Figure 5: Mean seed mortality (± SE) across all treatments and both years

Influence of a freshwater pulse

After 146 days of experimentation, a freshwater pulse was conducted on conclusion of the first year of the experiment to determine if thermally affected sites and control locations would respond differently to a freshwater pulse after being subject to different temperature treatments. Overall, the pulse significantly increased germination in control and thermally affected seeds by 400 % and 180 %, respectively (ANOVA; p < 0.001, Figure 6). There were no significant interaction effects between pulse and seed location and thus the pulse was not repeated for the second year.