The main issues addressed by this project are related to the evolution of reproductive interactions driven by sexual conflict, which arises because the difference of interest, in reproductive terms, between males and females of the same species. Sexual conflict explains, among many other things, the evolution of traits that increase the reproductive success of one of the sexes at the expense of the other sex’ fitness, and often leads to antagonist sexual selection. This conflict explains relevant aspects of the biology of reproduction and population viability. However, our understanding of its evolutionary implications is limited by the absence of knowledge related to the role of sexual conflict underlying sexual selection dynamics or the architecture of social and sexual interactions (socio-sexual networks). That is why, having this lack of knowledge, the framework of tools encompassed within the network analysis set (Network Theory) will be an important support for this project, allowing us to understand the evolutionary causes of sexual selection, population subdivision and its consequences, addressing issues of sexual conflict, and experimental evolution among others, from an evolutionary point of view. With the framework mentioned above and this frame of network analysing tools, we want to characterise the structure of networks in a system dominated by intense sexual conflict. Attached to this we want to determine if the architecture of socio-sexual networks is shaped by selection history in relation to the presence or absence of sexual selection and metapopulation structure(manipulated through experimental evolution). Also, we wantto explore, within an approximation of selection experiments, the role of metapopulational structure (population subdivision) on the evolution of socio-sexual networks.And Finally, is known that the social group structure is a cornerstone of evolutionary processes based on cooperation and competition (including sexual competition). So, one of the main (and most important) objectives of this thesis is to know if the ability of individuals to modulate their social environment is influenced by their selection history.