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
Bajing Kinabalu
Callosciurus baluensis
Bilou or Siamang Kerdil Mentawai
Hylobates klossii
Biul, Lasun, Bievel, Nyentek, Slentek, Tulupan
Mustela lutreolina
Ceba
Macaca maura
Codot Bunga Halmahera
Syconycteris carolinae
Cucut pedang
Alopias pelagicus
dammar raja
Agathis dammara
Garangan Ekor Panjang
Herpestes semitorquatus
gobo
Arctium lappa
Harimau
Panthera tigris
Harimau Dahan
Neofelis diardi
jarak
Ricinus communis
Kelawar Kupu-kupu
Kerivoula picta
Kelempiao
Hylobates albibarbis
Kodok-langsing Coklat
Ansonia leptopus
Kucing Batu
Pardofelis marmorata
Kucing Merah
Catopuma badia
Kucing Tandang
Prionailurus planiceps
Lumba lumba putih Cina
Sousa chinensis
Maja Batuh
Aegle marmelos