Yoshitha, do you mean technics like cloning crop plants that will result in thousands of genetically identical (or almost identical) individuals growing on large cultivated areas?

When you are talking about biodiversity on cloning, you are speaking about identical individuals, in this way of thinking, any disease that can affect one of those will exterminate the others by the time goes on... i think the effect on the local biodiversity can be overlayed by the years. (But i took it all from my butt.)