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.
1,730
datasets available to search
ShareScore release 0.7.1
Dataset results
1,730 results for “Pollination”
Elevational and seasonal patterns of plant pollinator networks in two highland tropical ecosystems in Costa Rica
<p>Plant pollinator interaction matrices used to construct plant-pollinator interaction networks in two highland tropical ecosystems in Costa Rica. Numbers in matrices indicates the number of interactions recorded. The names of the files indicates the collect site (MF: Montane Forest; PAR= Paramo) and the season of the year (Dry and Rainy seasons, respectively).</p>
Landscape structure and farming management interacts to modulate pollination supply and crop production in blueberries
<p><span>Pollination services are affected by landscape context, farming management, and pollinator community structure, all of which impact flower visitation rates, pollen deposition and final production. We studied these processes in Argentina for Highbush Blueberry crops which depend on pollinators to produce marketable yields. </span></p> <p><span>We studied how land cover and honeybee stocking influence the abundance of wild and managed pollinators in blueberry crops, using structural equation modeling to disentangle the cascading effects through which pollinators contribute to blueberry fruit number, size, nutritional content and overall yield. </span></p> <p><span>All pollinator functional groups responded to landscape changes at a spatial scale under 1000 m, and the significance or direction of the effects were modulated by the field-level deployment of honeybee hives. </span></p> <p><span>Fruit diameter increased with pollen deposited, but decreased with honeybee abundance, which, had indirect effects on fruit acidity and sugar content. Honeybees had a positive effect on the number of fruit produced by the plants and also benefited the overall yield (kg plant</span><sup><span>-1</span></sup><span>) through independent effects on both the quality and quantity components of fruit production.</span></p> <p><span><em>Synthesis and applications:</em> </span></p> <p><span>Deployment of beehives in blueberry fields can buffer, but not compensate for the negative effects on honeybee abundance produced by surrounding large scale none-flowering crops. Such compensation would require high-quality beehives by monitoring their health and strength.</span> <span>The </span><span>contribution of honeybees to crop production is not equal across production metrics. That is, higher abundance of honeybees increases the number of berries produced, but at the cost of smaller and more acidic fruits, potentially reducing market value. Growers must consider this trade-off between fruit quantity and quality when actively managing honeybee abundance. </span></p>
Data and code corresponding to the article "Interaction network structure explains species temporal persistence in empirical plant-pollinator communities"
<p>This upload contains the Datasets and code to generate the results of the article "Interaction network structure explains species temporal persistence in empirical plant-pollinator communities".</p><p>The database comprises two files containing the abundances of plants and pollinators, and one containing the interaction networks among plants and pollinators. </p><p>The code folder contains the code to generate the results, and to generate the figures of the manuscript. </p>
Agricultural soil legacy influences multitrophic interactions between crops, their pathogens, and pollinators
<p>Soil legacy influences plant interactions with antagonists and below-ground mutualists. Plant-antagonist interactions can jeopardize, while soil mutualists can enhance, plant-pollinator interactions. This suggests that soil legacy, either directly or mediated through plant symbionts, affects pollinators. However, despite the importance of pollinators to natural and managed ecosystems, there is almost no information on how soil legacy affects plant-pollinator interactions. We assessed effects of soil management legacy (organic vs. conventional) on floral rewards and plant interactions with wild pollinators, herbivores, beneficial fungi, and pathogens. We used an observational dataset and structural equation models to evaluate hypothesized relationships between soil and pollinators, then tested observed correlations in a manipulative experiment. Organic legacy increased mycorrhizal fungal colonization and improved resistance to powdery mildew, which promoted pollinator visitation. Further, soil legacy and powdery mildew independently and interactively impacted plant traits important to pollinators, including floral traits and floral reward nutrients. Our results indicate that pollination could be an overlooked consequence of soil legacy and suggests opportunity to develop long-term soil management plans that benefit pollinators and pollination.</p>
