Conservation biology: Science, sex and the kakapo

@article{Sutherland2002ConservationBS,
  title={Conservation biology: Science, sex and the kakapo},
  author={William J. Sutherland},
  journal={Nature},
  year={2002},
  volume={419},
  pages={265-266}
}
Sex-allocation theory predicts how the sex ratio of offspring should vary with the mother's physical condition. Applying this theory has helped in retrieving a charismatic parrot from the edge of extinction. 
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References

SHOWING 1-8 OF 8 REFERENCES
Effects of supplementary feeding on the offspring sex ratio of kakapo: a dilemma for the conservation of a polygynous parrot
TLDR
There was a significant excess of males in the clutches of females provided with supplementary food, suggesting that changes need to be made to the feeding regime to increase recruitment of females in the kakapo. Expand
Brood sex ratios, female harem status and resources for nestling provisioning in the great reed warbler (Acrocephalus arundinaceus)
TLDR
Three studies of polygynous bird species, including the authors' own, have demonstrated the same pattern of a male-biased offspring sex ratio in primary compared with secondary nests, and it is found that great reed warbler males increased their share of parental care as the proportion of sons in the brood increased. Expand
Offspring sex ratios in tree swallows: females in better condition produce more sons
TLDR
In tree swallows, investment in sons has the potential for higher fitness returns than investment in daughters, assuming that sons in better condition have greater reproductive success. Expand
Experimental demonstration that offspring sex ratio varies with maternal condition.
TLDR
Experimental evidence is provided of an adaptive, facultative adjustment of sex ratio in response to changes in maternal condition in wild birds, which is commonly tested in wild populations. Expand
Saving the Kakapo: the conservation of the world's most peculiar parrot
TLDR
The conservation history and current status of the Kakapo Strigops habroptilus, a large New Zealand parrot which has been reduced to only 54 individuals through predation by introduced mammals, is reviewed and threatened with extinction is described. Expand
Extreme bias in sex allocation in Eclectusparrots
TLDR
Control over sex allocation in eclectus parrots is one of the most extreme reported from birds, and Monte–Carlo simulations show that these runs of same–sex clutches defy expectation if the sex of chicks within each clutch is independent of the previous clutch. Expand
Natural Selection of Parental Ability to Vary the Sex Ratio of Offspring
Theory and data suggest that a male in good condition at the end of the period of parental investment is expected to outreproduce a sister in similar condition, while she is expected to outreproduceExpand