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.
123
datasets available to search
ShareScore release 0.7.1
Dataset results
123 results for “woody species”
Data from: Seasonal acclimation of photosynthetic thermal tolerances in six woody tropical species along a thermal gradient
Open the record for dataset details and reuse information.
Data from: Spotting the pests of tomorrow - Sampling designs for detection of species associations with woody plants
Aim: Early warning against potentially harmful organisms of woody plant species can be achieved by sampling sentinel plants in exporting countries. However, it is unclear where sentinel plants can best be located, and how many samples are required and when and how often sampling optimally should take place for the adequate assessment of the biodiversity associated with the target plant species. We aimed to review spatial and temporal factors affecting associate biodiversity of single woody plant species and to develop guidance for the design of global biodiversity sampling studies. Location: Worldwide. Taxon: Insects and Fungi. Methods: Literature about factors affecting the diversity of insects and fungi in association with single plant species on global, regional, local and different temporal scales was reviewed. Case studies of insect and fungal diversity, primarily collected on single plant species, and the cost of collecting and analysing samples from locations around the world were analysed. Results: The review of the literature illustrated various factors affecting diversity, and the case studies allowed quantification of the relative impact of some spatial, temporal and financial aspects on captured biodiversity and, thus, illustrate the need to consider all possible factors that may affect the result of the sampling when deciding on a sampling design. Main conclusions: Our study illustrates the factors that should be considered when deciding on the location and timing of sampling for sentinel plants, which is important because of the trade-off between the number of samples and sampling locations needed to detect many of the species which may be potential pests, and the cost of (repeated) sampling in many locations. Decisions about the sampling design must be based on the objective of the sampling, but our recommendations apply irrespective of the targeted plant species or country.
Data from: What makes a leaf tough? Patterns of correlated evolution between leaf toughness traits and demographic rates among 197 shade-tolerant woody species in a neotropical forest
Slow-growing juveniles of shade-tolerant plant species are predicted to have tough leaves because of the high cost of leaf replacement in shade relative to potential carbon gain. We assessed the degree of correlated evolution among eight traits associated with leaf toughness and their relationships with growth and mortality rates of 197 tree and shrub species from the understory of the 50-hectare forest dynamics plot on Barro Colorado Island, Panama. Path analysis with phylogenetically independent contrasts revealed that leaves attained material toughness (resistance to fracture per unit fracture area) through increases in tissue density, percent cellulose per unit dry mass, and vein fracture toughness. Lamina density and cellulose content evolved independently, and thus represent different paths to material toughness. Structural toughness (resistance to fracture per unit fracture length) depended on material toughness and lamina thickness. Mortality rates of individuals 1-10 cm in stem diameter were negatively correlated with material toughness and lamina density, but were independent of structural toughness and cell wall fiber contents. Leaf toughness traits were uncorrelated with relative growth rates. These results imply that material toughness enhances resistance to natural enemies, which increases survival and offsets the biomass allocation cost of producing tough leaves in the shaded understory.
Data from: Effect of plant root symbionts on performance of native woody species in competition with an invasive grass in multispecies microcosms
The majority of terrestrial plants form mutualistic associations with arbuscular mycorrhizal fungi (AMF) and rhizobia (i.e. nitrogen fixing bacteria). Understanding these associations has important implications for ecological theory and for restoration practice. Here we tested whether the presence of AMF and rhizobia influence the performance of native woody plants invaded by a non-native grass in experimental microcosms. We planted eight plant species (i.e. Acacia acuminata, A. microbotrya, Eucalyptus loxophleba subsp. loxophleba, E. astringens, Calothamnus quadrifidus, Callistemon phoeniceus, Hakea lissocarpha and H. prostrata) in microcosms of field-conditioned soil with and without addition of AMF and rhizobia in a fully factorial experimental design. After seedling establishment, we seeded half the microcosms with an invasive grass Bromus diandrus. We measured shoot and root biomass of native plants and Bromus, and on roots, the percentage colonization by AMF, number of rhizobia-forming nodules and number of proteaceous root clusters. We found no effect of plant root symbionts or Bromus addition on performance of myrtaceous, and as predicted, proteaceous species as they rely little or not at all on AMF and rhiozbia. Soil treatments with AMF and rhiozbia had a strong positive effect (i.e. larger biomass) on native legumes (A. microbotrya and A. acuminata). However, the beneficial effect of root symbionts on legumes became negative (i.e. lower biomass and less nodules) if Bromus was present, especially for one legume, i.e. A. acuminata, suggesting a disruptive effect of the invader on the mutualism. We also found a stimulating effect of Bromus on root nodule production in A. microbotrya and AMF colonization in A. acuminata which could be indicative of legumes' increased resource acquisition requirement, i.e. for nitrogen and phosphorus, respectively, in response to the Bromus addition. We have demonstrated the importance of measuring belowground effects because the aboveground effects gave limited indication of the effects occuring belowground.
