wildfire smoke bird impacts
Credit: Gary Robertson/Flickr

Birds fall silent as wildfire smoke clouds their world

Wildfire smoke not only endangers human health but also disrupts bird activity, according to a new study showing a significant decrease in bird sounds during smoky conditions.

Naveena Sadasivam reports for Grist.


In short:

  • Wildfire smoke, beyond its impact on human lungs, affects birds, leading to reduced activity during smoky days.
  • A study using acoustic sensors in Washington state found a 15% drop in bird sound activity during the 2020 wildfire season.
  • The research highlights the broader ecological impacts of wildfires, which are expected to worsen with climate change.

Key quote:

“During the window in which our sites were impacted by smoke, we did see the biodiversity index and the acoustic complexity index decline, and it stayed reduced after the event.”

— Olivia Sanderfoot, a lead author of the study and postdoctoral fellow at UCLA

Why this matters:

Understanding the impact of wildfire smoke on birds is crucial for biodiversity conservation, as worsening wildfires pose an increasing threat to both human and ecological health.

Read more on birds as harbingers of environmental harm: Winged Warnings: Built for survival, birds in trouble from pole to pole.

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