A large-scale analysis shows that barred owls are the biggest factor impacting northern spotted owls in the Pacific Northwest. Researchers believe some northern spotted owl populations are likely to become extirpated in the next couple …
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 could stem the native owls’ …
Increasing frequency and length of snow droughts in Washington state may be linked to hoary marmot population declines. “Hoary marmots are one of many subnivean species that may be stressed by snow drought or declining …
When the Washington State Department of Agriculture destroyed a nest of Asian giant hornets last month, they not only gathered up the hundreds of hornets at various life stages from the first nest known in …
By the 2080s, amphibians may be either too hot or too dehydrated to inhabit the mountains of the Pacific Northwest under projected climate change scenarios. In a study published in Global Change Biology, Gavia Lertzman-Lepofsky, …
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 the former. Federally threatened northern …
Throughout much of their range, American pikas (Ochotona princeps) face threats from warming temperatures brought on by climate change. Small mammal that mostly dwell in alpine talus across the West, they die if they’re exposed …
In the 25 years since the Northwest Forest Plan was initiated, bird species still are not recovering, researchers found, despite sweeping protections the plan brought to old-growth forests in Washington, Oregon and California. While the …
Many well-known species like polar bears (Ursus maritimus) face immediate threats from climate change. But some wildlife, like populations of coastal cutthroat trout (Oncorhynchus clarkii) and coastal giant salamanders (Dicamptodon tenebrosus) in the Pacific Northwest, …
With temperatures expected to rise over the coming decades, some bird species could find it difficult to cope and suffer declines. But researchers in the Pacific Northwest found that old-growth forest may serve as a …
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