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.
535
datasets available to search
ShareScore release 0.9.0
Dataset results
535 results for “quaternary”
Data for Body mass-related changes in mammal community assembly patterns during the late Quaternary of North America
<p>The late Quaternary of North America was marked by prominent ecological changes, including the end-Pleistocene megafaunal extinction, the spread of human settlements, and the rise of agriculture. Here we examine the mechanistic reasons for temporal changes in mammal species association and body size during this time period. Building upon the co-occurrence results from Lyons et al. (2016) – wherein each species pair was classified as spatially aggregated, segregated, or random – we examined body mass differences (BMD) between each species pair for each association type and time period (Late Pleistocene: 40,000 14C - 11,700 14C ybp, Holocene: 11,700 14C - 50 ybp, and Modern: 50 - 0 yrs). In the Late Pleistocene and Holocene, the BMD of both aggregated and segregated species pairs was significantly smaller than the BMD of random pairs. These results are consistent with environmental filtering and competition as important drivers of community structure in both time periods. Modern assemblages showed a breakdown between BMD and co-occurrence patterns: the average BMD of aggregated, segregated, and random species pairs did not differ from each other. Collectively, these results indicate that the late Quaternary mammalian extinctions not only eliminated many large- bodied species but were followed by a re-organization of communities that altered patterns of species coexistence and associated differences in body size.</p>
Improved antibacterial activity of hemp fibres by covalent grafting of quaternary ammonium groups
<p><span><span>In this study, novel antibacterial hemp fibres grafted with </span></span>quaternary<span><span> ammonium groups, named HF-GTA, were prepared by alkalisation, oxidation, amination, and quaternisation multistage reactions. The chemical structure and micromorphology of the fibres were characterised by Fourier-transform infrared spectroscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, thermogravimetric analysis, and X-ray diffraction. The grafting and reaction mechanisms were proved to be successful, which indicated that the grafting reaction primarily occurred on the </span></span>hydroxyl <span><span>groups of cellulose and hemicellulose in the hemp fibres, where they retained good fibrous morphology, thermal stability and hygroscopicity. The antibacterial activity of HF-GTA exhibited the best antibacterial activity, where the antibacterial ratios against <i><span>E. coli </span></i>and <i><span>S. aureus</span></i> were 95.41% and 99.64%, respectively. <span>E</span><span>ven </span><span>a</span><span>fter 30 times of washing</span><span>, </span><span>the antibacterial activity </span><span>wa</span><span>s</span><span> retained</span><span> at </span><span>89.78% and 91.12%</span><span>,</span><span> indicating that HF-GTA </span><span>wa</span><span>s</span><span> endowed with good washing resistance. </span>The antibacterial mechanism occurred because the electrostatic reaction reduced the electrochemical potential on the cell membrane, leading to the release of cytoplasmic substances and the dissolution of cells, thereby producing antibacterial activity. It would be significantly important to guarantee textile quality and prevent disease transmission. </span></span></p>
Regionally divergent drivers of historical diversification in the late Quaternary in a widely distributed generalist species, the common pheasant Phasianus colchicus
<p>Aim: Pleistocene climate and associated environmental changes have influenced phylogeographic patterns of many species. These not only depend on a species' life history but also vary regionally. Consequently, populations of widespread species that occur in several biomes might display different evolutionary trajectories. We aimed to identify regional drivers of diversification in the common pheasant, a widely distributed ecological generalist. <br> <br> Study location Asia<br> <br> Taxon common pheasant Phasianus colchicus<br> <br> Methods Using a comprehensive geographic sampling of 204 individuals from the species' entire range genotyped at seven nuclear and two mitochondrial loci, we reconstructed spatio-temporal diversification and demographic history of the common pheasant. We applied Bayesian phylogenetic inference to describe phylogeographic structure, generated a species tree, and inferred demographic history within and migration between lineages. Moreover, to establish a taxonomic framework, we conducted a species delimitation analysis.