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Effect of soil moisture on yolk and fat distribution in hatchling lizards from natural nests

Christian, Keith A., Lawrence, W.T. and Snell, H.L. (1991). Effect of soil moisture on yolk and fat distribution in hatchling lizards from natural nests. Comparative Biochemistry and Physiology - A Physiology,99(1-2):13-19.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 10 times in Scopus Article | Citations

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Title Effect of soil moisture on yolk and fat distribution in hatchling lizards from natural nests
Author Christian, Keith A.
Lawrence, W.T.
Snell, H.L.
Journal Name Comparative Biochemistry and Physiology - A Physiology
Publication Date 1991
Volume Number 99
Issue Number 1-2
ISSN 0300-9629   (check CDU catalogue  open catalogue search in new window)
Scopus ID 2-s2.0-0026011869
Start Page 13
End Page 19
Total Pages 7
Field of Research BIOLOGICAL SCIENCES
Abstract
1. Soil water potentials in natural nests of the Cuban iguana Cyclura nubila were monitored throughout incubation, and the energy stores of young iguanas from the nest were examined after hatching. There was a strong negative correlation between %yolk and %fat (percentage of whole hatchling mass) in hatchlings demonstrating the conversion of yolk to fat during development.

2. The sizes of the carcasses (excluding yolk and fat) of hatchlings were not related to soil water potential of the nest.

3. However, hatchlings from drier nests had more yolk and less fat than hatchlings from wetter nests.

4. Inter-nest variability in soil water potential has previously been shown to influence the survival of hatchling Galapagos iguanas. This study suggests that the mechanism by which soil water potential influences subsequent survival is through its effect on the amount of yolk that is converted into fat before hatching.
DOI http://dx.doi.org/https://doi.org/10.1016/0300-9629(91)90226-3   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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Created: Fri, 29 Aug 2014, 20:28:03 CST by Anthony Hornby