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33 results for “trait coordination”
Dataset and R code: Above and belowground functional trait coordination in the Neotropical understory genus Costus
<p>Dataset and R code accompanying the paper "Above and belowground functional trait coordination in the Neotropical understory genus <em>Costus</em>" published by AoB Plants. </p>
Data_Schönauer et al. (2023)_Root and branch hydraulic functioning and trait coordination across organs in drought-deciduous and evergreen tree species of a subtropical highland forest
<p>Data used in</p> <p>Schönauer, M., Hietz, P., Schuldt, B., and Rewald, B. (2023). Root and branch hydraulic functioning and trait coordination across organs in drought-deciduous and evergreen tree species of a subtropical highland forest. Frontiers in plant science 14, 1127292. doi: 10.3389/fpls.2023.1127292</p>
Coordination of hydraulic and morphological traits across dominant grasses in eastern Australia
<p>1. Leaf hydraulic traits characterize plant drought tolerance and responses to climate change. Yet, plant hydraulics are biased towards northern hemisphere woody species. We collected rhizomes of several perennial grass species along a precipitation gradient in eastern Australia and grew them in an experimental garden to investigate potential tradeoffs between drought tolerance and plant morphology.</p> <p>2. We measured the following leaf hydraulic traits: the leaf water potential (Ψleaf) at 50% and 88% loss of leaf hydraulic conductance (P50Kleaf and P88Kleaf), the Ψleaf at 50% loss of stomatal conductance (P50gs), leaf turgor loss point (TLP), leaf dry matter content (LDMC), leaf modulus of elasticity (ε), and the slope of the relationship between predawn and midday Ψleaf. We also measured basal area, tiller density, seed head density, root collar diameter, plant height, and aboveground biomass of each individual.</p> <p>3. As expected, grass species varied widely in leaf-level drought tolerance, with loss of 88% hydraulic conductance occurring at a Ψleaf ranging from -1.52 to -4.01 MPa. However, all but one species lost leaf turgor, and most reached P50gs before this critical threshold. Taller more productive grass species tended to have drought vulnerable leaves characterized by low LDMC and less negative P88Kleaf. Species with greater tiller production experienced stomatal closure and lost turgor at more negative Ψleaf. Although our sample size was limited, we found no relationships between these species' traits and their climate of origin.</p> <p>4. Overall, we identified important hydraulic and morphological tradeoffs in Australian grasses that were surprisingly similar to those observed for woody plants: (1) xylem of taller species was less drought tolerant and (2) turgor loss occurs and stomatal closure begins before significant loss of Kleaf. These data build upon a small yet growing field of grass hydraulics and may be informative of species responses to further drought intensification in Australia.</p>
Intraspecific functional trait variation and coordination in Schizachyrium scoparium
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Coordination of hydraulic and morphological traits across dominant grasses in eastern Australia
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Data from: Aridity drives coordinated trait shifts but not decreased trait variance across the geographic range of eight Australian trees
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Trait coordination and environmental filters shape functional trait distributions of forest understory herbs
We test the importance of environmental filtering and trait covariance for structuring the functional traits of understory herbaceous communities.
Data for: "Above and below ground trait coordination in tree seedlings depend on the most limiting resource: A test comparing a wet and a dry tropical forest in Mexico" by L. Sanaphre-Villanueva, F. Pineda-Garcia, W. Dattilo, L. F. Pinzon-Perez, A. Ricaño Rocha, H. Paz.