<br> Results The common pheasant diversified during the late Pleistocene into eight distinct lineages. It originated at the edge of the Qinghai-Tibetan plateau and spread to East and Central Asia. Only the widely distributed lowland lineage of East Asia displayed recent range expansion. Greater phylogeographic structure was identified elsewhere, with lineages showing no sign of recent demographic changes. One lineage in south-central China is the result of long-term isolation within a climatically stable but topographically complex region. In lineages from arid Central Asia and China, range expansions were impeded by repeated population fragmentation during dry glacial periods and by recent aridification. <br> <br> Main conclusions <br> Spatio-temporal phylogeographic frameworks of widespread taxa such as the common pheasant provide valuable opportunities to identify divergent drivers of regional diversification. Our results suggest that diversification and population histories in the eight distinct evolutionary lineages were shaped by regionally variable effects of past climate and associated environmental changes. The evolutionary history of the common pheasant is best reflected by its being split into three species.</p>
Data from: Population-level plant pollination mode is influenced by Quaternary climate and pollinators
<p>Patterns in ecology are the products of current factors interacting with history. Nevertheless, few studies have attempted to disentangle the contribution of historical and current factors, such as climate change and pollinator identity and behaviour, on plant reproduction. Here, we attempted to separate the relative importance of current and historical processes on geographical patterns of the mating system of the tree species Curatella americana (Dilleniaceae). Specifically, we asked: 1) How do Quaternary and current climate affect plant mating system? 2) How does current pollinator abundance and diversity relate to plant mating system? 3) How does mating system relate to fruit/seed quantity and quality in Curatella americana? We recorded pollinators (richness, frequency and body size) and performed pollination tests in ten populations of C. americana spread over 3,000 km in the Brazilian savannah. The frequency of self-pollination in the absence of pollinators was strongly influenced by historical climatic instability and not by present-day pollinators. In contrast, seed set from hand-cross and natural pollination were affected by pollinators (especially large bees) and temperature, indicating the importance of current factors on out-cross pollination. Two populations at the Southern edge of the species' distribution showed high level of hand-cross-pollination and high flower visitation by large bees, but also a high level of autogamy resulting from recent colonization. Our results indicate that historical instability in climate has favoured autogamy, most likely as a reproductive insurance strategy facilitating colonization and population maintenance over time, while pollinators are currently modulating the level of cross-pollination.</p>
FIGURE 3 in Morphological variation in the genus Juliomys (Rodentia: Cricetidae Sigmodontinae) and taxonomic status of Juliomys anoblepas (Winge 1887) from the Quaternary of Southeast Brazil
FIGURE 3. Characters proposed herein and identified as polymorphic in Juliomys species. 1—Short nasal in the paratype of J. rimofrons (MN46703); 2—Long nasal in the paratype of J. rimofrons (MN61646); 3—Anterior cingulum in J. pictipes (UFES2269); 4—Vestigial anterior cingulum in J. ossitenuis (UFSM599); 5—Anterior cingulum absent in J. ossitenuis (MN81912); 6—Enteroloph and enterostyle, both present in J. pictipes (MN77793); 7—Only enterostyle present in J. pictipes (UFSM517); 8—Both absent in the holotype of J. ximenezi (MCNU868). Line = triple point lacrimal-maxillary-frontal suture; arrow = extension of nasal; ac = anterior cingulum; el = enteroloph; es = enterostyle. Scale = 2 mm in images 1–2 and 1 mm in images 3–8.
FIGURE 2 in Morphological variation in the genus Juliomys (Rodentia: Cricetidae Sigmodontinae) and taxonomic status of Juliomys anoblepas (Winge 1887) from the Quaternary of Southeast Brazil
FIGURE 2. Dorsal, ventral, and lateral views of skull of J. anoblepas. 1—Photo modified from Pardiñas & Teta (2011); 2—Photo by Kasper Hansen, illustrating the current state of preservation of the specimen. The specimen is housed at Lund Collection (ZMUC), Copenhagen, Denmark, but it has no catalog number. Its recognition is unquestionable by Winge (1887)'s description and illustration. Scale = 5 mm.