Data from: Fire-sensitive species dominate seed rain in a long unburned Cerrado: implications for plant community diversity and woody encroachment in savannas
Woody encroachment is becoming common in tropical savannas. Seed rain data and seed addition experiments in a long unburned Brazilian savanna indicate that abundant seed rain of fire-sensitive species can surpass limitations to recruitment and lead to woody encroachment. Thus, active fire management may be required to maintain savanna diversity.
Data from: Conservation of old individual trees and small populations is integral to maintain species' genetic diversity of a historically fragmented woody perennial
Historically fragmented and specialised habitats such as granite outcrops are understudied globally unique hotspots of plant evolution. In contrast to predictions based on mainstream population genetics theory, some granite outcrop plants appear to have persisted as very small populations despite prolonged geographic and genetic isolation. Eucalyptus caesia Benth. is a long-lived lignotuberous tree endemic with a naturally fragmented distribution on granite outcrops in south-western Australia. To quantify population to landscape level genetic structure we employed microsatellite genotyping at 14 loci of all plants in 18 stands of E. caesia. Sampled stands were characterised by low levels of genetic diversity, small absolute population sizes, localised clonality and strong fine-scale genetic sub-division. There was no significant relationship between population size and levels of heterozygosity. At the landscape scale, high levels of population genetic differentiation were most pronounced among representatives of the two subspecies in E. caesia as originally circumscribed. Past genetic interconnection was evident between some geographical neighbours separated by up to 20 kilometres. Paradoxically, other pairs of neighbouring stands as little as 7 kilometres apart were genetically distinct. There was no consistent pattern of isolation by distance across the 280 km range of E. caesia. Low levels of gene flow, together with strong drift within stands, provides some explanation of the patterns of genetic differentiation we observed. Individual genet longevity via the ability to repeatedly re-sprout and expand from a lignotuber may enhance the persistence of some woody perennial endemic plants despite small population size, minimal genetic interconnection and low heterozygosity.
Aedes (Stg.) subargenteus — A, thorax (dorsal view); Aedes (Stg.) strelitziae — B, thorax (dorsal view); Aedes (Stg.) woodi — C, thorax (dorsal view); Aedes (Stg.) simpsoni — D, female tarsal claws (fore and midlegs); Aedes (Stg.) lilii — E, female tarsal claws (fore and midlegs); Aedes (Stg.) bromeliae — F, female tarsal claws (fore and midlegs). in The subgenus Stegomyia of Aedes in the Afrotropical Region with keys to the species (Diptera: Culicidae)
Aedes (Stg.) subargenteus — A, thorax (dorsal view); Aedes (Stg.) strelitziae — B, thorax (dorsal view); Aedes (Stg.) woodi — C, thorax (dorsal view); Aedes (Stg.) simpsoni — D, female tarsal claws (fore and midlegs); Aedes (Stg.) lilii — E, female tarsal claws (fore and midlegs); Aedes (Stg.) bromeliae — F, female tarsal claws (fore and midlegs).
Data from: Regeneration processes on coarse woody debris in mixed forests: do tree germinants and seedlings have species-specific responses when grown on coarse woody debris?
