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Extreme Reversed Sexual Dichromatism in a Bird Without Sex Role Reversal

Heinsohn, Robert; Legge, Sarah; Endler, John A

Description

Brilliant plumage is typical of male birds, reflecting differential enhancement of male traits when females are the limiting sex. Brighter females are thought to evolve exclusively in response to sex role reversal. The striking reversed plumage dichromatism of Eclectus roratus parrots does not fit this pattern. We quantify plumage color in this species and show that very different selection pressures are acting on males and females. Male plumage reflects a compromise between the conflicting...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
URI: http://hdl.handle.net/1885/81952
Source: Science
DOI: 10.1126/science.1112774

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