{"id":55,"date":"2019-02-04T07:39:31","date_gmt":"2019-02-04T07:39:31","guid":{"rendered":"http:\/\/www.hu.gatech.edu\/Shishkov\/?page_id=55"},"modified":"2019-02-04T18:52:35","modified_gmt":"2019-02-04T18:52:35","slug":"larvae-form-a-fountain-to-eat","status":"publish","type":"page","link":"https:\/\/www.hu.gatech.edu\/Shishkov\/larvae-form-a-fountain-to-eat\/","title":{"rendered":"Larvae form a &#8220;fountain&#8221; to eat"},"content":{"rendered":"\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" width=\"840\" height=\"473\" src=\"https:\/\/www.youtube.com\/embed\/iRIyK4KLH8A?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><figcaption>Larvae eat a large pizza in two hours.<\/figcaption><\/figure>\n\n\n\n<p>A single larva eats for only 5 \u00b1 8 minutes at a time, for 44% of the time it is around food. Its mouth shears food very quickly:<\/p>\n\n\n\n<figure class=\"wp-block-video\"><video height=\"1080\" style=\"aspect-ratio: 1920 \/ 1080;\" width=\"1920\" controls src=\"http:\/\/www.hu.gatech.edu\/Shishkov\/wp-content\/uploads\/2019\/02\/mouth_slowed_4x.mp4\"><\/video><figcaption>The mouth of a black solider fly larva, slowed 4 times. The maxillae move up and down to shear food at 27 radians per second.<\/figcaption><\/figure>\n\n\n\n<p>Since not all larvae are eating at the same time, hungry larvae can replace full larvae to eat.<\/p>\n\n\n\n<p>Larvae crawl towards food on the bottom of a container:<\/p>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" width=\"840\" height=\"473\" src=\"https:\/\/www.youtube.com\/embed\/TPOKzufnqPE?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>And fall away from the food after eating on the top layer of the fountain.<\/p>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" width=\"840\" height=\"473\" src=\"https:\/\/www.youtube.com\/embed\/Gafb-AOLleM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>We use Particle Image Velocimetry to find that larvae form an outflow on the top and inflow\/vortex on the bottom:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.hu.gatech.edu\/Shishkov\/wp-content\/uploads\/2019\/02\/PIV.png\" alt=\"\" class=\"wp-image-59\" width=\"424\" height=\"397\" srcset=\"https:\/\/www.hu.gatech.edu\/Shishkov\/wp-content\/uploads\/2019\/02\/PIV.png 613w, https:\/\/www.hu.gatech.edu\/Shishkov\/wp-content\/uploads\/2019\/02\/PIV-300x281.png 300w\" sizes=\"auto, (max-width: 424px) 85vw, 424px\" \/><figcaption>Comparison of images of larvae feeding to average vectors generated with PIV.<\/figcaption><\/figure><\/div>\n\n\n\n<p>We then do this with increasing numbers of larvae and calculate the outflow of larvae per minute away from food (equal to the inflow of hungry larvae to food). This mixing increases their eating rates.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"944\" height=\"329\" src=\"http:\/\/www.hu.gatech.edu\/Shishkov\/wp-content\/uploads\/2019\/02\/larva-fountain-1.png\" alt=\"\" class=\"wp-image-96\" srcset=\"https:\/\/www.hu.gatech.edu\/Shishkov\/wp-content\/uploads\/2019\/02\/larva-fountain-1.png 944w, https:\/\/www.hu.gatech.edu\/Shishkov\/wp-content\/uploads\/2019\/02\/larva-fountain-1-300x105.png 300w, https:\/\/www.hu.gatech.edu\/Shishkov\/wp-content\/uploads\/2019\/02\/larva-fountain-1-768x268.png 768w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>A single larva eats for only 5 \u00b1 8 minutes at a time, for 44% of the time it is around food. Its mouth shears food very quickly: Since not all larvae are eating at the same time, hungry larvae can replace full larvae to eat. Larvae crawl towards food on the bottom of a &hellip; <a href=\"https:\/\/www.hu.gatech.edu\/Shishkov\/larvae-form-a-fountain-to-eat\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Larvae form a &#8220;fountain&#8221; to eat&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-55","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.hu.gatech.edu\/Shishkov\/wp-json\/wp\/v2\/pages\/55","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hu.gatech.edu\/Shishkov\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.hu.gatech.edu\/Shishkov\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.hu.gatech.edu\/Shishkov\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hu.gatech.edu\/Shishkov\/wp-json\/wp\/v2\/comments?post=55"}],"version-history":[{"count":6,"href":"https:\/\/www.hu.gatech.edu\/Shishkov\/wp-json\/wp\/v2\/pages\/55\/revisions"}],"predecessor-version":[{"id":99,"href":"https:\/\/www.hu.gatech.edu\/Shishkov\/wp-json\/wp\/v2\/pages\/55\/revisions\/99"}],"wp:attachment":[{"href":"https:\/\/www.hu.gatech.edu\/Shishkov\/wp-json\/wp\/v2\/media?parent=55"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}