What is biodiversity? Definition and explanation:

The term biodiversity describes as a sub-aspect of biodiversity the totality of all animal and plant species as well as all micro-organisms and fungi that inhabit a certain area. Depending on whether some species dominate in the region in question and others are rare or all the species living there are about the same number, species diversity is considered to be smaller or larger. This means that, as a statistical quantity calculated on the basis of various scientific information, it scientifically defines the abundance of life forms of different ecosystems and thus their biological equilibrium, but at the same time also captures their economic and health significance for humans.
The ecosystems with the greatest biodiversity in the world are tropical rainforests and coral reefs. Scientists estimate that rainforests alone provide living space for around 75 percent of all animal and plant species on earth. Research has shown that on just one hectare several hundred species of trees, well over a thousand plant species and over 40 000 species of insects can be found. To date, about two million species of life are scientifically recorded worldwide, but researchers estimate that up to ten million species inhabit the earth. Every year, up to 25,000 new species are described, most of which are insects, ocean life organisms and microorganisms.