{"id":56451,"date":"2025-10-09T21:27:40","date_gmt":"2025-10-09T15:57:40","guid":{"rendered":"https:\/\/www.nextias.com\/ca\/?p=56451"},"modified":"2025-10-11T12:23:00","modified_gmt":"2025-10-11T06:53:00","slug":"invasive-alien-species","status":"publish","type":"post","link":"https:\/\/www.nextias.com\/ca\/current-affairs\/09-10-2025\/invasive-alien-species","title":{"rendered":"Invasive Alien Species"},"content":{"rendered":"\n<p><strong>Syllabus: GS3\/Environment&nbsp;<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>In News<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Conservation scientists warn that <strong>invasive alien species<\/strong> are destroying local biodiversity and habitats in India.&nbsp;<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Invasive alien species<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Definition:<\/strong> They are <strong>non-native organisms <\/strong>introduced accidentally or intentionally (e.g., ornamental fish, decorative plants, or for land restoration).&nbsp;<\/li>\n\n\n\n<li>They often <strong>lack natural predators<\/strong> in the new environment, allowing them to multiply unchecked.<\/li>\n\n\n\n<li>They often <strong>spread rapidly, outcompeting native species<\/strong>, harming biodiversity, causing local or global extinctions, and damaging habitats.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Common Examples in India<\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img data-dominant-color=\"f7f7f6\" data-has-transparency=\"false\" loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"908\" src=\"https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/ca\/uploads\/2025\/10\/Invasive-Alien-Species-1024x908.webp\" alt=\"invasive alien species\" class=\"not-transparent wp-image-56462\" style=\"--dominant-color: #f7f7f6; width:444px;height:auto\" srcset=\"https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/ca\/uploads\/2025\/10\/Invasive-Alien-Species-1024x908.webp 1024w, https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/ca\/uploads\/2025\/10\/Invasive-Alien-Species-300x266.webp 300w, https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/ca\/uploads\/2025\/10\/Invasive-Alien-Species-768x681.webp 768w, https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/ca\/uploads\/2025\/10\/Invasive-Alien-Species-1536x1362.webp 1536w, https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/ca\/uploads\/2025\/10\/Invasive-Alien-Species.webp 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Lantana camara:<\/strong> Invades forests, outcompetes native plants, and hinders regeneration.<\/li>\n\n\n\n<li><strong>Parthenium hysterophorus (Congress grass):<\/strong> Spreads over farmland and causes allergic reactions.<\/li>\n\n\n\n<li><strong>Eichhornia crassipes (Water hyacinth):<\/strong> Chokes lakes and rivers, depleting oxygen and affecting fisheries.<\/li>\n\n\n\n<li><strong>African Catfish (Clarias gariepinus):<\/strong> Outcompetes native fish species, threatening aquatic biodiversity.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Control and Management Measures<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Prevention:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Stricter quarantine checks on imports, trade, and shipping.<\/li>\n\n\n\n<li>Ballast water management in ships to prevent marine invasions.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Control Methods:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Biological Control:<\/strong> Introducing natural predators, pathogens, or parasites (e.g., insects for Lantana).<\/li>\n\n\n\n<li><strong>Mechanical Control:<\/strong> Manual removal, cutting, dredging, or uprooting.<\/li>\n\n\n\n<li><strong>Chemical Control:<\/strong> Use of herbicides or pesticides \u2014 applied cautiously to avoid ecological harm.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Eradication &amp; Restoration:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Early detection and rapid response for localized infestations.<\/li>\n\n\n\n<li>Reintroduce native species and restore degraded ecosystems after removal.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><strong>Source: TH<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p><strong>In News<\/strong><\/p>\n<li class=\"ms-5\">Conservation scientists warn that invasive alien species are destroying local biodiversity and habitats in India.\u00a0<\/li>\n<p><\/p>\n<p><strong>Invasive alien species<\/strong><\/p>\n<li class=\"ms-5\">Definition: They are non-native organisms introduced accidentally or intentionally (e.g., ornamental fish, decorative plants, or for land restoration).\u00a0<\/li>\n<li class=\"ms-5\">They often lack natural predators in the new environment, allowing them to multiply unchecked.<\/li>\n<li class=\"ms-5\">They often spread rapidly, outcompeting native species, harming biodiversity, causing local or global extinctions, and damaging habitats.<\/li>\n<p><a href=\"https:\/\/www.nextias.com\/ca\/current-affairs\/09-10-2025\/invasive-alien-species\" class=\"btn btn-primary btn-sm float-end\">Read\u00a0More<\/a><\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-56451","post","type-post","status-publish","format-standard","hentry","category-current-affairs"],"acf":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/56451","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/comments?post=56451"}],"version-history":[{"count":4,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/56451\/revisions"}],"predecessor-version":[{"id":56543,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/56451\/revisions\/56543"}],"wp:attachment":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/media?parent=56451"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/categories?post=56451"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/tags?post=56451"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}