Biodiveristy includes genetic diversity. It also includes the diversity of species and of ecosystems. In other words, biodiversity is the diversity of life.
Genetic diversity helps biodiversity even exist. Let's say that all birds had exactly the same DNA. There would be neither genetic diversity or biodiversity, meaning all birds would be the same...
The 1992 United Nations Earth Summit in Rio de Janeiro defined "biodiversity" as "the variability among living organisms from all sources, including, 'inter alia', terrestrial, marine, and other...