Habitat Area Calculator
Calculate minimum habitat area needed to support a target species population using species-area relationships.
Minimum Habitat Area
625 hectares
Minimum Habitat Area vs Target Number of Species
Formula
## How to Calculate Minimum Habitat Area The species-area relationship predicts how many species an area can support. ### Formula **S = c * A^z** (Species-Area Relationship) **A = (S / c)^(1/z)** (Solving for area) Where: - S = number of species - A = area (hectares) - c = constant (varies by taxon and region, typically 5-20) - z = exponent (typically 0.2-0.35) This relationship is one of ecology's most consistent patterns.
Exemplo Resolvido
Find area needed for 50 species with c=10 and z=0.25.
- 01Area = (50 / 10)^(1/0.25) = 5^4 = 625 hectares
- 02In acres: 625 * 2.471 = 1,544 acres
- 03In km2: 625 / 100 = 6.25 km2
- 04Species at half area: 10 * 312.5^0.25 = 42 species
Perguntas Frequentes
What is the species-area relationship?
The species-area relationship (SAR) is one of ecology's fundamental laws: larger areas support more species. The relationship follows a power law: S = cA^z.
Why does habitat fragmentation matter?
Fragmenting habitat into small patches reduces total species more than losing the same amount of area from a single large patch. Edge effects, isolation, and reduced gene flow all contribute.
What is the 30x30 conservation goal?
The 30x30 initiative aims to protect 30% of land and ocean by 2030. Scientists estimate this level of protection is needed to prevent catastrophic biodiversity loss.