<h2>Overview</h2>
<p>The <span class="key-term" data-definition="Convention on the Conservation of Migratory Species of Wild Animals — a 1979 UN‑environment treaty that obliges Parties to protect migratory animals and their habitats across borders (GS3: Environment)">CMS</span> is hosting its 15th <span class="key-term" data-definition="Conference of the Parties — the principal decision‑making body of a UN treaty that meets every three years to set priorities, budgets and species listings (GS3: Environment)">COP</span> in <strong>Campo Grande, Brazil</strong> from <strong>23–29 March 2026</strong>. The theme, “Connecting Nature to sustain life,” underscores the need for trans‑boundary cooperation in safeguarding migratory fauna.</p>
<h3>Key Developments (COP15 Highlights)</h3>
<ul>
<li>CMS now has <strong>133 Parties</strong>, reflecting broad global commitment.</li>
<li>The interim report released ahead of COP15 warns that <strong>49 % of listed migratory species are declining</strong> and <strong>24 % face extinction</strong>.</li>
<li>India’s role: after hosting COP13 in 2020, India holds the CMS Presidency (2023‑2025) and continues to push for stricter protection of its migratory fauna.</li>
<li>New scientific data on habitat loss, climate change and disease (e.g., H5N1) were highlighted as major threats.</li>
</ul>
<h3>Important Facts about CMS Appendices</h3>
<ul>
<li>CMS maintains two appendices. A species may appear in <strong>both</strong> Appendix I and Appendix II.</li>
<li><span class="key-term" data-definition="Appendix I — lists migratory species assessed as Extinct in the Wild, Critically Endangered or Endangered on the IUCN Red List; mandates strict protection and trans‑boundary action (GS3: Environment)">Appendix I</span> currently contains <strong>188 species</strong> (28 terrestrial mammals, 23 aquatic mammals, 103 birds, 8 reptiles, 26 fish). Parties must ensure strict protection, habitat restoration and mitigation of migration barriers.</li>
<li><span class="key-term" data-definition="Appendix II — lists migratory species with an unfavourable conservation status (VU, NT, EN, CR, EW) that require international agreements for their management (GS3: Environment)">Appendix II</span> covers species needing coordinated agreements but not necessarily the highest threat level.</li>
<li>Indian species in Appendix I include <strong>Great Indian Bustard, Asian Elephant, Bengal Florican, Siberian Crane, Hawksbill, Olive‑Ridley and Leatherback Sea Turtles</strong>.</li>
</ul>
<h3>Recent IUCN Red‑List Shifts</h3>
<p>The interim report notes that <strong>26 species</strong> moved to a higher extinction risk category, 18 of which are migratory shorebirds. Notable upgrades:</p>
<ul>
<li><span class="key-term" data-definition="Swan Goose (Anser cygnoid) — a migratory waterfowl whose status shifted from Vulnerable to Endangered due to habitat loss and climate change (GS3: Environment)">Swan Goose</span>: VU → EN</li>
<li>White‑winged Duck (EN → CR)</li>
<li>Blue Swallow (VU → EN)</li>
<li>Great Bustard (VU → EN)</li>
<li>Narrow Sawfish (EN → CR)</li>
</ul>
<p>Threats highlighted include over‑exploitation, habitat degradation, infrastructure development and the spread of <span class="key-term" data-definition="H5N1 (Highly Pathogenic Avian Influenza) — a deadly bird flu virus affecting a wide range of avian and mammalian hosts, causing massive mortality across continents (GS3: Environment)">H5N1</span> across multiple continents.</p>
<h3>UPSC Relevance</h3>
<p>Understanding CMS is essential for GS III (Environment) and GS II (International Relations). Aspirants should be able to:</p>
<ul>
<li>Explain the legal nature of CMS and its linkage to the UN‑environment system.</li>
<li>Distinguish between Appendix I and Appendix II criteria and the implications for national policy.</li>
<li>Identify Indian migratory species under CMS protection and relate them to domestic wildlife laws (e.g., Wildlife Protection Act, 1972).</li>
<li>Analyse the impact of emerging threats such as disease (H5N1) and climate‑induced habitat loss on migratory corridors.</li>
</ul>
<h3>Way Forward</h3>
<p>To curb the alarming decline, the following steps are recommended:</p>
<ul>
<li>Strengthen trans‑boundary habitat corridors through joint India‑neighbor agreements.</li>
<li>Integrate CMS priorities into national biodiversity action plans and the <span class="key-term" data-definition="National Biodiversity Action Plan — a strategic framework for conserving biodiversity, aligning with international treaties like CMS (GS3: Environment)">NBAP</span>.</li>
<li>Enhance surveillance for zoonotic diseases (e.g., H5N1) along migratory routes.</li>
<li>Mobilise funding for community‑based conservation of key species such as the Great Indian Bustard and Olive‑Ridley turtles.</li>
</ul>
<p>Effective implementation will require coordinated action among central and state governments, research institutions, NGOs and the international community.</p>
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