Individual dominance

The individual dominance (D _N ) is an ecological variable that represents the degree of dominance of a single species within a community ( biocenosis ) in relation to the total number of individuals in all its species. It is thus a measure of the percentage frequency of an individual species within their community.

Within ecology, communities are often described and delimited from one another based on their dominant species.

calculation

The individual dominance is determined as

${\displaystyle D_{\text{N}}={\frac {N_{\text{A}}}{N_{\text{S}}}}*100}$,

where the individual dominance denotes the number of individuals of the examined species A and the sum of the individuals of all species. ${\displaystyle D_{\text{N}}}$ ${\displaystyle N_{\text{A}}}$ ${\displaystyle N_{\text{S}}}$

N _A

literature

• Thomas M. Smith, Robert L. Smith: Ecology. Pearson Studies, Munich 2009; P. 445. ISBN 978-3-8273-7313-7