Conservation Strategies for Migratory Shorebird Populations

Migratory shorebirds undertake annual journeys spanning continents, relying on networks of stopover sites to rest and refuel. The rapid loss and degradation of intertidal wetlands, combined with climate change and coastal development, have precipitated widespread population declines. Effective conservation strategies must therefore address the full annual cycle of these species, integrating breeding, staging and wintering habitats into coherent international frameworks. Key approaches include the protection and restoration of critical wetland habitats, the management of trophic interactions to enhance ecosystem functionality, and the design of dynamic reserve networks that can adapt to sea-level rise and shifting ecological conditions. Landscape-scale planning that secures network connectivity along flyways ensures that birds can move freely between sites, while targeted habitat management—such as controlling invasive species, rewilding lost functions and creating artificial roosts—can mitigate local threats. Complementary measures encompass adaptive monitoring programmes, community engagement and policy instruments that span national borders. By combining ecological research with modelling tools and local stewardship, conservation practitioners can safeguard the ecological services that shorebirds provide and stabilise populations before irreversible declines occur.

Research from Nature Portfolio

Recent studies have demonstrated the potential of top-down ecological processes to restore multifunctionality in degraded wetlands by harnessing the predatory role of shorebirds. Manipulative field experiments along invaded saltmarshes revealed that excluding shorebirds leads to unchecked grazer populations, which in turn suppress vegetation and destabilise sediments. Simulating shorebird predation has been shown to accelerate plant recovery and sediment stabilisation, offering a nature-based solution for ecosystem restoration. Further work has highlighted the importance of food availability at temperate staging sites in enabling shorebirds to cope with mismatches between migration timing and Arctic phenology under climate warming. Variations in refuelling rate at key stopovers influence annual survival and breeding success, emphasising the need to safeguard high-quality staging habitats. Foundational analyses of long-term citizen science data have also quantified how declines in vital intertidal flats, particularly in the Yellow Sea region, are directly linked to population crashes in multiple shorebird taxa. These insights underscore the necessity of preserving both trophic interactions and habitat integrity across the full migratory circuit.

Conservation Strategies for Migratory Shorebird Populations publication trend

The graph below shows the total number of articles in conservation strategies for migratory shorebird populations across all publications each year (not limited to Nature Index journals).

Technical terms

Stopover habitat: Any site where migrating birds pause to rest and replenish energy reserves during long-distance journeys.

Trophic cascade: A chain of ecological effects initiated by predators that influence multiple levels of the food web and ecosystem processes.

Flyway connectivity: The degree to which a series of geographically distinct sites are linked to support uninterrupted migration routes.

Refuelling rate: The speed at which birds accumulate energy reserves (fat and protein) at a stopover site.

Bioturbation: The disturbance of sediment by organisms (such as crabs), affecting sediment stability and vegetation establishment.

References

1. Multiple habitat use by declining migratory birds necessitates joined‐up conservation. Ecology and Evolution (2019).
2. Optimal Management of a Multispecies Shorebird Flyway under Sea‐Level Rise. Conservation Biology (2014).
3. Shorebirds-driven trophic cascade helps restore coastal wetland multifunctionality. Nature Communications (2023).
4. Fuelling conditions at staging sites can mitigate Arctic warming effects in a migratory bird. Nature Communications (2018).
5. Rapid population decline in migratory shorebirds relying on Yellow Sea tidal mudflats as stopover sites. Nature Communications (2017).
6. Prioritizing global conservation of migratory birds over their migration network. One Earth (2023).
7. A network approach to prioritize conservation efforts for migratory birds. Conservation Biology (2019).
8. Accelerating declines of North America’s shorebirds signal the need for urgent conservation action. Ornithological Applications (2023).