Trait correlation network analysis identifies biomass allocation traits and stem specific length as hub traits in herbaceous perennial plants

Journal of Ecology, Journal Year: 2018, Volume and Issue: 107(2), P. 829 - 842

Published: Aug. 30, 2018

Abstract Correlations among plant traits often reflect important trade‐offs or allometric relationships in biological functions like carbon gain, support, water uptake, and reproduction that are associated with different organs. Whether trait correlations can be aggregated to “spectra” “leading dimensions,” whether these dimensions consistent across organs, spatial scale, growth forms still open questions. To illustrate the current state of knowledge, we constructed a network published “leaf economics spectrum,” “biomass allocation dimension,” “seed nitrogen concentrations. This literature‐based was compared based on dataset 23 from 2,530 individuals 126 species 381 plots Northwest Europe. The observed comprised more significant than network. Network centrality measures showed size such as mass leaf, stem, below‐ground, reproductive tissues height were most central network, confirming importance herbaceous plants. Stem stem‐specific length “hub” correlated traits. Environmental selection hub may affect whole phenotype. In contrast SLA leaf N minor importance. Based cluster analysis subsequent PCAs resulting clusters, found “size” module, “seed” two modules representing C concentrations “partitioning” module organ fractions. A spectrum did not emerge. Synthesis . Although support for several dimensions, deviated significantly suggesting previous studies have overlooked coordination at whole‐plant level. Furthermore, suggests stem stronger regulatory role plants

Language: Английский

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Evolution of clonal growth forms in angiosperms

New Phytologist, Journal Year: 2019, Volume and Issue: 225(2), P. 999 - 1010

Published: Sept. 10, 2019

Summary Clonal growth of plants is attained by a number morphologically different organs (e.g. stolons, rhizomes, and roots), which are not functionally equivalent. Consequently, these clonal organ ( CGO ) types can determine functional traits that associated with clonality, although little known about their evolutionary flexibility or the constraining role they play on traits. We investigated rates change individual s acquired lost using set 2652 species Central European flora. Furthermore, we asked how constrain relevant traits, such as lateral spread, offspring, persistence connections. show easily switch in evolution among between nonclonal habits. However, all transitions equally probable. Namely, stem‐based root‐based constitute evolutionarily separate forms growth. strongly constrained types. Specifically, fast spread stolons hypogeogenous persistent connections rhizome ease appear disappear implies overcome constraints adjusting morphologies.

Language: Английский

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Leaf economics and plant hydraulics drive leaf : wood area ratios

New Phytologist, Journal Year: 2019, Volume and Issue: 224(4), P. 1544 - 1556

Published: June 19, 2019

Biomass and area ratios between leaves, stems roots regulate many physiological ecological processes. The Huber value Hv (sapwood area/leaf ratio) is central to plant water balance drought responses. However, its coordination with key functional traits poorly understood, prevents developing trait-based prediction models. Based on theoretical arguments, we hypothesise that global patterns in of terminal woody branches can be predicted from variables related trait spectra, hydraulics size leaf economics. Using a compilation 1135 species-averaged , show varies over three orders magnitude. Higher are seen short small-leaved low-specific (SLA) shrubs low Ks arid relative tall large-leaved high-SLA trees high moist environments. All depend climate but climatic correlations stronger for explanatory than . Negative isometry found suggesting compensation maintain hydraulic supply leaves across species. This work identifies the major drivers branch sapwood/leaf ratios. Our approach based widely available facilitates development accurate models above-ground biomass allocation helps predict vegetation responses drought.

Language: Английский

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Precision water recharge facilitates spikelet development and seed growth in Carex schmidtii: Implications for near-natural restoration of degraded semi-arid wetlands

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 375, P. 124338 - 124338

Published: Jan. 29, 2025

Language: Английский

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Climate as a driver of adaptive variations in ecological strategies in Arabidopsis thaliana

