How incubation temperature influences the physiology and growth of embryonic lizards

Booth, D. T., Thompson, M. B. and Herring, S. (2000) How incubation temperature influences the physiology and growth of embryonic lizards. Journal of Comparative Physiology B, 170 4: 269-276. doi:10.1007/s003600000097

Author Booth, D. T.
Thompson, M. B.
Herring, S.
Title How incubation temperature influences the physiology and growth of embryonic lizards
Journal name Journal of Comparative Physiology B   Check publisher's open access policy
ISSN 0174-1578
Publication date 2000-06
Sub-type Article (original research)
DOI 10.1007/s003600000097
Volume 170
Issue 4
Start page 269
End page 276
Total pages 8
Place of publication Berlin, Germany
Publisher Springer-Verlag
Collection year 2000
Language eng
Subject C1
270699 Physiology not elsewhere classified
270799 Ecology and Evolution not elsewhere classified
779903 Living resources (flora and fauna)
780105 Biological sciences
Formatted abstract
Eggs of two small Australian lizards, Lampropholis guichenoti and Bassiana duperreyi, were incubated to hatching at 25 °C and 30 °C. Incubation periods were significantly longer at 25 °C in both species, and temperature had a greater effect on the incubation period of B. duperreyi (41.0 days at 25 °C; 23.1 days at 30 °C) than L. guichenoti (40.1 days at 25 °C; 27.7 days at 30 °C). Patterns of oxygen consumption were similar in both species at both temperatures, being sigmoidal in shape with a fall in the rate of oxygen consumption just prior to hatching. The higher incubation temperature resulted in higher peak and higher pre-hatch rates of oxygen consumption in both species. Total amount of oxygen consumed during incubation was independent of temperature in B. duperreyi, in which approximately 50 ml oxygen was consumed at both temperatures, but eggs of L. guichenoti incubated at 30 °C consumed significantly more (32.6 ml) than eggs incubated at 25 °C (28.5 ml). Hatchling mass was unaffected by either incubation temperature or the amount of water absorbed by eggs during incubation in both species. The energetic production cost of hatchling B. duperreyi (3.52 kJ · g−1) was independent of incubation temperature, whereas in L. guichenoti the production cost was greater at 30 °C (4.00 kJ · g−1) than at 25 °C (3.47 kJ · g−1). Snout-vent lengths and mass of hatchlings were unaffected by incubation temperature in both species, but hatchling B. duperreyi incubated at 30 °C had longer tails (29.3 mm) than those from eggs incubated at 25 °C (26.2 mm). These results indicate that incubation temperature can affect the quality of hatchling lizards in terms of embryonic energy consumption and hatchling morphology.

Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Biological Sciences Publications
Ecology Centre Publications
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Created: Tue, 10 Jun 2008, 11:41:45 EST