Tree regeneration on coarse woody debris (CWD) is considered to be one the most ecologically valuable aspects of CWD in forest systems. However, most studies have focused solely on uncovering the differences in establishment and growth on CWD (regarded as a homogeneous substrate) in comparison with the forest floor. Our study concentrates on the underlying mechanisms of germinant and seedling colonization patterns and demographic responses relative to various properties of CWD. We analysed the effects of CWD properties (decay class, form, species and diameter) on: (i) germinant and seedling annual counts; (ii) annual germinant and seedling survival; and (iii) seedling growth and height. Our study comprised three species (beech, fir and spruce) over 7-year span in two old-growth stands in the Western Carpathians, and employed generalized linear models and mixed models to test for differences between species. CWD properties affected regeneration at the germination stage. There were some demographic differences between species relative to CWD properties. Decay class had the most pronounced effect on beech, not only on its establishment but also survival and growth. Beech and spruce established and survived in higher densities on beech CWD, while their height growth was enhanced on conifer-derived CWD, particularly on spruce CWD. Stumps enhanced establishment of all species and survival of conifer seedlings. Synthesis. Our study shows that CWD properties do influence seedling establishment, growth, height distribution and survival. Moreover, there may be trade-offs between seedling growth and survival among tree species growing on different species of CWD. This highlights the need to include CWD heterogeneity as a factor that can affect the role of CWD in regeneration in forest ecosystems.
FIGURES 1–5 in Woody plant communities of southern South Africa and new distribution records for the rare dung beetle species Sarophorus punctatus Frolov & Scholtz, 2003 (Coleoptera: Scarabaeidae: Scarabaeinae)
FIGURES 1–5. Sarophorus punctatus Frolov & Scholtz, 2003 (TMSA). 1, male, dorsal view; 2, female, dorsal view; 3, aedeagus, dorsal and lateral views; 4, specimen labels; 5, distribution of S. punctatus (yellow circles; circle with black point indicates type locality - "Keurboomstrand").
Data for: Phenotypic variation of hydraulic traits for woody species
<p>Hydraulic traits are major determinants of plant fitness, thus exerting control over vegetation structure, function and distribution. Yet it remains unclear whether and how hydraulic traits respond to environmental stimuli (i.e., phenotypic variation of hydraulic traits; PVHT), and if the coordination between different hydraulic traits and the trait-climate relationship are affected by PVHT.</p> <p>Here, we synthesized data of PVHT (maximum hydraulic conductivity and water potential inducing 50% loss of hydraulic conductivity) as well as potentially related morphological and anatomical traits (e.g. sapwood density, branch Huber value, mean and hydraulic weighted conduit diameter). We analyzed the magnitude, direction and source of variation of the plastic response, as well as the influence of environmental factors on trait coordination. Additionally, we compared the intra- and inter- specific variation between key hydraulic traits and climate metrics (mean annual precipitation and mean annual temperature) at the site of growth, as well as across the population range.</p> <p>PVHT was highly variable in both magnitude and direction, which was contingent on the environmental factor. The variation in PVHT mainly occurred at high taxonomic levels (i.e., family and genus), whereas phenology explained little variation for PVHT. Despite the high variability, trait correlation remained robust in the presence of environmental stimuli. Moreover, trait-climate relationships differed at inter-specific and intra-specific levels. The intra-specific variation of hydraulic traits in most species showed no correlation with climate metrics compared with the high correlation of hydraulic traits with climate metrics across species.</p> <p>Our findings suggest that the high variability of PVHT does not affect the trait correlation which may be valuable in predicting vegetation dynamics under varying environments. The distinct trait-climate relationships highlight the need to unravel the driving force of PVHT, as well as the adaptive strategy across populations.</p>
FIGURE 2. Imparipes woodi Mahunka, 1974 in New species and a new record of the mite family Scutacaridae (Acari: Heterostigmata) from alpine New Zealand
FIGURE 2. Imparipes woodi Mahunka, 1974, female: A—gnathosoma in dorsal view, B—gnathosoma and pharyngeal pumps in ventral view, C—prodorsal setae.
