In the LF1 on the island of Sikuya population shifted to the eastern end of the island. T-320 (Sikuya Oeste), occupied during the MF, was abandoned, the population relocating to T-319. T-320A has a a population index value of 157, compared to 204 for T-319A (3.8 ha). This represents an annual population growth rate of 0.05%. While below the phase average, this growth could suggest that Sikuya lay outside the radius of the LF1 Taraco Peninsula polity.
It should be noted, though, that Sikuya was not at this point an island. Lower lake levels (see below) mean that during the LF1 T-319 was a lakeshore settlement much like Chiripa, Chiaramaya and others.