FIGURE 1 in Morphological variation in the genus Juliomys (Rodentia: Cricetidae Sigmodontinae) and taxonomic status of Juliomys anoblepas (Winge 1887) from the Quaternary of Southeast Brazil
FIGURE 1. Map showing the collecting localities of specimens of J. pictipes (black circles), J. anoblepas (star), J. ossitenuis (white circles), J. rimofrons (triangles), J. ximenezi (squares). Atlantic Forest extension is marked in gray and numbers correspond to the localities listed in appendix 1.
FIGURE 5 in Morphological variation in the genus Juliomys (Rodentia: Cricetidae Sigmodontinae) and taxonomic status of Juliomys anoblepas (Winge 1887) from the Quaternary of Southeast Brazil
FIGURE 5. Characters previously proposed as diagnostic, and herein identified as polymorphic or invariable. 1—Little excavated zygomatic notch in J. pictipes (MN81096); 2—Zygomatic notch more excavated in J. pictipes (MN69764); 3—Frontal fontanelle absent in J. pictipes (UFES2421); 4—Frontal fontanelle present in J. pictipes (UFES2432); 5–8—Interorbital region is hourglass shaped in all specimens of Juliomys: note differences in the shape of supraorbital margin, which is squared in J. pictipes (Fig. 5.5, MN77793), rounded in J. ossitenuis (Fig. 5.6, MN81085), rounded in J. rimofrons (Fig. 5.7, MN46703), and slightly squared in J. ximenezi (Fig. 5.8, MCNU868); 9–10—Posterolateral pits with same size in J. ossitenuis (Fig. 5.9, MN81852), and in J. pictipes (Fig. 5.10, MZUSP32666). Horizontal arrow = frontal fontanelle; inclined arrow = supraorbital margin. Scale = 2 mm in images 1–8 and 1 mm in images 9–10.
FIGURE 4 in Morphological variation in the genus Juliomys (Rodentia: Cricetidae Sigmodontinae) and taxonomic status of Juliomys anoblepas (Winge 1887) from the Quaternary of Southeast Brazil
FIGURE 4. Frequency of states related to characters that can be applied to J. anoblepas. 1—Extension of the nasal; 2—Depth of the zygomatic notch; 3—Frontal fontanelle; 4—Extension of the incisive foramen; 5—Anterior cingulum; 6—Enteroloph and enterostyle. Numbers in bars correspond to number of specimens that have each state. Abbreviations: pic = J. pictipes, oss = J. ossitenuis, rim = J. rimofrons, and xim = J. ximenezi.
FIGURE 6 in Morphological variation in the genus Juliomys (Rodentia: Cricetidae Sigmodontinae) and taxonomic status of Juliomys anoblepas (Winge 1887) from the Quaternary of Southeast Brazil
FIGURE 6. Scatterplot results of principal component analysis of log-transformed cranial measurements. Juliomys anoblepas hypodigm is indicated by an asterisk (*). Numbers indicate holotypes: 1, J. pictipes (FMNH26814); 2, J. ossitenuis (MN69752); 3, J. rimofrons (MN61647); and 4, J. ximenezi (MCNU868).
FIGURE 5. Decapods from the Moeshima Silt Bed. A in Fossil decapods from the Upper Quaternary in Shinjima Island in Kagoshima Kyushu, Japan, and description of a new species of ghost shrimp (Axiidea Eucalliacidae)
FIGURE 5. Decapods from the Moeshima Silt Bed. A, Munida sp., MFM145609, dorsal view of carapace. B, C, Tymolus un-
FIGURE 2 in Fossil decapods from the Upper Quaternary in Shinjima Island in Kagoshima Kyushu, Japan, and description of a new species of ghost shrimp (Axiidea Eucalliacidae)
FIGURE 2. Lithstratigraphic division of the Moeshima Silt, Moeshima Shell and Shinjima Shirasu beds (modified from Yamanaka et al. 2010; Moriwaki et al. 2017), and columns showing the present study. Some 14C dates reported by Kameyama et al. (2005) and Yamanaka et al. (2010) were not calibrated, and those that had been obtained from molluscan shells were adjusted against Marine20 (Heaton et al. 2020) using CALIB8.2 software.
