Source of Variation SS df MS F F crit P-value Seasons 20.7204 1 20.7204 15.7683 4.8443 NS Stations 48.7346 11 4.4304 3.3716 2.8179 NS Error 14.4546 11 1.3141       Total 83.9096 23

Table 2: The two-way ANOVA between stations and seasons.