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ClimateQuiet 12d · day 13

Global review finds sea-level rise poses severe threat to world's shorebirds

A systematic review of 37 studies shows 78–89% document negative impacts on coastal habitat and shorebird populations.

newest coverage 11d agosummary written 11d ago4 pieces RedditNewswiresGoogle News

What to know

  • A systematic review of 37 global studies found sea-level rise poses predominantly negative impacts on shorebirds, with 78–89% documenting harm to habitat and populations.
  • Coastal squeeze—where rising seas trap intertidal habitat between water and human development—threatens migratory shorebirds that depend on these ecosystems.
  • Significant knowledge gaps remain, particularly in the Global South and during migration periods, limiting current understanding of adaptation options.

University of British Columbia Lead research institution

Global review finds sea-level rise poses severe threat to world's shorebirds
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  1. 1

    Review identifies knowledge gaps in Global South and migratory periods

    Despite increased focus on sea-level rise impacts on shorebirds over two decades, the 37-study analysis revealed considerable knowledge gaps, particularly during migratory periods and throughout the Global South. The researchers emphasized the urgency of research on feasible adaptation and mitigation options.

    “Despite an increased focus on the impacts of SLR on shorebirds over the past two decades, the number of studies remains relatively small (n = 37), and considerable knowledge gaps remain during the migratory period and throughout the Global South.”
    — University of British Columbia research team
  2. background

    Study identifies coastal squeeze as key mechanism threatening shorebird habitat — The review highlighted coastal squeeze—where rising seas trap intertidal habitat between the ocean and inland human development—as a primary threat. The researchers noted that while some coastal wetlands can migrate inland or keep pace with sea level through accretion, acceleration of global sea-level rise may overwhelm these natural adaptation processes.

  3. background

    Systematic review finds sea-level rise threatens shorebirds globally — A first-of-its-kind systematic review of sea-level rise impacts on shorebirds analyzed 37 studies across all stages of the annual cycle. The analysis found that 78% of habitat-level studies and 89% of population- and individual-level studies documented overall negative impacts.