FIGURE 3 in Fossil decapods from the Upper Quaternary in Shinjima Island in Kagoshima Kyushu, Japan, and description of a new species of ghost shrimp (Axiidea Eucalliacidae)
FIGURE 3. Calliax nishiki sp. nov. A, MFM142024, holotype, P1 left chela; A1, outer lateral view; A2, inner lateral view; A3, upper view; A4, lower view. B, MFM142025, paratype, P1 left chela; B1, outer lateral view; B2, inner lateral view; B3, upper view; B4, lower view. C, MFM142026, paratype, P1 right chela, outer lateral view. D, MFM142027, paratype, P1 left chela, outer lateral view. E, MFM142028, paratype, P1 right chela, outer lateral view. F, MFM142029, paratype, P1 right chela, outer lateral view. G, MFM142030, paratype P1 right chela, outer lateral view. H, MFM142031, paratype, P1 right dactylus; H1, outer lateral view; H2, inner lateral view; H3, upper view; H4, lower view. I, MFM142032, paratype, P1 left dactylus; I1, outer lateral view; I2, inner lateral view; I3, upper view; I4, lower view. J, MFM142033, paratype, P1 right dactylus; J1, outer lateral view; J2, inner lateral view; J3, upper view; J4, lower view. K, MFM142034, paratype, P1 left carpus, outer lateral view. L, MFM142035, paratype, P1 right carpus, outer lateral view. M, MFM142036, paratype, P1 left carpus, outer lateral view. N, MFM 142037, paratype, P1 left carpus, merus and ischium, outer lateral view. O, MFM142038, P1 right merus, outer lateral view. P, MFM142039, P1 left merus, outer lateral view. Q, MFM142040, P1 right merus, outer lateral view. R, MFM142041, P1 right ischium, outer lateral view. S, MFM142042, P1 right ischium, outer lateral view. All scale bars indicate 1.0 mm.
FIGURE 4 in Fossil decapods from the Upper Quaternary in Shinjima Island in Kagoshima Kyushu, Japan, and description of a new species of ghost shrimp (Axiidea Eucalliacidae)
FIGURE 4. Reconstruction of first cheliped of Calliax nishiki sp. nov., based on the type specimens.
FIGURE 6. Decapods from the Moeshima Shell Bed. A–J in Fossil decapods from the Upper Quaternary in Shinjima Island in Kagoshima Kyushu, Japan, and description of a new species of ghost shrimp (Axiidea Eucalliacidae)
FIGURE 6. Decapods from the Moeshima Shell Bed. A–J, Laticallichirus grandis (Karasawa & Goda, 1996); A, 145597, lateral view of left major cheliped; B, MFM145598, lateral view of right major cheliped; C, MFM145599, lateral view of right carpus; D, MFM145600, lateral view of left minor cheliped; E, MFM145601, lateral view of right dactylus; F, MFM145602, lateral view of right dactylus; G, MFM145603, lateral view of right dactylus; H, MFM145604, lateral view of left dactylus; I, MFM145605, lateral view of right merus; J, MFM145606, lateral view of left merus. K, Paguridae gen. et sp. indet., MFM145607, lateral view of fragment of the fixed finger. L, Pagurus cf. megalops (Stimpson, 1858b), MFM 145608, lateral view of left cheliped. M, Ebalia tuberculosa (A. Milne-Edwards, 1873), MFM145612, dorsal view of carapace. N, Myra sp., MFM145613, lateral view of fragment of the merus. O, Philyra cf. syndactyla Ortmann, 1892, MFM145614, lateral view of right cheliped. P, Majidae gen. et sp. indet., MFM145615, dorsal view of fragment of the carapace. Q, Leptomithrax sp., MFM 145616, lateral view of left cheliped. R, Romaleon sp., MFM 145617, lateral view of fragment of the dactylus. S, Charibdis sp. MFM145619, lateral view of fragment of the fixed finger. Scale bars of A–H, K, M, O, Q and S indicate 5.0 mm, and I, J, L, N, P and R indicate 1.0 mm.
