Table 1.

Description of sites. Latitude (lat) and longitude (long) are given in decimal degrees, altitude (alt) in m, precipitation (precip) in mm and temperature (temp) in degrees Celsius. Soil types are taken from Quesada et al. [5] and remaining information is taken from Patiño et al. [20]. Sites in bold are nitrogen-limited according to equation (2.2).

plot	plot code	lat	long	alt.	precip	temp	soil type	forest type
AGP-12	Colombia	−3.74	−70.31	109	3216	25.8	Plinthosol	Terra firme
ALP-11	Peru	−3.95	−73.43	126	2763	26.34	Gleysol	Terra firme
ALP-12	Peru	−3.95	−73.44	133	2763	26.34	Alisol	Terra firme
ALP-21	Peru	−3.95	−73.44	142	2763	26.34	Arenosol	Terra firme
ALP-22	Peru	−3.95	−73.44	137	2763	26.34	Plinthosol	Terra firme
ALP-30	Peru	−3.95	−73.43	144	2763	26.34	Arenosol	Tall caatinga
BNT-04	Brazil	−2.63	−60.15	103	2272	27.08	Ferrasol	Terra firme
BOG-02	Ecuador	−0.70	−76.48	271	3252	25.67	Cambisol	Terra firme
CAX-01	Brazil	−1.74	−51.46	15	2314	26.88	Acrisol	Terra firme
CAX-02	Brazil	−1.74	−51.46	15	2314	26.88	Acrisol	Terra firme
CAX-06	Brazil	−1.72	−51.46	15	2314	26.88	Ferrasol	Terra firme
CUZ-03	Peru	−12.50	−68.96	190	2417	25.54	Cambisol	Terra firme
ELD-12	Venezuela	6.10	−61.40	201	1977	26.66	Cambisol	Terra firme
ELD-34	Venezuela	6.08	−61.41	369	1977	25.82	Leptosol	Terra firme
JARU	Brazil	−10.08	−61.93	150	1600	26	Acrisol	Terra firme
JAS-02	Ecuador	−1.07	−77.62	434	4013	23.38	Alisol	Terra firme
JAS-03	Ecuador	−1.08	−77.61	410	4013	23.38	Alisol	Terra firme
JAS-04	Ecuador	−1.07	−77.61	430	4013	23.38	Alisol	Terra firme
JAS-05	Ecuador	−1.06	−77.62	394	4013	23.38	Fluvisol	Terra firme
JRI-01	Brazil	−0.89	−52.19	127	2346	26.59	Ferrasol	Terra firme
LOR-12	Colombia	−3.06	−69.99	94	3216	25.8	Plinthosol	Terra firme
MAN-01	Brazil	−2.61	−60.21	100	2950	26.7	Ferrasol	Terra firme
MAN-05	Brazil	−2.61	−60.20	100	2950	26.7	Ferrasol	Terra firme
RIO-12	Venezuela	8.11	−61.69	270	1239	25.62	Lixisol	Terra firme
SCR-05	Venezuela	1.93	−67.04	111	3093	25.98	Acrisol	Tall caatinga
SCR-04	Venezuela	1.93	−67.04	110	3093	25.98	Podzol	Terra firme
SUC-01	Peru	−3.25	−72.91	123	2671	26.29	Plinthosol	Terra firme
SUC-02	Peru	−3.25	−72.90	122	2671	26.29	Acrisol	Terra firme
TAM-01	Peru	−12.84	−69.29	205	2417	25.2	Alisol	Terra firme
TAM-02	Peru	−12.83	−69.29	210	2417	25.2	Alisol	Terra firme
TAM-05	Peru	−12.83	−69.27	220	2417	25.2	Cambisol	Terra firme
TAM-06	Peru	−12.84	−69.30	200	2417	25.2	Alisol	Terra firme
TAM-07	Peru	−12.83	−69.26	225	2417	25.2	Cambisol	Terra firme
TAP-123	Brazil	−3.31	−54.94	187	1968	26.13	Ferrasol	Terra firme
TIP-03	Ecuador	−0.64	−76.14	237	3252	25.79	Gleysol	Terra firme
YAN-01	Peru	−3.44	−72.85	104	2671	26.31	Alisol	Terra firme
YAN-02	Peru	−3.43	−72.84	104	2671	26.31	Cambisol	Terra firme