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330 results for “seed plant”
Research data supporting the publication "Seed Size Variation of Trees and Lianas in a Tropical Forest of Southeast Asia: Allometry, Phylogeny, and Seed Trait - Plant Functional Trait Relationships"
<p><em>Research data supporting the publication:</em></p> <p><br> <strong>Seed size variation of trees and lianas in a tropical forest of Southeast Asia: allometry, phylogeny, and seed trait - plant functional trait relationships</strong></p> <p><strong>Original Research, Front. Plant Sci. - Functional Plant Ecology</strong></p> <p>Here, we compiled a unique dataset of seed size (seed mass and geometrical size metrics) based on collections of more than 5,200 seeds of 196 woody plant species, covering >98 and 70% of tree and liana stems, respectively, located on a 30-ha plot in a tropical evergreen forest in central Thailand. Seeds, are stored in the BBH herbarium at BIOTEC of the National Science and Technology Development Agency, Thailand. Many seeds (38.3%) have been collected from gibbons’ feces during gibbon monitoring. Most seeds of species dispersed by gibbons (through defecation) have hard seed coats and do not change in their morphology during gut passage. However, most seeds (46.4%) were collected while monitoring plant phenology. Rarely, when seeds were not available in the herbarium, mostly from rare or non-fruiting species (15.3%), we used information from field-recorded and unpublished data of Mo Singto plot. Seed mass refers to the dry weight of endosperm and embryo including the seed coat but excluding any morphological structures, such as wings, that aid dispersal. Before measuring and weighing, seeds were oven-dried at 60°C for at least 3 days. After drying, we immediately measured each seed in three dimensions: length (L), the longest linear dimension; width (W), the widest orthogonal direction to L; and thickness (T), the largest orthogonal side to both the L and W, using a Vernier caliper<br> with 2-digit micrometer precision. We weighed the same seed on a microgram balance (PB303, Mettler, Toledo). </p>
Data for: Quantifying patch-specific seed dispersal and local population dynamics to estimate population spread of an endangered plant species
<p>Dataset on seed dispersal and population spread for the paper</p> <p class="Default"><span><b>Quantifying patch-specific seed dispersal and local population dynamics to estimate population spread of an endangered plant species</b></span></p> <p>Jinlei Zhu<sup>1, 2,</sup> *, Karolína Hrušková<sup>1, 3</sup>, Hana Pánková<sup>1</sup>, Zuzana Münzbergová<sup>1, 3</sup></p> <p><sup>1</sup>Institute of Botany, Czech Academy of Sciences, Průhonice, Czech Republic</p> <p class="Default"><span><sup>2</sup>Institute of Landscape and Plant Ecology, University of Hohenheim, Stuttgart, Germany</span></p> <p class="Default"><span><sup>3</sup>Department of Botany, Faculty of Science, Charles University, Prague, Czech Republic</span></p> <p class="Default"><span>*Corresponding author: jinlei.zhu@uni-hohenheim.de</span></p> <p>Institute of Landscape and Plant Ecology</p> <p>University of Hohenheim</p> <p>Ottilie-Zeller-Weg 2, 70599 Stuttgart, Germany</p>
Seed dispersal by wind decreases when plants are water-stressed, potentially counteracting species coexistence and niche evolution
<p>Hydrology is a major environmental factor determining plant fitness, and hydrological niche segregation (HNS) has been widely used to explain species coexistence. Nevertheless, the distribution of plant species along hydrological gradients does not only depend on their hydrological niches but also on their seed dispersal, with dispersal either weakening or reinforcing the effects of HNS on coexistence. However, it is poorly understood how seed dispersal responds to hydrological conditions. To close this gap, we conducted a common-garden experiment exposing five wind-dispersed plant species (Bellis perennis, Chenopodium album, Crepis sancta, Hypochaeris glabra, and H. radicata) to different hydrological conditions. We quantified the effects of hydrological conditions on seed production and dispersal traits, and simulated seed dispersal distances with a mechanistic dispersal model. We found species-specific responses of seed production, seed dispersal traits, and predicted dispersal distances to hydrological conditions. Despite these species-specific responses, there was a general positive relationship between seed production and dispersal distance: plants growing in favourable hydrological conditions not only produce more seeds but also disperse them over longer distances. This arises mostly because plants growing in favourable environments grow taller and thus disperse their seeds over longer distances. We postulate that the positive relationship between seed production and dispersal may reduce the concentration of each species to the environments favourable for it, thus counteracting species coexistence. Moreover, the resulting asymmetrical gene flow from favourable to stressful habitats may slow down the microevolution of hydrological niches, causing evolutionary niche conservatism. Accounting for context-dependent seed dispersal should thus improve ecological and evolutionary models for the spatial dynamics of plant populations and communities.</p>
Supplementary material 1 from: Moyano J, Chiuffo MC, Policelli N, Nuñez MA, Rodriguez-Cabal MA (2019) The interplay between propagule pressure, seed predation and ectomycorrhizal fungi in plant invasion. NeoBiota 42: 45-58. https://doi.org/10.3897/neobiota.42.30978
: Data type: multimedia
Supplementary material 2 from: Cohen O, Gamliel A, Katan J, Shubert I, Guy A, Weber G, Riov J (2019) Soil solarization based on natural soil moisture: a practical approach for reducing the seed bank of invasive plants in wetlands. NeoBiota 51: 1-18. https://doi.org/10.3897/neobiota.51.36838
: Data type: measurement
Supplementary material 1 from: Cohen O, Gamliel A, Katan J, Shubert I, Guy A, Weber G, Riov J (2019) Soil solarization based on natural soil moisture: a practical approach for reducing the seed bank of invasive plants in wetlands. NeoBiota 51: 1-18. https://doi.org/10.3897/neobiota.51.36838
: Data type: measurement
Predictive ability of perennial ryegrass spaced-plant nurseries for turfgrass and seed production swards in Minnesota
