The Convention on the Conservation of Migratory Species of Wild Animals (CMS), also known as the Bonn Convention, is a 1979 environmental treaty concluded under the auspices of the United Nations Environment Programme (UNEP) and entered into force on 1 November 1983. It is the only global convention dedicated exclusively to the conservation of migratory species, their habitats, and migration routes across national boundaries. The Conference of the Parties (COP) is the treaty's supreme decision-making body, convening triennially under Article VII of the Convention to review implementation, amend the appendices, and adopt resolutions. The 13th meeting of this body, CMS COP13, was held in Gandhinagar, Gujarat, India, from 17 to 22 February 2020 — the first time India hosted the conference, in its capacity as a Party since 1983.
The procedural architecture of any CMS COP follows the framework laid down in Articles VII and XI. Parties submit proposals to amend Appendix I (species threatened with extinction) and Appendix II (species with unfavourable conservation status requiring international cooperative agreements) at least 150 days before the session, per Article XI(2). The COP deliberates these listing proposals, adopts them by a two-thirds majority of Parties present and voting, and issues resolutions and decisions guiding the Secretariat's intersessional work. COP13 was preceded by the 48th meeting of the Standing Committee and was chaired on behalf of the host government, with the Indian Ministry of Environment, Forest and Climate Change leading the national delegation. The conference theme was "Migratory species connect the planet and together we welcome them home," and its logo was inspired by the Kolam, a traditional South Indian decorative motif symbolising the interconnectedness of life.
COP13 added ten new species to the CMS appendices, the largest number listed at a single COP at that time. The Asian elephant, the great Indian bustard, and the Bengal florican — three species proposed by India — were added to Appendix I. The jaguar, the urial (a wild sheep), the little bustard, the Antipodean albatross, the oceanic whitetip shark, the smooth hammerhead shark, and the tope shark were also listed across the appendices. The conference adopted the Gandhinagar Declaration, which called for migratory species and the concept of "ecological connectivity" to be integrated into the Post-2020 Global Biodiversity Framework then being negotiated under the Convention on Biological Diversity. COP13 further endorsed the first-ever CMS report on the status of migratory species, work programmes on aquatic wild meat, marine debris, and the impacts of linear infrastructure on wildlife corridors.
The host government and Secretariat used Gandhinagar to advance several India-specific and regional priorities. India announced the launch of conservation efforts for species such as the dugong, the great Indian bustard, and migratory birds along the Central Asian Flyway, for which India had earlier proposed an action plan. Prime Minister Narendra Modi addressed the inaugural session, and the conference saw India assume the presidency of the COP for the subsequent triennium until COP14, which was held in Samarkand, Uzbekistan, in 2024. The Central Asian Flyway initiative, the marine turtle and dugong agreements under CMS, and the focus on transboundary corridors anchored India's stewardship role during this presidency period.
CMS COP13 should be distinguished from adjacent multilateral environmental fora. Unlike CITES (the Convention on International Trade in Endangered Species), which regulates cross-border commercial trade in specimens, CMS governs the conservation of species during their migration and does not principally address trade. It is also distinct from the Ramsar Convention on wetlands and from the Convention on Biological Diversity (CBD), although the Gandhinagar Declaration explicitly sought to embed migratory connectivity within the CBD's Post-2020 framework. A further distinction lies in the CMS structure of daughter agreements and Memoranda of Understanding — such as AEWA (African-Eurasian Waterbird Agreement) and the various MOUs on sharks, raptors, and dugongs — which create binding or non-binding instruments under the CMS umbrella that a COP listing alone does not establish.
A recurring controversy at CMS COPs, including COP13, concerns the limited enforcement capacity of Appendix listings: unlike CITES trade controls, CMS Appendix I and II listings impose obligations of cooperation and habitat protection that depend heavily on national implementation and voluntary range-state agreements, with no sanction mechanism. Edge cases also arise where range states of a listed species are non-Parties — the United States, China, and Russia are not Parties to CMS — limiting the reach of decisions affecting species whose ranges traverse those states. The COP13 listings of commercially exploited shark species drew particular attention to this gap, given the overlap with fisheries jurisdictions governed by regional fisheries management organisations outside the CMS framework.
For the working practitioner — a desk officer, a UPSC aspirant preparing General Studies Paper III, or an environmental diplomat — CMS COP13 Gandhinagar is significant as a marker of India's growing profile in global biodiversity governance and as a case study in how migratory-species conservation intersects with infrastructure, fisheries, and the biodiversity framework. The Gandhinagar Declaration's emphasis on ecological connectivity foreshadowed the connectivity provisions later reflected in the Kunming-Montreal Global Biodiversity Framework adopted in December 2022. Understanding the species listed, the Central Asian Flyway commitment, and the institutional relationship between CMS, CITES, and the CBD equips the practitioner to situate national wildlife policy within the broader architecture of international environmental law.
Example
India hosted CMS COP13 in Gandhinagar from 17 to 22 February 2020, where Parties added the Asian elephant, great Indian bustard, and Bengal florican to Appendix I and adopted the Gandhinagar Declaration.
Frequently asked questions
The Gandhinagar Declaration called for migratory species and the principle of ecological connectivity to be integrated into the Post-2020 Global Biodiversity Framework being negotiated under the Convention on Biological Diversity. It linked migratory-species conservation to the broader biodiversity agenda that later produced the Kunming-Montreal framework in 2022.
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