Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
330
datasets available to search
ShareScore release 0.9.0
Dataset results
330 results for “seed plant”
Fig. 7. Bergera koenigii L. A. Plants. B. Inflorescence. C. Pistil and stamens. D–E. Infructescence. F. Fruits. G. Seeds. H in Taxonomic revision of Bergera J.Koenig ex L. (Rutaceae) based on the molecular phylogeny and morphology
Fig. 7. Bergera koenigii L. A. Plants. B. Inflorescence. C. Pistil and stamens. D–E. Infructescence. F. Fruits. G. Seeds. H. Ovary crossection. Photos taken by Feng-Juan Mou in China.
Where should they come from? Where should they go? Several measures of seed source locality fail to predict plant establishment in early prairie restorations
<ol> <li>During the "decade on restoration," we must understand how to reliably re-establish native plant populations. When establishing populations through seed addition, practitioners prioritize obtaining seed from locations geographically near the restoration site (i.e., "local seed sourcing"). They are assumed to be under similar environmental conditions to the restoration site and should establish more robust plant populations and preserve local biotic interactions than seeds sourced from further away. However, this assumption remains virtually untested in realistic restoration settings and the importance of seed sourcing, relative to other factors such as seeding rate and management regimes, is unclear.</li> <li>To determine if seed source impacts plant establishment, abundance, and phenology, we developed a partnership between university researchers and a native seed producer that kept records on where their seed was sourced from and where it was planted. At each site, we recorded the abundance and phenological stage of five commonly used tallgrass prairie restoration species seeded at 24 sites undergoing restoration across Michigan. We considered two measures of seed source locality: geographic distance (seeds were sourced from locations 6–750km away from their respective restoration sites) and climate distance. We also obtained data on the seeding rate and post-seeding management efforts at each site.</li> <li>We found that no measure of seed source locality predicted the likelihood of plant establishment or abundance at restoration sites. However, sites sown with seed from further away, or from cooler and wetter climates, had a greater proportion of flowering individuals earlier in the season. Finally, sites with higher seeding rates had greater plant abundance, and post-seeding management of the restoration site increased the likelihood a species would establish by 36%.</li> <li>Overall, these results suggest that seed sourcing did not impact plant establishment or abundance in our system. However, using fewer local seed sources can alter flowering phenology.</li> <li>Our results suggest that tallgrass prairie restoration efforts should prioritize higher seeding rates, post-seeding management, and might expand the region seed sources are considered "local", though this could impact flowering phenology. Future research leveraging native seed producer records can help answer critical questions about restoration seed sourcing.</li> </ol>
Commodity canola and seed canola visitation and plant data
<p>Insect-mediated pollination of crops is an important service to agriculture, as increased insect visitation can increase fruit production by increasing pollen deposition. Unfortunately, pollination is often treated as a <span>"</span>black box<span>"</span>, and pollination management suffers from key knowledge gaps that hinder its greater utility, particularly the specific mechanisms underlying the processes of visitation, pollination, and fruit production. We present a causal model that links insect visitation to pollination to three separate components of yield, using field data from two types of canola (<span><em>Brassica</em> <em>napus</em></span>) production systems. Our results demonstrate that yield in commodity canola fields is primarily determined by plant size, and we found no relationship between honey bee (<span><em>Apis</em> <em>mellifera</em></span>) visitation and pollen deposition, or pollen deposition and seed yield. In contrast, yield in seed production canola fields was similarly controlled by plant size, but there was also a strong relationship between alfalfa leafcutting bee (<span><em>Megachile</em> <em>rotundata</em></span>) visitation and pollen deposition, as well as pollen deposition and seed yield. Leafcutting bee visitation in particular strongly increased pollen deposition in seed canola fields, whereas honey bee visitation did not. This model serves as a step towards a dynamic model of pollination services and highlights the relative importance of bee pollination in canola production.</p>
Limited evidence for a positive relationship between hybridization and diversification across seed plant families
Open the record for dataset details and reuse information.
Ant handling changes myrmecochore seed coat microbiomes and alters diversity of seed-borne plant pathogenic fungi
Open the record for dataset details and reuse information.
Commodity canola and seed canola visitation and plant data
Open the record for dataset details and reuse information.
Data from: Co-Mast: Harmonized seed production data for woody plants across U.S. long term research sites
Open the record for dataset details and reuse information.
VCF files of common grassland plants from wild collected seeds of 19 common European grassland species with up to 4 consecutive generations grown in monoculture for seed production for restoration
Open the record for dataset details and reuse information.
Where should they come from? Where should they go? Several measures of seed source locality fail to predict plant establishment in early prairie restorations
Open the record for dataset details and reuse information.
Interspecific competition reduces seed dispersal in an annual plant and slows simulated range expansions
Open the record for dataset details and reuse information.
