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Air pollution from wildfires impacts ability to observe birds


As smoky air becomes more common during Washington’s wildfire season, many wildlife enthusiasts wonder: What happens to the birds?
Few studies have looked at wildfire smoke impacts on animals, let alone birds. And as Washington and the larger West Coast continue to experience more massive wildfires and smoke-filled air, understanding how birds are affected by smoke and how air pollution may influence our ability to detect birds are important factors for bird conservation.
Researchers from the University of Washington now provide a first look at the probability of observing common birds as air pollution worsens during wildfire seasons. They found that smoke affected the ability to detect more than a third of the bird species studied in Washington state over a four-year period. Sometimes smoke made it harder to observe birds, while other species were actually easier to detect when smoke was present. The results were published June 29 in the journal Ornithological Appli ....

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Pacific Northwest heat wave sets up 'grim' migration for salmon | News


SEATTLE — This is shaping up to be a dire summer for fish and trees.
Temperatures in the Columbia and Snake rivers are already within two degrees of the slaughter zone of 2015, when half the sockeye salmon run was lost because of high water temperatures. An estimated 250,000 sockeye died that year long before reaching their spawning grounds.
The sockeye run is at its peak right now just as temperatures hit record highs across Washington state and in Idaho. Spring and summer chinook and steelhead migrating in the rivers also are at risk.
Salmon are cold-water animals. Temperatures above 62 degrees make them more vulnerable to disease, and as temperatures climb higher, they will stop migrating altogether. ....

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