Index of Similarity

Pronunciation
/IN-dex of SIM-il-ar-i-tee/
Category
Ecology
Plural
Indices of Similarity

Definition

A measure of similarity between two sets of data, often used in ecology to compare the species composition of different communities.

Etymology

From Latin 'similis', meaning 'similar'.

Example

The index of similarity between two habitats can indicate how alike their species compositions are.

Related Terms

  • Sorensen-Dice Index
  • Jaccard Index