Of all the places Sierra Swenson expected to end up during her first semester at college, precious few were lined with jars full of preserved reptiles.
Four years ago, University of Wisconsin–Madison researchers wrapped up a multi-year effort to dramatically reduce the population of a destructive invasive species in a northern Wisconsin lake.
Over the last several years, state agencies and environmental nonprofit organizations have targeted dam removal as a way to quickly improve the health of aquatic ecosystems. Dams keep migratory fish from swimming upriver to spawn, block nutrients from flowing downstream, and change the entire hydrology of a watershed. From an ecosystem perspective, taking down a dam and returning a river to a more natural flow seems like a no-brainer.
The question is simple: can a lake be cleansed of a pernicious invader by simply raising the water temperature?