Live fast, die young: trade-offs between fitness components and sexually antagonistic selection on weaponry in Soay sheep.

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Article

Live fast, die young: trade-offs between fitness components and sexually antagonistic selection on weaponry in Soay sheep.

Evolution; international journal of organic evolution - 1 Oct 2006

Robinson Matthew R, Pilkington Jill G, Clutton-Brock Tim H, Pemberton Josephine M, Kruuk Loeske E B

Abstract excerpt

Males are predicted to compete for reproductive opportunities, with sexual selection driving the evolution of large body size and weaponry through the advantage they confer for access to females. Few studies have explored potential trade-offs of investment in secondary sexual traits between different components of fitness or tested for sexually antagonistic selection pressures. These factors may provide...

Topics

Animals
Biological Evolution
Female
Horns
Longevity
Male
Phenotype
Reproduction
Sex Characteristics
Sexual Behavior, Animal
Sheep

Source

Open in PubMed

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PMID: 17133873

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