Как да изчислим Biodiversity Index (Shannon)

Какво е Biodiversity Index (Shannon)?

The Shannon-Wiener diversity index H' measures biodiversity combining species richness and evenness. H' = −Σ(pᵢ × ln pᵢ).

Ръководство стъпка по стъпка

1. 1pᵢ = nᵢ/N for each species
2. 2H = −Σ(pᵢ × ln pᵢ)
3. 3H_max = ln(S) · Evenness J = H/H_max

Worked Examples