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Plant ontogenetic changes in vein and stomatal traits and their relationship with economic traits in leaves of three Mediterranean oaks |
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| Authors: | Sonia Mediavilla Ignacio Martín Alfonso Escudero |
| Affiliation: | 1. Área de Ecología, Facultad de Biología, Universidad de Salamanca, Campus Miguel de Unamuno, Salamanca 37007, Spain, ;2. Dpto. deBotánica y Fisiología Vegetal, Facultad de Biología, Universidad de Salamanca, Campus Miguel de Unamuno, Salamanca 37007, Spain;Corresponding author. E-mail: ecomedv@usal.es |
| Abstract: | AimsWe compared vein and stomatal traits of seedlings and adults of three MediterraneanQuercusspecies. Previous work suggests that gas-exchange rates tend to be higher at the seedling stage than in adults. Our objective was to determine whether vein and stomatal traits vary throughout whole-plant ontogeny in parallel with the changes in gas-exchange rates. We addressed the following alternative hypotheses: hypothesis 1—seedlings show higher vein and stomatal densities than adults; and hypothesis 2—seedlings have lower investments in vascular tissues to reduce construction costs. |
| Keywords: | leaf venation leaf life span plant ontogenetic changes Quercus species stomatal traits |
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