{"id":251,"date":"2008-11-04T10:30:25","date_gmt":"2008-11-03T21:30:25","guid":{"rendered":"https:\/\/blog.waikato.ac.nz\/bioblog\/2008\/11\/volcanic_eruptions_human_bottl\/"},"modified":"2008-11-04T10:30:25","modified_gmt":"2008-11-03T21:30:25","slug":"volcanic-eruptions-human-bottl","status":"publish","type":"post","link":"https:\/\/blog.waikato.ac.nz\/bioblog\/2008\/11\/volcanic-eruptions-human-bottl\/","title":{"rendered":"volcanic eruptions &amp; human bottlenecks"},"content":{"rendered":"<p>We know, from looking at the amount of genetic variation in the global human population, that it went through a fairly pronounced bottleneck around 70,000 years ago. This has been variously attributed to the founder effect, with only small populations moving out of Africa into Europe &amp; Eurasia, and to the devastating consequences of the eruption of a supervolcano (Toba, in what is now Indonesia). The latter possibility has been the focus of a number of articles (e.g. Ambrose, 1998 &#8211; I might post more thoroughly on this another time).<\/p>\n<p>I was idly searching for more information on this when I happened across <a href=\"http:\/\/anthropology.net\/2007\/07\/06\/mount-toba-eruption-ancient-humans-unscathed-study-claims\/\">an article on Anthropology.net<\/a> that does a good job of presenting contrasting viewpoints on the cause of this bottleneck &#8211; and showing how tentative our understanding in this area really is. <a href=\"http:\/\/anthropology.net\/2007\/07\/06\/mount-toba-eruption-ancient-humans-unscathed-study-claims\/\">Well worth a read<\/a>.<\/p>\n<p><cite>S.H. Ambrose (1998) Late Pleistocene human population bottlenecks, volcanic winter, and differentiation of modern humans.&nbsp;<u>Journal of Human Evolution<\/u>&nbsp;<b>34<\/b>: 623-651<\/cite><\/p>\n","protected":false},"excerpt":{"rendered":"<p>We know, from looking at the amount of genetic variation in the global human population, that it went through a fairly pronounced bottleneck around 70,000 years ago. This has been variously attributed to the founder effect, with only small populations moving out of Africa into Europe &amp; Eurasia, and to the devastating consequences of the [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":1465,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,7,15,2],"tags":[3,9,10,4],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>volcanic eruptions &amp; human bottlenecks : BioBlog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.waikato.ac.nz\/bioblog\/2008\/11\/volcanic-eruptions-human-bottl\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"volcanic eruptions &amp; human bottlenecks : BioBlog\" \/>\n<meta property=\"og:description\" content=\"We know, from looking at the amount of genetic variation in the global human population, that it went through a fairly pronounced bottleneck around 70,000 years ago. 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