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Science 13 October 2000:
Vol. 290. no. 5490, pp. 288 - 290
DOI: 10.1126/science.290.5490.288
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Perspectives

EVOLUTION:
The Benefits of Allocating Sex

Stuart A. West, Edward Allen Herre, Ben C. Sheldon

Organisms allocate resources to male and female offspring in a process called sex allocation. In a Perspective, Stuart West and colleagues discuss what sex allocation tells us about evolution by natural selection and how sex allocation can be applied to understanding the mating structure of parasitic protozoans.

S. A. West is at the Institute of Cell, Animal and Population Biology, University of Edinburgh, Edinburgh EH9 3JT, UK. E-mail: stu.west{at}ed.ac.uk E. A. Herre is at the Smithsonian Tropical Research Institute, Republic of Panama. B. C. Sheldon is in the Department of Zoology, University of Oxford, Oxford OX1 3PS, UK.

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Primary sex ratio adjustment to experimentally reduced male UV attractiveness in blue tits.
P. Korsten, C. M. Lessells, A. C. Mateman, M. van der Velde, and J. Komdeur (2006)
Behav. Ecol. 17, 539-546
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Sex ratios under asymmetrical local mate competition in the parasitoid wasp Nasonia vitripennis.
D. M. Shuker, I. Pen, and S. A. West (2006)
Behav. Ecol. 17, 345-352
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How outcrossing hermaphrodites sense the presence of conspecifics and suppress female allocation.
D. Schleicherova, M. C. Lorenzi, and G. Sella (2006)
Behav. Ecol. 17, 1-5
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Sex ratio variation in the cooperatively breeding alpine marmot Marmota marmota.
D. Allaine (2004)
Behav. Ecol. 15, 997-1002
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Maternal Diet and Other Factors Affecting Offspring Sex Ratio: A Review.
C. S. Rosenfeld and R. M. Roberts (2004)
Biol Reprod 71, 1063-1070
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Birth sex ratio and social rank: consistency and variability within and between primate groups.
G. Schino (2004)
Behav. Ecol. 15, 850-856
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Information constraints and the precision of adaptation: Sex ratio manipulation in wasps.
D. M. Shuker and S. A. West (2004)
PNAS 101, 10363-10367
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Striking variation in the sex ratio of pups born to mice according to whether maternal diet is high in fat or carbohydrate.
C. S. Rosenfeld, K. M. Grimm, K. A. Livingston, A. M. Brokman, W. E. Lamberson, and R. M. Roberts (2003)
PNAS 100, 4628-4632
   Abstract »    Full Text »    PDF »
Extremely female-biased sex ratio and lethal male-male combat in a parasitoid wasp, Melittobia australica (Eulophidae).
J. Abe, Y. Kamimura, N. Kondo, and M. Shimada (2003)
Behav. Ecol. 14, 34-39
   Abstract »    Full Text »    PDF »
Variable host quality, life-history invariants, and the reproductive strategy of a parasitoid wasp that produces single sex clutches.
S. A. West, K. E. Flanagan, and H. C. J. Godfray (2001)
Behav. Ecol. 12, 577-583
   Abstract »    Full Text »    PDF »
Constraints in the Evolution of Sex Ratio Adjustment.
S. A. West and B. C. Sheldon (2002)
Science 295, 1685-1688
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Science. ISSN 0036-8075 (print), 1095-9203 (online)