Funded by Natural Sciences and Engineering Research Council of Canada (NSERC) and Department of Biology, Utah State University.
Interfamily variation in amphibian early life-history traits: raw material for natural selection?
Article first published online: 18 JUN 2012
© 2011 The Authors. MicrobiologyOpen published by Blackwell Publishing Ltd.
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Ecology and Evolution
Volume 2, Issue 7, pages 1637–1643, July 2012
How to Cite
Hopkins, G. R., Gall, B. G., French, S. S. and Brodie, E. D. (2012), Interfamily variation in amphibian early life-history traits: raw material for natural selection?. Ecology and Evolution, 2: 1637–1643. doi: 10.1002/ece3.287
- Issue published online: 6 JUL 2012
- Article first published online: 18 JUN 2012
- Received: 26 April 2012; Revised: 1 May 2012; Accepted: 4 May 2012.
- embryonic development;
- Taricha granulosa;
The embryonic development and time to hatching of eggs can be highly adaptive in some species, and thus under selective pressure. In this study, we examined the underlying interfamily variation in hatching timing and embryonic development in a population of an oviparous amphibian, the rough-skinned newt (Taricha granulosa). We found significant, high variability in degree of embryonic development and hatching timing among eggs from different females. Patterns of variation were present regardless of temperature. We also could not explain the differences among families by morphological traits of the females or their eggs. This study suggests that the variation necessary for natural selection to act upon is present in the early life history of this amphibian.