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.
158
datasets available to search
ShareScore release 0.9.0
Dataset results
158 results for “historical records”
FIGURE 5 in Diversity and Distribution of the Amphibians and Terrestrial Reptiles of Angola Atlas of Historical and Bibliographic Records (1840-2017)
FIGURE 5. Annual mean temperatures of Angola (after Hijmans et al. 2005).
FIGURE 2 in Diversity and Distribution of the Amphibians and Terrestrial Reptiles of Angola Atlas of Historical and Bibliographic Records (1840-2017)
FIGURE 2. The topography of Angola (after Sayre et al. 2013)
FIGURE 7 in Diversity and Distribution of the Amphibians and Terrestrial Reptiles of Angola Atlas of Historical and Bibliographic Records (1840-2017)
FIGURE 7. Major ecoregions of Angola (after Olson et al. 2001).
Dataset from Osika and Jania (2024): Geomorphological and historical records of the surge-type behaviour of Hansbreen (Svalbard)
<h2>Geomorphological map of the terrestrial and submarine forefield of Hansbreen</h2> <p>This dataset contains shapefiles of geomorphological features in the terrestrial and submarine forefield of Hansbreen, a marine-terminating glacier in Hornsund (southern Spitsbergen, Svalbard), associated and described further in Osika and Jania (2024).</p> <p>Field investigation was conducted in 2021-2023. Mapping was performed in QGIS 3.22 using the WGS84/UTM33N spatial reference system and based on several datasets:</p> <ul> <li>a very high-resolution orthophotomap and DEM generated and published by Błaszczyk et al. (2022),</li> <li>bathymetric data generated and published by Błaszczyk et al. (2021) and from Kartverket.</li> </ul> <p>For detailed information about data sources used for mapping, see:</p> <p>Błaszczyk M and 12 others (2021) Factors controlling terminus position of Hansbreen, a tidewater glacier in Svalbard. J. Geophys. Res.: Earth Surf., 126(2), e2020JF005763 (doi: 10.1029/2020JF005763).</p> <p>Błaszczyk M, Laska M, Sivertsen A and Jawak SD (2022) Combined Use of Aerial Photogrammetry and Terrestrial Laser Scanning for Detecting Geomorphological Changes in Hornsund, Svalbard. Remote Sens., 14(3), 601. (doi: 10.3390/rs14030601).</p> <p> </p> <p><em>This work was funded by the National Science Centre of Poland (grant no. 2021/41/N/ST10/02070).</em></p> <p>Please cite the database alongside this resource: Osika A., Jania J., 2024: Geomorphological and historical records of the surge-type behaviour of Hansbreen (Svalbard). Annals of Glaciology 65, e31. doi:10.1017/aog.2024.32</p>
Opening the museum’s vault: Historical field records preserve reliable ecological data
Open the record for dataset details and reuse information.
Data from: Historical field records reveal habitat as an ecological correlate of locomotor phenotypic diversity in the radiation of Neotropical Geophagini fishes
Open the record for dataset details and reuse information.
Historical CO2 Record from the Vostok Ice Core
<p>Historical CO2 Record from the Vostok Ice Core, from http://cdiac.ornl.gov/ftp/trends/co2/vostok.icecore.co2. </p> <p>See associated publication for details: Barnola, J., Raynaud, D., Korotkevich, Y. et al. "Vostok ice core provides 160,000-year record of atmospheric CO2". Nature 329, 408–414 (1987), https://doi.org/10.1038/20859</p>
Data from: Islands in the ice: detecting past vegetation on Greenlandic nunataks using historical records and sedimentary ancient DNA meta-barcoding
Nunataks are isolated bedrocks protruding through ice sheets. They vary in age, but represent island environments in "oceans" of ice through which organism dispersals and replacements can be studied over time. The J.A.D. Jensen's Nunataks at the southern Greenland ice sheet are the most isolated nunataks on the northern hemisphere - some 30 km from the nearest biological source. They constitute around 2 km2 of ice-free land that was established in the early Holocene. We have investigated the changes in plant composition at these nunataks using both the results of surveys of the flora over the last 130 years, and through reconstruction of the vegetation from the end of the Holocene Thermal Maximum (5528±75 cal yr BP) using meta-barcoding of plant DNA recovered from the nunatak sediments (sedaDNA). Our results show that several of the plant species detected with sedaDNA are described from earlier vegetation surveys on the nunataks (in 1878, 1967 and 2009). In 1967, a much higher biodiversity was detected than from any other of the studied periods. While this may be related to differences in sampling efforts for the oldest period, it is not the case when comparing the 1967 and 2009 levels where the botanical survey was exhaustive. As no animals and humans are found on the nunataks, this change in diversity over a period of just 42 years must relate to environmental changes likely being climate-driven. This suggests that even the flora of fairly small and isolated ice-free areas reacts quickly to a changing climate.
