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Arctic Waders Face Climate Crisis Timing Crunch
18 Jun
Summary
- Spring migrant waders are passing through Britain en route to Arctic breeding grounds.
- Climate change causes Arctic wetlands to dry out and habitats to change.
- Warmer springs disrupt insect peaks, impacting wader chick survival.
As spring progresses, waders are migrating through Britain towards their Arctic breeding grounds after wintering in sub-Saharan Africa. This year has seen a good return of common species, alongside scarcer ones such as wood sandpipers and Temminck's stints, which typically nest in Scandinavia and Siberia.
However, these high-latitude breeders are increasingly affected by extreme climate change impacts. Rising temperatures are causing vital wetland habitats like bogs to dry out and altering forest cover. Migrant waders rely on the long daylight hours and abundant insects of late May and June for successful breeding.
This finely tuned cycle is now under threat. Warmer winters and springs mean that the peak insect abundance, crucial for raising chicks, may now pass before the birds reach their destinations. This temporal mismatch poses a significant risk to the breeding success of these species.
