Table 1. Comparison of power function exponents (w) for the species-time relationship based on a complete-nested calculation method.

Sampling time clusters	10 m			13 m			17 m
	2–26	2–29	3–30	2–28	2–31	3–32	2–27	2–30	3–31
All	0.14	0.20	0.17	0.17	0.13	0.20	0.22	0.19	0.18
T1	0.07	0.01	0.04	0.06	0.01	0.01	0.05	0.08	0.03
T2	0.27	0.19	0.24	0.22	0.12	0.14	0.12	0.09	0.19
T3+T4	0.39	0.29	0.21	0.15	0.16	0.09	0.14	0.09	0.11

Five time clusters were identified: T1 (16 November–1 December),T2 (26 January–10 March), T3 (14 May–14 June), T4 (15 June–8 July 8) and T5 (9 July–24 September). T3 and T4 were analyzed together to reflect species turnover across a period from the beginning of water level rise to the end of river water intrusion. T5 was omitted from discrete analysis because there were a small number of time points in this interval.