Niche Model

Knowledge graph centered on Niche Model with 10 nodes and 20 connections. Top connected: Rocky Mountain Biological Laboratory, Hymenoptera, Grasshoppers, Trophic interaction field observation, Harte Lab upper site.

Method synopsis

Construction of trophic species webs from field observations followed by calculation of Link Area Relationships and comparison with the Constant Connectance in Space model predictions.

Synthesized from method descriptions across 1 paper using this protocol.

Procedure as described in the canonical source

Steps below were extracted from the paper that introduces this protocol — Remote sensing strategies for surface mineral and contaminant detection (2025). Implementations in other papers (listed below) may differ.

1. Construct trophic species webs
   From the data collected from each plot, constructed a trophic species web by aggregating individual species into trophic species and defining trophic links
   Quantities: One web per plot, 4 webs total for 2001 dataDuration: Post-fieldwork analysisConditions: Laboratory analysis
2. Calculate Link Area Relationships
   Calculated LAR z-values using all four webs, then used the CCS model to determine predicted z-values based on known species area curves and simple properties for each web such as species richness (S) and connectance (C)
   Quantities: 4 webs for 2001 analysis, 3 webs for 2000 analysisDuration: Post-fieldwork analysisConditions: Computational analysis
3. Construct overlap graphs
   Constructed Predator and Prey overlap graphs for each plot, and calculated LAR z-values in the same way as for trophic webs
   Quantities: Predator and prey overlap graphs for each plotDuration: Post-fieldwork analysisConditions: Computational analysis

Typical Equipment

• niche model program

Output Measurements

• trophic webs
• LAR z-values
• connectance values

Papers Using This Protocol (1)

Species Studied With This Protocol

Places Where Used