Timing of reproduction of paedomorphic and metamorphic Ambystoma talpoideum
Journal Article
·
· American Midland Naturalist; (United States)
- Savannah River Ecology Laboratory, Aiken, SC (United States)
Facultative paedomorphosis in salamanders is a plastic trait that may represent an adaptation to fluctuating environmental conditions. The author compared the timing of reproduction in paedomorphic and terrestrial-morph Ambystoma talpoideum at the same pond. Paedomorphic adults laid eggs approximately 6 wk earlier than terrestrial morphs. Early egg-laying and subsequent growth of hatchlings resulted in a significant size advantage for larvae from paedomorphic parents at the time that terrestrial-morph eggs hatched. These observations suggest that, under certain environmental conditions, facultative paedomorphosis is advantageous. 36 refs.
- OSTI ID:
- 6429301
- Journal Information:
- American Midland Naturalist; (United States), Vol. 129:2; ISSN 0003-0031
- Country of Publication:
- United States
- Language:
- English
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