background : the study of reproductive behaviors is one of the important factors of population. it plays a pivotal role in the growth of population.  reproductive behaviors are influenced by the cultural values and traditional beliefs of individuals. the aim of the present study is to compare reproductive behaviors of nomadic and non-nomadic tribes in the semirom province, and determine factors...

in ancient times, nomad tribes of the north caucasus, passing through caucasian natural gates, most importantly among them, darial and derbent, plundered wealthy southern regions. during of reign of khosrow anushirvan, the sasanian king built strong fortresses along these passages, and caucasian nomadic tribes of the north caucasus could no longer pass through these two passages to invade south...