ArticleAmerican journal of botany2026
Environmentally induced dynamics between intraindividual variation and trait means across vegetative, phenological, and floral traits.
Article in American journal of botany, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
premiseIntraindividual variation in reiterated structures (e.g., leaves) represents an important dimension of phenotypic variation that contributes to functional diversity and the dynamics of ecological communities. It can be expressed differently across plant traits, but how environmental drivers affect intraindividual variation in different trait types remains unknown.
methodsHere we subjected Galium odoratum to drought and shading treatments with a full-factorial experimental design to investigate environmental induction of intraindividual variation in vegetative, phenological, and floral traits and the dynamic relationships between trait mean responses and their variation.
resultsIntraindividual variation differed in magnitude between trait types, with vegetative traits having the highest variation and floral traits the lowest. Intraindividual variation differed among the environmental treatments with floral traits having the highest variation under control conditions, whereas vegetative traits had the highest amount of variation under the combined drought and early-shading treatment. Relationships between intraindividual variation and trait means varied across most traits and treatments, indicating environmentally induced dynamics in trait expressions.
conclusionsIntraindividual variation was environmentally inducible and dynamic depending on the treatment, suggesting that plastic responses in intraindividual variation may be an important component for mechanistic adjustments of plants to environmental stresses.
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