What does the phylogenetic species concept rely on for defining species?

The phylogenetic species concept defines species based on their evolutionary history and common ancestry. This approach emphasizes the importance of shared evolutionary traits and the relationships among species through a phylogenetic tree, which illustrates how different species are related through a common ancestor. Each species is recognized as a distinct branch on this tree, highlighting their unique evolutionary paths while acknowledging their shared lineage.

This concept is advantageous because it takes into account both genetic and morphological data, creating a more comprehensive understanding of how species evolve over time. By using evolutionary history, it allows scientists to classify organisms in a way that reflects their developmental patterns and ancestral connections, making it a powerful tool in understanding biodiversity and speciation processes.