{"id":292930,"date":"2025-06-12T16:01:59","date_gmt":"2025-06-12T15:01:59","guid":{"rendered":"https:\/\/www.iucn.nl\/?p=292930"},"modified":"2026-01-07T10:12:05","modified_gmt":"2026-01-07T09:12:05","slug":"targeted-management-of-invasive-species-could-reduce-eu-species-extinction-risk-by-16","status":"publish","type":"post","link":"https:\/\/www.iucn.nl\/en\/news\/targeted-management-of-invasive-species-could-reduce-eu-species-extinction-risk-by-16\/","title":{"rendered":"Targeted management of invasive species could reduce EU species extinction risk by 16%"},"content":{"rendered":"<div class=\"block block-container small-12 large-offset-1 large-10\">\n<h4 class=\"wp-block-heading\"><strong>Gland, Switzerland (IUCN) \u2013 Experts from the International Union for Conservation of Nature (IUCN) have analysed how targeted management of invasive alien species (IAS) can reduce extinction risks for threatened species across the European Union (EU), in line with the EU Biodiversity Strategy for 2030.<\/strong><\/h4>\n<\/div>\n\n<div class=\"block block-container small-12 large-offset-1 large-10\">\n<p class=\"has-cyan-bluish-gray-color has-text-color has-link-color wp-elements-76ec185312b21bd63b7b38f973ce2926\"><em>Photo: <em>Invasive species<\/em> in Europe, the red swamp crayfish (<em>Procambarus clarkii<\/em>) \u00a9 <a href=\"https:\/\/www.canva.com\/design\/DAFGHj95iSk\/xBCI9Ta3tnqRK5taUBMyKA\/edit#\">Diogopm<\/a> from <a href=\"https:\/\/www.canva.com\/design\/DAFGHj95iSk\/xBCI9Ta3tnqRK5taUBMyKA\/edit#\">Getty Images<\/a><\/em><\/p>\n<\/div>\n\n<div class=\"block block-container small-12 large-offset-1 large-10\">\n<p>Published in the open-access journal NeoBiota, and funded by the European Commission, a new study identifies where and how targeted action against IAS (species that have been introduced to areas outside their natural range, either intentionally or unintentionally by human activities, and cause negative impacts) can have the highest conservation impact.<span class=\"footnote_referrer\"><a role=\"button\" tabindex=\"0\" onclick=\"footnote_moveToReference_292930_1('footnote_plugin_reference_292930_1_1');\" onkeypress=\"footnote_moveToReference_292930_1('footnote_plugin_reference_292930_1_1');\" ><sup id=\"footnote_plugin_tooltip_292930_1_1\" class=\"footnote_plugin_tooltip_text\">[1]<\/sup><\/a><span id=\"footnote_plugin_tooltip_text_292930_1_1\" class=\"footnote_tooltip\"><a href=\"https:\/\/neobiota.pensoft.net\/article\/148323\/\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"footnote_url_wrap\">https:\/\/neobiota.pensoft.net\/article\/148323\/<\/span><\/a><\/span><\/span><script type=\"text\/javascript\"> jQuery('#footnote_plugin_tooltip_292930_1_1').tooltip({ tip: '#footnote_plugin_tooltip_text_292930_1_1', tipClass: 'footnote_tooltip', effect: 'fade', predelay: 0, fadeInSpeed: 200, delay: 400, fadeOutSpeed: 200, position: 'top center', relative: true, offset: [-7, 0], });<\/script><\/p>\n<\/div>\n\n<div class=\"block block-container small-12 large-offset-1 large-10\">\n<p>The authors applied the IUCN <a href=\"https:\/\/www.iucn.org\/resources\/conservation-tool\/species-threat-abatement-and-restoration-star-metric\">Species Threat Abatement and Restoration (STAR) metric<\/a>&nbsp;to measure opportunities for species threat abatement caused by IAS.&nbsp; <strong>The research estimates that fully removing threats from IAS could reduce extinction risk for EU species by up to 16%.<\/strong><\/p>\n<\/div>\n\n<div class=\"block block-container small-12 large-offset-1 large-10\">\n<p>Across the EU, 3,759 species (excluding marine animals) have been assessed as Near Threatened or Threatened with extinction, of which 579 (15%) are documented to be threatened by IAS (IUCN 2024).<\/p>\n<\/div>\n\n<div class=\"block block-container small-12 large-offset-1 large-10\">\n<p>The Macaronesian Islands, namely the Canary Islands (Spain), Madeira (Portugal), and the Azores (Portugal), present the largest opportunities for reducing species extinction risk. The research calculates this at an over 40% reduction if IAS were eliminated, illustrating how IAS pose a significantly higher threat to islands compared to mainland ecosystems.&nbsp;Islands are particularly vulnerable due to their unique biodiversity, high levels of endemism, and often fragile ecosystems.