. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. KEAST: BIRD SPECIATION IN AUSTRALIA 355 varying clinally (Pachycephala nifiventris and Monarcha mel- anopsis). Size and colour dines are developed in most sedentary Australian flycatchers that have, on the one hand, an extensive. RHIPIDURA LEUCOPHRYS Fig. 15. The influence of isolation on south-north clines of decreasing size. Bergmann's Rule has a wide application in Australian birds. In the continuously ranging Rhipidura leucophrys southernmost and northernmost populations differ in size by 11 per cent. In Seisura i
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. KEAST: BIRD SPECIATION IN AUSTRALIA 355 varying clinally (Pachycephala nifiventris and Monarcha mel- anopsis). Size and colour dines are developed in most sedentary Australian flycatchers that have, on the one hand, an extensive. RHIPIDURA LEUCOPHRYS Fig. 15. The influence of isolation on south-north clines of decreasing size. Bergmann's Rule has a wide application in Australian birds. In the continuously ranging Rhipidura leucophrys southernmost and northernmost populations differ in size by 11 per cent. In Seisura inquieta, however, in which there is a gap in the range, the difference is 22 per cent (see Keast, 1958a). The letters a, b, and c indicate isolated populations of S. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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