There is no information related to demographic parameters for Mishana Tyrannulet. BirdLife International (2017) estimates a global population size in the range 2500-9999 individuals, but it is unclear whether this estimate includes the San Martín population. The estimate also does not account for recent discoveries in clay-soil and peatland habitats adjacent to the Nanay Basin (Díaz-Alván et al. 2017). Essentially no information is available pertaining to dispersal in this species, but Díaz-Alván et al. (2017) report its presence on a floodplain peatland that has likely existed in its domed, ombrotrophic state for less than one thousand years. Thus, moderate dispersal between habitat patches must occur at least rarely (Socolar et al. 2018).