First published online May 2, 2008
Journal of Experimental Biology 211, 1535-1540 (2008)
Published by The Company of Biologists 2008
doi: 10.1242/jeb.016071
Alternating egg-brooding behaviors create and modulate a hypoxic developmental micro-environment in Children's pythons (Antaresia childreni)
Zachary R. Stahlschmidt* and
Dale F. DeNardo
School of Life Sciences, Arizona State University, Tempe, AZ 85287-460,
USA

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Fig. 1. Egg oxygen consumption rate
( O2) from six
A. childreni clutches under multiple oxygen tensions during early
(dotted line), middle (solid line) and late (broken line) stages of
development. Crosses indicate PO2 sub-norm, and
inverted triangles indicate critical oxygen tension for each stage of
development.
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Fig. 2. Example of intra-clutch PO2
(PO2clutch) during brooding at the late stage
of development in A. childreni. Vertical lines denote the beginning
of female postural adjustments.
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© The Company of Biologists Ltd 2008