African–Eurasian flyway

African–Eurasian flyway
Name	African–Eurasian flyway
Region	Africa; Europe; Asia; Atlantic Ocean; Mediterranean Sea
Length	hundreds to thousands of kilometres
Primary users	waterbirds; waders; seabirds; raptors; passerines

African–Eurasian flyway The African–Eurasian flyway connects avian populations between Iceland, Norway, United Kingdom, Ireland, Spain, Portugal, France, Belgium, Netherlands, Germany, Denmark, Sweden, Finland, Estonia, Latvia, Lithuania, Poland, Czech Republic, Slovakia, Hungary, Austria, Switzerland, Italy, Greece, Malta, Cyprus, Turkey, Cyprus (country), Israel, Lebanon, Syria, Jordan, Egypt, Libya, Tunisia, Algeria, Morocco, Western Sahara, Mauritania, Senegal, Gambia, Guinea-Bissau, Guinea, Sierra Leone, Liberia, Ivory Coast, Ghana, Togo, Benin, Nigeria, Cameroon, Central African Republic, Chad, Sudan, South Sudan, Eritrea, Djibouti, Somalia, Ethiopia, Kenya, Uganda, Rwanda, Burundi, Democratic Republic of the Congo, Angola, Zambia, Malawi, Mozambique, Zimbabwe, Botswana, Namibia, South Africa and Madagascar across seasonal cycles, linking staging, breeding, wintering, and moulting sites. Its role is central to conservation frameworks established by Ramsar Convention, Convention on Migratory Species, Agreement on the Conservation of African-Eurasian Migratory Waterbirds, European Union, African Union, United Nations Environment Programme, and nongovernmental actors such as BirdLife International, Royal Society for the Protection of Birds, Wetlands International, International Union for Conservation of Nature, and World Wildlife Fund.

Overview

The flyway encompasses networks of routes used by species including Barnacle Goose, Whooper Swan, Greylag Goose, Pink-footed Goose, Common Crane, Eurasian Spoonbill, White Stork, Black Stork, Greater Flamingo, Lesser Flamingo, Northern Pintail, Eurasian Teal, Common Shelduck, Eurasian Oystercatcher, Bar-tailed Godwit, Sanderling, Dunlin (bird), Curlew Sandpiper, Red Knot, Ruff (bird), Common Redshank, Spotted Redshank, Western Marsh Harrier, Pallid Harrier, Montagu's Harrier, Osprey (fish eagle), Peregrine Falcon, Eurasian Hobby, Common Swift, Barn Swallow, Red-backed Shrike, Common Nightingale, European Robin, Willow Warbler, Wood Warbler, Meadow Pipit, Yellow Wagtail, White Wagtail, Common Starling, House Sparrow, European Goldfinch, Eurasian Siskin, Common Chaffinch, European Greenfinch, Common Linnet, European Serin, and Common Blackbird, demonstrating taxonomic breadth from Anatidae to Passeridae.

Geography and route

Major corridors traverse the North Sea, Baltic Sea, Mediterranean Sea, Black Sea, Caspian Sea, Red Sea, and Gulf of Aden, with overland links through the Iberian Peninsula, Balkan Peninsula, Anatolia, Levant, Horn of Africa, and Sahel. Key stopovers include Wadden Sea, Camargue, Doñana National Park, Sierra de la Plata, Po Delta, Venice Lagoon, Suez Canal region, Nile Delta, Lake Nasser, Lake Chad, Okavango Delta, Lesser Kalahari, Great Rift Valley, Lake Victoria, Lake Tanganyika, Ebro Delta, Côte d'Opale, Morecambe Bay, and Black Sea Biosphere Reserves. Flyway connectivity links to long-distance routes such as those across the Atlantic Ocean, Central Asian Flyway, and East Asian–Australasian Flyway at overlapping nodes.

