Retracted: Experimental evidence that maternal corticosterone controls adaptive offspring sex ratios

Pryke, Sarah R., Rollins, Lee.A., Griffith, Simon C. and Buttemer, William A. 2015, Retracted: Experimental evidence that maternal corticosterone controls adaptive offspring sex ratios, Functional ecology, vol. 29, no. 6, pp. 861-861, doi: 10.1111/1365-2435.12232.

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Title Retracted: Experimental evidence that maternal corticosterone controls adaptive offspring sex ratios
Author(s) Pryke, Sarah R.
Rollins, Lee.A.ORCID iD for Rollins, Lee.A. orcid.org/0000-0002-3279-7005
Griffith, Simon C.
Buttemer, William A.
Journal name Functional ecology
Volume number 29
Issue number 6
Start page 861
End page 861
Total pages 1
Publisher Wiley
Place of publication London, England
Publication date 2015-06
ISSN 0269-8463
1365-2435
Keyword(s) corticosterone
glucocorticoids
Gouldian Finch
maternal effects
sex ratios
Summary 1. Sex allocation theory has received considerable attention, yet the mechanism(s) by which mothers skew offspring sex ratios remain unknown. In birds, females are the heterogametic sex, which potentially gives them control of whether gametes will be male or female. How females might control the sex of the gamete is unclear, but one possibility is that variation in steroid hormones may mediate this process. 2. We experimentally altered circulating levels of corticosterone in female Gouldian finches (Erythrura gouldiae), a species that demonstrates both extreme stress responses and extreme offspring sex ratio biases when breeding with a low-quality (genetically incompatible) partner. 3. During egg production, individual females received both corticosterone and metyrapone (a corticosterone-synthesis inhibitor) implants, in random order, to induce both high and low levels of circulating stress hormones (within physiological limits). 4. We found that females with elevated corticosterone levels produced male-biased sex ratios, but when the same females were treated with metyrapone they produced female-biased offspring sex ratios. 5. These stress responses are adaptive because females constrained to breeding with low-quality males can substantially increase their fitness by overproducing sons. Changes in maternal corticosterone levels during stressful situations, such as the quality of a breeding partner, may provide an endocrine mechanism that can be exploited for strategic sex allocation.
Language eng
DOI 10.1111/1365-2435.12232
Field of Research 060201 Behavioural Ecology
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category CN Other journal article
ERA Research output type X Not reportable
Copyright notice ©2014, Wiley
Persistent URL http://hdl.handle.net/10536/DRO/DU:30060951

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