Data from: Species introductions shift seed dispersal potential more than extinctions across 120 island plant–frugivore communities
Open the record for dataset details and reuse information.
Plant species percent cover data: Seed Addition in Lawrence Strips
Description of Research Goals and Accomplishments: This experiment will test the affect of various species of seed addition and differing amounts of them on a newly abandoned area of the Lawrence strips. This experiment was set up in the northern end of the Lawrence strips after it was newly disked (no standing vegetation). There are 60 plots, each 3m x 3m with a .5m walkway between them. There are fifteen treatments, with 4 replicates of each treatment. The treatments are as follows, with the species of seed(s) and the amount added per plot: l. Ambrosia artemisiifolia, 90g 2. Agropyron repens, 67g 3. Poa pratensis, 45g 4. Schizachyrium scoparium, 67g 5. Andropogon gerardi, 67g 6. Mix of forbs, 50g 7. Mix 2 (see below) 8. Ambrosia artemisiifolia, 9g 9. Agropyron repens, 6.7g lO. Poa pratensis, 4.5g ll. Schizachyrium scoparium, 6.7g 12. Andropogon gerardi, 6.7g 13. Mix of forbs, 5g 14. Mix 3 (see below) 15. control-no seeds added Mix of forbs contains seeds of Achillea millefolium, Agastache foeniculum, Amorpha canescens, Aster azureus, Coreopsis palmata, Heliopsis helianthoides, Lespedeza capitata, Liatris aspera, Monarda fistulosa, Petalostemum candidum, Petalostemum purpureum, Rosa arkansana, Rudbeckia hirta, Solidago nemoralis, Solidago ptarmicoides, Solidago rigida, Verbena stricta and Zizia aurea. Mix 2 contains 50g Mix of forbs + 67g Schizachyrium scoparium + 67g Andropogon gerardi + 45g Poa pratensis + 90g Agropyron repens per plot. Mix 3 contains 5g Mix of forbs * 6.7g Schizachyrium scoparium + 6.7g Andropogon gerardi + 5g Poa pratensis + 9g Agropyron repens per plot. The seeds were added to the plots on June 14, 1993.
Plant species percent cover data: Addition of Schizachyrium scoparium Seeds to the Lawrence Strips
Here, we use a simple experimental approach to test the hypothesis that `niche differentiation` promotes coexistence. We created an experimental gradient in the abundance of a long-lived, competitively dominant species (S. scoparium) and allowed competitive interactions to proceed without further manipulation.
Independent evolutionary changes in fine-root traits among main clades during the diversification of seed plants
<p><b>Rationale</b>: Changes in fine-root morphology are typically associated with transitions from the ancestral arbuscular mycorrhizal (AM) to the alternative ectomycorrhizal (ECM) or non-mycorrhizal (NM) associations. However, the modifications in root morphology may also coincide with new modifications in leaf hydraulics and growth habit during angiosperm diversification. These hypotheses have not been evaluated concurrently, which limits our understanding of the causes of fine-root evolution.</p> <p><b>Methods</b>: To explore the evolution of fine-root systems, we assembled a 600+ species database to reconstruct historical changes in seed plants over time. We utilize ancestral reconstruction approaches together with phylogenetically informed comparative analyses to test whether changes in fine-root traits were most strongly associated with mycorrhizal affiliation, leaf hydraulics or growth form.</p> <p><b>Key Results</b>: Our findings show significant shifts in root diameter, specific root length and root tissue density as angiosperms diversified, largely independent from leaf changes or mycorrhizal affiliation. Growth form was the only factor associated with fine-root traits in statistical models including mycorrhizal association and leaf venation, suggesting substantial modifications in fine-root morphology during transitions from woody to non-woody habits.</p> <p><b>Conclusion</b>: Divergences in fine-root systems were crucial in the evolution of seed plant lineages, with important implications for ecological processes in terrestrial ecosystems.</p>
Data from: Interactions between seed-dispersing ant species affect plant community composition in field mesocosms
<p>1. In generalized mutualisms, species vary in the quality of services they provide to their partners directly via traits that affect partner fitness and indirectly via traits that influence interactions with mutualist species that play similar functional roles. Myrmecochory, or seed dispersal by ants, is a generalized mutualism with ant species varying in the quality of dispersal services they provide to their plant partners. Variation in ant species identity can directly impact seed dispersal patterns and plant community composition; however, we know less about how interactions among seed-dispersing ant species indirectly influence plant partners.</p> <p>2. The invasive ant, <i>Myrmica rubra,</i> is a high-quality seed-disperser in its native range and interacts with myrmecochores (ant-dispersed plants) and the high-quality seed disperser <i>Aphaenogaster </i>sp. in its invaded range. We use this system to examine how interactions between two functionally similar mutualist ant species influence the recruitment and community composition of ant-dispersed plants.</p> <p>3. We performed a field mesocosm experiment and a lab behavioral experiment to compare discovery and dominance behaviors between ant species, and seed dispersal and seedling recruitment of four myrmecochore species among intraspecific interaction treatments of each ant species and an interspecific interaction treatment.