Table 1: Functional traits used in the study, their role in tree functional strategy [20], the range of values represented by the 53 species in this study, the range of values for tree species of French Guiana [20], and associations between functional traits and expected growth response to water availability reported in the literature.

RolesUnitsSample rangeaFG rangebWETcDRYdReferences

Life-history
 DBHmaxArchitecture and structuremm190–98010–1254+*−*Granier et al. [24]; Nepstad et al. [25, 70]; Monserud [26]; Wyckoff and Clark [27]
 HeightmaxArchitecture and structurem18–508–56+Poorter et al. [23]; Herault et al. [13]
 Seed massReproductive investmentg<0.01–>20<0.01–>20+Moles et al. [19]; Poorter and Bongers [28]

Stem economic spectrum
 Wood densityTransport structure defenseg·cm−30.38–0.840.28–0.88+Santiago et al. [32]; Chave et al. [33]; Markesteijn et al. [34]
 Bark thicknessDefensemm(−4.7)–13(−6.2)–13.4Stahl et al. [31]; Baker et al. [30]

Leaf economic spectrum
 SLAResource capture, defensecm2·g−15.41–164.02–24.78+Poorter et al. [23, 35]; Sterck and Bongers [36]; Wright et al. [16]; Fyllas et al. [37]; Cornelissen et al. [38]; Poorter and Bongers [28]
 KResource captureg·g−1 +Roelfsema and Hedrich [40]; Marschner [41]; Santiago and Wright [42]
 NResource captureg·g−1 +Baraloto et al. [20]; Poorter and Bongers [28]
 PResource captureg·g−1 +Baraloto et al. [20]; Poorter and Bongers [28]
 C/NResource capture, defenseg·g−113–3411–47+Baraloto et al. [20]; Poorter and Bongers [28]
 LTDResource capture, defenseg·cm−3 +Wright et al. [16]; Donovan et al. [39]
  ChlorophyllResource capture g·mm−248–10021–150+Wright et al. [16]; Baraloto et al. [20]; Cornelissen et al. [38]
 ToughnessDefenseN0.85–3.40.2–11.4+Wright et al. [16]; Donovan et al. [39]
δ13CResource capture (−1.7)–2.5(−2.9)–4.8+Farquhar et al. [43]; Prentice et al. [44]; Lamont et al. [46]; Fyllas et al. [37]; Baraloto et al. [20]

Range of traits values of the Paracou sample, brange of traits values of French Guiana (FG) extract from the BRIDGE database [20], cexpected growth response to wet conditions, dexpected growth response to drought conditions, *(+) trees with high values of a given functional trait are expected to grow faster, and (−) trees with high values of a given functional trait are expected to grow slower.