{"id":547398,"date":"2023-02-03T19:16:03","date_gmt":"2023-02-03T16:16:03","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/new-study-has-important-implications-for-survival-of-the-critically-endangered-kakapo-parrot\/"},"modified":"2023-02-03T19:16:03","modified_gmt":"2023-02-03T16:16:03","slug":"new-study-has-important-implications-for-survival-of-the-critically-endangered-kakapo-parrot","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/new-study-has-important-implications-for-survival-of-the-critically-endangered-kakapo-parrot\/","title":{"rendered":"#New study has important implications for survival of the critically endangered k\u0101k\u0101p\u014d parrot"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a3e70f222e9e\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a3e70f222e9e\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/new-study-has-important-implications-for-survival-of-the-critically-endangered-kakapo-parrot\/#%E2%80%9CNew_study_has_important_implications_for_survival_of_the_critically_endangered_kakapo_parrot%E2%80%9D\" >&#8220;New study has important implications for survival of the critically endangered k\u0101k\u0101p\u014d parrot&#8221;<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/buradabiliyorum.com\/en\/new-study-has-important-implications-for-survival-of-the-critically-endangered-kakapo-parrot\/#About_the_kakapo\" >About the k\u0101k\u0101p\u014d<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"%E2%80%9CNew_study_has_important_implications_for_survival_of_the_critically_endangered_kakapo_parrot%E2%80%9D\"><\/span>&#8220;New study has important implications for survival of the critically endangered k\u0101k\u0101p\u014d parrot&#8221;<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<div>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2023\/new-study-has-importan.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2023\/new-study-has-importan.jpg\" data-sub-html=\"Credit: Wikimedia, CC BY 2.0 Chris Birmingham, 2012. (commons.wikimedia.org\/wiki\/File:Kakapo_Sirocco_1.jpg)\">\n<figure class=\"article-img\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2023\/new-study-has-importan.jpg\" alt=\"New study has important implications for survival of the critically endangered K\u0101k\u0101p\u014d parrot\" title=\"Credit: Wikimedia, CC BY 2.0 Chris Birmingham, 2012. (commons.wikimedia.org\/wiki\/File:Kakapo_Sirocco_1.jpg)\" width=\"800\" height=\"450\"\/><figcaption class=\"text-darken text-low-up text-truncate-js text-truncate mt-3\">\n                Credit: Wiki<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/social-mediaa\/\" data-internallinksmanager029f6b8e52c=\"1\" title=\"Social Media\" target=\"_blank\" rel=\"noopener\">media<\/a>, CC BY 2.0 Chris Birmingham, 2012. (commons.wikimedia.org\/wiki\/File:Kakapo_Sirocco_1.jpg)<br \/>\n            <\/figcaption><\/figure>\n<\/div>\n<\/div>\n<p>A new study published in <i>PeerJ<\/i> has provided crucial insights into the factors that affect the fertility of the critically endangered k\u0101k\u0101p\u014d, a flightless parrot species native to New Zealand.<\/p>\n<section class=\"article-banner first-banner ads-336x280\"><!-- \/4988204\/Phys_Story_InText_Box --><br \/>\n      <\/section>\n<p>The results of the study have important implications for conservation management efforts aimed at improving the slow population growth of this species, and highlights the need for a balanced <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">app<\/a>roach to conservation management, taking into account both the short-term benefits and potential long-term negative impacts of hand-rearing and other management strategies.<\/p>\n<p>The findings have immediate applications in k\u0101k\u0101p\u014d conservation management:\n<\/p>\n<ol>\n<li>Hand-rearing should be limited as much as possible for males; a reversal from previous strategies in which retaining female chicks in nests was prioritized.<\/li>\n<li>Population densities should be maximized so that there are sufficient males at leks to ensure adequate mate choice for females, but such that the female:male sex ratio is kept as high as the habitat can support.<\/li>\n<li>Artificial insemination should also be continued, to ensure sufficient sperm competition and increase founder representation.<\/li>\n<\/ol>\n<p>Low productivity limits population recovery of the k\u0101k\u0101p\u014d (Strigops habroptilus), with infrequent breeding, high infertility and low hatching success hampering conservation efforts. K\u0101k\u0101p\u014d breeding occurs irregularly, synchronized with the mass-fruiting (masting) of certain tree species, particularly the rimu tree (Dacrydium cupressinum), which only occurs every 2\u20134 years.<\/p>\n<p>Conservation strategies for wild-living threatened species such as the k\u0101k\u0101p\u014d rely on improving survival and productivity to increase population growth. Methods such as habitat restoration and predator control are used to enhance survival, but it is often problems with reproductive output which most limit recovery. Hand-rearing, in which animals are raised in captivity by humans, is often used in threatened species conservation programs, primarily to increase productivity by improving survival during development to maturity.<\/p>\n<p>The study used Bayesian mixed models to examine the relationship between hand-rearing, other environmental factors, and clutch fertility in the k\u0101k\u0101p\u014d.