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.
19,324
datasets available to search
ShareScore release 0.9.0
Dataset results
19,324 results for “western”
Peat depth and occurrence in areas covered by airborne radiometric surveys, southeastern and western Norway, 1983-2023.
This data package contains point measurements of peat depth and occurrence from two study sites in Norway: Skrimfjella, located in eastern Norway, and Ørskogfjellet, located in western Norway. These sites represent contrasting physical geographies, with diverse bedrock and landscape types, including inland hills and mountains, coastal plains, and inland valleys. The data were collected primarily during field campaigns in August 2020 (Skrimfjella) and August 2023 (Ørskogfjellet). The data package also contains peat depth measurements from beyond these primary field campaigns. These ancillary data were provided by the Norwegian Public Roads Administration and the Norwegian Institute of Bioeconomy Research. Peat depths were measured using manual probing, boreholes, and ground-penetrating radar (GPR). The data package is intended for use in digital soil mapping (DSM) applications at the landscape-regional scale, particularly for predicting peat depth and assessing relationships between peat depth and environmental variables. It supports research on peatland carbon stocks, land use planning, and climate change mitigation. The peat depth measurements are intended to be representative of sampled locations within the study areas, with a focus on peatland environments. The data package does not include comprehensive peatland extent mapping but provides insights into the spatial variability of peat depths in Norwegian landscapes.
Dendrometer studies for stand volume and height measurements of trees of the western US, 1976 to 1993
Dendrometry is used to get an accurate estimate of volume and height for individual trees. Volume tables or regressions may be generated. This method accurately accounts for taper by measuring at consecutive points up the bole.
Dendrochronology study of fire history, Andrews Experimental Forest and central western Cascades, Oregon, 1482-1952
Fire history is documented for an 11,000 hectare (27,110 acre) area in the western Oregon Cascades , including H. J. Andrews Experimental Forest. Fire scar and tree origin data were collected mainly from stumps at 359 sites. Thirty-five fire events are mapped from 1482 to 1952. Mean fire return intervals are derived from data at individual sites, about 5 hectares in size, rather than from the corrected master fire chronology.
Fire history database of the western United States, 1994
To create a database of existing published and unpublished tree-ring reconstructions of fire regimes in forested areas, before circa 1900, west of 100 W longitude in the continental United States, exclusive of Alaska. The studies included in the database are restricted to tree-ring reconstructions of fire history and the information extracted includes citations to the data sources, site information, estimated fire regimes, and information on individual fire events (when readily available). Fire regimes vary greatly across short distances in the western United States, so that a reconstruction of fire history over a small area may not represent the history of a larger area. Therefore, we extracted information on the size of the study area and the amount of fire evidence (number of trees scarred and/or number of tree origin dates) used in computing the fire regimes to allow the user to gauge the applicability of each reconstruction to larger areas.
Dimensions, cover, volumes, mass and nutrient stores of Coarse Woody Debris (bark and wood from logs, snags, and stumps) from forests plots in the western United States and Mexico, 1977 to 2005
These data provide an inventory of the mass and nutrients stored within various forest types by coarse woody debris (CWD). CWD inventoried includes standing dead trees (greater than 10 cm diameter at breast height) and dead and downed wood (greater than 10 cm large end and >1 long). The majority of measurements are from permanent sample plots associated with the Andrews LTER permanent sample plots network. This includes clusters of plots at and near the H. J. Andrews Experimental Forest (OR), Cascade Head Experimental Forest (OR), Mount Rainier National Park (WA), Olympic National Park (WA), and Fraser Experimental Forest (CO). There are also data from plots in the Yucatan in Mexico; however, the live tree data for these plots is not available. The species of CWD inventoried are primarily those found in the Pacific Northwest; the dominants being Douglas-fir, western hemlock, mountain hemlock, western redcedar, Pacific silver fir, noblel fir, lodgepole pine, ponderosa pine, sitka spruce, and Englemann spruce. The majority of measurements were made in the 1975 to 1995 period; however plots are periodically remeasured and the intent to eventually remeasure all the plots except those in Mexico. In each plot measurements of log and snag dimensions (length and diameters), as well as decay class and species were recorded in the stands (td01201 file). These dimension data are combined with data on density and nutrient content for each species and decay class (td01202 file) and plot area and slope (td01203 file) to calculate CWD volume, cover, biomass and nutrient storage (td01204 file). When data on density and nutrient concentrations is not known, a list of substitutions is used (td01206). The adjust tree diameters if measurements are taken at the base of the dead tree, taper regressions are used (td01205).
