{"id":98011,"date":"2026-04-13T13:23:06","date_gmt":"2026-04-13T07:53:06","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=98011"},"modified":"2026-04-13T16:19:53","modified_gmt":"2026-04-13T10:49:53","slug":"sentinel-species","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/sentinel-species\/","title":{"rendered":"Sentinel Species"},"content":{"rendered":"<h2><b>Sentinel Species Latest News<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Recently, the International Union for Conservation of Nature (IUCN) declared the emperor penguin to be an endangered sentinel species.<\/span><\/p>\n<h2><b>About Sentinel Species<\/b><\/h2>\n<ul>\n<li><span style=\"font-weight: 400;\">It is a species <\/span><b>whose members\u2019 health signals<\/b><span style=\"font-weight: 400;\"> the <\/span><b>condition of the ecosystem<\/b><span style=\"font-weight: 400;\"> in which they live.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"><strong>Characteristic:<\/strong> They are <\/span><b>among the first to respond to stressors<\/b><span style=\"font-weight: 400;\"> in their environment, such as pollution and disease.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Their response also tends to be more apparent than most other species.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">They can provide <\/span><b>early warnings of ecosystem decline.<\/b><\/li>\n<li><span style=\"font-weight: 400;\">These species <\/span><b>tend to occupy a fixed territory<\/b><span style=\"font-weight: 400;\"> and live long enough to accumulate toxins.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">They also have <\/span><b>physiologies that amplify the effects of environmental<\/b><span style=\"font-weight: 400;\"> change. Thus, when something goes wrong in their habitat, they show it first.<\/span><\/li>\n<li aria-level=\"1\"><b>Examples<\/b><\/li>\n<\/ul>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Frog: <\/b><span style=\"font-weight: 400;\">Their <\/span><b>skin is permeable<\/b><span style=\"font-weight: 400;\"> and absorbs whatever enters the water or soil around them, making them very <\/span><b>sensitive to pesticides and pathogens.<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Canaries in coal mines<\/b><span style=\"font-weight: 400;\"> worked on the same principle: the bird\u2019s faster metabolism made it succumb to carbon monoxide before human miners could notice anything.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Honeybees: Researchers used this <\/b><span style=\"font-weight: 400;\">to track agricultural chemical loads.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Polar bears<\/b><span style=\"font-weight: 400;\"> are observed to <\/span><b>monitor Arctic contaminant accumulation<\/b><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><b>Source: <\/b><strong><a href=\"https:\/\/www.thehindu.com\/sci-tech\/science\/what-are-sentinel-species\/article70853746.ece\" target=\"_blank\" rel=\"nofollow noopener\">TH<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sentinel Species is a species whose members\u2019 health signals the condition of the ecosystem in which they live. Read more about Sentinel Species, Meaning, Characteristic, Examples, Latest News.<\/p>\n","protected":false},"author":24,"featured_media":98077,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[21,6830,22,23],"class_list":{"0":"post-98011","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"tag-prelims-pointers","9":"tag-sentinel-species","10":"tag-upsc-current-affairs","11":"tag-upsc-prelims-current-affairs","12":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/98011","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=98011"}],"version-history":[{"count":4,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/98011\/revisions"}],"predecessor-version":[{"id":98092,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/98011\/revisions\/98092"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/98077"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=98011"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=98011"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=98011"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}