<p>These data represent those published in “Above and below ground trait coordination in tree seedlings depend on the most limiting resource: A test comparing a wet and a dry tropical forest in Mexico” by L. Sanaphre-Villanueva, F. Pineda-Garcia, W. Dattilo, L. F. Pinzon-Perez, A. Ricaño Rocha, H. Paz. PeerJ. 2022.</p>
Trait coordination in boreal mosses reveals a bryophyte economics spectrum
<p>1. The study of plant trait spectra and their association with trade-offs in resource use strategy has greatly advanced our understanding of vascular plant function, yet trait spectra remain poorly studied in bryophytes, particularly outside of the Sphagnum genus. Here, we measured 25 traits related to carbon, nutrient, and water conservation in 60 moss canopies (each dominated by one of 15 moss species) across diverse boreal forest habitats, and used bi-variate correlations and multi-variate analyses to assess trait coordination and trait spectra.</p> <p>2. We found substantial trait coordination along a main principal components axis driven by trade-offs in carbon, nutrient, and water conservation strategies. Along this trait spectrum, traits varied from resource-acquisitive at one end (e.g., high maximum photosynthetic capacity, high tissue nitrogen content, low water holding capacity) to resource-conservative at the other end, in line with resource economics theory.</p> <p>3. Traits related to carbon turnover (photosynthesis and respiration rates, litter decomposability) were positively related to nitrogen content and to desiccation rates, in line with global trait spectra in vascular plants. However, architectural traits of the moss shoots and of the moss canopy were generally unrelated to the main axis of trait variation and formed a secondary axis of trait variation, contrary to what is observed for vascular plants.</p> <p>4. Resource-conservative trait spectra dominated in moss canopies from open and wet habitats (i.e., mires), indicating that high irradiance and possibly high moisture fluctuation induce a resource-conservative trait strategy in mosses.</p> <p>5. Synthesis. Our work suggests that trait relationships that are well established for vascular plants can be extended for bryophytes as well. Bryophyte trait spectra can be powerful tools to improve our understanding of ecosystem processes in moss-dominated ecosystems, such as boreal or arctic environments, where bryophyte communities exert strong control on nutrient and carbon cycling.</p>
Phylogenetic conservatism and coordination in traits of Chinese woody endemic flora
<p><span>The dataset contains 5 files, including:</span></p> <p><span><span>(1)<span> </span></span></span><span>“HLS. new” is a phylogenetic tree constructed with 1,387 species, we used Taxa01, Taxa02 in the phylogenetic tree construction process (refer to Taxa match species file). <strong>Please note</strong> that I marked <strong>outgroups</strong> (9 species) in yellow color, you may use “drop tips” function in R to delete them if it’s extra info for you;</span></p> <p><span><span>(2)<span> </span></span></span><span>“Taxa match species” , Taxa name are corresponding to “HLS. new”;</span></p> <p><span><span>(3)<span> </span></span></span><span>“OGU” is a species occurrence file, each gridcell could be regard as “community”, which we can use to analysis species assembling; </span></p> <p><span>Gridcell in this file corresponding to the Operational Geographic Units (OGUs). Species occurrence matrix were prepared according to Silva et al.'s (Cardoso da Silva, Cardoso de Sousa, & Castelletti, 2004) method: (a) To leverage the size effect, study area was divided into 50*50 km2 grid cells, covering the land area of China including Taiwan; (b) assign species occurrence into each grid cell; (c) delimit OGUs where contains at least two endemic species and land area covered more than half of grid cells (1,250 km<sup>2</sup>).</span></p> <p><span><span>(4)<span> </span></span></span><span>“Climate”. bio 1-19 were download from CHELSA: https://chelsa-climate.org/timeseries/; (Karger et al., 2017; Karger, Nobis, Normand, Graham, & Zimmermann, 2021). I also attached the description for chelsa.</span></p> <p><span> </span></p> <p><span><span>(5)<span> </span></span></span><span>“Trait”. We tried our best to access to the information regarding to leaf length, height and seed diameter. For few cases, you may still find N.A. data. I believe it’s very common in macroecology research.</span></p>
Precipitation, rather than temperature drives coordination of multidimensional root traits with ectomycorrhizal fungi in alpine coniferous forests
<ol> <li><span>The interactions between roots and mycorrhizal fungi are critical for our understanding of the multidimensional root economics space. Our knowledge on their relationships comes mainly from arbuscular mycorrhizal (AM) plants, and less is known about how roots are coordinated with ectomycorrhizal (ECM) fungal communities, especially in ECM-dominated alpine forests that are highly sensitive to climate change worldwide.</span></li> <li> <span>Here, we investigated the coordination between roots and ECM fungi and their drivers by measuring </span><span>multiple</span><span> root traits, ECM fungal </span><span>composition and environmental factors of 47 coniferous populations across the alpine coniferous forests </span><span>on the Tibetan Plateau.</span> </li> <li> <span>Our results reveal two independent fine-root trait dimensions, i.e., root foraging dimension and root uptake dimension, which are represented by</span> <span>root diameter-specific root length, root tissue density-root N concentration. Importantly, the hyphal exploration-type-based ECM foraging correlated significantly with both root foraging and root uptake dimension. Further, in the low-temperature plateau, it is precipitation-induced changes in soil moisture, soil nutrients and pH that drive the proportion of </span><span>longer-</span><span>distance hyphal exploration types to increase with </span><span>higher root </span><span>foraging </span><span>by higher </span><span>specific root length, and </span><span>to </span><span>decrease with </span><span>higher </span><span>uptake </span><span>by higher </span><span>root N concentration.</span> </li> <li> <span><em>Synthesis</em>.</span><span> The coordination of multidimensional root traits with ECM fungi differs greatly from the well-recognized pattern in AM plants that mycorrhizal fungi connect predominantly with root foraging and that roots and mycorrhizal fungi are temperature sensitive. These findings provide a new insight for our holistic understanding of how roots and mycorrhizal fungi vary collaboratively and hence driving plant community assembly and responses to the changing climate.</span> </li> </ol>
