Leaf Gas Exchange and Nutrient Use Efficiency Help Explain the Distribution of Two Neotropical Mangroves under Contrasting Flooding and Salinity

Figure 2

Leaf intercellular CO₂ concentration (𝐶_𝑖) and photosynthetic water use efficiency (PWUE) for Laguncularia racemosa (L) and Rhizophora mangle (R) in response to 10 g/L (10S) or 40 g/L (40S) salinity. Data are displayed according to the highest order significant interaction (Table 1). Values are means ±  1SE. Effects annotated with the same letter indicate lack of significance (𝑃>0.05) after Bonferroni adjustment (𝛼=0.05/12) for a particular graph.

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