Biodiversity, short for biological diversity, refers to the variety of life on Earth at all its levels, from genes to ecosystems, and the ecological and evolutionary processes that sustain it. This variety includes diversity within species (genetic diversity), between species (species diversity), and of ecosystems (ecosystem diversity).

Key aspects of biodiversity include:

• Species Diversity: The number and abundance of different species in a particular area.
• Genetic Diversity: The variation in genes within a species. This is vital for adaptation to changing environments.
• Ecosystem Diversity: The variety of different habitats, ecological communities, and ecological processes.

Biodiversity is crucial for the health and stability of ecosystems, providing essential services such as pollination, water purification, climate regulation, and nutrient cycling. It also supports human well-being by providing food, medicine, and economic opportunities.

More information can be found at:

• UNEP - What is Biodiversity
• World Wildlife Fund - Biodiversity