Monthly Archives: January 2025

Take a Deep Breath: Tracing the Carbon in our Air back to the Source

Carbon emissions in our air have long-term consequences for our health and our planet. Despite this, yearly carbon emissions are in the range of billions of metric tons. However, not all the carbon in our air is chemically the same, and the differences in these compounds can give researchers forensic evidence on where these pollutants are coming from.
Alison Clark is in the lab of Kim Anderson in the Department of Environmental and Molecular Toxicology. In her research she aims to answer the question “where do the things that we are exposed to over time come from and how can we tell?” In particular, she is investigating ways to detect and trace the origins of polycyclic aromatic hydrocarbons (PAH). PAH are found in engine exhaust fumes, tobacco smoke, wildfire smoke, coal and petroleum products. Long-term exposure to PAH can lead to various cancers and cardiovascular issues.
Currently, Clark is investigating human exposure to PAH and how it moves through the environment by analyzing data from a town with a known source of PAH emissions.

Tune in at 7pm on January 26th at 7 pm PST on KBVR 88.7 FM to hear all about the sounds and silence of our forests and what that tells us about them! 

If you miss the show, you can check out the interview wherever you get your podcasts, including on our KBVR page, Spotify, Apple Podcasts, or anywhere else!

The details are in the DNA

Have you ever been on a walk or a hike and encountered the feather of a bird or the scat of a deer? Most likely, you tried to avoid stepping on the scat and you maybe admired the feather for a few moments before moving on. But did you know that those left behind animal parts are actually full of genetic data that scientists use to answer all kinds of ecological questions? Nowadays, many ecological studies strive to be as non-invasive as possible since physically handling animals can be logistically complicated as well as potentially cause stress to the animal. Hence, being able to make use of biological samples such as feathers or scat that are already left behind is incredibly non-invasive!

On this week’s show, we talked with PhD student Emily Dziedzic about her multitude of projects that she is working on for her research in the Levi Lab in the Department of Fisheries, Wildlife, and Conservation Sciences. Emily is a molecular ecologist who focuses on bioinformatics, which means that she uses computer-based methods to analyze genetic data. Her work spans a wide variety of taxa, from freshwater fish to scarlet macaws, from bats to Humboldt marten, and has implications for improving ecological monitoring for management as well as assisting in the fight against wildlife disease.

If you’re curious to hear more about Emily’s research as well as learn about how she went from being a young child who organized all the kids in her neighborhood to save snapping turtle hatchlings on bikes to a molecular ecologist working on conservation management projects at OSU, then listen to our episode with Emily wherever you get your podcasts, including on our KBVR page, Spotify, Apple Podcasts, or anywhere else!