Antarctic Biology: Dr. Diana Wall (1943–2024)
Distinguished Professor, Colorado State University | Founding Director, SoGES
Dr. Diana Wall was a world-renowned soil ecologist and a pioneer in Antarctic research. Over the course of 28 consecutive field seasons, she transformed our understanding of life in the most extreme environments on Earth. This profile preserves an original interview with Dr. Wall, conducted while she was in residence at McMurdo Research Station.
The “Legacy” Interview: Extremes of the Planet
Originally conducted for the Science Careers Web project.
Why would a biologist go to Antarctica? Isn’t it just rock and ice?
Absolutely not. Antarctica has lots of life. First, there is a large area of Antarctica that is ice-free, and when you fly over, you see vast amounts of soil. There are about 4,000 km² of ice-free area, and there are groups such as bacteria, fungi, nematodes, and groups such as mites and collembola. Additionally, if you are a marine person, this place is thriving with many species. The beauty of the Antarctic land organisms is that there are fewer species here than almost anywhere in the world.
What projects are going on there now that biologists are involved in?
I can’t possibly describe all the projects. I can tell you that there are scientists here now with the following projects: seals; penguins; stream and lake algae in the Dry Valleys; soil invertebrates—nematodes, mites, collembola, bacteria, fungi; at the ice edge, algae.
Is there anything in the Arctic for a biologist to do?
There is much more activity I believe in the Arctic because it is more accessible. The most famous biota of course are the polar bears, but additionally, there is a much greater diversity of plant life, animal life, invertebrates and microbial life. As with the Antarctic, biologists are interested in how these organisms survive, find food, reproduce in such an extreme environment, and how vulnerable their future may be with global change.
What does the future look like for a biologist that wants to study in the Arctic/Antarctic?
I think it is bright… and extremely relevant to the rest of the world. The polar regions not only affect climate throughout our globe but maintain a life support system for the rest of the globe. Knowing how changes may affect unique animals and plants provides us with additional information on other biota in other ecosystems.
2026 Perspective: The Wall Valley Legacy
Since this interview, the research site in Antarctica where Dr. Wall spent decades was officially named Wall Valley in her honor.
In 2026, her work continues through the Global Soil Biodiversity Initiative and the McMurdo Dry Valleys LTER. Her research proved that even the “humble lives underfoot”—like the nematode Scottnema lindsayae—are critical indicators of global climate health.
Modern Resources for Polar Biology
- USAP: United States Antarctic Program – The gateway for all U.S. research on the continent.
- The Wall Lab at CSU – Explore the ongoing work of her students and colleagues.
- Global Soil Biodiversity Initiative – A scientific coalition Dr. Wall helped found.