Brood Reduction via Intra-clutch Variation in Testosterone - An Experimental Test in the Great Tit

In birds, yolk androgen concentrations in eggs can increase or decrease over the laying sequence and common hypotheses hold that this serves to favour the competitive ability of either first- or last-hatched chicks depending on the prevailing conditions, and thus promote brood reduction or maintenan...

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Bibliographic Details
Main Authors: Podlas, Katarzyna, Helfenstein, Fabrice, Richner, Heinz
Format: Online
Language:English
Published: Public Library of Science 2013
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3577683/