The comparative method in evolutionary biology

Key Points

• To provide a comprehensive framework for applying comparative methods to evaluate adaptation while accounting for phylogenetic relationships.
• Reviewed theoretical and practical approaches for reconstructing phylogenetic trees and estimating ancestral character states.
• Outlined statistical methods for comparative analysis of both discrete trait data and continuous biological variables.
• Demonstrated that failing to control for phylogenetic non-independence leads to spurious correlations when testing adaptive hypotheses.
• Provided analytical models to distinguish true adaptive convergence from similarities due to common descent across diverse taxa.