A commonly used definition of a non-native species in ecology is if it was introduced by human activity after the year 1492. Because the “discovery” of the Americas by the larger European society kicked off an age where humans started to travel to other continents much more than before, bringing animals and plants with them.
Invasive species are non-native species that out-compete and displace native species.
They are actively spread by people even know and they are pushing other species to extinction, but yeah, maybe let’s not call them invasive and solve the problem that way.
That brings up an interesting point, they’ve been here 400 years, at one point does something stop being classified as invasive?
If we say never, then the term invasive kind of loses all meaning, but I wonder where the logical cutoff might be and how it’s defined.
A commonly used definition of a non-native species in ecology is if it was introduced by human activity after the year 1492. Because the “discovery” of the Americas by the larger European society kicked off an age where humans started to travel to other continents much more than before, bringing animals and plants with them.
Invasive species are non-native species that out-compete and displace native species.
They are actively spread by people even know and they are pushing other species to extinction, but yeah, maybe let’s not call them invasive and solve the problem that way.