149 news posts related to Ecology

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New global archive logs changes in behavior of Arctic animals

A moose in Denali National Park

The Arctic’s dramatic changes — warmer winters, earlier springs, shrinking ice and more human development — are impacting native animals. Researchers have long been observing the movements and behavior of animals in this region, but it’s been difficult to discover and access these data for meaningful collaborations. Now scientists from around the world have established the Arctic Animal Movement Archive, an online repository for data documenting the movements of animals in the Arctic and Subarctic. 

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Happy hauntings from UW Environment!

Crows roost at UW Bothell

As darkness falls across the land, we are once again at the time of year when temperatures drop, days shorten and scary things start popping up. Last year, we celebrated the season of all things spooky with slimy, creepy creatures found in Pacific Northwest waters. This year, we turned our attention to the land, and invited researchers at the School of Environmental and Forest Sciences (SEFS) to share a little about their favorite classic Halloween emblem. 

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Early-arriving endangered Chinook salmon take the brunt of sea lion predation on the Columbia

Sea lion eating a salmon

The Columbia River is home to one of the West Coast’s most important Chinook salmon runs. Through late spring and early summer, mature fish return from the sea and begin their arduous journey upriver to spawn. In recent years, these fish have faced an additional challenge: hungry California sea lions. A new University of Washington and NOAA Fisheries study found that sea lions have the largest negative effect on early-arriving endangered Chinook salmon in the lower Columbia River. 

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Studying Yellowstone’s ravens during COVID-19

GPS tracking device on a raven

Summers for UW Environment students are often spent working as interns, taking summer classes or accompanying faculty conducting field research. But the spring and summer of 2020 were anything but typical as COVID-19 forced faculty and students to figure out alternative plans or rethink research. With the belief that many students learn best when doing, known as immersive learning, many researchers have had to pivot to still provide students with the resources and opportunities normally available. 

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Aquatic hitchhikers: Using mobile technology to predict invasive species transmission

Invasive Eurasian milfoil entangled on a boat and trailer.

A cooler full of fish might not be the only thing anglers bring back from a trip to the lake. Unknowingly, they may also be transporting small aquatic “hitchhikers” that attach themselves to boats, motors ― and even fishing gear ―  when moving between bodies of water. Considerable research shows that aquatic invasive species can completely transform ecosystems by introducing disease, out-competing and eating native species, altering food webs, changing physical habitat, devastating water-delivery systems and damaging economies. 

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