Fire history dendrochronology study, super old growth data, central western Cascades, Oregon, 2002 (Giglia thesis)
The primary objectives of this study were to assay where super old-growth (SOG) persists on the landscape, what factors enabled it to survive for more than 550 years, and to develop a predictive model for the occurrence of SOG. To meet these objectives, data were synthesized from prior fire history work done in the central western Cascades of Oregon (Morrison and Swanson unpublished; Teensma 1987; Morrison and Swanson 1990; Weisberg 1998). The study involved the following steps: (1) the collection of primary data and maps from each study, (2) the creation of a master database, and (3) analysis of the synthesized data.
Epiphytic macrolichens in relation to forest management and topography in a western Oregon watershed, 1997-1999 (Berryman thesis)
Epiphytic macrolichen communities were sampled in 117 coniferous stands in Blue River watershed of western Oregon. Stands were sampled across various stand types defined by stand structure, according to age classes of the younger tree cohort and remnant tree retention. Remnant trees were those in an older cohort that remained following a stand disturbance that initiated tree regeneration, such as a timber harvest or natural forest fire. Stands were located in upland and riparian forests of two vascular plant series (western hemlock and true fir). Presence and abundance of all epiphytic macrolichen species were sampled in a 0.4 ha circular Forest Health Monitoring (FHM) plot in the 117 stands. Epiphytic lichen biomass (oven-dried, kg/ha) was estimated for three functional groups: nitrogen-fixing cyanolichens, forage lichens, and matrix lichens in 63 of the 117 stands.
Age structure, developmental pathways, and fire regime characterization of Douglas-fir/western hemlock forests in the central western Cascades of Oregon
These data are the raw forest stand- and age-structure data from 124 stands in the central western Cascades of Oregon used to construct a conceptual model of stand development under the mixed-severity fire regime that has operated extensively in this region.
Ecological Forestry in Western Oregon: A Critical Analysis from Andrews Forest LTER Research, 2014-2015
This work highlights the normative dimensions of “ecological forestry,” a strategy of forest management that uses silviculture to mimic the effects of non-anthropogenic processes of disturbance and succession in order to meet multiple objectives on a single piece of land. An analysis of the arguments made about ecological forestry, both broadly theoretical and pertaining specifically to western Oregon, shows that empirical uncertainties and normative gaps need to be addressed before we can make a clear, well-reasoned decision about whether ecological forestry is a viable and appropriate strategy for forest management and conservation.
The role of fire in the carbon dynamics of the boreal forest I. - Response of area burned to changing climate in western boreal North America using a Multivariate Adaptive Regression Splines (MARS) approach (2003-2100).
