Regional-scale analysis of subtidal rocky shore community

Table 7 Major contributor species to the CFA axis

Correlation type	Axis 1		Axis 2
Correlation type	Species	Contribution to the inertia (%)	Species	Contribution to the inertia (%)
Positive	Aiptasia mutabilis f. couchi	7.84	Pterosiphonia complanata	3.05
	Solieria chordalis	7.20	Ectocarpales	2.74
	Nemertesia ramosa	6.07	Asterias rubens	2.70
	Hydrallmania falcata	5.72	Saccorhiza polyschides	2.58
	Bougainvillia muscus	5.05	Hypoglossum hypoglossoides	1.66
	Gracilaria multipartita	4.03	Marthasterias glacialis	1.43
	Ulva spp.	3.05
	Morchellium argus	2.94
	Ophiothrix fragilis	2.79
	Nemertesia antennina	2.65
	Chondria dasyphylla	2.41
	Chondracanthus acicularis	1.69
	Tethya aurantium	1.38
	Polymastia penicillus	1.47
	Sabella spallanzanii	1.66
Negative	Corallinaceae	1.47	Plocamium cartilagineum	2.45
	Delesseria sanguinea	1.07	Balanus spp.	9.36
	Laminaria hyperborea	1.39	Meredithia microphylla	2.32
			Dysidea fragilis	2.93
			Phyllophora crispa	1.14
Total		59.88		32.36

Retained species were those which exhibit contribution superior to 1/N (with N = total number of species)

ISSN: 1438-3888