Diversification of a polyploid complex: the biogeography and acoustic communication evolution of North American gray treefrogs throughout the Quaternary
<p>Polyploid speciation and whole genome duplications are major drivers of biological diversity. After polyploid species are formed, the interactions between diploid and polyploid lineages may generate additional diversity in novel cytotypes and phenotypes. In anurans, mate choice by acoustic communication is the primary method by which individuals identify their own species and assess suitable mates. As such, the evolution of acoustic signals is an important mechanism for contributing to reproductive isolation and diversification in this group. The North American gray treefrog complex, consisting of the diploid Hyla chrysoscelis and the tetraploid Hyla versicolor, has long been used to study reproductive isolation and research on this system has consistently driven this field forward. Here, we estimate the biogeographic history of this group, focusing specifically on the geographic origin of whole genome duplication and the expansion of lineages out of refugia following climate oscillations and retreats of the Laurentide ice sheet. We then test for lineage-specific differences in mating signals by applying comparative methods to a large acoustic data set collected over 52 years that includes >1500 individual frogs. Finally, we expand upon our results in light of recent estimates of the complex's genomic evolution to describe the history of diversification in gray treefrogs throughout the Quaternary.</p>
Data from: Estimating the molecular evolutionary rates of mitochondrial genes referring to Quaternary Ice Age events with inferred population expansions and dispersals in Japanese Apodemus
Background: Determining reliable evolutionary rates of molecular markers is essential in illustrating historical episodes with phylogenetic inferences. Although emerging evidence has suggested a high evolutionary rate for intraspecific genetic variation, it is unclear how long such high evolutionary rates persist because a recent calibration point is rarely available. Other than using fossil evidence, it is possible to estimate evolutionary rates by relying on the well-established temporal framework of the Quaternary glacial cycles that would likely have promoted both rapid expansion events and interisland dispersal events. Results: We examined mitochondrial cytochrome b (Cytb) and control region (CR) gene sequences in two Japanese wood mouse species, Apodemus argenteus and A. speciosus, of temperate origin and found signs of rapid expansion in the population from Hokkaido, the northern island of Japan. Assuming that global warming after the last glacial period 7–10 thousand years before present (kyr BP) was associated with the expansion, the evolutionary rates (sites per million years, myr) of Cytb and CR were estimated as 11–16% and 22–32%, respectively, for A. argenteus, and 12–17% and 17–24%, respectively, for A. speciosus. Additionally, the significant signature of rapid expansion detected in the mtDNA sequences of A. speciosus from the remaining southern main islands, Honshu, Shikoku, and Kyushu, provided an estimated Cytb evolutionary rate of 3.1%/site/myr under the assumption of a postglacial population expansion event long ago, most probably at 130 kyr BP. Bayesian analyses using the higher evolutionary rate of 11–17%/site/myr for Cytb supported the recent demographic or divergence events associated with the Last Glacial Maximum. However, the slower evolutionary rate of 3.1%/site/myr would be reasonable for several divergence events that were associated with glacial periods older than 130 kyr BP. Conclusions: The faster and slower evolutionary rates of Cytb can account for divergences associated with the last and earlier glacial maxima, respectively, in the phylogenetic inference of murine rodents. The elevated evolutionary rate seemed to decline within 100,000 years.
Data from: Biogeography of scorpions in the Pseudouroctonus minimus complex (Vaejovidae) from south-western North America: implications of ecological specialization for pre-Quaternary diversification
Aim: The aim of this study was to assess the impact of pre-Quaternary tectonics and orogeny relative to that of Pleistocene climate change on diversification within the Pseudouroctonus minimus complex, a group of vaejovid scorpions with stenotopic habitat requirements. Location: South-western North America (United States and Mexico). Methods: Multilocus sequence data (1899 base pairs from two mitochondrial and two nuclear genes) were generated from 65 samples of scorpions in the minimus complex. Phylogeographical structure within the minimus complex was explored using model-based phylogenetic methods and a general mixed Yule coalescent model to identify independent geographical clusters. A time-calibrated multilocus species tree was reconstructed using a multispecies coalescent approach. Ancestral areas were estimated at divergence events across the tree using a probabilistic Bayesian approach. Results: Extensive geographical structure was evident within two well-supported clades. These clades probably diverged over 25 million years ago (Ma), based on estimated mean divergence dates, followed by 14 divergences in the Miocene (25–5 Ma) and 4 divergences in the Pliocene and Pleistocene (< 5 Ma). The ancestral origin of the minimus complex was reconstructed to be across California and the Mexican Highlands. The Chihuahuan Desert was colonized twice from the Mexican Highlands, and one dispersal event occurred from the Mexican Highlands back to California. Main conclusions: Spatial and temporal patterns of evolution in the minimus complex support predictions that stenotopy promoted pre-Quaternary diversification. Miocene and Pliocene geomorphology, perhaps in concert with climate change, induced allopatric divergence across the heterogeneous landscape of south-western North America. Stenotopic scorpions such as the minimus complex provide a model for exploring correlations between Earth history and biological diversification.