The boreal forest contains large reserves of carbon, and across this region wildfire is a common occurrence. To improve the understanding of how wildfire influences the carbon dynamics of this region, methods were developed to incorporate the spatial and temporal effects of fire into the Terrestrial ecosystem Model (TEM). The historical role of fire on carbon dynamics of the boreal region was evaluated within the context of ecosystem responses to changing atmospheric CO2 and climate. These results show that the role of historical fire on boreal carbon dynamics resulted in a net carbon sink; however, fire plays a major role in the interannual and decadal scale variation of source/sink relationships. To estimate the effects of future fire on boreal carbondynamics, spatially and temporally explicit empirical relationships between climate andfire were quantified. Fuel moisture, monthly severity rating, and air temperature explained a significant proportion of observed variability in annual area burned. These relationships were used to estimate annual area burned for future scenarios of climate change and were coupled to TEM to evaluate the role of future fire on the carbon dynamics of the North American boreal region for the 21st Century. Simulations with TEM indicate that boreal North America is a carbon sink in response to CO2 fertilization, climate variability, and fire, but an increase in fire leads to a decrease in the sink strength. While this study highlights the importance of fire on carbon dynamics in the boreal region, there are uncertainties in the effects of fire in TEM simulations. These uncertainties are associated with sparse fire data for northern Eurasia, uncertainty in estimating carbon consumption, and difficulty in verifying assumptions about the representation of fires that occurred prior to the start of the historical fire record. Future studies should incorporate the role of dynamic vegetation to more accurately represent post-fire successional pr
Spiders in a Desert City: What the Behavior and Microclimate of Western Black Widows Can Teach Us About the Impacts of Urbanization
With the planet rapidly urbanizing, understanding the ecological effects of urbanization is a grand challenge for modern biology. For example, increased city temperatures known as the urban heat island effect, disproportionately impact nocturnal taxa and this consideration is widely overlooked. Slight shifts in the thermal microclimate have a cascade of ramifications that directly impact species density and distribution. Animal behavior is a trait that may explain why some species thrive after urbanization when others go locally extinct. In this study we followed 22 adult females of the western black widow, Latrodectus hesperus, from both urban and undisturbed Sonoran Desert habitats. We began looking for differences between urban and desert spiders under field conditions: boldness, voracity, web size and body condition. Both urban and desert spiders were then brought to the laboratory to see how their behavior changed. We found no behavioral differences between urban and desert spiders in the field or the laboratory. We did find that spider behavior differed between the field and the laboratory. Specifically, boldness in the laboratory was significantly lower compared to the field. Voracity was more repeatable in the laboratory versus the field, and boldness was strongly positively correlated with voracity in the laboratory, but not in the field. These behavioral shifts from the field to the laboratory favor the conclusion that black widow behavior is highly plastic and context dependent. Lastly, we monitored web temperature of black widow microhabitat continuously for an entire year using thermochron data loggers. We found microhabitat temperatures differences between urban and desert sites were greatest at night and absent during the daytime. We uncovered a seasonal effect with the highest magnitude temperature difference occurring during the springtime. Additionally, behavior was significantly correlated with field temperatures; the boldest spiders come from the
Simulated bioenergy crop yield on agricultural land in a 10-county region of western North Carolina.
We used a mechanistic plant growth model, ALMANAC (Kiniry 1996), to simulate the growth of bioenergy crops including switchgrass, miscanthus, and hybrid poplar. We selected simulation points by overlaying SSURGO soil data polygons with a 1-km resolution observed climate dataset (Thornton et al. 2012). The centroid of each unique soil polygon and climate cell combination was used as a simulation point, resulting in over 69,000 simulation points. Crop growth was simulated at each point for 10 (grasses) or 12 (poplar) years and replicated 10 times. We limited our simulation to area currently identified as agriculture, pasture, grass- or shrubland in the 2012 National Cropdata Layer.
Nest-mediated seed dispersal study from mixed habitats in North Georgia and Western North Carolina
Many plant seeds travel on the wind and through animal ingestion or adhesion; however, an overlooked dispersal mode may lurk within those dispersal modes. Viable seeds may remain attached or embedded within materials birds gather for nest building. Our objective was to determine if birds inadvertently transport seeds when they forage for plant materials to build, insulate, and line nests. We also hypothesized that nest-mediated dispersal might be particularly useful for plants that use mating systems with self-fertilized seeds embedded in their stems. We gathered bird nests in temperate forests and fields in eastern North America and germinated the plant material. We also employed experimental nest boxes and performed nest dissections to rule out airborne and fecal contamination. We found that birds collect plant stem material and mud for nest construction and inadvertently transport the seeds contained within. Experimental nest boxes indicated that bird nests were not passive recipients of seeds (e.g., carried on wind), but arrived in the materials used to construct nests. We germinated 144 plant species from the nests of 23 bird species. A large proportion of the nest germinants were graminoids containing self-fertilized seeds inside stems—suggesting that nest dispersal may be an adaptive benefit of closed mating systems. Avian nest building appears as a dispersal pathway for hundreds of plant species, including many non-native species, at distances of at least 100–200 m. We propose a new plant dispersal guild to describe this phenomenon, caliochory (calio = Greek for nest).
