Flashcards
Biodiversity Definitions
Cards in this deck (17)
- 1Habitatthe place where an organism lives including the non living factors as well as the other species that live there
- 2Speciesa group of organisms whose members are similar to each other and can interbreed to produce fertile offspring
- 3Biodiversitythe number and range of different species to be found in the world, the genes they carry and the habitats in which they live
- 4habitat diversitythe number of different habitats in an area
- 5species diversitythe number of different species and the abundance of each species in an area
- 6genetic diversitythe variation of alleles within a species
- 7abundancenumber of
- 8distribution of specieswhere the species are found in a habitat
- 9species richnessthe number of different species present in a habitat
- 10species evennessa measure of the relative abundance of individuals in each species
- 11simpsons index of diversitya formula used to measure the diversity of a habitat, taking into account both evenness and richness
- 12extinctionthe death of the last member of a species
- 13endangered speciesthe population of the species is so low that there is a likely risk of extinction
- 14critically endangered speciesthe population of the species is so low that the species will become extinct
- 15in situ conservationconserving a species in its natural environment
- 16ex situ conservationconservation in artificially created environments
- 17keystone speciesa species that plays a critical role in maintaining the structure of an ecological community, whose impact on the community is greater than expected based on its relative abundance