Subspecies and the philosophy of science

摘要: ABSTRACT Phylogenetic methods increasingly are brought to bear on questions of subspecies taxonomy, but several recent examples highlight the need for a clear and consistent philosophical approach how genetic data used assess limits. Such standards crucial conceptually, whether or not taxonomic decisions affect conservation decisions, as they might in study focused California Gnatcatcher (Polioptila californica), taxon currently protected under U.S. Endangered Species Act. It is also that any adopted framework allows each full range alternatives be either supported rejected. In this spirit, addition recommending best practices, I propose an amendment phylogenetic species concept include category.