FIGURE 1. Imparipes woodi Mahunka, 1974 in New species and a new record of the mite family Scutacaridae (Acari: Heterostigmata) from alpine New Zealand
FIGURE 1. Imparipes woodi Mahunka, 1974, female: A—dorsum of the body, B—venter of the body. Legs omitted.
FIGURE 4. Imparipes woodi Mahunka, 1974 in New species and a new record of the mite family Scutacaridae (Acari: Heterostigmata) from alpine New Zealand
FIGURE 4. Imparipes woodi Mahunka, 1974, female: A—right leg III in dorsal view, B—right leg IV in dorsal view.
FIGURE 3. Imparipes woodi Mahunka, 1974 in New species and a new record of the mite family Scutacaridae (Acari: Heterostigmata) from alpine New Zealand
FIGURE 3. Imparipes woodi Mahunka, 1974, female: A—right leg I in dorsal view, B—right leg II in dorsal view.
FIGURE 9. Cultived woody bamboos. A–B. Bambusa vulgaris var. vittata, yellow culms with green stripes. B. Guadua angustifolia culms. C in Morphological keys to the genera and species of bamboos (Poaceae: Bambusoideae) of Mexico
FIGURE 9. Cultived woody bamboos. A–B. Bambusa vulgaris var. vittata, yellow culms with green stripes. B. Guadua angustifolia culms. C. Phyllostachys aurea, showing ventricose basal nodes.. D. Phyllostachys bambusoides, diffuse culms. E. Bambusa oldhamii, showing glaucous culms and culm leaves. Photos by E. Ruiz-Sanchez.
FIGURE 2. Amburana acreana. A in A Taxonomic Review And A New Species Of The South American Woody Genus Amburana (Leguminosae, Papilionoideae)
FIGURE 2. Amburana acreana. A. Branch with leaves; B. Inflorescence; C. Leaflet (adaxial face); D. Detail of midvein in C; E–F. Bracteole (abaxial and adaxial face, respectively); G. Flower bud; H. Flower in side view; J. Flower (with the petal removed) in side view showing the stamens and carpel; K. Standard (adaxial face); L. Longitudinal section of flower showing hypanthium and stamen insertion; M. Fruits; N. Winged seed (A from L. F. G. da Silva et al. 59, B–L from S. Romaniuc Neto et al. 687, M–N from T. D. Pennington et al. 16994). Drawn by Ana L. Souza.
FIGURE 5. Amburana erythrosperma. A in A Taxonomic Review And A New Species Of The South American Woody Genus Amburana (Leguminosae, Papilionoideae)
FIGURE 5. Amburana erythrosperma. A. Flowers and flower buds; B. Fruits; C. Fruit and seeds (Photos: G. P. Lewis).
FIGURE 3. Amburana cearensis. A in A Taxonomic Review And A New Species Of The South American Woody Genus Amburana (Leguminosae, Papilionoideae)
FIGURE 3. Amburana cearensis. A. Fruits and seeds; B. Flowers and flower buds (Photos: E. P. Seleme).
FIGURE 4. Amburana cearensis. A in A Taxonomic Review And A New Species Of The South American Woody Genus Amburana (Leguminosae, Papilionoideae)
FIGURE 4. Amburana cearensis. A. Branch with leaves and inflorescence; B. Part inflorescence in bud; C. Leaflet (adaxial face); D. Detail of C; E. Standard (adaxial face); F. Anther; G. Stamens; H. Calyx and hypanthium; J. Flower, side view; K. Bracteole; L. Flower bud; M. Style and stigma; N. Gynoecium; P. Longitudinal section of flower showing hypanthium; Q. Winged seed; R. Fruit (A–N from J. R. I. Wood et al. 19592, P–R from J. R. I. Wood 10671). Drawn by Angela J. Beaumont.
FIGURE 7 in A Taxonomic Review And A New Species Of The South American Woody Genus Amburana (Leguminosae, Papilionoideae)
FIGURE 7. Geographical distribution of Amburana acreana (■), A. cearensis (●) and A. erythrosperma (▲). Map created using Diva GIS.
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.