Annals of Botany, Journal Year: 2018, Volume and Issue: unknown

Published: Aug. 17, 2018

The CSR classification categorizes plants as stress tolerators (S), ruderals (R) and competitors (C). Initially proposed a general framework to describe ecological strategies across species, this scheme has recently been used investigate the variation of within species. For instance, ample along S-R axis was found in Arabidopsis thaliana, with stress-tolerator accessions predominating hot dry regions, which interpreted sign functional adaptation climate species.In study range A. thaliana evaluated 426 originating from North Africa Scandinavia. A position strategy space allocated for every accession based on three traits: leaf area, matter content (LDMC) specific area (SLA). Results were related at origin compared previous performed same Furthermore, role natural selection phenotypic differentiation between lineages investigated QST-FST comparisons, using large amount genetic information available species.Substantial thaliana. By contrast findings, predominated cold climates, notably Scandinavia, where late flowering associated traits resource conservation, such high LDMC low SLA. Because trait plasticity, variations relation growth conditions also observed genotypes.There is latitudinal gradient result within-species climate. Our underlines importance methodology measurement, age versus stage infer strength direction trait-environment relationships. This highlights potential limitations explaining environment.

Language: Английский

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Reproductive phenology as a dimension of the phenotypic space in 139 plant species from the Mediterranean

New Phytologist, Journal Year: 2019, Volume and Issue: 225(2), P. 740 - 753

Published: Sept. 5, 2019

Summary Phenology, the study of seasonal timing events in nature, plays a key role matching between organisms and their environment. Yet, it has been poorly integrated trait‐based descriptions plant phenotype. Here, we focus on three phases reproductive phenology – time flowering, seed dispersal duration maturation to test how these traits relate other recognized dimensions functioning. Traits describing phenology, together with height, mass, area leaf, involved leaf economics, were compiled for 139 species growing under Mediterranean climate conditions. Across all species, flowering was positively related while economics. Relationships differed among growth forms, however: height both annuals herbaceous perennials, whereas mass only annuals; no correlations found woody species. Phenology relates functioning complex manner, suggesting that should be considered as an independent dimension context strategies.

Language: Английский

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Divergent intra- and interspecific root order variability identifies a two-dimensional root economics spectrum

Plant and Soil, Journal Year: 2024, Volume and Issue: 499(1-2), P. 473 - 490

Published: Jan. 9, 2024

Language: Английский

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Fast mvSLOUCH: Multivariate Ornstein–Uhlenbeck‐based models of trait evolution on large phylogenies

Methods in Ecology and Evolution, Journal Year: 2024, Volume and Issue: 15(9), P. 1507 - 1515

Published: July 8, 2024

Abstract The PCMBase R package is a powerful computational tool that enables efficient calculations of likelihoods for wide range phylogenetic Gaussian models. Taking advantage it, we redesigned the mvSLOUCH . Here, demonstrate how new version can be used to thoroughly examine evolution and adaptation traits in large dataset 1252 vascular plants through use multivariate Ornstein–Uhlenbeck processes. results our analysis ability modelling framework distinguish between various alternative hypotheses regarding functional angiosperms.

Language: Английский

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Interspecific trait integration increases with environmental harshness: A case study along a metal toxicity gradient

Functional Ecology, Journal Year: 2020, Volume and Issue: 34(7), P. 1428 - 1437

Published: April 8, 2020

Abstract Functional traits are commonly used to calculate a wide array of functional diversity indices infer different mechanisms community assembly and species coexistence. Recently, the degree interspecific covariation between multiple has been suggested as mechanism influencing both distributions abundances in communities. However, empirical assessments this theory along environmental gradients still scarce due lack an appropriate method sufficiently strong gradients. Here we compare trait integration (ITI) across plant communities marked gradient copper toxicity soil, using new multivariate bivariate indices. This was achieved range eigenvalues principal component analysis on local (multivariate ITI index) correlations (bivariate index). We show that metal tolerance strategy (i.e. leaf content) is relatively independent from economics, while negatively correlated size. In addition, our results indicate weak support for expected general patterns syndromes, such ‘leaf economics spectrum’ or ‘leaf–height–seed’, at whole‐community scale. arises increase soil gradient. The strongest caused by association certain metal‐rich soils. explains richness better than other Our study highlights power ITI, well its complementarity indices, investigate variation strategies their drivers with supports highly constraining environments select increasingly coordinated sets traits, turn possibly driving decrease richness. Further studies should assess generality underlying physiological ecological patterns.

Language: Английский

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Growth form effects on leaf functional traits and the adaptive strategies of Quercus coccifera L. in Northern Morocco

Deleted Journal, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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