Table 2. Analyses of variance of the number of species and abundance of gastropods in each treatment.

Site (Si) was random with 2 levels. Habitat type (Ha) and Contaminant (Contam) were fixed and orthogonal, with 2 and 5 levels, respectively; n = 3. Data were pooled when p > 0.25.

Source	df	Number of species		Abundance
		MS	Pseudo-F	MS	Pseudo-F
Site (Si)	1	160.8	10.62**	21.2	1.25ns
Habitat type (Ha)	1	240.9	15.92**	5.3	0.31ns
Contaminant (Contam)	4
C1—Control vs Carbaryl	1	37.5	2.39ns	13.3	0.88ns
C2—Control vs Iron	1	0.0	0.00ns	0.0	0.00ns
C3—Control vs Metal	1	16.7	1.43ns	0.0	0.00ns
C4—Control vs Blank	1	4.4	0.35ns	5.0	0.24ns
Ha × Contam	4
Ha × C1	1	80.7	5.14*	78.5	5.22*
Ha × C2	1	40.0	2.33ns	24.7	1.78ns
Ha × C3	1	73.5	6.32*	96.4	6.30*
Ha × C4	1	16.0	1.26ns	123.8	6.12*
Pooled	49	15.1		17.1
Total	59
Pair-wise tests	Ha × C1 – Control – Short < Long Carbaryl – Short = Long Ha × C3—Control – Short < Long Carbaryl—Short = Long Short turfs —Carbaryl = Control Long turfs – Carbaryl < Control		Ha × C1 – Control – Short < Long Carbaryl – Short = Long Ha × C3 - Control – Short < Long Carbaryl – Short = Long Short turfs – Carbaryl = Control Long turfs – Carbaryl < Control

Notes.

ns, not significant (p > 0.05).

^*p < 0.05.

^**p < 0.01.

Data were log(x + 1); Cochran’s test p < 0.05.