Biodiversity within a Community (AQA A-Level Biology): Flashcards

Variety of life found in any given area

Species diversity, genetic diversity, ecosystem diversity

Number of species AND relative abundance of individuals

Range of different genes and alleles within a population

Variety of habitats from local areas to global biomes

Simple count of species; ignores abundance (can mislead)

$d = \frac{N(N-1)}{\sum n(n-1)}$

Greater species diversity in the community

Increases stability; more resilient to environmental change

Low: dramatic fluctuations; High: gradual, buffered responses