The Bearing of the New Systematics on Genetical Problems The Nature of Species
Advances in geneticsPublished 1 January 1948
Ernst Mayr
Citations112
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Abstract
The new systematics has a significant impact on the development of certain fields of genetics, in particular that of population genetics and genetics in turn has profoundly influenced the thinking of the new systematist. This chapter deals with some aspects of animal taxonomy and discusses the nature of species. Species are the natural units characterized by their reproductive isolation from other such units. The species of the taxonomist, so far as based on morphological criteria, are merely inferences from the species in nature. Whenever, there is doubt as to the specific rank of a natural population, the analysis of the morphological criteria will have to be supplemented by a study of ecological differences and of the completeness of the reproductive isolation.
Keywords
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