Get 20M+ Full-Text Papers For Less Than $1.50/day. Subscribe now for You or Your Team.

Learn More →

Further observations on the captive reproduction of Johnstone's crocodiles at Melbourne Zoo

Further observations on the captive reproduction of Johnstone's crocodiles at Melbourne Zoo Crocodylusjohnsoni a t Melbourne Zoo R. W . DUNN Curator of Rtptiles 6 Birds, Royal Melbourne Zoological Gardens, POB 74, Parkville, Victoria 3052, Australia Johnstone’s crocodile Crocodylus johnsoni was first bred at the Royal Melbourne Zoological Gardens in 1975 (Dunn, 1977). Four young were hatched, all of which died at between four and five months of age. In each case the cause of death was impaction of the stomach with mouse fur, possibly as a consequence of our not providing gastroliths or stomach stones. T h e following year the breeding p laid 14 eggs and in 1977 a clutch of ten. Both clutches proved to be infertile. T h e original fertile clutch had followed a period of aggressive interaction between dd but after 1975 the two subordinate d d had been removed from the enclosure and subsequently only infertile eggs were laid. At the onset of the 1978 breeding season, therefore, it was decided to reintroduce a second d crocodile into the breeding pair’s enclosure. MALE I N T E R.4 C’I‘I0N On 14 April 1978 a young adult d was moved to the land area of the exhibit enclosure but prevented from entering the pool http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Zoo Yearbook Wiley

Further observations on the captive reproduction of Johnstone's crocodiles at Melbourne Zoo

International Zoo Yearbook , Volume 21 (1) – Jan 1, 1981

Loading next page...
 
/lp/wiley/further-observations-on-the-captive-reproduction-of-johnstone-s-rL0ZzY9O0r

References (2)

Publisher
Wiley
Copyright
Copyright © 1981 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0074-9664
eISSN
1748-1090
DOI
10.1111/j.1748-1090.1981.tb01952.x
Publisher site
See Article on Publisher Site

Abstract

Crocodylusjohnsoni a t Melbourne Zoo R. W . DUNN Curator of Rtptiles 6 Birds, Royal Melbourne Zoological Gardens, POB 74, Parkville, Victoria 3052, Australia Johnstone’s crocodile Crocodylus johnsoni was first bred at the Royal Melbourne Zoological Gardens in 1975 (Dunn, 1977). Four young were hatched, all of which died at between four and five months of age. In each case the cause of death was impaction of the stomach with mouse fur, possibly as a consequence of our not providing gastroliths or stomach stones. T h e following year the breeding p laid 14 eggs and in 1977 a clutch of ten. Both clutches proved to be infertile. T h e original fertile clutch had followed a period of aggressive interaction between dd but after 1975 the two subordinate d d had been removed from the enclosure and subsequently only infertile eggs were laid. At the onset of the 1978 breeding season, therefore, it was decided to reintroduce a second d crocodile into the breeding pair’s enclosure. MALE I N T E R.4 C’I‘I0N On 14 April 1978 a young adult d was moved to the land area of the exhibit enclosure but prevented from entering the pool

Journal

International Zoo YearbookWiley

Published: Jan 1, 1981

There are no references for this article.