Ernst Mayr Biological classification Toward a Synthesis英文电子书.pdf

ly, applying it to any approach making use of the similarity of species and other taxa, while to the strict numerical pheneticists the term phenetic means the theory-free use of unweighted charac- Biological Classification: Toward a ters. Cladistics (or cladism). This method Synthesis of Opposing Methodologies of classification (4), the first comprehen- sive statement of which was published in 1950 by Hennig (5), bases classifications Ernst Mayr exclusively on genealogy, that is, on the branching pattern of phylogeny. For the cladist phylogeny consists of a sequence of dichotomies (6), each representing the For nearly a century after the publica- or unspoken starting point of virtually all splitt