Intraspecific trait variation in plants: a renewed focus on its role in ecological processes

Annals of Botany, Journal Year: 2021, Volume and Issue: 127(4), P. 397 - 410

Published: Jan. 27, 2021

Investigating the causes and consequences of intraspecific trait variation (ITV) in plants is not novel, as it has long been recognized that such shapes biotic abiotic interactions. While evolutionary population biology have extensively investigated ITV, only last 10 years interest ITV surged within community comparative ecology.

Language: Английский

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Quantitative evidence synthesis: a practical guide on meta-analysis, meta-regression, and publication bias tests for environmental sciences

Environmental Evidence, Journal Year: 2023, Volume and Issue: 12(1)

Published: April 24, 2023

Meta-analysis is a quantitative way of synthesizing results from multiple studies to obtain reliable evidence an intervention or phenomenon. Indeed, increasing number meta-analyses are conducted in environmental sciences, and resulting meta-analytic often used policies decision-making. We survey recent sciences found poor standards current practice reporting. For example, only ~ 40% the 73 reviewed reported heterogeneity (variation among effect sizes beyond sampling error), publication bias was assessed fewer than half. Furthermore, although almost all had originating same studies, non-independence considered half meta-analyses. To improve implementation meta-analysis we here outline practical guidance for conducting sciences. describe key concepts size detail procedures fitting multilevel meta-regression models performing associated tests. demonstrate clear need scientists embrace models, which explicitly model dependence sizes, rather commonly random-effects models. Further, discuss how reporting visual presentations can be much improved by following guidelines such as PRISMA-EcoEvo (Preferred Reporting Items Systematic Reviews Meta-Analyses Ecology Evolutionary Biology). This paper, along with accompanying online tutorial, serves guide on complete set (i.e., meta-analysis, quantification, meta-regression, tests sensitivity analysis) also gateway more advanced, yet appropriate, methods.

Language: Английский

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Patterns in intraspecific variation in root traits are species‐specific along an elevation gradient

Functional Ecology, Journal Year: 2020, Volume and Issue: 35(2), P. 342 - 356

Published: Nov. 30, 2020

Abstract Intraspecific trait variation is an important driver of plant performance in different environments. Although roots acquire essential resources that vary with the environment, most studies have focused on intraspecific leaf traits, and research often restricted to a few species. It remains largely unclear how what extent root traits environment whether general patterns exist across We compared specific length (SRL), diameter, tissue density (RTD) branching 11 species along 1,000 m elevation gradient French Alps. tested (a) versus interspecific gradient, (b) were consistent among (c) environmental variables better explained than elevation. Specifically, we hypothesised within species, values would adjust enhance resource acquisition (either through increase SRL or and/or density) conservation (increased RTD) at higher elevations. Species identity overall traits. Elevation only minor proportion variation, which was larger between Also, relationships rarely agreed our hypotheses, varied strongly differently related variation. Generally, climate, soil vegetation properties elevation, but these highly species‐dependent. Along complex gradients where multiple simultaneously change, ways, leading species‐specific The lack support for hypotheses may be caused by interactions properties, small‐scale heterogeneity, phylogeny changing plant–plant interactions. Our findings suggest that, understanding effects change performance, need integrate dimensions responses measure broader set variables. A free Plain Language Summary can found Supporting Information this article.

Language: Английский

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Intraspecific trait variation in alpine plants relates to their elevational distribution

Journal of Ecology, Journal Year: 2022, Volume and Issue: 110(4), P. 860 - 875

Published: Feb. 24, 2022

Abstract Climate warming is shifting the distributions of mountain plant species to higher elevations. Cold‐adapted are under increasing pressure from novel competitors that encroaching lower Plant capacity adjust these pressures may be measurable as variation in trait values within a species. In particular, strength and patterns intraspecific along abiotic biotic gradients can inform us whether how their anatomy morphology persist changing environment. Here, we tested specialized high elevations or with narrow elevational ranges show more conservative (i.e. less variable) responses across distribution, response neighbours, than wider ranges. We did so by studying 66 40 four countries both hemispheres. As an indication potential neighbour interactions could drive variation, also analysed species’ height ratio, its relative nearest neighbour. Variation alpine over elevation differed depending on median breadth range, larger range sizes showing greater i.e. steeper slope values, distributions. These effects were evidenced significant between preference for several traits: vegetative height, generative specific leaf area patch area. The ratio focal neighbours decreased part distribution because became relatively taller at contrast, optima maintained similar throughout range. Synthesis . provide evidence those which indicate ability respond environmental changes. Also, stronger competitive upslope species, posing one further threat

