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.
87
datasets available to search
ShareScore release 0.9.0
Dataset results
87 results for “Heliconia”
Heliconia invertebrate counts
Identification and number of invertebrates recovered from each Heliconia inflorescence sampled. Support for this work was provided by grants BSR-8811902, DEB-9411973, DEB-9705814 , DEB-0080538, DEB-0218039 , DEB-0620910 , DEB-1239764, DEB-1546686, and DEB-1831952 from the National Science Foundation to the University of Puerto Rico as part of the Luquillo Long-Term Ecological Research Program. Additional support provided by the University of Puerto Rico and the International Institute of Tropical Forestry, USDA Forest Service.
Heliconia collection data
Mineral concentrations of Heliconia bract fluid and organic matter accumulated in the bracts. Data collected during a study of the invertebrates in Heliconia bract fluid. Support for this work was provided by grants BSR-8811902, DEB-9411973, DEB-9705814 , DEB-0080538, DEB-0218039 , DEB-0620910 , DEB-1239764, DEB-1546686, and DEB-1831952 from the National Science Foundation to the University of Puerto Rico as part of the Luquillo Long-Term Ecological Research Program. Additional support provided by the University of Puerto Rico and the International Institute of Tropical Forestry, USDA Forest Service.
Heliconia fluid and organic matter analyses
Mineral concentrations of Heliconia bract fluid and organic matter accumulated in the bracts. Data collected during a study of the invertebrates in Heliconia bract fluid. Support for this work was provided by grants BSR-8811902, DEB-9411973, DEB-9705814 , DEB-0080538, DEB-0218039 , DEB-0620910 , DEB-1239764, DEB-1546686, and DEB-1831952 from the National Science Foundation to the University of Puerto Rico as part of the Luquillo Long-Term Ecological Research Program. Additional support provided by the University of Puerto Rico and the International Institute of Tropical Forestry, USDA Forest Service.
Figure. Cross-sections of ovaries of Heliconia psittacorum (A,B) and Musa velutina (C,D). Polyethylene glycol–embedded ovaries are on the left (A,C). Paraffin-embedded ovaries are on the right (B,D). Scale bars: 1 mm. Images obtained by Anastasia Romanov (A and C) and Bruce Kirchoff (B and D). in USE OF POLYETHYLENE GLYCOL (PEG, CARBOWAX) AS AN EMBEDDING MEDIUM PRODUCES RESULTS COMPARABLE TO PARAFFIN
Figure. Cross-sections of ovaries of Heliconia psittacorum (A,B) and Musa velutina (C,D). Polyethylene glycol–embedded ovaries are on the left (A,C). Paraffin-embedded ovaries are on the right (B,D). Scale bars: 1 mm. Images obtained by Anastasia Romanov (A and C) and Bruce Kirchoff (B and D).
Fig. 1 in Interaction and distribution of beetles (Insecta: Coleoptera) associated with Heliconia bihai (Heliconiaceae) inflorescences
Fig. 1. Ordination diagram produced by canonical correspondence analysis for the samples of Heliconia bihai inflorescences collected in the (A) cultivated and (B) uncultivated area. The species are represented by triangles with the abbreviations of their scientific names, and the environmental variables are represented by vectors. Pel = Pelosoma lafertei; Tac = Tachyporus sp.; Pae = Paederomimus sp.; Elm = Elmidae sp.