&nbsp;<\/p>\n<\/div>\n\n<div class=\"block block-container small-12 large-offset-1 large-10\">\n<p><em>&#8220;Given the alarming impact that invasive alien species have on native biodiversity and the economy, it is essential to identify where action can have the greatest effect. In this context, our work presents the first regional application of the Species Threat Abatement and Restoration (STAR) metric, a science-based method that links conservation actions to the reduction of species extinction risk. By applying STAR with data from the EU Red List of Threatened Species, we highlight opportunities for addressing invasive alien species across national and subnational levels in the EU,&#8221; <\/em><strong>said Randall Jim\u00e9nez Q, Senior Conservation Scientist, Science team, IUCN (first author of the research).<\/strong><em><\/em><\/p>\n<\/div>\n\n<div class=\"block block-container small-12 large-offset-1 large-10\">\n<p><em>\u201cMitigating the impacts of invasive alien species offers some of the greatest potential gains for conserving native biodiversity, while also delivering benefits for ecosystem services and local economies,\u201d<\/em> <strong>Boris<\/strong> <strong>Erg, IUCN European Regional Director, said.<\/strong> \u201c<em>This analysis provides decision-makers with guidance on where efforts can achieve the most significant results, supporting progress toward the EU Biodiversity Strategy target of reducing impacts on threatened species from invasive alien species by 50%.\u201d<\/em><\/p>\n<\/div>\n\n<div class=\"block block-container small-12 large-offset-1 large-10\">\n<p>For specific IAS, the greatest opportunities to reduce regional species extinction risk by mitigating threats from IAS come from managing feral goats (12.4%), mouflons (8.1%), rabbits (5.3%) and rats (4.6%).<\/p>\n<\/div>\n\n<div class=\"block block-container small-12 large-offset-1 large-10\">\n<p>Invasive alien species are a major threat to global biodiversity and the total cost of biological invasions across all European Union member states has been estimated at 129.9 billion US dollars between 1960 and 2020. In Europe, measures for IAS management are mainly established through the European Union Biodiversity Strategy 2030, which aims to halve the number of IUCN Red List of Threatened Species at risk from IAS by 2030.<\/p>\n<\/div>\n\n<div class=\"block block-container small-12 large-offset-1 large-10\">\n<p>A 2023 report from the Intergovernmental Panel on Biodiversity and Ecosystem Services (IPBES) found that IAS have been a significant driver in 60% of documented plant and animal extinctions.&nbsp;The report, informed by experts from the IUCN Species Survival Commission (SSC) Invasive Species Specialist Group (ISSG), identified 3,500 invasive species that are severely harming biodiversity and livelihoods. These are increasing rapidly, with a forecast increase of 36% by 2050 \u2013 posing threats to the realisation of the Global Biodiversity Framework.<\/p>\n<\/div>\n\n<div class=\"block block-container small-12 large-offset-1 large-10\">\n<blockquote class=\"wp-block-quote has-text-align-center is-layout-flow wp-block-quote-is-layout-flow\"><div class=\"block block-container small-12 large-offset-1 large-10\">\n<p>This study offers good insights into how the management of invasive alien species can significantly reduce extinction risks of native species across the EU. For the Netherlands, this resonates strongly with national commitments, particularly Action goal 6 of the National Biodiversity Strategy &amp; Action Plan Netherlands 2025-2030, which aims to reduce the introduction of invasive alien species by 50% and minimize their impact. <span class=\"footnote_referrer\"><a role=\"button\" tabindex=\"0\" onclick=\"footnote_moveToReference_292930_1('footnote_plugin_reference_292930_1_2');\" onkeypress=\"footnote_moveToReference_292930_1('footnote_plugin_reference_292930_1_2');\" ><sup id=\"footnote_plugin_tooltip_292930_1_2\" class=\"footnote_plugin_tooltip_text\">[2]<\/sup><\/a><span id=\"footnote_plugin_tooltip_text_292930_1_2\" class=\"footnote_tooltip\">Page 38&nbsp;<a href=\"https:\/\/eur04.