Language: Английский

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Plant performance and survival across transplant experiments depend upon temperature and precipitation change along elevation

Journal of Ecology, Journal Year: 2020, Volume and Issue: 108(5), P. 2107 - 2120

Published: March 13, 2020

Abstract Understanding how plant individuals perform in non‐local sites is key the context of contemporary range shifts along elevation. Transplant experiments conducted mountain ecosystems are rising as tools to measure intraspecific response transplanted across contrasting elevations. However, a synthesis quantifying patterns performance changes abiotic factors different species and ranges still lacking. We meta‐analysis quantitatively summarize species' variation temperature precipitation within their elevation multiple transplant experiment studies. compiled dataset obtained from 38 studies 49 vascular total addressing terms survival, germination, biomass, height, number vegetative organs, reproductive units, SLA leaf size. both compared pairs those growing at site origin (‘away vs. home’) local found (‘foreign local’). Overall, downward showed larger biomass height but failed adjust these traits survival that individuals. Individuals upward adjusted by decreasing growth units lower survival. Importantly, size, organs increased linearly with difference mean annual between ‘away home’ comparison. Conversely, ‘foreign local’ Synthesis . detected common trends trait elevational gradients. Because plasticity adaptation play crucial role shift, establishment persistence under environmental conditions, our contributes better understand rapid constrained climatic conditions range.

Language: Английский

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Ecotoxicological effects of plastics on plants, soil fauna and microorganisms: A meta-analysis

Environmental Pollution, Journal Year: 2022, Volume and Issue: 310, P. 119892 - 119892

Published: Aug. 3, 2022

Language: Английский

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Leaf functional traits vary among growth forms and vegetation zones in the Himalaya

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 906, P. 167274 - 167274

Published: Sept. 21, 2023

Language: Английский

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Elevation-driven modifications in tissue architecture and physiobiochemical traits of Panicum antidotale Retz. in the Pothohar Plateau, Pakistan

Plant Stress, Journal Year: 2024, Volume and Issue: 11, P. 100430 - 100430

Published: March 1, 2024

Mountainous ecosystems are experiencing rapid shifts in distribution patterns and community structure due to the impacts of climate change vegetation dynamics. This study offers a comprehensive insight into adaptive mechanisms Panicum antidotale varying elevations within Pothohar Plateau, shedding light on its survival strategies climate-affected regions. The findings reveal that populations at lower exhibit maximum height, leaf area, shoot length, fresh weight, whereas those higher display significant decrease these parameters. Moreover, decline species density, frequency cover is evident high elevation. High-elevation demonstrate decreased photosynthetic traits, including chlorophyll, carotenoid, Na Ca content. Furthermore, there notable variations antioxidant enzyme activity across elevation gradients. Populations activities superoxide dismutase peroxidase. Across gradient, were reductions root stem radius, sclerenchyma thickness, bulliform cell size, metaxylem vessels, phloem area. moderate displayed thicker lamina epidermis, larger cortical cells, wider xylem increased area; however, traits declined elevations. showed extensive sclerenchyma, greater stomatal density. Photosynthetic enzymatic major contributors while significantly changed Overall, this research contributes broader knowledge plant adaptation mountainous stresses importance considering as critical factor ecological studies.

Language: Английский

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Exploring trait–performance relationships of tree seedlings along experimentally manipulated light and water gradients

Ecology, Journal Year: 2022, Volume and Issue: 103(7)

Published: March 31, 2022

A foundational assumption of trait-based ecology is that individual performances should be predicted by its functional traits. However, the trait-performance relationships reported in literature were typically weak, probably due to ignorance interactions between traits and environments, intraspecific trait variability, hard (directly linked physiological processes interest). We conducted an experiment planting 900 seedlings six tree species separately (one seedling per pot) along experimentally manipulated light water gradients, monitored their survival growth, measured morphological, photosynthetic, hydraulic Most depended on either marginally changing (weak × environment interaction) or even reversing (strong gradients our experiment. Such more likely detected growth models using individual-level than mean traits, but was not better modeled with Additionally, none (photosynthetic traits) predictors soft (morphological modeling gradients. Our study highlights necessities considering when predicting response plants environments. The benefits predict plant performance might reduced canceled if measurement errors are well controlled.

Language: Английский

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Editorial: Leaf functional traits: Ecological and evolutionary implications

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: March 21, 2023

EDITORIAL article Front. Plant Sci., 21 March 2023Sec. Functional Ecology Volume 14 - 2023 | https://doi.org/10.3389/fpls.2023.1169558

Language: Английский

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