US EditionNorth America’s 2021 ‘Heat Dome’ Has Caused Catastropic Ecological Damage: Study
The 2021 heatwave caused a 400% surge in wildfires and harmed over 75% of 49 species studied, while some species increased notably, researchers said.
- On March 11, 2026, the study found that over 75 percent of 49 terrestrial and marine species examined were negatively affected, according to Nature Ecology & Evolution.
- A western North America 'heat dome' during the June 25–July 2, 2021 heatwave, fueled by human-induced climate change, exceeded 50C in some areas, researchers say.
- Julia Baum, the lead author and biology professor at the University of Victoria, said, "Basically, any animal that couldn't escape the heat was hard hit by it," with over half the thatched barnacles and 92 percent of Bay mussels dying, and wildfire activity surged nearly 400 percent.
- Researchers recorded stark population swings with sea lettuce expanding beach coverage by 65 percent, some populations falling nearly 99 percent, others rising 89 percent, and moose camera-trap detections returning to pre-heatwave levels.
- Researchers called for a coordinated monitoring network across the province and Canada as cooler areas absorbed 30% more carbon, warmer areas absorbed 75% less, and streamflow rose 40% during the heatwave.
26 Articles
26 Articles
North American heat wave hit wildlife hard, but a few surprising species thrived
Mussels baked by the billions. Insect larvae cooked inside scorched cherries. Baby birds plummeted to their deaths from their overheating nests. But some species did just fine during the 2021 North American heat wave, according to a study published in Nature Ecology & Evolution.
North America’s 2021 ‘heat dome’ has caused catastropic ecological damage: study
Billions of mussels scorched and baby birds dropping from sweltering nests: North America’s 2021 heatwave caused a cascade of ecological damage, some of it catastrophic, some unexpected, a new study showed Wednesday.
InsideNoVA.com
North America 'heat dome' left winners and losers: study
Billions of mussels scorched and baby birds dropping from sweltering nests: North America's 2021 heatwave caused a cascade of ecological damage, some of it catastrophic, some unexpected, a new study showed Wednesday.
Some populations experienced marked declines, but others prospered, showing a new study of the heat wave of the summer of 2021.
A study shows that heat waves have considerable ecological effects, affecting up to 75% of animal species and causing disastrous consequences for ecosystems.
Billions of carbonized mussels, chicks falling from their overheated nests: large heat waves, such as the one known to North America in 2021, cause "cascading" ecological effects that are often disastrous, but sometimes more nuanced, says a scientific study on Wednesday.
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