Tag: northern spotted owls

A meta-analysis of northern spotted owl population data shows that a primary reason for their decline has been the invasion of barred owls from the eastern U.S. Compiling data from...

Throughout the Pacific Northwest, federally threatened northern spotted owls have faced growing competition from invasive barred owls, which have moved into their range. By removing the invaders, researchers found, they...

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An associate professor of landscape and fire ecology at Oregon State University, Meg Krawchuk tries to remain hyper-aware of fire patterns wherever she goes. As a fire ecologist, one of...

By listening to sounds collected from recording devices in the forest, researchers can detect northern spotted owls and invasive barred owls, which can help with monitoring and conservation efforts for...

As barred owls (Strix varia) have moved in and taken over threatened northern spotted owl (Strix occidentalis caurina) territory on the West Coast, management has focused mostly on removing barred...

Northern spotted owls (Strix occidentalis caurina) face plenty of external threats, including habitat loss, deforestation and competition from invasive barred owls (Strix varia). They also face threats from inbreeding, according...

The poisons that California marijuana growers use to kill rodents are moving through the food web, recent research found, and may be negatively impacting threatened northern spotted owls (Strix occidentalis...