Catherine Cullingham, a molecular ecologist & Associate Professor at Carleton University, is shedding new light on the mountain pine beetle crisis affecting Western Canada’s forests. Cullingham emphasizes that these beetles, though damaging, are a natural part of forest ecosystems.
“The mountain pine beetle is a natural disturbance agent,” Cullingham explains. “They’ve evolved with pine trees to help in forest regeneration.” The beetles’ role in killing older trees facilitates natural forest fires that allow new growth. However, recent climate changes and human activities have exacerbated their impact, leading to significant ecological and economic challenges.
Cullingham acknowledges the beetles’ destructive effects but argues that they are fulfilling their ecological role. “I feel bad for the beetles. We paint them out to be such a villain when it’s just doing its thing!” she says.