Research students Arielle Keinlen and Addison Allen emerge from one of the small vertebrate study areas after baiting traps in August 2018 on the John D. Rockefeller Memorial Parkway. Behind them are lodgepole pines — a tree adapted to fire — some that burned 30 years ago and others, just in 2016. “[The trees] need fire,” Roehrs said. “They benefit from fire. That opens up the cones and spreads the seeds.” The forest that burned most recently and had younger growth didn’t seem to burn as hot as the older-growth test areas. Roehrs thinks that might be because the younger lodgepole pines haven’t reached the point where they were producing a lot of cones, which are opened up in fire and spreads the seeds. “So far, we’re seeing differences in places based on the burn interval,” he said. “Those differences are much more pronounced in the plant communities and the insect communities.”
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