Data from: Geological and climatic changes in quaternary shaped the evolutionary history of Calibrachoa heterophylla, an endemic South-Atlantic species of petunia
Background: The glacial and interglacial cycles that characterized the Quaternary greatly affected the distribution and genetic diversity of plants. In the Neotropics, few phylogeographic studies have focused on coastal species outside of the Atlantic Rainforest. Climatic and sea level changes during the Quaternary played an important role in the evolutionary history of many organisms found in coastal regions. To contribute to a better understanding of plant evolution in this environment in Southern South America, we focused on Calibrachoa heterophylla (Solanaceae), an endemic and vulnerable wild petunia species from the South Atlantic Coastal Plain (SACP). Results: We assessed DNA sequences from two cpDNA intergenic spacers and analyzed them using a phylogeographic approach. The present phylogeographic study reveals the influence of complex geologic and climatic events on patterns of genetic diversification. The results indicate that C. heterophylla originated inland and subsequently colonized the SACP; the data show that the inland haplogroup is more ancient than the coastal one and that the inland was not affected by sea level changes in the Quaternary. The major diversification of C. heterophylla that occurred after 0.4 Myr was linked to sea level oscillations in the Quaternary, and any diversification that occurred before this time was obscured by marine transgressions that occurred before the coastal sand barrier's formation. Results of the Bayesian skyline plot showed a recent population expansion detected in C. heterophylla seems to be related to an increase in temperature and humidity that occurred at the beginning of the Holocene. Conclusions: The geographic clades have been formed when the coastal plain was deeply dissected by paleochannels and these correlate very well with the distributional limits of the clades. The four major sea transgressions formed a series of four sand barriers parallel to the coast that progressively increased the availability of coastal areas after the regressions and that may have promoted the geographic structuring of genetic diversity observed today. The recent population expansion for the entire species may be linked with the event of marine regression after the most recent sea transgression at ~5 kya.
Data from: Influence of late Quaternary climate change on present patterns of genetic variation in valley oak, Quercus lobata Née
Phylogeography and ecological niche models (ENMs) suggest that late Quaternary glacial cycles have played a prominent role in shaping present population genetic structure and diversity, but have not applied quantitative methods to dissect the relative contribution of past and present climate vs. other forces. We integrate multilocus phylogeography, climate-based ENMs and multivariate statistical approaches to infer the effects of late Quaternary climate change on contemporary genetic variation of valley oak (Quercus lobata Née). ENMs indicated that valley oak maintained a stable distribution with local migration from the last interglacial period (~120 ka) to the Last Glacial Maximum (~21 ka, LGM) to the present compared with large-scale range shifts for an eastern North American white oak (Quercus alba L.). Coast Range and Sierra Nevada foothill populations diverged in the late Pleistocene before the LGM [104 ka (28–1622)] and have occupied somewhat distinct climate niches, according to ENMs and coalescent analyses of divergence time. In accordance with neutral expectations for stable populations, nuclear microsatellite diversity positively correlated with niche stability from the LGM to present. Most strikingly, nuclear and chloroplast microsatellite variation significantly correlated with LGM climate, even after controlling for associations with geographic location and present climate using partial redundancy analyses. Variance partitioning showed that LGM climate uniquely explains a similar proportion of genetic variance as present climate (16% vs. 11–18%), and together, past and present climate explains more than geography (19%). Climate can influence local expansion–contraction dynamics, flowering phenology and thus gene flow, and/or impose selective pressures. These results highlight the lingering effect of past climate on genetic variation in species with stable distributions.
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.