Final answer:
Migration can disrupt Hardy-Weinberg equilibrium by introducing new alleles and altering allele frequencies in a population, but it does not always cause disequilibrium as other evolutionary forces also play a role.
Step-by-step explanation:
No, migration does not always cause Hardy-Weinberg (HW) disequilibrium in a population. Migration is one of several factors, including genetic drift, mutation, and natural selection, which can disrupt HW equilibrium. The principle of HW equilibrium provides a mathematical model for expected genetic variation in a static population, where allele frequencies remain constant, and evolutionary forces are not at play. However, when migration occurs, it can introduce new alleles into a population and alter allele frequencies. This can lead to genetic variation deviating from HW expectations. If the migrating individuals have different allele frequencies than the resident population, it's highly possible that migration will disrupt HW equilibrium, at least temporarily.