Data for: Pollinator and habitat-mediated selection as potential contributors to ecological speciation in two closely related species
<p>In ecological speciation, incipient species diverge due to natural selection that is ecologically based. In flowering plants, different pollinators could mediate that selection (pollinator-mediated divergent selection) or other features of the environment that differ between habitats of two species could do so (environment-mediated divergent selection). Although these mechanisms are well understood, they have received little rigorous testing, as few studies of divergent selection across sites of closely related species include both floral traits that influence pollination and vegetative traits that influence survival. This study employed common gardens in sites of the two parental species and a hybrid site, each containing advanced generation hybrids along with the parental species, to test these forms of ecological speciation in plants of the genus <em>Ipomopsis</em>. Three vegetative traits (specific leaf area, leaf trichomes, and photosynthetic water-use efficiency) and five floral traits (corolla length and width, anther insertion, petal color, nectar production) were analyzed for impacts on fitness components (survival to flowering and seeds per flower, respectively). These traits exhibited strong clines across the elevational gradient in the hybrid zone, with narrower clines in theory reflecting stronger selection or higher genetic variance. Plants with long corollas and inserted anthers had higher seeds per flower at the <em>I. tenuituba </em>site, whereas selection favored the reverse condition at the <em>I. aggregata</em> site, a signature of divergent selection. In contrast, no divergent selection due to variation in survival was detected on any vegetative trait. Selection within the hybrid zone most closely resembled selection within the <em>I. aggregata</em> site. Across traits, the strength of divergent selection was not significantly correlated with width of the cline, which was better predicted by evolvability (standardized genetic variance). These results support the role of pollinator-mediated divergent selection in ecological speciation and illustrate the importance of genetic variance in determining divergence across hybrid zones.</p>
Patterns in bird and pollinator occupancy and richness in a mosaic of urban office parks across scales and seasons
<p>Urbanization is a leading cause of global biodiversity loss, yet cities can provide resources required by many species throughout the year. In recognition of this, cities around the world are adopting strategies to increase biodiversity. These efforts would benefit from a robust understanding of how natural and enhanced features in urbanized areas influence various taxa. We explored seasonal and spatial patterns in occupancy and taxonomic richness of birds and pollinators among office parks in Santa Clara County, California, USA, where natural features and commercial landscaping have generated variation in conditions across scales. We surveyed birds and insect pollinators, estimated multi-species occupancy and species richness, and found that spatial scale, season, and urban sensitivity were all important for understanding how communities occupied sites. Features at the landscape- and local-scale (i.e., distance to streams or baylands and tree canopy, shrub, or impervious cover, respectively) were the strongest predictors of avian occupancy in all seasons. The pollinator richness index was influenced by local tree canopy and impervious cover in spring, and distance to baylands in early and late summer. We predicted relative contributions of different spatial scales to annual bird species richness by assigning values to simulated sites representing "good" and "poor" quality, based on influential covariates returned by models. Shifting from poor to good quality conditions locally increased annual avian richness by up to 6.8 species with no predicted effect of the quality of the neighborhood. Conversely, sites of poor local- and neighborhood-scale quality in good quality landscapes were predicted to harbor 11.5 more species than sites of good local- and neighborhood-scale quality in poor quality landscapes. Finally, more urban sensitive bird species were gained at good quality sites relative to urban tolerant species, suggesting that urban natural features at the local- and landscape-scales disproportionately benefited them.</p>
COI metabarcoding data from arthropod pollinator communities in burned and unburned sites of California
