{"id":46,"date":"2013-12-10T22:29:41","date_gmt":"2013-12-10T22:29:41","guid":{"rendered":"http:\/\/sciencemediacentre.ca\/site\/?p=46"},"modified":"2013-12-11T14:08:21","modified_gmt":"2013-12-11T14:08:21","slug":"mating-has-costs-for-male-ladybugs","status":"publish","type":"post","link":"http:\/\/sciencemediacentre.ca\/site\/mating-has-costs-for-male-ladybugs\/","title":{"rendered":"Mating has costs for male ladybugs"},"content":{"rendered":"<div id=\"attachment_47\" style=\"width: 410px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2013\/12\/Two-spot-ladybug.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-47\" class=\"size-full wp-image-47\" alt=\"Two-spot ladybug\" src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2013\/12\/Two-spot-ladybug.jpg\" width=\"400\" height=\"281\" srcset=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2013\/12\/Two-spot-ladybug.jpg 400w, http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2013\/12\/Two-spot-ladybug-300x210.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-47\" class=\"wp-caption-text\">Male two-spot ladybugs that haven&#8217;t mated live significantly longer than those who have. (Credit: <a href=\"http:\/\/www.flickr.com\/photos\/24557420@N05\/5877962846\/sizes\/m\/in\/photostream\/\" target=\"_blank\">*Psycho Delia&#8217;, via flickr<\/a>)<\/p><\/div>\n<p>The toll of raising young on females is well-documented, but a new study looks at the less well-understood costs mating poses to males. Males of the <strong>two-spot ladybird beetle<\/strong> (<em>Adalia bipunctata<\/em>) who had mated had 53% shorter life spans than those who hadn\u2019t. As well, males who produced a spermatophore &#8211; a capsule containing sperm and proteins which the females eject and eat after mating &#8211; ingested more food than males who didn\u2019t, presumably to make up for lost nutrients.<!--more--><\/p>\n<p><a href=\"http:\/\/www.plosone.org\/article\/info%3Adoi%2F10.1371%2Fjournal.pone.0081934\" target=\"_blank\">Original research article<\/a> published in <em>PLOS ONE<\/em> on <strong>December 5, 2013<\/strong><\/p>\n<p><strong>Names and affiliations of selected authors:<\/strong><\/p>\n<p>Jennifer Perry, Department of Zoology, University of Oxford<br \/>\nCrystal Tse, Department of Psychology, University of Waterloo<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The toll of raising young on females is well-documented, but a new study looks at the less well-understood costs mating poses to males. Males of the two-spot ladybird beetle (Adalia bipunctata) who had mated had 53% shorter life spans than those who hadn\u2019t. As well, males who produced a spermatophore &#8211; a capsule containing sperm [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":47,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_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":""},"categories":[25],"tags":[39,40],"class_list":["post-46","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paper-of-interest","tag-animal-behaviour","tag-insects"],"jetpack_featured_media_url":"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2013\/12\/Two-spot-ladybug.jpg","jetpack_shortlink":"https:\/\/wp.me\/p4DqbN-K","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/46","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/comments?post=46"}],"version-history":[{"count":1,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/46\/revisions"}],"predecessor-version":[{"id":48,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/46\/revisions\/48"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media\/47"}],"wp:attachment":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media?parent=46"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/categories?post=46"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/tags?post=46"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}