</p> <p>4. We found that <i>M. rubra</i> was better at discovering and dispersing seeds, but that <i>Aphaenogaster</i> sp. was dominantly aggressive over <i>M. rubra</i>. Interspecific interactions dampened seed dispersal relative to dispersal by the better disperser. Despite this dampening, we found no effect of interspecific interaction on seedling recruitment. However, community composition of seedlings in the interspecific interaction treatment was more similar to composition in the aggressively dominant ant (<i>Aphaenogaster </i>sp.) treatment than in the better discoverer ant (<i>M. rubra</i>) treatment.</p> <p>5. We show that interspecific interaction between mutualist species in the same functional guild affects the outcome of mutualistic interactions with partner species. Despite the native ant dispersing fewer seeds, its dominance over the subordinate (invasive) ant has the potential to allow for some level of biotic resistance against the effects of M. rubra on plant communities when these species co-exist.</p>
Data from: Seed size predicts global effects of small mammal seed predation on plant recruitment
<p>We conducted a global literature review and meta-analysis to evaluate whether seed size could predict post-dispersal seed predator effects on seed removal and plant recruitment, respectively. Datasets were built using data extracted from published studies focusing on seed predation by small mammals (see Methods for criteria and data extraction protocol). We found that seed size predicted small mammal seed removal rates and their impacts on plant recruitment consistent with optimal foraging theory, with intermediate seed sizes most strongly impacted globally - for both native and exotic plants. However, differences in seed size distributions among ecosystems conditioned seed predation patterns, with relatively larger-seeded species most strongly affected in grasslands (smallest seeds), and relatively smaller-seeded species most strongly affected in tropical forests (largest seeds). Such size-dependent seed predation has profound implications for coexistence among plants because it may enhance or weaken opposing life-history tradeoffs in an ecosystem-specific manner. Our results suggest that seed size may serve as a key life-history trait that can integrate consumer effects to improve understandings of plant coexistence. </p>
Data from: Tracking temperate fish reveals their relevance for plant seed dispersal
<p>Seed dispersal is a fundamental process for plant communities, especially now that our changing world demands rapid colonization of new habitats. Long-distance dispersal is especially important for plant population persistence and range expansions.</p> <p>The contribution of fishes to plant seed dispersal in aquatic ecosystems (ichthyochory) has long been overlooked. Although we know fish disperse seeds, it is largely unknown where, when and how far – especially in temperate regions. Here we studied the potential of fish to disperse seeds locally and over long distances, specifically hypothesizing that i) dispersal by fish depends on the season, ii) individual fish contribute differently to seed dispersal, and iii) water regulating structures (barriers) inhibit seed dispersal.</p> <p>We tested our hypotheses by acoustically tracking 71 common carp (Cyprinus carpio) with 21 hydrophones in a 38km-long study system for >2 years in the Netherlands. We calculated potential seed dispersal throughout this system by combining nearly 1.5 million location registrations with experimentally assessed retention times of seeds after ingestion (i.e. time between ingestion and egestion).</p> <p>Seed dispersal on local scales was quantitatively most important during summer and autumn, with high dispersal potential in a range of four kilometres from the location of seed ingestion. Long-distance dispersal up to 16 km was possible at low probabilities in spring. In winter, most seeds were egested within two km. Maximum and median dispersal distances varied widely among individuals, emphasizing variation in effectiveness among individual fish for seed dispersal. Less than two percent of all fish movements reached beyond sluices and weirs, indicating that anthropogenic barriers in freshwater systems strongly reduced the potential of common carp to disperse seeds to these areas.</p> <p>This study shows that common carp can locally disperse plant seeds with high probabilities, and over distances up to 16 km with low probabilities throughout temperate ecosystems. This can contribute to restoration and maintenance of plant community diversity. However, this ecosystem function of fish to plants requires intact fish populations – because not all individual fish contribute equally to dispersal – and unrestricted connectivity throughout aquatic ecosystems.</p>
Data from: Induced phenological avoidance: a neglected defense mechanism against seed predation in plants
<p>1. Flowering phenology is an important life history trait affecting plant reproductive performance and is influenced by various abiotic and biotic factors. Pre-dispersal seed predation and pollination are expected to impose counteracting selection pressure on flowering phenology, with pre-dispersal seed predation expected to favor off-peak flowering and pollination to favor synchronous flowering. <br> 2. Here we studied the effect of pre-dispersal seed predation by the beetle Byturus ochraceus, a specialist seed herbivore, on the flowering phenology of Geum urbanum. This forest understorey plant species is self-pollinating, so that the influence of seed predation can be studied independent from pollination. We measured in detail the timing and predation rate of individual flowers during two consecutive years in more than 60 individuals. We tested the hypotheses that pre-dispersal seed predation exerts selection for within-season compensatory flowering as well as for induced phenological avoidance in the following season.