A Single Earth: Migratory Animals Connect the Planet
Barn Swallow © Ken Billington (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons Migratory animals move across space and time; with their regular and predictable movements, they connect continents, countries, sites and habitats. Connectivity is the keyword of CMS, the only global legal instrument devoted to the conservation of migratory animals. Understanding connectivity allows us to understand what sites and habitats animals need during their migratory journeys and annual cycle.