Short form of the term "biological diversity" or "diversity of life". This can refer to both the genetic diversity within a population and the degree of species richness at a particular site (also habitat, region). The biodiversity of a region comprises four different levels (stages) of diversity. These are genetic diversity within a species, species diversity in an ecosystem, ecosystem diversity and functional biodiversity. In a broader sense, this refers to the entire diversity of species on earth.
The existence of a large number of different plant and animal organisms is the prerequisite for a stable ecosystem. The term biodiversity is mainly used in the media in connection with the threat to biodiversity posed by man and climate change, either through human influence or long-term natural climate changes. However, the term "species diversity" is often used as a synonym for the somewhat unwieldy term in German. The term has a great significance in organic-ecologically oriented agriculture and viticulture, which is taken into account by means of environmentally conscious pest control with protection of beneficial organisms and soil care.