Biodiversity Calculator
Calculate biodiversity indices including Shannon-Wiener diversity, Simpson's index, and species richness. Enter species abundance data and get instant ecological diversity metrics.
AnalysisBiodiversity Index Calculator
Enter species names and abundance counts to calculate diversity indices.
Species Richness (S)
Number of species present
Shannon-Wiener (H')
Accounts for richness and evenness
Simpson's (1-D)
Probability of interspecific encounter
Evenness (J')
How evenly individuals are distributed
Total individuals: · Dominance:
About these indices
Shannon-Wiener (H'): H' = -Σ pi ln(pi). Higher values indicate more diversity. Typically ranges 1.5-3.5.
Simpson's (1-D): 1 - Σ ni(ni-1) / N(N-1). Ranges 0-1. Higher values mean higher diversity.
Evenness (J'): J' = H' / ln(S). Ranges 0-1. Values near 1 indicate even distribution.
Featured Species
참고래
Balaenoptera physalus
밍크고래
Balaenoptera acutorostrata
백상아리
Carcharodon carcharias
Chang-po
Acorus calamus
Hwan-do-sang-ǒ
Alopias pelagicus
Jwitokki
Ochotona coreana
Mettokki
Lepus coreanus
Seoyangtobpul
Achillea millefolium
Hainan Hare
Lepus hainanus
American Toad
Anaxyrus americanus
Alocasia Quilted Dreams
Alocasia sinuata
Anchieta's Sunbird
Anthreptes anchietae
Andrew s Bunomys
Bunomys andrewsi
Angolan Kusimanse
Crossarchus ansorgei
Abyssinian Hare
Lepus habessinicus
American Jackal
Canis latrans
Bare-tailed Woolly Opossum
Caluromys philander
Amazonian manatee
Trichechus inunguis
African or Cape clawless otter
Aonyx capensis
barbel palm
Acanthophoenix rubra