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fopen.overheid.nl%2Fdocumenten%2F8d0cd535-0ff3-455a-bb4f-5ef6c41dea54%2Ffile&amp;data=05%7C02%7Cdaphne.vandenheuvel%40iucn.nl%7C648af7e3345e4e0e2d0108dda8f471d5%7Cac192bb67089415fa6f6caa448d23eb2%7C0%7C0%7C638852490012289464%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&amp;sdata=4377LlMNakyS9%2BXoc3rKpuMNdmEr97MHraSA2szazbc%3D&amp;reserved=0\">Nationaal Biodiversiteit Strategie &amp; Actieplan Nederland 2025-2030<\/a><\/span><\/span><script type=\"text\/javascript\"> jQuery('#footnote_plugin_tooltip_292930_1_2').tooltip({ tip: '#footnote_plugin_tooltip_text_292930_1_2', tipClass: 'footnote_tooltip', effect: 'fade', predelay: 0, fadeInSpeed: 200, delay: 400, fadeOutSpeed: 200, position: 'top center', relative: true, offset: [-7, 0], });<\/script>&nbsp;<\/p>\n<\/div>\n\n<div class=\"block block-container small-12 large-offset-1 large-10\">\n<p>It is crucial that the National Plan to combat invasive alien species&nbsp;is finalized this year and sufficient resources are allocated, to step up our national efforts, as suggested in this research. <span class=\"footnote_referrer\"><a role=\"button\" tabindex=\"0\" onclick=\"footnote_moveToReference_292930_1('footnote_plugin_reference_292930_1_3');\" onkeypress=\"footnote_moveToReference_292930_1('footnote_plugin_reference_292930_1_3');\" ><sup id=\"footnote_plugin_tooltip_292930_1_3\" class=\"footnote_plugin_tooltip_text\">[3]<\/sup><\/a><span id=\"footnote_plugin_tooltip_text_292930_1_3\" class=\"footnote_tooltip\"><a href=\"https:\/\/eur04.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fwww.rijksoverheid.nl%2Fdocumenten%2Frapporten%2F2024%2F12%2F05%2Fbijlage-contouren-landelijk-aanvalsplan-invasieve-exoten&amp;data=05%7C02%7Cdaphne.vandenheuvel%40iucn.nl%7C648af7e3345e4e0e2d0108dda8f471d5%7Cac192bb67089415fa6f6caa448d23eb2%7C0%7C0%7C638852490012301775%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&amp;sdata=54KO11qYccPS2shaITgT5bB%2B%2BYGSxfLBgRWADj2650Y%3D&amp;reserved=0\">Contouren van een landelijk aanvalsplan invasieve exoten | Rapport | Rijksoverheid.nl<\/a><\/span><\/span><script type=\"text\/javascript\"> jQuery('#footnote_plugin_tooltip_292930_1_3').tooltip({ tip: '#footnote_plugin_tooltip_text_292930_1_3', tipClass: 'footnote_tooltip', effect: 'fade', predelay: 0, fadeInSpeed: 200, delay: 400, fadeOutSpeed: 200, position: 'top center', relative: true, offset: [-7, 0], });<\/script><\/p>\n<\/div><cite>Sander van Andel, Senior Expert Nature Conservation IUCN NL<\/cite><\/blockquote>\n<\/div>\n\n\n<div class=\"background background-preset-primary\" id=\"block_45b9626a25c02e514e77ceea5e8b6662\">\n             <div class=\"dark custom-padding-top\">\n    \n\n\n<div class=\"smallteam-members__name12 large-offset-1 large-10\">\n\t<div id=\"team-members-block_e9ae2adcc58e345b24dc0468621be1bd\" class=\"team-members team-members-block block\">\n\t\t<span class=\"anchor-id\" id=\"\"><\/span>\n\n\t\t\t\t\t<h2 class=\"team-members__title\">\n\t\t\t\t<div>More information<\/div>\n\t\t\t<\/h2>\n\t\t\n\t\t<div class=\"team-members__body small-12 grid-x\">\n\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"team-members__item grid-x small-12 medium-6\">\n\n\t\t\t\t\t\t<div class=\"team-members__image cell shrink\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.iucn.nl\/en\/sander-van-andel-senior-expert-nature-conservation\/\" target=\"\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"team-members__image-wrapper lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/www.iucn.nl\/app\/uploads\/2023\/01\/15Sander-IUCN-040722-scaled.jpg&#039;)\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" data-src=\"https:\/\/www.iucn.nl\/app\/uploads\/2023\/01\/15Sander-IUCN-040722-scaled.jpg\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 2560px; --smush-placeholder-aspect-ratio: 2560\/2560;\" \/>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t<div class=\"team-members__info cell auto\">\n\t\t\t\t\t\t\t<div class=\"team-members__info-wrapper\">\n\t\t\t\t\t\t\t\t<div class=\"team-members__details\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.iucn.nl\/en\/sander-van-andel-senior-expert-nature-conservation\/\" target=\"\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"team-members__name\">Sander \n\t\t\t\t\t\t\t\t\t\t\t\tvan Andel<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"team-members__jobtitle\">Senior Expert Nature