Comment by close04

I often read about invasive species from a Western point of view and some of the most aggressive and hard to keep under control species come from Asia. Is the Asian ecosystem equally invaded by Western species? Are forests, gardens, or lakes in Asia overrun by European carp and grey oyster mushrooms? Or is there something about the environment and ecosystem in Asia that makes those species uniquely invasive and resistant?

For example the Japanese knotweed evolved to grow on the side of volcanoes and survive the occasional lava flow. It's a uniquely harsh environment which prepares it for thriving in any "gentle" garden in the world. But the mushrooms didn't evolve in any particularly bad environment, so why are these species outcompeting local ones? Why are they so fit for a new environment?

I know I have some selection and survivorship bias because I only know of the species that made it, not the ones which try to invade and fail so that's why I'm curious if this is a special situation, or more or less expected because a known percentage of species from any part of the world end up outcompeting local species from another.