Table 3.

Types of descriptors.

	Abreviation	Description	Type of data
1	V. riparia	Presence of the species in the plot	binary
2	V. hybrids	Presence of hybrids or introgressed individuals in the plot	binary
3	V. aestivalis	Presence of the species in the plot	binary
4	V. rupestris	Presence of the species in the plot	binary
5	V. cinerea / V. berlandieri	Presence of the species in the plot	binary
6	M. rotundifolia	Presence of the species in the plot	binary
1	Dip30	Number of trees with a diameter larger than 30 cm	quantitative
2	D1030	Number of trees with a diameter between 10 and 30 cm	quantitative
3	Dim10	Number of trees with a diameter smaller than 10 cm	quantitative
4	Islnd	Plot located on an island	binary
5	RipFo	Plot located in a riparian forest	binary
6	Tce1	Plot located on the first alluvial terrace	binary
7	Tce2	Plot located on the second alluvial terrace	binary
8	NonAl	Plot located outside the influence of flooding	binary
9	C.O.	Canopy openess in percentage	quantitative
10	CanoH	Height of the canopy in meters	quantitative
11	UndCa	Height of the undercanopy in meters	quantitative
12	NVitC	Number of Vitis in the canopy	quantitative
13	DmaVC	Maximum diameter of the Vitis	quantitative
14	NVitB	Number of Vitis in the bush strata (2 to 7 m)	quantitative
15	NMusC	Number of Muscadinia in the canopy	quantitative
16	DmaMC	Maximum diameter of Muscadinia in cm	quantitative
17	NParC	Number of Parthenocissus in the canopy	quantitative
18	DmaPC	Maximum diameter of Parthenocissus in cm	quantitative
19	NParB	Number of Parthenocissus in the bush strata (2 to 7m)	quantitative
20	PartH	Ground covered by Parthenocissus up to 50 cm	semi-quantitative
21	VitiH	Ground covered by Vitis up to 50 cm	semi-quantitative