. The Australian zoologist. Zoology; Zoology; Zoology. 38 AUSTRALIAN ZOOLOGIST, 16(1), 1971 the previously dormant blastocysts had recommenced development, and so many females were pregnant. Later, many females were found to be anoestrous, with no pouch-young and small pouches. They had ceased all reproductive activity. Surprisingly, other anoestrous females were found that were still suckling (Newsome 1964a) and some of them managed to suckle their young right through droughts (Newsome 1964b). However, if a drought lasted 8 months, all young died. The worst drought witnessed during the 5-year
. The Australian zoologist. Zoology; Zoology; Zoology. 38 AUSTRALIAN ZOOLOGIST, 16(1), 1971 the previously dormant blastocysts had recommenced development, and so many females were pregnant. Later, many females were found to be anoestrous, with no pouch-young and small pouches. They had ceased all reproductive activity. Surprisingly, other anoestrous females were found that were still suckling (Newsome 1964a) and some of them managed to suckle their young right through droughts (Newsome 1964b). However, if a drought lasted 8 months, all young died. The worst drought witnessed during the 5-year study lasted 9 months; no joeys-at-heel could be found towards its end or for some time afterwards. 12 10 6 4 ^A4 DROUGHT INDEX -2 -4 -6 100 CD UJ cc CD (A UJ _l < UJ. 5 10 15 ABUNDANCE OF FOOD (% COVER) 20 Figure 3.—The relationship between breeding and food supply in central 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