Data from: Historical invasion records can be misleading: genetic evidence for multiple introductions of invasive raccoons (Procyon lotor) in Germany
Biological invasions provide excellent study systems to understand evolutionary, genetic and ecological processes during range expansions. There is strong evidence for positive effects of high propagule pressure and the associated higher genetic diversity on invasion success, but some species have become invasive despite small founder numbers. The raccoon (Procyon lotor) is often considered as a typical example for such a successful invasion resulting from a small number of founders. The species' largest non-native population in Germany is commonly assumed to stem from a small number of founders and two separate founding events in the 1930s and 1940s. In the present study we analyzed 407 raccoons at 20 microsatellite loci sampled from the invasive range in Western Europe to test if these assumptions are correct. Contrary to the expectations, different genetic clustering methods detected evidence for at least four independent introduction events that gave rise to genetically differentiated subpopulations. Further smaller clusters were either artifacts or resulted from founder events at the range margin and recent release of captive individuals. We also found genetic evidence for on-going introductions of individuals. Furthermore a novel randomization process was used to determine the potential range of founder population size that would suffice to capture all the alleles present in a cluster. Our results falsify the assumption that this species has become widespread and abundant despite being genetically depauperate and show that historical records of species introductions may be misleading.
FIGURE 2 in Historical record and supplementary description of Cymbasoma bullatum (A. Scott) (Copepoda: Monstrilloida) from the " Albatross " cruise in the Philippines
FIGURE 2. Cymbasoma bullatum (A. Scott, 1909), adult male from Recodo Bay, Mindanao. A) left antennule, dorsal, showing setal nomenclature of Grygier and Ohtsuka (1995) for segments 1 to 4 and Huys et al. (2007) for the distal segment; B) right antennule, dorsal, labeled as in (A); C) cephalic region, ventral, showing protuberance and adjacent cuticular processes; D) cephalic processes, lateral view; E) genital lappets, ventral view; F) urosome and caudal rami (caudal setae cut short), lateral view.
FIGURE 1 in Historical record and supplementary description of Cymbasoma bullatum (A. Scott) (Copepoda: Monstrilloida) from the " Albatross " cruise in the Philippines
FIGURE 1. Cymbasoma bullatum (A. Scott, 1909), adult male from Recodo Bay, Mindanao. A) habitus, ventral view; B) habitus, dorsal view; C) habitus, lateral view.
Subspecies and Distribution. A. [. fusciceps Gray, 1866 — NW Ecuador, W of the Andes, historically in the provinces of Esmeraldas and Carchi, from the Colombian border S to the Cordillera de Colonche in the Guayas Province (most S record is in "Puente sobre el rio Chimbo," Chimborazo Province), but today it is restricted to two remnant populations (Awa Ethnological Reserve N of the Rio Mira, and Cotacachi-Cayapas Ecological Reserve and adjacent Los Cedros Protected Forest and surrounding forests S of the Rio Mira). A. f. rufiventris Sclater, 1872 — E Panama (Atlantic slope) and W Colombia from the Uraba region in NW Antioquia, N through Cordoba, Sucre, and N Bolivar departments (N distributional limit on the S bank of the Canal del Dique, Cartagena), W of the Rio Cauca to the coast, E to the lower Rio Cauca along the W bank to SC Antioquia (the Cerro Pirre or the Rio Tucuti marks the border with A. geoffroyi grisescens), and S to the Cordillera Occidental of the Andes in SW Colombia (the most southerly record is Barabacoas, Narino Department). in Atelidae
Subspecies and Distribution. A. [. fusciceps Gray, 1866 — NW Ecuador, W of the Andes, historically in the provinces of Esmeraldas and Carchi, from the Colombian border S to the Cordillera de Colonche in the Guayas Province (most S record is in "Puente sobre el rio Chimbo," Chimborazo Province), but today it is restricted to two remnant populations (Awa Ethnological Reserve N of the Rio Mira, and Cotacachi-Cayapas Ecological Reserve and adjacent Los Cedros Protected Forest and surrounding forests S of the Rio Mira). A. f. rufiventris Sclater, 1872 — E Panama (Atlantic slope) and W Colombia from the Uraba region in NW Antioquia, N through Cordoba, Sucre, and N Bolivar departments (N distributional limit on the S bank of the Canal del Dique, Cartagena), W of the Rio Cauca to the coast, E to the lower Rio Cauca along the W bank to SC Antioquia (the Cerro Pirre or the Rio Tucuti marks the border with A. geoffroyi grisescens), and S to the Cordillera Occidental of the Andes in SW Colombia (the most southerly record is Barabacoas, Narino Department).
