Justify 2 ways that planting a tree can increase biodiversity.?

Question

Justify 2 ways that planting a tree can increase biodiversity.?

Answer 1

Well, simply adding a tree need not increase biodiversity, if it's a member of a species that is already present. However, if it provides habitat for additional species (e.g., birds, insects) not already present there, then it can increase biodiversity of such groups by providing shelter, a source of food, etc.

However, it is important to note that one should not plant an exotic tree just to increase the number of species in an area -- it's always best to stick with native species.