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Because they don't have enough predators, because of humans presence (birds, and more medium size insect eating animals are depleted, because humans prefer dogs
by 11235813213455 2y ago
Because they don't have enough predators, because of humans presence (birds, and more medium size insect eating animals are depleted, because humans prefer dogs, cats, cars, plastic wrapping, and laziness
- s1artibartfast 2y agoIt's not that. Many of these thing have no native predators on the north American continent,and easily out compete local organisms. When it comes to things like soil bacteria and root fungus, it is even more pronounced. You can loose thousands of acres of monoculture tree to pathogens that they have evolutionary exposure to and we're not previously present in the area.