From seedlings to adults: Linking survival and leaf functional traits over ontogeny - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement
Article Dans Une Revue Ecology Année : 2024

From seedlings to adults: Linking survival and leaf functional traits over ontogeny

Résumé

As long-lived tropical trees grow into the multi-layered canopy and face different environmental conditions, the relationships between leaf traits and whole-plant survival can vary over ontogeny. We tested the strength and direction of the relationships between leaf traits and long-term survival data across life stages for woody species from a subtropical forest in Puerto Rico. Trait-survival relationships were largely consistent across ontogeny with conservative traits leading to higher survival rates. The stage-specific relationship R 2 increased by up to one order of magnitude compared to studies not considering ontogenetic trait variations. Stage-specific traits were significant predictors of their corresponding stage-specific survival: Seedlings traits were better predictors of seedling survival than adult traits, and adult traits were better predictors of maximum adult survival than seedling traits. Our results suggest that stage-specific leaf traits reflect different strategies over ontogeny and can substantially improve predictability of survival models in tropical forests.
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hal-04814108 , version 1 (02-12-2024)

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María Natalia Umaña, Jessica Needham, Claire Fortunel. From seedlings to adults: Linking survival and leaf functional traits over ontogeny. Ecology, In press, ⟨10.1002/ecy.4469⟩. ⟨hal-04814108⟩
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