<\/p>\n<p>The results study suggests that some aspects of conservation management have inadvertently affected k\u0101k\u0101p\u014d productivity by reducing clutch fertility. The management intervention of hand-rearing, while undoubtedly increasing chick survival, has decreased clutch fertility. The sex difference in this effect indicates that hand-rearing affects copulation behavior in males more than females, in accordance with imprinting behaviors found in hand-reared male but not female k\u0101k\u0101p\u014d.<\/p>\n<p>The research also found that female copulation behavior\u2014including polyandry and repeated copulations\u2014is likely driven by high levels of sperm competition in k\u0101k\u0101p\u014d to improve the likelihood of fertilization.<\/p>\n<p>The findings of this study indicate the critical importance of collecting detailed longitudinal data, and investigating similar impacts of hand-rearing and sex ratios in other threatened bird species.\n<\/p>\n<h2><span class=\"ez-toc-section\" id=\"About_the_kakapo\"><\/span>About the k\u0101k\u0101p\u014d<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Up to 64 cm (25 in) in length, these flightless birds have finely blotched yellow-green plumage, a distinct facial disk, owl-style forward-facing eyes with surrounding disks of specially-textured feathers, a large gray beak, short legs, large blue feet, and relatively short wings and tail: a combination of traits making it unique among parrots. It is the world&#8217;s only flightless parrot, the world&#8217;s heaviest parrot, and also is nocturnal, herbivorous, visibly sexually dimorphic in body size, has a low basal metabolic rate, and does not have male parental care. It is the only parrot to have a polygynous lek breeding system. It is also possibly one of the world&#8217;s longest-living birds, with a reported lifespan of up to 100 years.<\/p>\n<p>The k\u0101k\u0101p\u014d is critically-endangered; the total known adult population is 249 living individuals, all of which are named and tagged, confined to four small islands off the coast of New Zealand that have been cleared of predators.<\/p>\n<p>The name k\u0101k\u0101p\u014d is Maori, and translates as &#8220;night parrot.&#8221;<\/p>\n<div class=\"article-main__more p-4\">\n<p><strong>More information:<\/strong><br \/>\n                                                Andrew Digby et al, Hidden impacts of conservation management on fertility of the critically endangered k\u0101k\u0101p\u014d, <i>PeerJ<\/i> (2023).  <a rel=\"nofollow noopener\" target=\"_blank\" data-doi=\"1\" href=\"https:\/\/dx.doi.org\/10.7717\/peerj.14675\">DOI: 10.7717\/peerj.14675<\/a><\/p>\n<p>Listen to the k\u0101k\u0101p\u014d&#8217;s calls: <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.doc.govt.nz\/nature\/native-animals\/birds\/birds-a-z\/kakapo\/\">www.doc.govt.nz\/nature\/native- \u2026 ds\/birds-a-z\/kakapo\/<\/a><\/p>\n<div class=\"mt-3\">\n<p>\n                                                    <strong>Journal information:<\/strong><br \/>\n                                                                                                            <cite>PeerJ<\/cite><br \/>\n                                                        <a rel=\"nofollow noopener\" target=\"_blank\" class=\"icon_open\" href=\"https:\/\/peerj.com\/\"><br \/>\n                                                            <svg><use href=\"https:\/\/phys.b-cdn.net\/tmpl\/v6\/img\/svg\/sprite.svg#icon_open\" x=\"0\" y=\"0\"\/><\/svg><\/a> <\/p><\/div>\n<\/p><\/div>\n<p>                                        <!-- print only --><\/p>\n<div class=\"d-none d-print-block\">\n<p>                                                <strong>Citation<\/strong>:<br \/>\n                                                New study has important implications for survival of the critically endangered k\u0101k\u0101p\u014d parrot (2023, February 3)<br \/>\n                                                retrieved 3 February 2023<br \/>\n                                                from https:\/\/phys.org\/<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/news\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"News\" target=\"_blank\" rel=\"noopener\">news<\/a>\/2023-02-important-implications-survival-critically-endangered.html<\/p>\n<p>                                             This document is subject to copyright. 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(commons.wikimedia.org\/wiki\/File:Kakapo_Sirocco_1.jpg) A new study published in PeerJ has provided crucial insights into the factors that affect the fertility of the critically endangered k\u0101k\u0101p\u014d, a flightless parrot species native to New Zealand. The results of&#8230;<\/p>\n","protected":false},"author":1,"featured_media":547399,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2023\/new-study-has-importan.jpg","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-547398","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sciencee"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/547398","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=547398"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/547398\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/547399"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=547398"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=547398"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=547398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}