Are Commonly Measured Functional Traits Involved in Tropical Tree Responses to Climate?

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.

	Roles	Units	Sample range^a	FG range^b	WET^c	DRY^d	References
Life-history
DBHmax	Architecture and structure	mm	190–980	10–1254	+*	−*	Granier et al. [24]; Nepstad et al. [25, 70]; Monserud [26]; Wyckoff and Clark [27]
Heightmax	Architecture and structure	m	18–50	8–56	+	−	Poorter et al. [23]; Herault et al. [13]
Seed mass	Reproductive investment	g	<0.01–>20	<0.01–>20	−	+	Moles et al. [19]; Poorter and Bongers [28]
Stem economic spectrum
Wood density	Transport structure defense	g·cm^−3	0.38–0.84	0.28–0.88	−	+	Santiago et al. [32]; Chave et al. [33]; Markesteijn et al. [34]
Bark thickness	Defense	mm	(−4.7)–13	(−6.2)–13.4			Stahl et al. [31]; Baker et al. [30]
Leaf economic spectrum
SLA	Resource capture, defense	cm^2·g^−1	5.41–16	4.02–24.78	+	−	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]
K	Resource capture	g·g^−1	2×10^−3--2×10^−2	1.2×10^−3--2.2×10^−2	+	−	Roelfsema and Hedrich [40]; Marschner [41]; Santiago and Wright [42]
N	Resource capture	g·g^−1	1×10^−2--4×10^−2	1×10^−2--4.5×10^−2	+	−	Baraloto et al. [20]; Poorter and Bongers [28]
P	Resource capture	g·g^−1	3×10^−4--2×10^−3	2.9×10^−4--2.15×10^−3	+	−	Baraloto et al. [20]; Poorter and Bongers [28]
C/N	Resource capture, defense	g·g^−1	13–34	11–47	−	+	Baraloto et al. [20]; Poorter and Bongers [28]
LTD	Resource capture, defense	g·cm^−3	2.5×10^−5--5.6×10^−5	2.1×10^−5--1.45×10^−4	−	+	Wright et al. [16]; Donovan et al. [39]
Chlorophyll	Resource capture	𝜇g·mm^−2	48–100	21–150	−	+	Wright et al. [16]; Baraloto et al. [20]; Cornelissen et al. [38]
Toughness	Defense	N	0.85–3.4	0.2–11.4	−	+	Wright et al. [16]; Donovan et al. [39]
^δ13C	Resource 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]

aRange 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.