Environmental drivers of plant assemblages: are there differences between palustrine and lacustrine wetlands? A case study from the northern Apennines (Italy) | Knowledge and Management of Aquatic Ecosystems

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Table 2

Correlations between DCA axes 1 and 2 and environmental factors.

Explanatory variables	Axis 1 Palustrine	Axis 2 Palustrine	Axis 1 Lacustrine	Axis 2 Lacustrine
Environmental physical parameters
Wetland cover	0.35^*	0.36^*	n.s.	n.s.
Permanent wetland	n.s.	n.s.	n.s.	n.s.
Water depth	0.33^*	n.s.	−0.22^*	0.31^*
Wetland area	n.s.	n.s.	n.s.	n.s.
Altitude	n.s.	0.39^*	0.25^*	n.s.
Rainfall	n.s.	0.59^***	n.s.	n.s.
Temperature	n.s.	−0.35^*	n.s.	0.29^*
Geological types
Chaotic complex	n.s.	−0.35^*	n.s.	n.s.
Clay limestone	n.s.	n.s.	n.s.	n.s.
Pelagic marls	–	–	n.s.	n.s.
Sandstone/arenaceous marls	n.s.	0.40^***	n.s.	n.s.
Serpentinites	–	–	n.s.	n.s.
Skeletal limestone	–	–	n.s.	n.s.

Superscripts indicate the P values of the permutation test. n.s. > 0.05; *: ≤ 0.05; ***: < 0.001.

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