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Spatial ecology of hatchling water pythons (Liasis fuscus) in tropical Australia

Published online by Cambridge University Press:  01 March 2009

Lígia Pizzatto ,
Thomas Madsen ,
Gregory P. Brown  and
Richard Shine
Lígia Pizzatto*
Affiliation:
School of Biological Sciences, A08, University of Sydney, Sydney, NSW 2006Australia
Thomas Madsen
Affiliation:
School of Biological Sciences, University of Wollongong, Wollongong, NSW 2522Australia
Gregory P. Brown
Affiliation:
School of Biological Sciences, A08, University of Sydney, Sydney, NSW 2006Australia
Richard Shine
Affiliation:
School of Biological Sciences, A08, University of Sydney, Sydney, NSW 2006Australia
*
1Email: ligia.oceanica@gmail.com
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Abstract:

Young snakes are rarely seen in the field and little is known about their habits, mostly because they are too small for radio-telemetry (the primary method for studying snake spatial ecology). However, the offspring of some larger species can be fitted with transmitters and we investigated the spatial ecology and habitat use of ten hatchling water pythons (Liasis fuscus: Pythonidae) in the floodplain of the Adelaide River, tropical Australia. Patterns of habitat use in the late wet season and during the dry season were similar to those of adults tracked in the same vicinity in an earlier study. Soon after release the young snakes moved to the floodplain, avoiding pasture areas. Diurnal refuge sites were typically in the base of grass clumps or below the soil surface, especially in sites with thick vegetation and deep, wide soil cracks. Adult snakes are more sedentary but move longer absolute distances (mean ± SE = 252 ± 50 m wk−1) than hatchlings (66.3 ± 41 m wk−1). However, hatchling snakes moved longer distances relative to body size (84.4 ± 1.1 body lengths wk−1) than did the previously studied adults (66.0 ± 1.1 body lengths wk−1). Mean and minimum body temperatures of the hatchlings were correlated with mean and minimum air temperatures, respectively.

Keywords

habitathabitat selectionhatchlingmovementssnakethermoregulation

Information

Type
Research Article
Information
Journal of Tropical Ecology , Volume 25 , Issue 2 , March 2009 , pp. 181 - 191
Copyright
Copyright © Cambridge University Press 2009

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References

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