Biodiversity
The variety of life in an ecosystem, including species, genetic, and habitat diversity
Species diversity
The number of different species in an ecosystem
Genetic diversity
The variation of genes within a species
Habitat diversity
The variety of habitats in an ecosystem
Endemic species
A species only found in a specific location
Invasive species
A non-native species that negatively impacts an ecosystem
Red list
A global list of threatened species maintained by the IUCN
Keystone species
A species that plays a crucial role in maintaining ecosystem structure