%2C351&#038;ssl=1\" alt=\"Ornitologia - ornit\u00f3logo\" class=\"wp-image-897\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2016\/07\/ornitologo.jpg?w=631&amp;ssl=1 631w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2016\/07\/ornitologo.jpg?resize=300%2C167&amp;ssl=1 300w\" sizes=\"auto, (max-width: 631px) 100vw, 631px\" \/><\/a><figcaption class=\"wp-element-caption\"><span style=\"color: #000000; font-size: 10pt;\"><a href=\"https:\/\/biologo.com.br\/bio\/ornitologia\/\">Ornitologia<\/a> &#8211; Ornit\u00f3logo medindo asa de ave.\u00a0<\/span><\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color: #000000;\">A equipe analisou o material gen\u00e9tico de 221 exemplares de p\u00e1ssaros, que representam todas as 137 fam\u00edlias que comp\u00f5em essa ordem, al\u00e9m de 13 registros f\u00f3sseis de p\u00e1ssaros e de aves de ordens aparentadas.<\/span><span style=\"color: #000000;\"> Assim reconstruiu a hist\u00f3ria evolutiva e montou uma \u00e1rvore geneal\u00f3gica desse grupo de seres alados.<\/span><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><span style=\"font-size: 14pt; color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/biologo.com.br\/bio\/ornitologia-no-brasil\/\">Ornitologia no Brasil<\/a><\/span><\/li>\n\n\n\n<li><span style=\"font-size: 14pt; color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/biologo.com.br\/bio\/pica-pau-dourado-grande\/\">Pica-pau-dourado-grande<\/a><\/span><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color: #000000;\">O estudo tamb\u00e9m identificou uma nova fam\u00edlia de p\u00e1ssaros, a dos Hyliidae, da \u00c1frica, e confirmou o&nbsp;<em>status<\/em> taxon\u00f4mico de outras seis fam\u00edlias.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color: #000000;\">Os resultados do trabalho confirmam outros estudos que tamb\u00e9m situaram o lugar de origem dos p\u00e1ssaros no hemisf\u00e9rio Sul, geralmente nas cercanias da Austr\u00e1lia ou na Am\u00e9rica do Sul. Mas sinalizam que essa ordem teria surgido mais recentemente, por meio de processos evolutivos mais complexos, ainda n\u00e3o devidamente compreendidos, do que defende a vis\u00e3o mais convencional da ornitologia.<\/span><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\" style=\"border-top-left-radius:100px;border-top-right-radius:100px;border-bottom-left-radius:100px;border-bottom-right-radius:100px\">\n<p class=\"wp-block-paragraph\"><span style=\"color: #000000; font-size: 14pt;\"><span style=\"color: #ffffff;\"> \u201cNossos dados indicam que os p\u00e1ssaros surgiram 35 milh\u00f5es de anos depois do que afirma a estimativa prevalente nos \u00faltimos 15 anos\u201d, comenta o bi\u00f3logo evolucionista Carl Oliveros, da LSU, principal autor do estudo. <\/span><\/span><\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span style=\"font-size: 14pt; font-family: 'courier new', courier, monospace;\"><strong><span style=\"color: #000000;\">Hist\u00f3ria evolutiva das aves<\/span><\/strong><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><a href=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/Origem-das-Aves.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"631\" height=\"351\" data-attachment-id=\"5847\" data-permalink=\"https:\/\/biologo.com.br\/bio\/a-origem-das-aves\/origem-das-aves\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/Origem-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=\"Origem-das-Aves\" data-image-description=\"&lt;p&gt; Um Tui em Waikawa, Marlborough, Nova Zel\u00e2ndia.Origem das Aves&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Tui (Prosthemadera novaeseelandiae), ave end\u00eamica da Nova Zel\u00e2ndia. by Sid Mosdell&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/Origem-das-Aves.jpg?fit=631%2C351&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/Origem-das-Aves.jpg?resize=631%2C351&#038;ssl=1\" alt=\"A Origem das Aves\" class=\"wp-image-5847\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/Origem-das-Aves.jpg?w=631&amp;ssl=1 631w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/Origem-das-Aves.jpg?resize=300%2C167&amp;ssl=1 300w\" sizes=\"auto, (max-width: 631px) 100vw, 631px\" \/><\/a><figcaption class=\"wp-element-caption\"><span style=\"font-size: 10pt; color: #000000;\">Tui (<em>Prosthemadera novaeseelandiae<\/em>), ave end\u00eamica da Nova Zel\u00e2ndia<span style=\"font-size: 8pt;\">. by Sid Mosdell<\/span><\/span><\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color: #000000;\">O trabalho tamb\u00e9m sinaliza que os aumentos na taxa de diversifica\u00e7\u00e3o desse grupo de aves em sua hist\u00f3ria evolutiva n\u00e3o est\u00e3o ligados a mudan\u00e7as na temperatura global ou \u00e0 coloniza\u00e7\u00e3o de novas terras. <\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color: #000000;\">\u201cEsse resultado foi surpreendente e indica que outros processos ainda n\u00e3o conhecidos influenciaram o processo de diversifica\u00e7\u00e3o dos p\u00e1ssaros\u201d, comenta o ornit\u00f3logo brasileiro Alexandre Aleixo, hoje curador do Museu de Hist\u00f3ria Natural da Finl\u00e2ndia, ligado \u00e0 Universidade de Helsinque, um dos autores do trabalho. At\u00e9 o in\u00edcio de 2019, Aleixo era pesquisador do <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/biologo.com.br\/bio\/emilio-goeldi-o-museu-da-amazonia\/\">Museu Paraense Em\u00edlio Goeldi<\/a><\/span>, em Bel\u00e9m.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color: #000000;\">Historicamente, grandes mudan\u00e7as geol\u00f3gicas t\u00eam sido apontadas como um fator determinante para a cria\u00e7\u00e3o de condi\u00e7\u00f5es ambientais prop\u00edcias para o surgimento dos p\u00e1ssaros. No caso dessa ordem das aves, a altera\u00e7\u00e3o comumente citada teria se dado h\u00e1 cerca de 82 milh\u00f5es de anos.&nbsp;<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color: #000000;\"><span style=\"font-size: 10pt;\">&gt;&gt; Para saber mais, leia o artigo completo no site da Revista Fapesp &gt;&nbsp;<\/span><\/span><strong><span style=\"font-size: 10pt;\"><a title=\"A origem dos p\u00e1ssaros\" href=\"http:\/\/revistapesquisa.fapesp.br\/2019\/04\/03\/a-origem-dos-passaros\/\" target=\"_blank\" rel=\"noopener noreferrer\">A origem dos p\u00e1ssaros<\/a><\/span><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A Origem das Aves: A ordem dos Passeriformes, os p\u00e1ssaros ou passarinhos, grupo que representa mais de 60% das esp\u00e9cies<\/p>\n","protected":false},"author":1,"featured_media":5847,"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_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","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},"jetpack_post_was_ever_published":false},"categories":[121,42,28,27],"tags":[],"class_list":["post-5846","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-evolucao","category-ornitologia","category-paleontologia","category-zoologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A Origem das Aves: Ornitologia e evolu\u00e7\u00e3o - Bi\u00f3logo<\/title>\n<meta name=\"description\" content=\"A ordem Passeriformes, grupo que representa mais de 60% das esp\u00e9cies atuais de aves, teria surgido h\u00e1 47 milh\u00f5es de anos. 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