Nitrate (15N) Uptake from samples collected aboard Palmer LTER annual cruises off the Western Antarctic Peninsula, 2012-2014
Nitrate uptake by the bulk phytoplankton community was determined using tracer (<10%) additions of labeled 15-NO3. Samples were collected by Go-Flo from 5 depths 0, 5, 10, 20, 65 m and incubated for 24 h at light levels of 100%, 50%, 25%, 10%, and 0% surface irradiance, respectively.
Figs. 21-24 in On Hesperocranum, A New Spider Genus from Western North America (Araneae, Liocranidae)
Figs. 21-24. Hesperocranum rothi, new species, male palp. 21. Prolateral view. 22. Retrolateral view. 23. Prolateral view of embolar region. 24. Ventral view.
Figs. 17-20 in On Hesperocranum, A New Spider Genus from Western North America (Araneae, Liocranidae)
Figs. 17-20. Hesperocranum rothi, new species, female. 17. Chelicerae and eye region, anterior view. 18. Eye region, dorsal view. 19. Epigynum, ventral view. 20. Posterior median spinnerets, anterior end towards top of photo. Original magnification = 700 x.
Fig. 3 in Revision of Bairdiella (Sciaenidae: Perciformes) from the western South Atlantic, with insights into its diversity and biogeography
Fig. 3. The Atlantic coast of North, Central, and South America showing the geographic distribution of Bairdiella goeldi sp. nov. (yellow = molecular north–northeastern lineage, light blue = molecular southeastern lineage, white = no molecular data), B. ronchus (red), and B. veraecrucis (green). Some symbols represent more than one locality or a large number of specimens.
Fig. 3 in A new western Atlantic snapping shrimp of the Alpheus macrocheles group (Caridea, Alpheidae) revealed by morphological, molecular and color data
Fig. 3. Alpheus ramosportoae sp. nov., paratype, ♂, from seamounts of the North Chain, Ceará, northeastern Brazil (MOUFPE 13703). A. Second pereiopod, lateral view. B. Third pereiopod, lateral view. C. Fourth pereiopod, lateral view. D. Fifth pereiopod, lateral view. E–G. Third to fifth pereiopods, detail of propodus, lateral view. H–I. Third and fourth pereiopods, detail of dactylus. Scale bars: A–G = 0.5 mm; H–I = 0.25 mm.
Fig. 1 in A new western Atlantic snapping shrimp of the Alpheus macrocheles group (Caridea, Alpheidae) revealed by morphological, molecular and color data
Fig. 1. Alpheus ramosportoae sp. nov. A–D. Holotype, ♂, from off Recife, state of Pernambuco, northeastern Brazil (MOUFPE 19470). A. Carapace and cephalic appendages, dorsal view (setae omitted). B. Same, lateral view. C. Tooth on ventromesial carina of antennular peduncle. D. Left mandible, mesial view. E–L. Paratype, ♂, from seamounts of the North Chain, Ceará, northeastern Brazil (MOUFPE 13703). E. First maxilla, lateral view. F. Second maxilla, lateral view. G. First maxilliped, lateral view. H. Second maxilliped, lateral view. I. Third maxilliped, lateral view. J. Telson and uropods, dorsal view (setae omitted). K. Uropod, detail of the distolateral angle of the exopod. L. Uropod, detail of the posteerior margin of endopod. Scale bars: A–B, J = 1 mm; C–I, K–L = 0.5 mm.
Figures 7–13 in Two new species and two new combinations in Saphenista Walsingham, 1914 from western North America (Lepidoptera: Tortricidae)
Figures 7–13. Genitalia of Saphenista. 7) Male of S. bartellae, USNM slide 150,181. 8) Male of S. powelli, USNM slide 153,767. 9) Male of S. latipunctana, MGP slide 349. 10) Male of S. dilutana, USNM slide 150,185. 11) Female of S. bartellae, USNM slide 150,182. 12) Female of S. powelli, USNM slide 153,565. 13) Female of S. latipunctana, EME slide 2762.
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.