<p>Novel wildfire regimes are rapidly changing global ecosystems and pose significant challenges for biodiversity conservation and ecosystem management. In this study, we used DNA metabarcoding to assess the response of arthropod pollinator communities to large-scale wildfires across diverse habitat types in California. We sampled six reserves within the University of California Natural Reserve System (UCNRS), each of which was partially burned in the 2020 Lightning Complex wildfires in California. Using yellow pan traps to target pollinators, we collected arthropods from burned and unburned sites across multiple habitat types including oak woodland, redwood, scrub, chamise, grassland, forest, and serpentine habitats. We found no significant difference in alpha diversity values between burned and unburned sites; instead, seasonal variations played a significant role in arthropod community dynamics, with the emergence of plant species in Spring promoting increased pollinator richness at all sites. When comparing all sites, we found that burn status was not a significant grouping factor. Instead, compositional differences were largely explained by geographic differences, with distinct communities within each reserve. Within a geographic area, the response of arthropods to fire was dependent on habitat type. While communities in grasslands and oak woodlands exhibited recovery following burn, scrublands experienced substantial changes in community composition. Our study highlights the importance of examining community responses to wildfires across broad spatial scales and diverse habitat types. By understanding the nuanced dynamics of arthropod communities in response to fire disturbances, we can develop effective conservation strategies that promote resilience and maintain biodiversity in the face of increasing wildfire frequency and severity driven by climate change.</p>
Data for: Effective population size mediates the impact of pollination services on pollen limitation
<p>Inadequate pollen receipt limits flowering plant reproduction worldwide. Ecological causes of pollen limitation ('PL'), like pollinator scarcity and low plant abundance, have been a primary focus of research. The genetic diversity of plant populations could impact both quantity and quality components of PL in concert with ecological factors, yet empirical examples are lacking. We evaluated joint effects of ecological factors (flower abundance, pollinator visitation) and genetic effective population size (N<sub>E</sub>) on PL across 13 populations of a common herb. We used a histological approach with 5504 styles from 1137 flowers to separate quantity and quality components of PL, and link these to reproductive output. N<sub>E</sub> and pollinator visitation interacted to shape PL, but N<sub>E</sub> had stronger direct effects. Effectively smaller populations experienced stronger quantity PL, and controlled crosses in a pollinator-free environment revealed that pollen quantity was an intrinsic population-level attribute that increased with N<sub>E</sub>. Pollinator visitation enhanced pollen quality, but only in effectively larger populations. Quantity and quality PL negatively impacted fruit and seed set, respectively.<em> </em>Results highlight that PL is dictated by plant population genetic diversity in addition to commonly evaluated ecological factors.<strong> </strong>Efforts to support pollinators will only enhance plant reproduction in genetically diverse plant populations.</p>
Data and code for: Shedding light on overlooked pollinators: Global insights into floral interactions of velvet ants (Hymenoptera: Mutillidae and Myrmosidae)
<p>Data and code used in the article "Shedding light on overlooked pollinators: Global insights into floral interactions of velvet ants (Hymenoptera: Mutillidae and Myrmosidae)".</p>
Data from: The evolution of the traplining pollinator role in hummingbirds, specialization is not an evolutionary dead end
<p>Trapliners are pollinators that visit widely dispersed flowers along circuitous foraging routes. Through coevolution with the flowers they pollinate, trapliners are hypothesised to become more morphologically and ecologically specialised than their non-traplining counterparts. We hypothesised that independent transitions to traplining in hummingbirds should entail convergent morphological specialisation, and we tested whether such transitions are irreversible and lead to lower rates of diversification as predicted by the hypothesis that specialisation is an 'evolutionary dead end'. We find that there have been multiple independent transitions to traplining across the hummingbird phylogeny, but reversals have been rare or incomplete at best. Multiple independent lineages of trapliners have become morphologically specialised, convergently evolving relatively large bills for their body size. Traplining is not an evolutionary dead end however, since trapliners continue to give rise to new traplining species at a rate comparable to non-trapliners.</p>
Data for "Disrupted connectivity within a metapopulation of a wind-pollinated declining conifer Taxus baccata L."
