transpopulation

noun

1. The population of transgender people, particularly in a specific region.“I am not aware of any ethnographic or historical projects whose sole focus is some aspect of a Latina/o transpopulation.”
2. The act of altering one or more populations by the introduction of a different population or the removal of a particular subpopulation.“It should be remarked, that as dynasties changed the transpopulation which made Babylon decline was frequently repeated; as under Seleucus, for the benefit of Seleucia, so under the Parthians for the benefit of Ctesiphon, under the Arabs for that of Baghdad.”