Species-area relationship validation using state-level plant data (Plantae)

Knowledge graph centered on Species-area relationship validation using state-level plant data (Plantae) with 8 nodes and 13 connections. Top connected: On the implications of species-area relationships , Species-area relationship, interaction turnover, local endemism, Constant Connectance in Space model.

Method synopsis

Validation of theoretical SAR predictions by fitting log-log regressions to existing state-level plant species count data across the continental United States.

Synthesized from method descriptions across 1 paper 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 — On the implications of species-area relationships for endemism, spatial turnover, and food web patterns (1997), Oikos. Implementations in other papers (listed below) may differ.

1. Obtain plant species data
   Acquired data on total number of plant species and endemic plant species for each of the 48 contiguous United States from existing botanical databases
   Quantities: 48 states totalDuration: Not specifiedConditions: Continental United States excluding Alaska and Hawaii
   Equipment: existing botanical databases
2. Fit species-area relationships
   Performed log-log linear regression of species count versus state area, fitting both total species and endemic species separately to determine SAR exponents
   Quantities: Two separate regressions on 48 data points eachDuration: Not specifiedConditions: Used ln-ln transformation for linear fitting
   Equipment: statistical software

Typical Equipment

• existing botanical databases
• statistical software

Output Measurements

• SAR exponent z
• endemic-area relationship exponent z'
• coefficient of determination R²

Papers Using This Protocol (1)