Independent effects of grazing and tide pool habitats on the early colonisation of an intertidal community on western Antarctic Peninsula

Table 2 Summary of effects of habitat (either tide pool or emergent rock), grazing treatment (total exclusion, control, and procedural control), and randomly selected blocks on the temporal patterns of taxonomic richness, Shannon’s diversity, and the structure of periphyton rocky-shore communities

Source	d.f.	Taxon richness		Shannon’s diversity		Community structure
		F	P	F	P	pseudo F	P (perm)
Habitat = H	1	10.501	0.005	7.252	0.017	19.257	0.001
Treatment = T	2	6.090	0.010	7.795	0.005	10.693	0.001
Block	3	17.240	0.039	16.531	0.051	6.879	0.001
H x T	2	0.991	0.400	0.319	0.731	1.396	0.252
Residual	15

Taxon richness and Shannon’s diversity were analysed with ANOVA; community structure was analysed with PERMANOVA, based on Bray-Curtis dissimilarities

ISSN: 0717-6317