Campus Units

Ecology, Evolution and Organismal Biology

Document Type

Article

Publication Version

Published Version

Publication Date

12-2010

Journal or Book Title

PloS ONE

Volume

5

Issue

12

First Page

e15308

DOI

10.1371/journal.pone.0015308

Abstract

In many reptiles, the thermal regimes experienced by eggs in natural nests vary as a function of ambient weather and location, and this variation has important impacts on patterns of embryonic development. Recent advances in non-invasive measurement of embryonic heart rates allow us to answer a long-standing puzzle in reptilian developmental biology: Do the metabolic and developmental rates of embryos acclimate to local incubation regimes, as occurs for metabolic acclimation by post-hatching reptiles? Based on a strong correlation between embryonic heart rate and oxygen consumption, we used heart rates as a measure of metabolic rate. We demonstrate acclimation of heart rates relative to temperature in embryos of one turtle, one snake and one lizard species that oviposit in relatively deep nests, but found no acclimation in another lizard species that uses shallow (and hence, highly thermally variable) nests. Embryonic thermal acclimation thus is widespread, but not ubiquitous, within reptiles.

Comments

This article is published as Du, Wei-Guo, Hua Ye, Bo Zhao, Daniel A. Warner, and Richard Shine. "Thermal acclimation of heart rates in reptilian embryos." PLoS One 5, no. 12 (2010): e15308. doi: 10.1371/journal.pone.0015308.

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Copyright Owner

Du et al

Language

en

File Format

application/pdf

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