Wu, K. (2019). Invasive, flammable grasses now blanket much of the United States. Retrieved 10 November 2019, from https://www.pbs.org/wgbh/nova/article/invasive-grasses-wildfire/?linkId=76460439
Both the impacts of climate change as well as human disturbances has increased the presence of wildfires across the United States. However, Bethany Bradley, an Amherst biogeographer and spatial ecologist, highlights that the severity of wildfires has also increased. Invasive grasses that carpet North America provide endless kindling for stray sparks and cigarette buds. These quick growing grasses reproduce, covering hillsides and leaving seasonal biomass to fuel the fires. In dry, drought prone regions, exotic grasses easily outcompete native plants with quick reproductive cycles and drought resistance. The presence of invasive grass species makes a region three times more susceptible to destructive wildfires.
In order to lessen the impact of wildfires, it’s necessary for the United States to address this invasive grass issue. With the more extensive data and mapping of 8 grass species published by PNAS, it is more feasible to combat the spread of grasses than in decades earlier. Most introduction occurs as humans push further into the wilderness, unknowingly carrying seeds in on soles, supplies, and clothing. I believe that anyone or anything traveling into and through highly sensitive land, like national parks, should be checked and regulated to avoid the spread of more invasive grasses.
I agree with your solution for preventing further spreading of invasives. Here in CA we are the epitome of what your article discusses. For all of Golden CA, what do you think should be done with that “golden” invasive grass. That is a HUGE undertaking to remove it and get back to natives… and obviously our increasing fire damage is getting unbearable expensive. Do you think we need to aggressively remove that grass the best we can?
I agree that there should be regulations on what is brought into parks to preserve native species. I don’t think we should aggressively remove the invasive species that already inhabit areas as long as it does not pose a large threat or is harming others. In California’s case with our rolling golden hills, I believe introducing other plant species to live among the grasses would decrease risk.