16 Ecology and the origin of species. Pages 706-720,

H. G. Andrewartha and L. C. Birch. 1954. The Distribution and Abundance of Animals. Chicago: The University of Chicago Press, 782 pages.

Keywords: geographic barriers, dispersal, Melitacea attalia, Panaxia dominula, Maniola jurtina, Zosterops lateralis, Z. rendovae, environment, Thera juniperata, Coenonympha tullia, nongenetic variation in behavior may generate races and species, Colias chrysotheme, C. philodice, food, Drosophila gutttifera, selection mechanisms favoring reproductive isolation, D. pseudoobscura, D. persimilis