Tree growth is more limited by drought in rear-edge forests most of the times

Camarero, J. Julio; Gazol, Antonio; Sangüesa-Barreda, Gabriel; Vergarechea, Marta; Alfaro-Sánchez, Raquel; Cattaneo, Nicolás; Vicente-Serrano, Sergio M.

doi:10.1186/s40663-021-00303-1

Forest Ecosystems

Table 1 Main characteristics of each site and mean tree-ring width (and standard deviation) and dendrochronological statistics for the period 1950–2000

From: Tree growth is more limited by drought in rear-edge forests most of the times

Species	Site name	Site type	Latitude (N)	Longitude (−W, +E)	Elevation (m a.s.l.)	Dbh (cm)	No. trees (No. radii)	Timespan	TRW (mm)	SD (mm)	CV	rbar	EPS
Abies alba	Gamueta	Northern	42.88	−0.78	1400	58.4	22 (43)	1558–2018	1.43a	0.97	0.68	0.26	0.94
	Bujaruelo	Intermediate	42.71	−0.13	1420	47.2	16 (32)	1882–2017	3.41b	1.63	0.48	0.29	0.89
	Guara	Rear edge	42.30	−0.12	1428	39.0	19 (38)	1887–2011	3.59b	1.37	0.38	0.46	0.94
Fagus sylvatica	Betato	Northern	42.71	−0.33	1841	38.9	15 (30)	1895–2017	2.03b	1.08	0.53	0.55	0.97
	Monrepos	Intermediate	42.37	−0.37	1560	36.3	16 (32)	1877–2011	1.58b	0.94	0.59	0.36	0.95
	Poyales	Rear edge	42.10	−2.25	1400	42.0	12 (24)	1785–2017	0.89a	0.49	0.55	0.46	0.95
Pinus sylvestris	Selva de Oza	Northern	42.83	−0.72	1272	47.0	15 (30)	1910–2017	1.52b	0.75	0.49	0.46	0.89
	Monrepos	Intermediate	42.34	−0.40	1560	40.6	18 (36)	1860–2009	1.29b	0.73	0.57	0.45	0.95
	Corbalán	Rear edge	40.43	−0.97	1300	38.4	28 (56)	1800–2014	0.67a	0.46	0.68	0.60	0.97
Pinus uncinata	Tessó del Son	Northern	42.58	1.03	2239	63.5	36 (71)	1537–2017	1.23a	0.88	0.72	0.36	0.94
	Vinuesa	Intermediate	42.00	−2.73	2050	72.0	27 (54)	1559–2015	1.11a	0.80	0.72	0.33	0.95
	Valdelinares	Rear edge	40.37	−0.39	1955	51.8	35 (68)	1730–2006	1.10a	0.82	0.75	0.37	0.97
Quercus petraea	Posadas	Northern	42.22	−3.06	1180	38.6	13 (25)	1881–2014	1.09a	0.56	0.52	0.42	0.95
	Monsomero	Intermediate	41.35	−1.35	975	31.2	21 (41)	1935–2014	1.00a	0.67	0.67	0.54	0.98
	Valdemeca	Rear edge	40.18	−1.77	1576	33.5	16 (30)	1922–2014	2.34b	0.93	0.40	0.35	0.93
Quercus robur	Beluntza	Northern	42.95	−2.89	462	49.5	17 (34)	1824–2017	1.21a	0.47	0.39	0.45	0.94
	Izki	Intermediate	42.68	−2.48	760	48.6	34 (68)	1863–2008	1.63a	0.96	0.59	0.25	0.90
	Moncayo	Rear edge	41.81	−1.83	1202	38.2	16 (32)	1885–2000	1.31a	0.65	0.50	0.31	0.88

Abbreviations: TRW Tree-ring width, SD Standard deviation, CV Coefficient of variation, rbar mean correlation between series, EPS Expressed population signal. The Dunnett multiple comparison test was used to compare TRW between populations of the same species and significant differences (p < 0.05) are indicated by different letters

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