Distribution. Highlands of S India; in Tamil Nadu it has been recorded from several localities in the Nilgiri Hills and there is an historical record from the Palni (= Palani) Hills; in Kerala it is recorded from the historical type locality of Thrissur and also the Erivakulam National Park. in Soricidae
Distribution. Highlands of S India; in Tamil Nadu it has been recorded from several localities in the Nilgiri Hills and there is an historical record from the Palni (= Palani) Hills; in Kerala it is recorded from the historical type locality of Thrissur and also the Erivakulam National Park.
FIGURE 9 in A review of records of the Trimeresurus albolabris Gray, 1842 group from the Indian subcontinent: expanded description and range extension of Trimeresurus salazar, redescription of Trimeresurus septentrionalis and rediscovery of historical specimens of Trimeresurus davidi (Reptilia: Viperidae)
FIGURE 9. Trimeresurus septentrionalis live adult female from Kathmandu, Nepal, showing its diagnostic character of plain grass green colouration without any mix of yellow in it. Photo: Gernot Vogel
FIGURE 8. Trimeresurus septentrionalis Holotype MHNG 1404.31 in A review of records of the Trimeresurus albolabris Gray, 1842 group from the Indian subcontinent: expanded description and range extension of Trimeresurus salazar, redescription of Trimeresurus septentrionalis and rediscovery of historical specimens of Trimeresurus davidi (Reptilia: Viperidae)
FIGURE 8. Trimeresurus septentrionalis Holotype MHNG 1404.31 from Nähe Pokhara, Nepal. Photos: Gernot Vogel.
FIGURE 7. Trimeresurus davidi NMW 23925 in A review of records of the Trimeresurus albolabris Gray, 1842 group from the Indian subcontinent: expanded description and range extension of Trimeresurus salazar, redescription of Trimeresurus septentrionalis and rediscovery of historical specimens of Trimeresurus davidi (Reptilia: Viperidae)
FIGURE 7. Trimeresurus davidi NMW 23925:1, 2 entire views: (top right and left), tail profile (mid-left) photos: Gernot Vogel; NHMUK 1986.7.7.40–41 paratypes (mid-right and bottom left and right; photos: P.D. Campbell).
FIGURE 6. Trimeresurus salazar NHMUK 1937.3.1.14 in A review of records of the Trimeresurus albolabris Gray, 1842 group from the Indian subcontinent: expanded description and range extension of Trimeresurus salazar, redescription of Trimeresurus septentrionalis and rediscovery of historical specimens of Trimeresurus davidi (Reptilia: Viperidae)
FIGURE 6. Trimeresurus salazar NHMUK 1937.3.1.14 from 'Nagpur, Central Province', India. Photos: Gernot Vogel
FIGURE 5 in A review of records of the Trimeresurus albolabris Gray, 1842 group from the Indian subcontinent: expanded description and range extension of Trimeresurus salazar, redescription of Trimeresurus septentrionalis and rediscovery of historical specimens of Trimeresurus davidi (Reptilia: Viperidae)
FIGURE 5. Trimeresurus salazar live adult males showing intraspecific variation in the intensity of red lateral striping—top: individual with bold and thick red stripe from Byrnihat, Meghalaya (Photos: Ashok K. Mallik); above: individual with obscure and thin red stripe from Kanha, Madhya Pradesh. (Photo: Yajuvendra Upadhyaya).
FIGURE 3 in A review of records of the Trimeresurus albolabris Gray, 1842 group from the Indian subcontinent: expanded description and range extension of Trimeresurus salazar, redescription of Trimeresurus septentrionalis and rediscovery of historical specimens of Trimeresurus davidi (Reptilia: Viperidae)
FIGURE 3. Trimeresurus salazar live uncollected subadult males from Jashpur, India. Photos: Vivek Sharma
FIGURE 1 in A review of records of the Trimeresurus albolabris Gray, 1842 group from the Indian subcontinent: expanded description and range extension of Trimeresurus salazar, redescription of Trimeresurus septentrionalis and rediscovery of historical specimens of Trimeresurus davidi (Reptilia: Viperidae)
FIGURE 1. Map of the Indian subcontinent showing newly recorded / identified distribution records of (i). Trimeresurus salazar (black; field records: squares, specimen records: dots); (ii). T. septentrionalis (white); type localities with a dot in the middle (iii). T. davidi (encircled—corrected locality / X—incorrect locality)
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.