{"id":71845,"date":"2022-01-10T07:57:20","date_gmt":"2022-01-10T07:57:20","guid":{"rendered":"https:\/\/www.gkseries.com\/blog\/?p=71845"},"modified":"2022-01-10T07:57:21","modified_gmt":"2022-01-10T07:57:21","slug":"tracking-animals-through-e-dna","status":"publish","type":"post","link":"https:\/\/www.gkseries.com\/blog\/tracking-animals-through-e-dna\/","title":{"rendered":"Tracking animals through e-DNA: UPSC Daily Important Topic | 10 January 2022"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u25a0&nbsp; Tracking animals through e-DNA-<\/h2>\n\n\n\n<p>\u2713According to some studies, DNA floating in the air (e-DNA) can boost biodiversity conservation efforts across the world.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u25cf About:<\/h3>\n\n\n\n<p>\u2713Researchers have independently shown that environmental DNA (e-DNA) have the potential to identify and monitor terrestrial animals.<\/p>\n\n\n\n<p>\u2713Animals shed DNA through their breath, saliva, fur, or feces into the environment and these samples are called e-DNA.<\/p>\n\n\n\n<p>\u2713Airborne e-DNA sampling is a biomonitoring method that is rising in popularity among biologists and conservationists as it provides abundant information.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u25cf Significance:<\/h3>\n\n\n\n<p>\u2713It will help in understanding the composition of animal communities<\/p>\n\n\n\n<p>\u2713It will also detect the spread of non-native species.<\/p>\n\n\n\n<p>\u2713This method will be tuned with the current techniques to monitor endangered species.<\/p>\n\n\n\n<p>\u2713Methods currently used by biologists to observe animals in person or by picking up DNA from animals\u2019 footprints or feces, demand extensive fieldwork.<\/p>\n\n\n\n<p>\u2713Spotting animals can be challenging, especially if they inhabit inaccessible habitats.<\/p>\n\n\n\n<p>\u2713It can help in tracking long-distance migratory birds and other birds\u2019 flying patterns.<\/p>\n\n\n\n<p>\u2713It can also capture DNA from smaller animals including insects.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u25cf Related Initiatives:<\/h3>\n\n\n\n<p>\u2713Global EDNA Project by UNESCO<\/p>\n\n\n\n<p>\u2713It was launched to study the vulnerability of species to climate change at Marine World Heritage Sites in October 2021.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u25cf DNA:<\/h3>\n\n\n\n<p>\u2713DNA or deoxyribonucleic acid, is the hereditary material in organisms that contains the biological instructions for building and maintaining them.<\/p>\n\n\n\n<p>\u2713The chemical structure of DNA is the same for all organisms, but differences exist in the order of the DNA building blocks, known as base pairs.<\/p>\n\n\n\n<p>\u2713Unique sequences of base pairs, particularly repeating patterns, provide a means to identify species, populations, and even individuals.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u25cf e-DNA:<\/h3>\n\n\n\n<p>\u2713Environmental DNA (e-DNA) is nuclear or mitochondrial DNA that is released from an organism into the environment.<\/p>\n\n\n\n<p>\u2713Sources of e-DNA include secreted feces, mucous, and gametes; shed skin and hair; and carcasses.<\/p>\n\n\n\n<p>\u2713e-DNA can be detected in cellular or extracellular (dissolved DNA) form.<\/p>\n\n\n\n<p>\u2713In aquatic environments, eDNA is diluted and distributed by currents and other hydrological processes, but it only lasts about 7\u201321 days, depending on environmental conditions.<\/p>\n\n\n\n<p>\u2713Exposure to UVB radiation, acidity, heat, and endo- and exonucleases can degrade e-DNA.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u25a0&nbsp; Tracking animals through e-DNA- \u2713According to some studies, DNA floating in the air (e-DNA) can boost biodiversity conservation efforts across the world. \u25cf About: \u2713Researchers have independently shown that environmental DNA (e-DNA) have the potential to identify and monitor terrestrial animals. \u2713Animals shed DNA through their breath, saliva, fur, or feces into the environment [&hellip;]<\/p>\n","protected":false},"author":894,"featured_media":71860,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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