<p>Turf-type perennial ryegrass (<i>Lolium perenne</i> L.) success depends both on adequate turfgrass quality and economic seed yield. In most breeding programs, spaced plants are the initial unit of selection in which observations of related individuals dictate selections of superior germplasm for further testing. As such, spaced plants must be predictive of both seed production and turfgrass growing environments. This study investigated the effectiveness of both standard (3 plants m<sup>-2</sup>) and competitive (23 plants m<sup>-2</sup>) spaced-plant nurseries as selection environments with respect to two sward environments as well as employed a novel image analysis technique for several key traits. Seed production, turfgrass, and the two spaced-plant growing environments were tested at two locations in Minnesota. Turfgrass quality traits were measured in 2017 and 2018 and seed production traits were measured in 2018. Automated image analysis was able to predict the traditional visual scoring values at both locations for crown rust severity (r<sub>p</sub> > 0.79, P < 0.001), winter injury (r<sub>p</sub> > 0.89, P < 0.001), and texture (r<sub>p</sub> > 0.88, P < 0.001). Increasing competition in between spaced plants altered plant phenotype and improved accuracy for vegetative biomass, crown rust severity, seed yield, and at one location, turfgrass quality. There was no benefit of increasing competition for several traits such as genetic color, fertile tillers, and spikelet number. While the competitive design was not useful for all traits, from a feasibility standpoint the competitive design took up less space and often made measurements and observations much easier for bunch-type grasses.</p>
Figure 2 from: Alonso P, Iriondo J (2014) URJC GB dataset: Community-based seed bank of Mediterranean high-mountain and semi-arid plant species at Universidad Rey Juan Carlos (Spain). PhytoKeys 35: 57-72. https://doi.org/10.3897/phytokeys.35.6746
Figure 2 - Distribution map of the two species of URJC GB dataset endemic to Spain: a Helianthemum marifolium ssp. conquense b Lupinus mariae-josephae (Source: http://www.anthos.es).
Figure 3 from: Alonso P, Iriondo J (2014) URJC GB dataset: Community-based seed bank of Mediterranean high-mountain and semi-arid plant species at Universidad Rey Juan Carlos (Spain). PhytoKeys 35: 57-72. https://doi.org/10.3897/phytokeys.35.6746
Figure 3 - Basic elements of the project design. 1 Seed collection in the target plant communities 2 Gathering of passport data on the geographical, physical and biotic features of the locality of seed collection 3 Seed processing to prepare seed accessions 4 Initial germination experiments to obtain seed germinability 5 Seed storage in cold-dry conditions 6 Use in research experiments.
Data from: The advantage of male-biased flower production in andromonoecious plants under intensive predispersal seed predation
<p><span>1) Not only mutualistic plant–pollinator interactions but also antagonistic plant–herbivore interactions can be a selective force on sex allocation in angiosperms. In this study, we investigate how predispersal seed predation affects the reproductive success and floral gender of andromonoecious herbs on a natural snowmelt gradient.</span></p> <p><span>2) The developing fruits of an alpine herb (<em>Peucedanum</em> <em>multivittatum</em>: Apiaceae) were intensively predated by lepidopteran larvae (<em>Phaulernis</em> <em>fulviguttella</em>: Epermeniidae) in the early-snowmelt populations, where flowering occurred from mid to late July. In the late-snowmelt populations, where flowering occurred after early August, seed predation was negligible due to the oviposition of the predator moths being concentrated in early summer. The moths tended to oviposit on plants with more perfect flowers and taller inflorescences, whereas the number of male flowers was independent of their oviposition preference. </span></p> <p><span>3) Responding to the oviposition behavior, the proportion of male flowers was the largest and floral stems were the shortest in the early-snowmelt population suffering from intensive predation damage. The contribution of perfect flowers to intact seed production significantly decreased with earlier flowering along the snowmelt gradient. Fitness measurements using genetic markers revealed that the increase in flower number resulted in greater success as a pollen donor within a population. Thus, plants can ameliorate the risk of predation damage to sired seeds by wider pollen dispersal. </span></p> <p><span>4) Synthesis: Taken together, the greater production of male flowers at the expense of perfect flowers is advantageous under intensive predation pressure owing to the reduction of predation damage (female fitness) and the improvement of siring success (male fitness). These results revealed that predispersal seed predation acts as a selective force that promotes male-biased sex allocation in andromonoecious plants.</span></p>
Data from: Seed size regulates plant dispersal distances in flowing water
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Data from: Costs and benefits of non-random seed release for long distance dispersal in wind-dispersed plant species
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Data from: Temporal dynamics of seed excretion by wild ungulates: implications for plant dispersal
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Data from: The effect of plant identity and mixed feeding on the detection of seed DNA in regurgitates of carabid beetles
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Lifespan, clonality and polyploidy regulate the global environmental niches of plants via seed dispersal in space and time
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Data from: Spatial heterogeneity of a parasitic plant drives the seed-dispersal pattern of a zoochorous plant community in a generalist dispersal system
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Avian seed dispersal may be insufficient for plants to track future temperature change on tropical mountains
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Data from: Biomechanical and leaf-climate relationships: a comparison of ferns and seed plants
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Data from: Global biogeography of mating system variation in seed plants
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Data from: Fruiting strategies of perennial plants: a resource budget model to couple mast seeding to pollination efficiency and resource allocation strategies
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