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
Alashanskyi Netopyr’
Hypsugo alaschanicus
Altaiskaya Myshovka
Sicista napaea
Altaiskaya pischuha
Ochotona alpina
Altaiskii Tsokor
Myospalax myospalax
Amurskii Lemming
Lemmus amurensis
Amurskii Yozh
Erinaceus amurensis
Armyanskaya Myshovka
Sicista armenica
Belomordyi Del’fin
Lagenorhynchus albirostris
Bely Medved
Ursus maritimus
Blednyi Karlikovyi Tushkanchik
Salpingotus pallidus
Bobr Kanadskii
Castor canadensis
Bolsheukhaya Polyovka
Alticola macrotis
Bolshoi Trubkonos
Murina hilgendorfi
Boyalychnaya Sonya
Selevinia betpakdalaensis
Bukharskaya Polyovka
Blanfordimys bucharensis
Bukharsky Podkovonos
Rhinolophus bocharicus
Burozubka Kamchatskaya
Sorex camtschatica
Burozubka Kavkazskaya
Sorex satunini
Burozubka Kogtistaya
Sorex unguiculatus
Burozubka Ploskocherepnaya
Sorex roboratus