Part of why this is so confusing to me is that if you take some of these invasive-like species, and introduce them to new habitats, they DO cause huge problems (see: Kudzu, certain species of mussel… I could go on and on). And due to combinations of things like “toxins” or “low nutritional content” or various really good counter-herbivore adaptations, I actually wouldn’t be that surprised if only 1 or 2 things in their native environment actually subsist predominantly off of the invader, or at least eat it at such a level that it would kill large numbers of them.
Part of why this is so confusing to me is that if you take some of these invasive-like species, and introduce them to new habitats, they DO cause huge problems (see: Kudzu, certain species of mussel… I could go on and on). And due to combinations of things like “toxins” or “low nutritional content” or various really good counter-herbivore adaptations, I actually wouldn’t be that surprised if only 1 or 2 things in their native environment actually subsist predominantly off of the invader, or at least eat it at such a level that it would kill large numbers of them.