Migratory species and biodiversity

The flyway supports millions of individuals from families including Anatidae, Scolopacidae, Charadriidae, Recurvirostridae, Laridae, Ardeidae, Ciconiidae, Threskiornithidae, Accipitridae, Falconidae, Apodidae, Hirundinidae, and Passeridae. Notable populations include the Lesser White-fronted Goose wintering in Iraq, the Common Crane populations staging in Germany and Spain, and the Eurasian Spoonbill aggregations in Netherlands and France. Species of global conservation concern present along the flyway include those listed by IUCN Red List such as Spoon-billed Sandpiper, Sociable Lapwing, Slender-billed Curlew, Marsh Sandpiper, and European Turtle Dove. Biodiversity hotspots intersecting the flyway include Mediterranean Basin, Sahel savanna, East African Rift, and Cape Floristic Region.

Ecology and habitat types

Habitats span coastal wetlands, estuaries, salt marshes, freshwater marshes, floodplains, deltas, inland lakes, riverine corridors, agricultural landscapes, montane meadows, boreal tundra, urban parks, and offshore marine zones such as continental shelves, upwelling zones, and pelagic feeding grounds. Ecosystem processes involve nutrient cycling in sites like Wadden Sea, primary production in Mediterranean Sea upwelling, intertidal sediment dynamics at Banc d'Arguin, and seasonal water flow regulated by river systems including the Nile, Danube, Volga, Dnieper, Tigris–Euphrates river system, and Zambezi. Habitat networks support life-history stages including breeding in Arctic tundra and temperate wetlands, moulting at protected pools, and overwintering in sub-Saharan Africa coastal lagoons.

Threats and conservation measures

Threats include habitat loss from drainage and reclamation in areas like Camargue and Doñana National Park, pollution episodes such as Deepwater Horizon-scale oil spills in marine zones, unsustainable hunting in parts of the Middle East and North Africa, illegal trade linked to routes through Istanbul, Cairo, and Addis Ababa, climate-driven phenological shifts documented in Intergovernmental Panel on Climate Change assessments, hydrological alteration from projects like Aswan High Dam and reservoirs on the Volga, invasive species introductions exemplified by Phragmites australis expansion, and disturbance from tourism at sites such as Camargue and Wadden Sea. Conservation actions driven by Ramsar Convention, AEWA, European Commission, UNEP, BirdLife International, RSPB, Wetlands International, and national agencies include protected area designation (e.g., Natura 2000), hunting regulations in Morocco and Spain, habitat restoration in the Ebro Delta, water management reforms affecting the Nile Delta, captive-breeding and reintroduction programs undertaken in United Kingdom and Germany, and community-based stewardship projects in Senegal and Kenya.

Research, monitoring, and management

Research employs satellite telemetry developed at institutions like Max Planck Society, Zoological Society of London, University of Cambridge, University of Oxford, CNRS, University of Barcelona, University of Cape Town, Kenya Wildlife Service, and Ethiopian Wildlife Conservation Authority. Monitoring networks include International Waterbird Census, EURING, European Bird Census Council, African Bird Club, Global Flyway Network, and coordinated ringing efforts in Heligoland, Skokholm, Shetland Islands, and Canary Islands. Management tools feature flyway-scale population models, demographic studies published in journals such as Journal of Avian Biology, Ibis (journal), Bird Conservation International, and Oikos (journal), and adaptive policy implementation supported by datasets curated at GBIF and eBird platforms.

International agreements and policies

Governance integrates multilateral instruments including Ramsar Convention, Agreement on the Conservation of African-Eurasian Migratory Waterbirds, Convention on Migratory Species, European Union Birds Directive, and regional frameworks under the African Union and Council of Europe. Partnerships involve BirdLife International, Wetlands International, UNEP/MAP, Secretariat of the Convention on Biological Diversity, Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, and bilateral memoranda between states such as Spain–Morocco and Egypt–Sudan for shared wetland management. International funding and capacity-building arise from donors like the European Commission, Global Environment Facility, World Bank, Agence Française de Développement, and philanthropic foundations including Howard Hughes Medical Institute and Wildlife Conservation Society.

Category:Flyways