||Models of sexual selection primarily involve Fisher\’s runaway sexual selection, selection for good genes, handicap principle and sexual conflict. These processes are, however, significantly influenced by global environmental change which cause direct and indirect types of environmental pollution. In this project, we use a well-known model spider species Pisaura mirabilis in which males exhibit conspicuous form of nuptial feeding (male transfer of nutrient to the female) during courtship to test whether environmental change influences evolution of mating behavior. Specifically, we will investigate both direct effects (i.e., heavy metals accumulation) and indirect effects (i.e., decreased prey availability) of environmental pollution on sexual selection. Furthermore, we deal evolutionary questions regarding physiological costs of nuptial feeding to males. Results of this investigation will have broad implications for the evolution of sexual selection in animals under environmental change.