  Populations of oscillators can display a variety of synchronization patterns
depending on the oscillators' intrinsic coupling and the coupling between them.
We consider two coupled, symmetric (sub)populations with unimodal frequency
distributions and show that the resulting synchronization patterns may resemble
those of a single population with bimodally distributed frequencies. Our proof
of the equivalence of their stability, dynamics, and bifurcations, is based on
an Ott-Antonsen ansatz. The generalization to networks consisting of multiple
(sub)populations vis-\`a-vis networks with multimodal frequency distributions,
however, appears impossible.
