(Solved): scientists call "invasive" non-native species, Horticultural expert Bill Granger has described the ...

scientists call "invasive" non-native species, Horticultural expert Bill Granger has described the Norway maple as a "tree on steroids" because of its dense rooting system. This tree reaches sexual maturity quickly and spreads many seeds over a wide area. Another invasive species, pampas grass, is described by Dr. Spencer Barrett as an "excellent opportunist." Pampas grass relies on allies such as humans to cut out vegetative competition before it proceeds to dominate the landscape. 23. By maintaining a stronghold on the environment and preventing further environmental changes, the Norway maple could be described as a climax species an intermediate species a pioneer species a seral stage species