. The Australian zoologist. Zoology; Zoology; Zoology. EFFECTS OF ENVIRONMENT UPON TORTOISE PIGMENTATION. Fig. 1. Young Emydura krefftii reared for six months in a white-floored container (Nos. I and 3 from left) and a black-floored container (Nos. 2 and 4). assume cryptic colouration consistent with a particular substrate has obvious advantages for tortoises, increasing an individual's chances of avoiding predation and allowing effective exploitation of a wider range of habitats by the species. In view of its survival value it is therefore not surprising to find that the pigmentation of juven
. The Australian zoologist. Zoology; Zoology; Zoology. EFFECTS OF ENVIRONMENT UPON TORTOISE PIGMENTATION. Fig. 1. Young Emydura krefftii reared for six months in a white-floored container (Nos. I and 3 from left) and a black-floored container (Nos. 2 and 4). assume cryptic colouration consistent with a particular substrate has obvious advantages for tortoises, increasing an individual's chances of avoiding predation and allowing effective exploitation of a wider range of habitats by the species. In view of its survival value it is therefore not surprising to find that the pigmentation of juvenile tortoises, at least of some species, is capable of modification. ACKNOWLEDGEMENTS I would like to thank Mr. J. H. Sullivan and Dr. A. A. Martin for commenting on the manuscript REFERENCES CANN, J. (1978). Tortoises of Australia (Angus and Robertson: Sydney), COGGER, H. G. (1975). Reptiles and Amphibians of Australia (A. H. and A. W. Reed: Sydney), p. 133. GOODE, J. (1967). Freshwater Tortoises of Australia and New Guinea (Lansdowne Press: Melbourne), p. 109. WORRELL, E. (1963). Reptiles of Australia (Angus and Robertson: Sydney), Aust. Zool. 21(1), 1982 107. 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 Royal Zoological Society of New South Wales; Royal Zoological Society of New South Wales. Proceedings. [Sydney, Royal Zoological Society of New South Wales]
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1914
