Triangulating from the cairns…
Knowledge graph centered on Principal Components Analysis (Amphibia) with 18 nodes and 83 connections. Top connected: elevational gradients, Ambystoma, Ambystoma tigrinum, Ambystoma tigrinum nebulosm, tiger salamander.
Standardization of environmental variables measured on different scales followed by principal components analysis to reduce dimensionality and identify major axes of environmental variation.
Synthesized from method descriptions across 1 paper using this protocol.