<p>A spreadsheet contains microsatellite genotypes and population coordinates necessary for estimating seed and pollen migration rates. In addition, a spreadsheet contains detailed individual data necessary for parentage analysis.</p> <p>For more details, see:</p> <p>Chybicki IJ, Robledo-Arnuncio JJ, Bodziarczyk J, Widlak M, Meyza, K, Oleksa A, Ulaszewski B (2024) Disrupted connectivity within a metapopulation of a wind-pollinated declining conifer, Taxus baccata L. Forest Ecosystems 100240 (https://www.sciencedirect.com/science/article/pii/S2197562024000769)</p>
The effect of experimental pollinator decline on pollinator-mediated selection on floral traits
<p>Human-mediated environmental change, by reducing mean fitness, is hypothesized to strengthen selection on traits that mediate interactions among species. For example, human-mediated declines in pollinator populations are hypothesized to reduce mean seed production by increasing the magnitude of pollen limitation and thus strengthen pollinator-mediated selection on floral traits that increase pollinator attraction or pollen transfer efficiency. To test this hypothesis, we measured two female fitness components and six floral traits of <em>Lobelia siphilitica</em> plants exposed to supplemental hand-pollination, ambient open-pollination, or reduced open-pollination treatments. The reduced treatment simulated pollinator decline, while the supplemental treatment was used to estimate pollen limitation and pollinator-mediated selection. We found that plants in the reduced pollination treatment were significantly pollen-limited, resulting in pollinator-mediated selection for taller inflorescences and more vibrant petals, both traits that could increase pollinator attraction. This contrasts with plants in the ambient pollination treatment, where reproduction was not pollen-limited and there was no significant pollinator-mediated selection on any floral trait. Our results support the hypothesis that human-mediated environmental change can strengthen the selection on traits of interacting species and suggest that these traits have the potential to evolve in response to changing environments.</p>
Maintaining habitat diversity at small scales benefits wild bees and pollination services in mountain apple orchards
<p>In 2021, we conducted our study in apple orchards in South Tyrol, an Alpine region in Italy, using pan-traps, direct observations of visitation frequency, and a pollinator exclusion experiment. We investigated the scale-dependent effects of landscape heterogeneity and other parameters on wild bee assemblages and the related pollination service they provide at five spatial scales (radius 100 – 2,000 m).</p>
Data from: emergence of structure in plant-pollinator networks: low floral resource constrains network specialisation
<p>Specialisation enhances the efficiency of plant-pollinator networks through the exchange of conspecific pollen transfer for floral resources. Floral resources form the currency of plant-pollinator interactions, but the understanding of how floral resources affect the structure of plant-pollinator networks remains modest. Previous theory predicts that optimally foraging animal species will specialise to improve resource acquisition under high resource availability. Although floral resource availability depends on both the plant production and animal consumption of the resources, previous work has assumed that production and availability to be equivalent. This potentially may have led to erroneous inferences on the effect of resource availability on specialisation. We develop a mutualistic Lotka-Volterra consumer-resource model to investigate the influence of floral resource availability on plant-pollinator network structure. The model incorporates animal adaptive foraging behaviour, floral resource dynamics, and density-dependent dynamics. Specialisation, nestedness and modularity of simulated networks generated from the model under a wide range of parameters were explained using the Generalised Linear Model. We found that the distinction between floral resource dynamics and plant density dynamics was necessary for partial specialisation of plant-pollinator networks. This is because floral resource dynamics constraint animal preference due to its depletion by animal species. Floral resource abundance had a positive effect on network specialisation, but animal density had a negative effect on network specialisation. Floral resource dynamics thus play key roles on the structure of plant-pollinator network, distinctive from plant species density dynamics.</p>
Fig. 3 in Pollination of Turnera subulata: exotic or native bees?
Fig. 3. Frequency of floral visitors during visits to Turnera subulata Sm. in October, November and December, 2018 and June, 2019 and average number of seeds at each hour interval in November and December 2018 and June 2019 within the UEFS campus, Feira de Santana, BA.
Fig. 1 in Pollination of Turnera subulata: exotic or native bees?
Fig. 1. Opening and senescence time of the flowers of Turnera subulata Sm. in October, 2018, May and June, 2019 in the UEFS campus, Feira de Santana, BA, Brazil.