Demography of the understory herb Heliconia acuminata (Heliconiaceae) in an experimentally fragmented tropical landscape
<p>Habitat fragmentation remains a major focus of research by ecologists decades after being put forward as a threat to the integrity of ecosystems. While studies have documented myriad biotic changes in fragmented landscapes, including the local extinction of species from fragments, the demographic mechanisms underlying these extinctions are rarely known. However, many of them – especially in lowland tropical forests – are thought to be driven by one of two mechanisms: (1) reduced recruitment in fragments resulting from changes in the diversity or abundance of pollinators and seed dispersers or (2) increased rates of individual mortality in fragments due to dramatically altered abiotic conditions, especially near fragment edges. Unfortunately, there have been few tests of these potential mechanisms due to the paucity of long-term and comprehensive demographic data collected in both forest fragments and continuous forest sites. Here we report 11 years (1998-2009) of demographic data from populations of the Amazonian understory herb Heliconia acuminata (LC Rich.) found at Brazil's Biological Dynamics of Forest Fragments Project (BDFFP). The resulting data set comprises >66000 plant×year records of 8586 plants, including 3464 seedlings that became established after the initial census. Seven populations were in experimentally isolated fragments (one in each of four 1-ha fragments and one in each of three 10-ha fragments), with the remaining six populations in continuous forest. Each population was in a 50×100m permanent plot, with the distance between plots ranging from 500 m-60 km. The plants in each plot were censused annually, at which time we recorded, identified, marked, and measured new seedlings, identified any previously marked plants that died, and recorded the size of surviving individuals. Each plot was also surveyed 4-5 times during the flowering season to identify reproductive plants and record the number of inflorescences each produced. These data have been used to investigate topics ranging from the way fragmentation-related reductions in germination influence population dynamics to statistical methods for analyzing reproductive rates. This breadth of prior use reflects the value of these data to future researchers. In addition to analyses of plant responses to habitat fragmentation, these data can be used to address fundamental questions in plant demography, the evolutionary ecology of tropical plants, and for developing and testing demographic models and tools. Though we welcome opportunities to collaborate with interested users, there are no restrictions on the use this data set. However, we do request that those using the data for teaching or research inform us of how they are doing so and cite this paper and the data archive when appropriate. Any publication using the data must also include a BDFFP Technical Series Number in the Acknowledgments. Authors can request this series number upon the acceptance of their article by contacting the BDFFP's Scientific Coordinator or E. M. Bruna.</p>
Demography of the understory herb Heliconia acuminata (Heliconiaceae) in an experimentally fragmented tropical landscape
Open the record for dataset details and reuse information.
Heliconia cf. tenebrosa J.F. Macbr. from Colombia collected by E. Álvarez, A. Camargo, F. Toro #3935
<p><strong>File Name</strong>: <span>TOLI-23747-ZAR-05-Sot-Reb-EAD-3935.jpg</span></p> <p><strong>CÓDIGO FOTO</strong>: <span>TOLI-23747-ZAR-05-Sot-Reb-EAD-3935-</span></p> <p><strong>Fotografía</strong>: <span>SI</span></p> <p><strong>Nº TOLI</strong>: <span>TOLI-23747</span></p> <p><strong>PARCELA</strong>: <span>ZAR-05</span></p> <p><strong>CÓDIGO</strong>: <span>Sot-Reb-EAD-3935</span></p> <p><strong>Nº COLECTA</strong>: <span>3935</span></p> <p><strong>NUEVOS COLECTORES</strong>: <span>Alejandro Camargo, Felipe Toro & Esteban Alvarez</span></p> <p><strong>COLECTORES</strong>: <span>E. Álvarez, A. Camargo, F. Toro</span></p> <p><strong>Nº MUESTRAS MONTADAS</strong>: <span>1</span></p> <p><strong>Homologación</strong>: <span>No homologado</span></p> <p><strong>Nueva fecha del evento </strong>: <span>30/11/2018.</span></p> <p><strong>Fecha del evento</strong>: <span>15/10/2006.</span></p> <p><strong>Proyecto </strong>: <span>Recursos Botánicos Disponibles en Línea (BRAVO) para la flora Colombiana</span></p> <p><strong>Hábitat</strong>: <span>Bosque húmedo tropical (bh-T)</span></p> <p><strong>Comentario del evento</strong>: <span>Bosque de tierra firme</span></p> <p><strong>Continente</strong>: <span>SA</span></p> <p><strong>Pais</strong>: <span>Colombia</span></p> <p><strong>Estado/Provincia</strong>: <span>Amazonas</span></p> <p><strong>Municipio</strong>: <span>Leticia</span></p> <p><strong>Localidad</strong>: <span>Resguardo Indígena Ticuna-Huitoto Km 6-11.</span></p> <p><strong>Elevación minima en metros</strong>: <span>200</span></p> <p><strong>Elevación maxima en metros</strong>: <span>300</span></p> <p><strong>Latitud</strong>: <span>-4.004</span></p> <p><strong>Longitud original</strong>: <span>-69.896</span></p> <p><strong>datum geodésico</strong>: <span>WGS 84</span></p> <p><strong>Latitud decimal</strong>: <span>-4.004</span></p> <p><strong>Longitud decimal</strong>: <span>-69.896</span></p> <p><strong>Identificado por</strong>: <span>Diego Suescún</span></p> <p><strong>Fecha de identificación</strong>: <span>15/02/2019.</span></p> <p><strong>Nombre cientifico</strong>: <span>Heliconia cf. tenebrosa J.F. Macbr. </span></p> <p><strong>Reino</strong>: <span>Plantae</span></p> <p><strong>Filo</strong>: <span>Magnoliophyta</span></p> <p><strong>Clase</strong>: <span>Equisetopsida</span></p> <p><strong>Orden</strong>: <span>Zingiberales</span></p> <p><strong>Familia nueva</strong>: <span>Heliconiaceae</span></p> <p><strong>Género nuevo</strong>: <span>Heliconia</span></p> <p><strong>especie nueva</strong>: <span>tenebrosa </span></p> <p><strong>Autoría del nombre científico</strong>: <span>J.F. Macbr</span></p> <p><strong></strong>: <span>Heliconiaceae</span></p> <p><strong>genero herbario</strong>: <span>Heliconia</span></p> <p><strong>especie herbario</strong>: <span>tenebrosa</span></p> <p><strong>Especie de herbario para TNRS</strong>: <span>Heliconia tenebrosa</span></p> <p><strong>Especie corregida herbario y desde TNRS</strong>: <span>Heliconia tenebrosa</span></p> <p><strong>Familia corregida desde TNRS</strong>: <span>Heliconiaceae</span></p> <p><strong></strong>: <span>2835</span></p>
