Contrasting effects of plant inter‐ and intraspecific variation on community‐level trait measures along an environmental gradient
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TLDR
The strength and direction of inter- and intraspecific plant community trait responses along a 900 m elevation gradient spanning alpine and subalpine plant communities in southern New Zealand are quantified to reveal highly complex plastic responses of plants to environmental changes, and highlight the need for greater consideration of the role that intrapecific variation plays in community-level processes.Abstract:
Summary 1. Despite widespread focus on interspecific variation in trait-based ecology, there is growing evidence that intraspecific trait variability can play a fundamental role in plant community responses to environmental change and community assembly. 2. Here, we quantify the strength and direction of inter- and intraspecific plant community trait responses along a 900 m elevation gradient spanning alpine and subalpine plant communities in southern New Zealand. We measured five commonly used leaf traits (i.e. dry matter content, N and P concentrations, leaf area and specific leaf area) on all 31 dominant and subordinate species recorded along the gradient, and examined their species-specific and community-level responses to elevation using both abundance-weighted and nonweighted averages of trait values. 3. By decomposing the variance of community-level measures of these traits across the gradient, we showed that the contribution of interspecific variation to the response of plant assemblages to elevation was stronger than that of intraspecific variation, for all traits except specific leaf area. Further, the relative contributions of interspecific effects were greater when abundance-weighted rather than nonweighted measures were used. We also observed contrasting intraspecific trait responses to the gradient among species (particularly for leaf N and P concentrations), and found both positive and negative covariation between inter- and intraspecific effects on community-level trait values. 4. The weak community-average trait responses to elevation, as found for specific leaf area (SLA) and leaf N and P concentrations, resulted from strong but opposing responses among vs. within species, which are not typically accounted for in species-based measures of plant community responses. For instance, increasing elevation (and associated factors such as a decrease in soil nutrient availability) favoured the dominance of species with relatively high leaf nutrient concentrations while simultaneously triggering an intraspecific decrease in the leaf nutrient concentrations of these species. 5. The context dependency of positive and negative covariation between inter- and intraspecific trait variability, and the species-specific nature of intraspecific shifts in functional trait values, reveal highly complex plastic responses of plants to environmental changes, and highlights the need for greater consideration of the role that intraspecific variation plays in community-level processes.read more
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References
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Journal ArticleDOI
The Mineral Nutrition of Wild Plants
TL;DR: The nature of crop responses to nutrient stress is reviewed and compares these responses to those of species that have evolved under more natural conditions, particularly in low-nutrient envi ronments.
Journal ArticleDOI
Rebuilding community ecology from functional traits.
TL;DR: It is asserted that community ecology should return to an emphasis on four themes that are tied together by a two-step process: how the fundamental niche is governed by functional traits within the context of abiotic environmental gradients; and how the interaction between traits and fundamental niches maps onto the realized niche in the context a biotic interaction milieu.
Journal ArticleDOI
A handbook of protocols for standardised and easy measurement of plant functional traits worldwide
Johannes H. C. Cornelissen,Sandra Lavorel,Eric Garnier,Sandra Díaz,Nina Buchmann,Diego E. Gurvich,Peter B. Reich,H. ter Steege,H. D. Morgan,M. van der Heijden,Juli G. Pausas,Hendrik Poorter +11 more
TL;DR: This paper provides an international methodological protocol aimed at standardising this research effort, based on consensus among a broad group of scientists in this field, and features a practical handbook with step-by-step recipes, for 28 functional traits recognised as critical for tackling large-scale ecological questions.
Journal ArticleDOI
Let the concept of trait be functional
Cyrille Violle,Marie-Laure Navas,Denis Vile,Elena Kazakou,Claire Fortunel,Irène Hummel,Eric Garnier +6 more
TL;DR: An unambiguous definition of plant trait is given, with a particular emphasis on functional trait, and it is argued that this can be achieved by developing "integration functions" which can be grouped into functional response (community level) and effect (ecosystem level) algorithms.
Journal ArticleDOI
Predicting changes in community composition and ecosystem functioning from plant traits: revisiting the Holy Grail
Sandra Lavorel,Eric Garnier +1 more
TL;DR: A framework using concepts and results from community ecology, ecosystem ecology and evolutionary biology to provide a linkage between traits associated with the response of plants to environmental factors and traits that determine effects of plants on ecosystem functions is presented.
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