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Reproductive ecology of the Mountain Dragon, Rankinia (Tympanocryptis) diemensis (Reptilia: Squamata: Agamidae) in Tasmania


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Stuart-Smith, JF and Swain, R and Welling, A (2005) Reproductive ecology of the Mountain Dragon, Rankinia (Tympanocryptis) diemensis (Reptilia: Squamata: Agamidae) in Tasmania. Papers and Proceedings of the Royal Society of Tasmania, 139. pp. 23-28. ISSN 0080-4703

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The mountain dragon, Rankinta (7ympanocryptis) diemensis (Gray, 1841), is the only member of the Agamidae in Tasmania. It occurs in
some of the coldest regions occupied by any dragon in Australia, and is found in a variety of habitats ranging from coastal heath to alpine
scrub. This paper examines the reproductive ecology of R. diemensis in the most southerly range of its distribution, providing baseline
data on timing of reproductive events, reproductive cycles, nesting behaviour and ovipositioning, clutch characteristics and incubation
conditions. Winter torpor lasts approximately seven months with males emerging in early September and spermatogenesis occurring from
September-November. Females emerge later, with vitellogenesis occurring from September-December. Gravid females may be found
between October and January, but females are non-vitellogenic from late December until the following season. The first clutch is typically
laid from October--December, with a variable clutch size (2-11 eggs). Females store sperm and a second clutch may be laid five weeks after
the first. Eggs incubated in artificial enclosures at low altitude hatched after 72--106 days, after experiencing an average daily temperature
of 19°-22°C, and a range of 50-39°C.

Item Type: Article
Keywords: Royal Society of Tasmania, RST, Van Diemens Land, natural history, science, ecology, taxonomy, botany, zoology, geology, geography, papers & proceedings, Australia, UTAS Library
Journal or Publication Title: Papers and Proceedings of the Royal Society of Tasmania
Page Range: pp. 23-28
ISSN: 0080-4703
Collections: Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
Additional Information:

Copyright Royal Society of Tasmania

Date Deposited: 18 May 2012 01:50
Last Modified: 15 Sep 2017 01:06
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