Behavioural Ecology and Self-Organization Group, Centre for Ecological and Evolutionary Studies, University of Groningen, P.O. Box 11103, 9700 CC, Groningen, The Netherlands; School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich, Norfolk, NR4 7TJ, United Kingdom.
Evolution. 2013 Oct;67(10):3071-2. doi: 10.1111/evo.12212. Epub 2013 Aug 13.
Gohli et al. (2013) report a positive relationship between genetic diversity and promiscuity across passerine birds, and suggest that female promiscuity acts as a form of balancing selection, maintaining differences in genetic variation across species. This is an interesting hypothesis, but the enormous variation in genetic diversity present within species is not taken into account in their analyses. This, combined with a small sample size at several levels, makes the relationship between genetic diversity and promiscuity very difficult to interpret. Demonstrating that species-level differences in genetic diversity (if they occur at all) are affected by promiscuity would require a far more comprehensive study than is presently possible.
戈利等人（2013 年）报告称，在雀形目鸟类中，遗传多样性与滥交之间存在正相关关系，并提出雌性滥交是一种平衡选择形式，可以维持物种间遗传变异的差异。这是一个有趣的假设，但他们的分析并未考虑到物种内遗传多样性的巨大差异。再加上在几个层次上的样本量都很小，使得遗传多样性和滥交之间的关系非常难以解释。要证明遗传多样性的物种水平差异（如果确实存在的话）是否受到滥交的影响，需要进行比目前更全面的研究。
