Department of Mathematics and Statistics, Auburn University, Auburn, AL, 36849, USA.
Department of Biological Sciences, Auburn University, Auburn, AL, 36849, USA.
Bioessays. 2019 Dec;41(12):e1900016. doi: 10.1002/bies.201900016. Epub 2019 Oct 29.
Studies of multiple paternity in mammals and other animal species generally report proportion of multiple paternity among litters, mean litter sizes, and mean number of sires per litter. It is shown how these variables can be used to produce an estimate of the probability of reproductive success for a male that has mated with a female. This estimate of male success is more informative about the mating system that alternative measures, like the proportion of litters with multiple paternity or the mean number of sires per litter. The probability of success for a mated male can be measured both theoretically and empirically, and gives an estimate of the intensity of sperm competition and of a male's "confidence of paternity" upon mating. The probability of success for mated males for ten "exemplar" species of mammals is estimated and they are compared for insights into the functioning of their mating systems.
对哺乳动物和其他动物物种的多父系的研究通常报告窝仔中的多父系比例、平均窝仔大小和每窝平均父系数量。本文展示了如何利用这些变量来估计与雌性交配的雄性的生殖成功概率。与替代指标（如多父系窝仔的比例或每窝平均父系数量）相比，这种对雄性成功的估计更能说明交配系统的信息。交配雄性的成功概率可以从理论和经验上进行测量，并提供对精子竞争强度和雄性交配时“父权信心”的估计。对十种“典型”哺乳动物物种的交配雄性的成功概率进行了估计，并对它们进行了比较，以深入了解它们的交配系统的功能。