Data from: Coordination of bark and wood traits underlies forest-to-savanna evolutionary transitions
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Trait coordination in boreal mosses reveals a bryophyte economics spectrum
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Coordination of leaf economics traits within the family of the world’s fastest growing plants (Lemnaceae)
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Weak coordination between leaf drought tolerance and proxy traits in herbaceous plants
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Data from: Extreme warming coordinately shifts root and leaf traits of alpine plants towards conservatism
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Precipitation, rather than temperature drives coordination of multidimensional root traits with ectomycorrhizal fungi in alpine coniferous forests
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Data from: Hydraulic traits are coordinated but decoupled from carbon traits in herbaceous species
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Data from: Drought affects the coordination of belowground and aboveground resource-related traits in Solidago canadensis in China
Quantifying patterns of variation and coordination of plant functional traits can help to understand the mechanisms underlying both invasiveness and adaptation of plants. Little is known about the coordinated variations of performance and functional traits of different organs in invasive plants, especially in response to their adaptation to environmental stressors. To identify the responses of the invasive species Solidago canadensis to drought, 180 individuals were randomly collected from 15 populations and 212 ramets were replanted in a greenhouse to investigate both the response and coordination between root and leaf functional traits. Drought significantly decreased plant growth and most of the root and leaf functional traits, i.e. root length, surface area, volume and leaf size, number, and mass fraction, except for the root length ratio and root mass fraction. Phenotypic plasticity was higher in root traits than in leaf traits in response to drought, and populations did not differ significantly. The plasticity of most root functional traits, i.e., root length (RL), root surface area (RSA), root volume (RV), and root mass fraction (RMF), were significantly positively correlated with biomass between control and drought. However, the opposite was found for leaf functional traits, i.e. specific leaf area (SLA), leaf area ratio (LAR), and leaf mass fraction (LMF). Drought enhanced the relationship between root and leaf, i.e., 26 pairwise root-leaf traits were significantly correlated under drought, while only 15 pairwise root-leaf traits were significantly correlated under control conditions. Significant correlations were found between biomass and all measured functional traits except for leaf size. RV, root length ratio, RMF, total area of leaves, and LMF responded differently to water availability. These responses enable S. canadensis to cope with drought conditions and may help to explain the reason of the vast ecological amplitude of this species.
Data from: Linking coordinated hydraulic traits to drought and recovery responses in a tropical montane cloud forest
Understanding plant hydraulic functioning and water balance during drought has become key in predicting species survival and recovery. However, the insightful studies that couple physiological and morphological attributes do not exist in many ecosystems, such as the vulnerable Tropical Montane Cloud Forests (TMCF). In this study, we evaluate drought resistance and recovery for saplings for five tree species spanning deciduous to evergreen habits from a Mexican TMCF. Methods Drought treatments withheld water until plants reached species-specific P50 or P88 values (pressures required to induce a 50 or 88 percent loss in hydraulic conductivity), at which point they were rewatered. Drought resistance were considered within the isohydric-anisohydric framework and compared to leaf gas exchange, water status, pressure-volume curves, specific leaf area, and stomatal density. Results TMCF species closed stomata well before significant losses in hydraulic conductivity (isohydric). Yet, despite the coordination of these traits, they did not predict how long it took species to reach critical hydraulic thresholds. Instead, maximum photosynthesis rates explained these times reinforcing the linkage between hydraulic and carbon dynamics. Despite varying hydraulic conductivities, stomatal responses, and times to hydraulic thresholds, all study plants except for two individuals (out of 60) recovered following rewatering. The recovery of photosynthesis and stomatal conductance was explained by the P50 values and isohydry. Conclusions This study raises new questions surrounding drought management strategies, recovery processes, and how lethal thresholds are defined. Further studies need to consider the role of water and carbon balance in allowing for both survival and recovery to drought.
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Allen Brain Atlas
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OpenNeuro
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