<br> 3. We found no indication for compensatory flowering within a growing season, but plants that experienced predation shifted their flowers to the end of the flowering season the subsequent year. This induced phenological avoidance points to a plastic response to pre-dispersal seed predation that may be adaptive. Importantly, the delay in flower production came at a cost, since flowers later in the season had a reduced seed output, presumably because of increasing light limitation following forest canopy closure. <br> 4. Synthesis: Herbivory by specialist enemies can cause serious fitness decline in hosts. We here show that induced shifts in phenology can form an important defense strategy against pre-dispersal seed predation. The induced mismatches between herbivore and host phenology are anticipated to be adaptive when herbivory is predictable across successive flowering periods.</p>
A large-scale assessment of plant dispersal mode and seed traits across human-modified Amazonian forests
1. Quantifying the impact of habitat disturbance on ecosystem function is critical for understanding and predicting the future of tropical forests. Many studies have examined post-disturbance changes in animal traits related to mutualistic interactions with plants, but the effect of disturbance on plant traits in diverse forests has received much less attention. 2. Focusing on two study regions in the eastern Brazilian Amazon, we used a trait-based approach to examine how seed dispersal functionality within tropical plant communities changes across a landscape-scale gradient of human modification, including both regenerating secondary forests and primary forests disturbed by burning and selective logging. 3. Surveys of 230 forest plots recorded 26,533 live stems from 846 tree species. Using herbarium material and literature, we compiled trait information for each tree species, focusing on dispersal mode and seed size. 4. Disturbance reduced tree diversity and increased the proportion of lower wood-density and smaller-seeded tree species in study plots. Unexpectedly, disturbance also increased the proportion of stems with seeds that are ingested by animals and reduced those dispersed by other mechanisms (e.g. wind). Older secondary forests had functionally similar plant communities to the most heavily disturbed primary forests. 5. <i>Synthesis</i>. Anthropogenic disturbance has major effects on the seed traits of tree communities, with implications for mutualistic interactions with animals. The higher importance of animal-mediated seed dispersal in disturbed and recovering forests highlights the importance of avoiding defaunation or promoting faunal recovery. The changes in mean seed width suggest larger vertebrates hold especially important functional roles in these human-modified forests. Monitoring fruit and seed traits can provide a valuable indicator of ecosystem condition, emphasising the importance of developing a comprehensive plant traits database for the Amazon and other biomes.
Parasitoids of leaf herbivores enhance plant fitness and do not alter caterpillar-induced resistance against seed beetles
<p>1. Organisms of the third trophic level can indirectly interact with plants. However, whether parasitoids of herbivores have a positive effect on plant fitness has been controversial. In addition to possible effects on plant fitness, parasitoid-mitigated herbivory can modify plant physiological responses and thereby alter the plant-mediated indirect interactions between different herbivore species. These types of indirect multitrophic interactions remain largely unexplored. Thus, to understand the full effect of the third trophic level on plants, it is necessary to consider the context of the community of interacting species, both herbivores and their enemies.</p> <p>2. Here, we investigated if parasitoids of leaf-feeding caterpillars affect plant fitness (seed quantity and quality) and the consequences for seed-dwelling insects at the second and third trophic levels through plant mediated effects. To test this, we exposed lima bean plants (<i>Phaseolus lunatus</i>), under controlled field conditions, to unparasitized caterpillars (<i>Spodoptera latifascia</i>) or caterpillars that were parasitized by the parasitoid species <i>Cotesia marginiventris</i>. Later in the season, we measured seed production and infestation by seed beetles and their parasitoids.</p> <p>3. We found that parasitoids significantly reduced the leaf damage inflicted by the caterpillars, such that the plants suffered no loss in seed production. Yet, parasitoids had no effect on the emergence of seed beetles (<i>Zabrotes subfasciatus</i> and <i>Acanthoscelides obtectus</i>), which was equally reduced in plants attacked by unparasitized and by parasitized caterpillars. Seeds from undamaged plants were significantly more attacked by <i>Z. subfasciatus</i> beetles. Parasitism rates of seed beetle larvae were similar for all treatments.</p> <p>4. Although parasitized caterpillars did not damage the plants enough to reduce seed production (unlike unparasitized caterpillars), the damage they inflicted induced resistance against other herbivores. Taken together, these results reveal how parasitoids can indirectly enhance plant fitness in the context of the local ecological networks. These findings have significant implications for natural and agricultural systems since they reveal that the indirect interaction between plants and parasitoids can be beneficial in communities with multiple herbivore species.</p>
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.