MaxEnt SAR theory

Knowledge graph centered on MaxEnt SAR theory with 70 nodes and 100 connections. Top connected: Hummingbird, Ipomopsis, I. aggregata, Ipomopsis aggregata, Biodiversity scales from plots to biomes with a un.

Method synopsis

Application of METE mathematical framework to predict species-area relationships and species-abundance distributions based on community state variables and entropy maximization principles.

Synthesized from method descriptions across 9 papers using this protocol.

Procedure from a recent peer-reviewed implementation

Steps below were extracted from the most recent peer-reviewed implementation of this protocol in the corpus — An equation of state unifies diversity, productivity, abundance and biomass (2022), Communications Biology. The protocol was originally introduced by Biodiversity scales from plots to biomes with a universal species-area curve (2009), Ecology Letters. Implementations in other papers (listed below) may differ.

1. Apply equation of state
   Used the derived equation B = c(E^1/3)/(S^1/3 ln(1/β)) where c ≈ (7/2)Γ(7/3) = 4.17 and β = λ₁ + λ₂ to predict biomass from other state variables. Also tested analytical approximations.
   Quantities: Applied to all 42 datasetsDuration: Not specifiedConditions: Not specified
   Equipment: Python programming language, R programming language

Typical Equipment

• Python programming environment
• mathematical computation software
• Python with statistical libraries

Output Measurements

• predicted SAR slopes
• predicted species-abundance distributions

Papers Using This Protocol (10)

Species Studied With This Protocol