Friday, August 22, 2025 - 10:46 am
Dr. Katie Aitken’s latest project is investigating an overlooked part of Yukon’s forests: the tree cavities that shelter everything from woodpeckers to squirrels.
Aitken, an associate professor for YukonU's Northern Environmental and Conservation Sciences Program, studies cavity users—birds, mammals, and other species that rely on naturally occurring crevasses or holes in trees for nesting and shelter. These spaces form naturally as trees age or are carved out by “primary excavators” such as woodpeckers.