High rates of nectar depletion in summer grasslands indicate competitive conditions for pollinators
<p>Competition among pollinators for floral resources is a phenomenon of both basic and applied importance. While competition is difficult to measure directly under field conditions, it can be inferred indirectly through the measurement of floral resource depletion. In this study, we conducted a pollinator exclusion experiment to calculate nectar depletion rates in summer across 16 grassland sites in the German regions of Franconia and Saxony-Anhalt. Overall depletion rates were estimated at 95% in Franconia and 79% in Saxony-Anhalt, indicating strong nectar limitation and likely competition among pollinators for nectar. Despite being ubiquitous in our study regions, honey bees were scarce at our sites at the time of nectar sampling. This demonstrates that wild pollinators alone are capable of massive nectar depletion, and the addition of managed honey bees to wild pollinator communities may intensify already competitive conditions. Nevertheless, the manifest diversity of the pollinator communities at our sites indicates that other factors, such as non-trophic constraints or temporal variation in nectar limitation, can mitigate competitive exclusion despite immediate conditions of acute nectar scarcity. </p>
Beyond the various contrivances by which orchids are pollinated: global patterns in orchid pollination biology
<p>Global database of Orchidaceae to explore the frequency of different breeding systems, means of pollinator attraction, and pollinator diversity, and how these features vary geographically and by growth habit.</p> <p>Two files: </p> <p>Pollination List Literature Cited thru 2024 (word file)</p> <p>Pollination List thru 2024 (excel file)</p>
Data from: Evolution of dispersal, habit, and pollination in Africa pushed Apocynaceae diversification after the Eocene-Oligocene climate transition
<p>Apocynaceae (the dogbane and milkweed family) is one of the ten largest flowering plant families, with approximately 5,350 species and diverse morphology and ecology, ranging from large trees and lianas that are emblematic of tropical rainforests, to herbs in temperate grasslands, to succulents in dry, open landscapes, and to vines in a wide variety of habitats. Despite a specialized and conservative basic floral architecture, Apocynaceae are hyperdiverse in flower size, corolla shape, and especially derived floral morphological features. These are mainly associated with the development of corolline and/or staminal coronas and a spectrum of integration of floral structures culminating with the formation of a gynostegium and pollinaria—specialized pollen dispersal units. To date, no detailed analysis has been conducted to estimate the origin and diversification of this lineage in space and time. Here, we use the most comprehensive time-calibrated phylogeny of Apocynaceae, which includes approximately 20% of the species covering all major lineages, and information on species number and distributions obtained from the most up-to-date monograph of the family to investigate the biogeographical history of the lineage and its diversification dynamics. South America, Africa, and Southeast Asia (potentially including Oceania), were recovered as the most likely ancestral area of extant Apocynaceae diversity; this tropical climatic belt in the equatorial region retained the oldest extant lineages and these three tropical regions likely represent museums of the family. Africa was confirmed as the cradle of pollinia-bearing lineages and the main source of Apocynaceae intercontinental dispersals. We detected 12 shifts toward accelerated species diversification, of which 11 were in the APSA clade (apocynoids, Periplocoideae, Secamonoideae, and Asclepiadoideae), eight of these in the pollinia-bearing lineages and six within Asclepiadoideae. Wind-dispersed comose seeds, climbing growth form, and pollinia appeared sequentially within the APSA clade and probably work synergistically in the occupation of drier and cooler habitats. Overall, we hypothesize that temporal patterns in diversification of Apocynaceae was mainly shaped by a sequence of morphological innovations that conferred higher capacity to disperse and establish in seasonal, unstable, and open habitats, which have expanded since the Eocene-Oligocene climate transition.</p>
Geographical variation of floral scents in generalist entomophilous species with variable pollinator communities
<p>This is the dataset used for the article: "<strong>Geographical variation of floral scents in generalist entomophilous species with variable pollinator communities</strong>" by de Manincor N. et al., 2021 published in Functional Ecology (https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2435.13984)</p> <p>In this study we investigated the floral scent (Volatile Organic Compounds, VOCs) variation of four perennial plant species, with generalist pollination, in two different environments: under natural condition (field) and controlled condition (greenhouse). The focal plant species are: <em>Anthyllis vulneraria</em> (AV), <em>Globularia vulgaris</em> (GV), <em>Pilosella officinarum</em> (PO) and <em>Ranunculus bulbosus</em> (RB).</p> <p>The dataset is composed by different files that have been used to investigate (1) variation of VOCs under natural condition (files "<strong>field</strong>"), (2) variation of VOCs under controlled condition (files "<strong>greenhouse</strong>"), (3) the effect of the reared condition and the role of phenotypic plasticity (field vs greenhouse, files "<strong>FvsGH</strong>") and (4) variation of the pollinator community associated with the four focal species (files "<strong>poll_</strong>" and (5) whether changes in floral scents in the field were associated to some variation in the pollinator communities (at the species level, using an RDA analysis, files "<strong>Pollinators-2017</strong>", "<strong>VOC-2017</strong>").</p> <p>We also provided two scripts: the script with an example to calculate VOCs variation, and the script for the RDA analysis.</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.