Every living thing leaves a genetic trail in its wake. As animals, plants and microbes shed cells and produce waste, they drop traces of their DNA everywhere — in the air, soil and water. Researchers are now able to capture the cells of animals, sequence their DNA and identify which species were present at a point in time. Think of it as genetic fingerprints that leave a trace of past activity.
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It’s no secret that Arctic sea ice is melting. Polar bears, the poster child for climate change, are among the animals most affected by the seasonal and year-to-year changes in Arctic sea ice, because they rely on this surface for essential activities such as hunting, traveling and breeding. A new University of Washington study, with funding and satellite data from NASA, finds a trend toward earlier sea ice melt in the spring and later ice growth in the fall across all 19 polar bear populations, which can negatively impact the feeding and breeding capabilities of the bears.
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The gusting westerly winds that dominate the climate in central Asia, setting the pattern of dryness and location of central Asian deserts, have blown mostly unchanged for 42 million years. A University of Washington geologist led a team that has discovered a surprising resilience to one of the world’s dominant weather systems. The finding could help long-term climate forecasts, since it suggests these winds are likely to persist through radical climate shifts.
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When graduate student Carol Bogezi heard that Washington has big carnivores, she was sold. Bogezi, who grew up in Uganda and began her doctoral degree several years ago at the UW’s School of Environmental and Forest Sciences, was excited to track and tag cougars and investigate how the recent return of wolves affects ranchers. Her graduate school research and resiliency in overcoming obstacles has caught the attention of the Bullitt Foundation, a Seattle-based organization that seeks to promote responsible human activities and sustainable communities in the Pacific Northwest.
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The UW Foundation honors Maggie and Doug Walker for their decades-long history of generosity and leadership.
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