Data from: Floral isolation and pollination in two hummingbird-pollinated heliconias data
Differences in feeding performance and aggressive abilities between species and sexes of hummingbirds are often associated with the partitioning of their food sources, but whether such partitioning results in floral isolation (reproductive isolation at the stage of pollination) has received little attention. We examined components of floral isolation and pollinator effectiveness of Heliconia caribaea and H. bihai on the island of Dominica, West Indies. The short flowers of H. caribaea match the short bills of male Anthracothorax jugularis, its primary pollinator, whereas the long flowers of H. bihai match the long bills of female A. jugularis, its primary pollinator. In pollination experiments, both sexes of A. jugularis were equally effective at pollinating the short flowers of H. caribaea, which they preferred to H. bihai, whereas females were more effective at pollinating the long flowers of H. bihai. Moreover, an average difference in length of 12 mm between H. caribaea and H. bihai flowers did not prevent heterospecific pollen transfer, and both sexes transported pollen between the two plant species. In field studies using powdered dyes as pollen analogs, however, heterospecific pollen transfer was minimal, with only 2 of 168 flowers receiving dye from the other species. The length of H. bihai flowers acted as an exploitation barrier to male A. jugularis, which were unable to completely remove nectar from 88% of the flowers they visited. In contrast, interference competition combined with high floral fidelity through traplining prevented female A. jugularis from transferring pollen between the two Heliconia species. A combination of exploitation barriers, interference and exploitative competition, and pollinator preferences maintains floral isolation between these heliconias, and may have contributed to the evolution of this hummingbird-plant system.
Data for: Elevated inbreeding in Heliconia tortuosa is determined by tropical forest stand age, isolation, and loss of hummingbird functional diversity
<p>Forest conversion and habitat loss are major threats to biological diversity. Forest regeneration can mitigate the negative effects of old growth forest loss on species diversity, but less is known about the extent to which forest loss reduces genetic diversity in remnant populations and whether secondary forests play a role in the maintenance of genetic diversity. We quantified genetic diversity in a tropical hummingbird-pollinated understory herb, <em>Heliconia tortuosa</em>, across a landscape mosaic of primary and secondary forest regrowth. Using microsatellite genotypes from >850 adult and juvenile plants within 33 forest patches and extensive bird surveys, we examined the effect of contemporary and historical landscape features including forest age (primary vs. secondary forest), stand isolation, and pollinator assemblages on genetic diversity and levels of inbreeding in <em>H. tortuosa</em>. We found that inbreeding was up to 3x higher in secondary forest, and this effect was amplified with reductions in primary forest in the surrounding landscape through reduced observed heterozygosity in isolated fragments. Inbreeding in forest patches was negatively correlated with the local frequency of specialist long-distance foraging traplining hummingbirds. Traplining hummingbirds therefore appear to facilitate mating among unrelated plants - an inference we tested using empirically parameterized simulations. Higher levels of inbreeding in <em>H. tortuosa</em> are therefore associated with reduced functional diversity of hummingbirds in secondary forests and forest patches isolated from primary forests. Our findings suggest a cryptic consequence of primary forest loss and secondary forest regeneration through the disruption of mutualistic interactions resulting in the erosion of genetic diversity in a common understory plant.</p>
Heliconia-dwelling invertebrate abundances following a simulated hurricane disturbance
<p>Disturbances like hurricanes can affect diversity and community composition, which may in turn affect ecosystem function. We examined how a simulated hurricane disturbance affected insect communities inhabiting the phytotelma (plant-held waters) of <em>Heliconia</em> <em>caribaea</em> in the Luquillo Experimental Forest of eastern Puerto Rico, a tropical island that frequently experiences hurricanes. We hypothesized that disturbance would alter diversity and that larger Heliconia would attract more species following disturbance due to the area-diversity relationship described by the Theory of Island Biogeography. Individual flower parts (bracts) of <em>Heliconia</em> inflorescences (racemes) were artificially disturbed via removal of existing insect communities, then after refilling with water, cohorts of <em>Heliconia</em> were destructively sampled biweekly for six weeks to assess recolonization patterns of α (bract level), β, and γ (summed across bracts; raceme level) diversity over time and across raceme sizes. Although we found no support for our hypothesis about the effect of raceme size on recolonization, our hypothesis regarding recolonization patterns over time was supported; species richness, evenness, and abundance of bracts increased directly after the disturbance and then decreased below pre-disturbance levels, and community composition at the raceme level changed significantly over time during recolonization. β diversity was also greater in smaller racemes compared to larger racemes, suggesting high heterogeneity across bracts of <em>Heliconia</em> racemes exacerbated by raceme size and age. Overall, our results highlight the importance of scale and appropriate measurements of diversity (particularly α) in experiments aiming to extrapolate conclusions about the ecological impacts of disturbances across different habitats and ecosystems.</p>
Data from: Floral isolation and pollination in two hummingbird-pollinated heliconias data
Open the record for dataset details and reuse information.
