biodiversity is a huge protective measure against invasive species gaining a foothold in the first place In support of this point- dutch elm & EAB would not be

biodiversity is a huge protective measure against invasive species gaining a foothold in the first place In support of this point- dutch elm & EAB would not be the scourges they have been, if we had not so heavily planted elms, and then after they were destroyed, ash. The monoculture of one type of tree, aka lack of diversity, is part of what makes the huge population explosion of the parasites possible.