Cooperatively breeding superb fairy-wrens show no facultative manipulation of offspring sex ratio despite plausible benefits
We report a long-term study of offspring sex ratios in the cooperatively breeding superb fairy-wren Malurus cyaneus. Detailed study of this species had revealed a suite of potentially strong selection pressures on the sex ratio. First, females gain substantial fitness benefits from the presence of helpers; so females without male helpers would benefit from any strategy that increased the probability of recruiting help, such as overproduction of sons (local resource enhancement hypothesis), but...[Show more]
|Collections||ANU Research Publications|
|Source:||Behavioral Ecology and Sociobiology|
|01_Cockburn_Cooperatively_breeding_superb_2008.pdf||234.18 kB||Adobe PDF||Request a copy|
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.