Fig. 3.

Natural pollen reception by ecological stage of Trithuria submersa. Pollen reception occurs only in partially or fully emergent reproductive units. The percentage of reproductive units (black bars) or carpels per reproductive unit (white bars) that were naturally pollinated at each of the four ecological stages (1–4) is shown for each population. (A) Kulunilup Swamp (2008; n = 25, 25, 82, 35). (B) Frying Pan Swamp (2009; n = 15, 11, 17, 13). The position of the water level (grey bar) is represented relative to the reproductive unit (black circles). Error bars = 95 % confidence intervals.