Posukh O L, Vibe V P, Sukernik R I
Genetika. 1990 Sep;26(9):1628-36.
Demographic data of genetic interest were studied in three separate populations of Tungus-speaking Evens. They are characterized as expanding populations, rather as a result of migration and admixture, than due to natural increase. The mean and variance of livebirths per female, whose reproduction was completed, were 7.23 and 13.07, respectively. The Crow's index of the opportunity for selection (It) and its components (Im and If) were found to be 0.62, 0.30 and 0.25, respectively. The values of Im and If appeared to be essentially lower than those previously found in other northern populations.
对三个讲通古斯语的埃文人独立群体中具有遗传研究价值的人口统计学数据进行了研究。这些群体的特征是人口不断增长，其原因主要是迁移和混合，而非自然增长。已完成生育的女性平均活产数和方差分别为7.23和13.07。发现克劳氏选择机会指数（It）及其组成部分（Im和If）分别为0.62、0.30和0.25。Im和If的值似乎明显低于先前在其他北方群体中发现的值。
