Biodiversity

• Species richness: the number of different species in an area
• Biodiversity hotspot: an area with a particularly high level of biodiversity
• Relative species abundance: the relative numbers of species in an area
• Allele frequency is the frequency with which a particular allele appears within a population
• Genetic diversity is a measure of the level of difference in the genetic make-up of a population
• Ecosystem services are services provided by the natural environment that are of benefit to people
• Conservation refers to maintaining and protecting a living and changing environment
• Ex-situ conservation is the conservation of components of biological diversity (living organisms) outside their natural habitats
• In-situ conservation is the conservation of ecosystems and natural habitats
• In-situ conservation also involves the maintenance and recovery of viable populations of species in their natural surroundings