Heliconia-dwelling invertebrate abundances following a simulated hurricane disturbance
Open the record for dataset details and reuse information.
Data from: The landscape genetic signature of pollination by trapliners: evidence from the tropical herb, Heliconia tortuosa
Open the record for dataset details and reuse information.
Data for: Elevated inbreeding in Heliconia tortuosa is determined by tropical forest stand age, isolation, and loss of hummingbird functional diversity
Open the record for dataset details and reuse information.
Data from: Florivory and floral larceny by fly larvae decrease nectar availability and hummingbird foraging visits at Heliconia (Heliconiaceae) flowers
Insect larvae inhabit the corolla tubes of some Heliconia species (Heliconiaceae). In this study, we present the first evidence of the influence of these larvae on the pollination ecology of Heliconia plants. We provide experimental evidence that the flowers of Heliconia spathocircinata infested by flies have less nectar for pollinators and received fewer visits by hummingbird pollinators, in comparison with uninfested flowers.
FIGURE 5. Catahrinus granatus n in New eriophyoid mites (Acari: Prostigmata: Eriophyoidea) from banana and heliconia in Northeastern Brazil—two new genera and three new species
FIGURE 5. Catahrinus granatus n. sp. CGM. Coxigenital region, male; D. Dorsal habitus, female; em. Empodium, leg I, female; P. Palp; LM. Lateral habitus, female; LO. Lateral opisthosomal view of anterior section of mite, female; L1. Leg I, female; L2. leg II, female; V. ventral habitus, female.
FIGURE 4. Rhyncadicrus asperulus n. gen., n in New eriophyoid mites (Acari: Prostigmata: Eriophyoidea) from banana and heliconia in Northeastern Brazil—two new genera and three new species
FIGURE 4. Rhyncadicrus asperulus n. gen., n. sp. A. Dorsal habitus, female; B. Ventral habitus, female; C. Lateral habitus, female; D. Prodorsal shield with frontal lobe deeply emarginate, female; E. Epigynum; F. Internal genitalia, female; G. Genitalia, male; H. Palps, female; I. Detail of palp tarsus with distal setae; J, K. Legs I and leg II, female.
FIGURE 3. Rhyncadicrus asperulus n. gen., n in New eriophyoid mites (Acari: Prostigmata: Eriophyoidea) from banana and heliconia in Northeastern Brazil—two new genera and three new species
FIGURE 3. Rhyncadicrus asperulus n. gen., n. sp. CGM. Coxigenital region, male; D. Dorsal habitus, female; em. Empodium, leg I, female; P. Palp; PT. Details of the palp tarsus setae; IG. Internal genital structures, female; LM. Lateral habitus, female LO. Lateral opisthosomal view of anterior section of mite; female; L1. Leg I, female; L2. Leg II, female; V. Ven t ral habitus, female.
FIGURE 6. Catarhinus granatus n in New eriophyoid mites (Acari: Prostigmata: Eriophyoidea) from banana and heliconia in Northeastern Brazil—two new genera and three new species
FIGURE 6. Catarhinus granatus n. sp. A. Dorsal habitus, male; B. Ventral habitus, male; C. Epigynum; D. Genitalia, male; E. Detail of palp with apical seta hook-shaped, female; F. Prodorsal shield; G. Lateral aspect of prodorsal shield; H. Lateral aspect of opisthosoma, female; I. Dorsal view of legs I and leg II, female; J. Ventral view of legs I and leg II, female; K. Detail of leg I with empodium and solenidion (ω), female.
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.