Conservation<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"team-members__email\">Email:\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"mailto:sander.vanandel@iucn.nl\">sander.vanandel@iucn.nl<\/a>\n\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"team-members__readmore\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.iucn.nl\/en\/sander-van-andel-senior-expert-nature-conservation\/\" target=\"\">Full profile<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"team-members__socials\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.linkedin.com\/in\/sander-van-andel-a6387728\/?originalSubdomain=nl\" class=\"team-members__socials-icon ico-linkedin\" aria-label=\"Linkedin profile of Sander  van Andel\" target=\"_blank\">\n\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" data-src=\"https:\/\/www.iucn.nl\/app\/themes\/gopublic-motor-theme-child\/src\/images\/linkedin-icon.svg\" alt=\"Linkedin logo\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\">\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t<\/div>\n\t<\/div>\n<\/div>\n\n\n\n\n    <\/div>\n<\/div>\n\n<div class=\"speaker-mute footnotes_reference_container\"> <div class=\"footnote_container_prepare\"><h2><span role=\"button\" tabindex=\"0\" class=\"footnote_reference_container_label pointer\" onclick=\"footnote_expand_collapse_reference_container_292930_1();\">Index<\/span><span role=\"button\" tabindex=\"0\" class=\"footnote_reference_container_collapse_button\" style=\"display: none;\" onclick=\"footnote_expand_collapse_reference_container_292930_1();\">[<a id=\"footnote_reference_container_collapse_button_292930_1\">+<\/a>]<\/span><\/h2><\/div> <div id=\"footnote_references_container_292930_1\" style=\"\"><table class=\"footnotes_table footnote-reference-container\"><caption class=\"accessibility\">Index<\/caption> <tbody> \r\n\r\n<tr class=\"footnotes_plugin_reference_row\"> <th scope=\"row\" class=\"footnote_plugin_index_combi pointer\"  onclick=\"footnote_moveToAnchor_292930_1('footnote_plugin_tooltip_292930_1_1');\"><a id=\"footnote_plugin_reference_292930_1_1\" class=\"footnote_backlink\"><span class=\"footnote_index_arrow\">&#8593;<\/span>1<\/a><\/th> <td class=\"footnote_plugin_text\"><a href=\"https:\/\/neobiota.pensoft.net\/article\/148323\/\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"footnote_url_wrap\">https:\/\/neobiota.pensoft.net\/article\/148323\/<\/span><\/a><\/td><\/tr>\r\n\r\n<tr class=\"footnotes_plugin_reference_row\"> <th scope=\"row\" class=\"footnote_plugin_index_combi pointer\"  onclick=\"footnote_moveToAnchor_292930_1('footnote_plugin_tooltip_292930_1_2');\"><a id=\"footnote_plugin_reference_292930_1_2\" class=\"footnote_backlink\"><span class=\"footnote_index_arrow\">&#8593;<\/span>2<\/a><\/th> <td class=\"footnote_plugin_text\">Page 38&nbsp;<a href=\"https:\/\/eur04.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fopen.overheid.nl%2Fdocumenten%2F8d0cd535-0ff3-455a-bb4f-5ef6c41dea54%2Ffile&amp;data=05%7C02%7Cdaphne.vandenheuvel%40iucn.nl%7C648af7e3345e4e0e2d0108dda8f471d5%7Cac192bb67089415fa6f6caa448d23eb2%7C0%7C0%7C638852490012289464%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&amp;sdata=4377LlMNakyS9%2BXoc3rKpuMNdmEr97MHraSA2szazbc%3D&amp;reserved=0\">Nationaal Biodiversiteit Strategie &amp; Actieplan Nederland 2025-2030<\/a><\/td><\/tr>\r\n\r\n<tr class=\"footnotes_plugin_reference_row\"> <th scope=\"row\" class=\"footnote_plugin_index_combi pointer\"  onclick=\"footnote_moveToAnchor_292930_1('footnote_plugin_tooltip_292930_1_3');\"><a id=\"footnote_plugin_reference_292930_1_3\" class=\"footnote_backlink\"><span class=\"footnote_index_arrow\">&#8593;<\/span>3<\/a><\/th> <td class=\"footnote_plugin_text\"><a href=\"https:\/\/eur04.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fwww.rijksoverheid.nl%2Fdocumenten%2Frapporten%2F2024%2F12%2F05%2Fbijlage-contouren-landelijk-aanvalsplan-invasieve-exoten&amp;data=05%7C02%7Cdaphne.vandenheuvel%40iucn.nl%7C648af7e3345e4e0e2d0108dda8f471d5%7Cac192bb67089415fa6f6caa448d23eb2%7C0%7C0%7C638852490012301775%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&amp;sdata=54KO11qYccPS2shaITgT5bB%2B%2BYGSxfLBgRWADj2650Y%3D&amp;reserved=0\">Contouren van een landelijk aanvalsplan invasieve exoten | Rapport | Rijksoverheid.nl<\/a><\/td><\/tr>\r\n\r\n <\/tbody> <\/table> <\/div><\/div><script type=\"text\/javascript\"> function footnote_expand_reference_container_292930_1() { jQuery('#footnote_references_container_292930_1').show(); 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