It may not be exaggeration if I say that there are probably as many species concepts as there are thinking systematists and students of speciation.
Systematics and the Origin of Species, Chapter V (p. 115), Harvard University Press. 1942
It may not be exaggeration if I say that there are probably as many species concepts as there are thinking systematists and students of speciation.
Systematics and the Origin of Species, Chapter V (p. 115), Harvard University Press. 1942