The natural history of nesting in two Australian freshwater turtles

Booth, DavidT. (2010) The natural history of nesting in two Australian freshwater turtles. Australian Zoologist, 35 2: 198-203.

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Author Booth, DavidT.
Title The natural history of nesting in two Australian freshwater turtles
Journal name Australian Zoologist   Check publisher's open access policy
ISSN 0067-2238
Publication date 2010-04-01
Sub-type Article (original research)
Volume 35
Issue 2
Start page 198
End page 203
Total pages 6
Editor Dan Lunney
Place of publication Sydney, Australia
Publisher Royal Zoological Society of New South Wales
Collection year 2011
Language eng
Subject 9608 Flora, Fauna and Biodiversity
060801 Animal Behaviour
Formatted abstract
The nesting behaviour of two Australian freshwater turtles, the broad-shelled river turtle Chelodina expansa and the Brisbane river turtle Emydura signata are described. Both species nest during, or soon after rain. C. expansa nests exclusively during the day while E. signata as a preference for nesting at night but can be found nesting during the day. C. expansa nests 30-300 m from the water's edge usually after walking up a hill, while E. signata typical nests just 2-10 m from the water's edge. Both species dig their nests exclusively with their hind legs by alternative scooping movements. Nest excavation takes from 20 to 180 minutes depending on how hard the soil is compacted.Typically some water is released from the cloaca during the nesting process but the role of this behaviour remains unknown. C. expansa uses a `body-slamming' behaviour to compact the nest plug at the end of nesting but this behaviour was not observed in E. signata.
Keyword Nesting
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Biological Sciences Publications
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Created: Fri, 05 Nov 2010, 15:24:26 EST by Gail Walter on behalf of School of Biological Sciences