Table 2.

Number of samples analyzed and main ecological features per site.

Site names	ID Pop	Samples number	Bioclimate	Vegetation series (types)	VC%		Human disturbances
					Trees	Shrubs	GR	WC	GA	FI
1. Tlat Taghramt	TLT	28 [10]c	Subhumid/humid	Kermes oak matorral (Quercus coccifera)	50	50	0	2	2	1
2. Bni Harchim	BNH	24(3)d [10]	Subhumid/humid	Matorral dominated by wild olive (O. e. subsp. e. var. sylvestris), pistachio mastic tree (Pistacia textitlentiscus) and Mediterranean dwarf palm (Chamaerops humilis)	10	50	0	2	3	0
3. Bni Arous	BNA	26 [10]	Dry subhumid		10	60	0	2	2	1
4. Dar Chaoui	DAC	29 [10]	Dry subhumid		20	90	0	2	2	1
5. Dar Akouba	DAR	19 [8]	Dry subhumid		15	60	1	3	2	1
6. Tni Sidi Yemenia	TNY	31 [10]	Dry subhumid		40	20	0	1	3	0
7. Mesmoudaa	MES	31 [10]	Dry subhumid		60	30	1	2	2	1
8. El Ksiba	KSB	26 [11]	Semiarid	Matorral with wild olive (O. e. subsp. e. var. sylvestris), barbary thuya (Tetraclinis articulata) and pistachio mastic tree (Pistacia lentiscus)	20	80	0	1	2	0
9. Moulay Bouazza	MBO	21 [8]	Semiarid	Barbary thuya (Tetraclinis articulata) woodlands	20	5	0	1	3	0
10. Asnib	ASN	29 [10]	Semiarid	Barbary thuya (Tertraclinis articulata) and Phoenician juniper (Juniperus phoenicea) woodlands	20	70	0	2	3	0
11. Argana	ARG	33(11)d [15]	Semiarid	Barbary thuya (Tetraclinis articulata), Argan	10	30	0	2	3	0
12. Immouzzer	IMO	25 [9]	Semiarid	tree (Argania spinosa) and	20	30	0	2	3	0
13. Issi-Adgil	ISS	15 [8]	Semiarid	Moroccan wild olive (O. e. subsp. maroccana) woodlands	40	80	0	1	2	0

Vegetation series (types) relates to Benabid and Fennane (1994). VC%, vegetation cover for tree and shrub layers, estimated by following the Braun-Blanquet cover-abundance scale method (1964). Human disturbance was qualitatively estimated on four scales: 0: absent, 1: low, 2: medium, and 3: intense. GR, grafting (grafting on O. europaea subsp. europaea var. sylvestris); WC, wood cutting; GA, grazing; FI, fire frequency. The number of sampled sites is identical to Figure 1.

^aPopulations within the traditional agroecosystem area,

^bstreamside population,

^cbold numbers between [ ] indicate the number of trees sampled in each population, and

^dthe numbers between brackets indicate additional samples from streamside location.