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Dominant rams lose out by sperm depletion

A waning success in siring counters a ram's high score in competition for ewes.

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Figure 1: Evidence for sperm depletion in Soay sheep rams.

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Correspondence to Brian T. Preston.

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Preston, B., Stevenson, I., Pemberton, J. et al. Dominant rams lose out by sperm depletion. Nature 409, 681–682 (2001). https://doi.org/10.1038/35055617

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