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.
188
datasets available to search
ShareScore release 0.9.0
Dataset results
188 results for “marine biogeography”
Figure 19 in Biogeography of marine tintinnid ciliates (Ciliophora, Tintinnida): a Scale-Dependent Model
Figure 19. Species accumulation curve for tintinnid ciliates diversity in global ocean.
Figure 22 in Biogeography of marine tintinnid ciliates (Ciliophora, Tintinnida): a Scale-Dependent Model
Figure 22. The Whittaker index dependence on the distance (power function).
Figure 21 in Biogeography of marine tintinnid ciliates (Ciliophora, Tintinnida): a Scale-Dependent Model
Figure 21. The Whittaker index values in different water areas.
Figure 17 in Biogeography of marine tintinnid ciliates (Ciliophora, Tintinnida): a Scale-Dependent Model
Figure 17. Species accumulation curve for tintinnid ciliates diversity in the Southern Ocean.
Data from: Validating marine Devonian biogeography: a study in bioregionalization
<p>The Devonian record presents an opportunity to test and validate an existing marine bioregionalisation. This study is the first to use comparative biogeography and phylogenetic data to test Devonian bioregionalisation. Proposed in the 1960's the Old World, Eastern Americas, and Malvinokaffric realms have been the functional standard within marine Devonian Biogeography. Data from 32 published phylogenies of Devonian marine taxa and a database of c.800 occurrences were analysed using phylogenetic software to test for area monophyly. The taxic occurrences within the current database were then tested against total fauna Devonian occurrences with the Palaeobiology Database to indicate differences in sampling. Results indicate that the current Devonian bioregionalisation is not representative of natural areas and requires revision. The result highlights areas that are most robust from which the study makes recommendations to improve the process and diagnosis of Devonian biogeographic areas. We found that legacy issues within palaeontology are evident within the results and their interpretation. The validation of bioregionalisation and process is critical to the advancement of biogeography and palaeontology. The sensitivity of bioregionalisation shows biotic and geographical relationships, how life and earth evolved together, and how geographic bias is evident in scientific process.</p>
Biodiversity, biogeography, and connectivity of polychaetes in the world's largest marine minerals exploration frontier
<p>The abyssal Clarion-Clipperton Zone (CCZ), Pacific Ocean, is an area of commercial importance owing to the growing interest in mining high-grade polymetallic nodules at the seafloor for battery metals. Research into the spatial patterns of faunal diversity, composition, and population connectivity is needed to better understand the ecological impacts of potential resource extraction. Here, a DNA taxonomy approach is used to investigate regional-scale patterns of taxonomic and phylogenetic alpha and beta diversity, and genetic connectivity, of the dominant macrofaunal group (annelids) across a 6 million km<sup>2</sup> region of the abyssal seafloor. We used a combination of new and published barcode data to study 1866 polychaete specimens using molecular species delimitation. Both phylogenetic and taxonomic alpha and beta diversity metrics were used to analyse spatial patterns of biodiversity. Connectivity analyses were based on haplotype distributions for a subset of the studied taxa. DNA taxonomy identified 291–314 polychaete species from the COI and 16S datasets respectively. Taxonomic and phylogenetic beta diversity between sites were relatively high and mostly explained by lineage turnover. Over half of pairwise comparisons were more phylogenetically distinct than expected based on their taxonomic diversity. Connectivity analyses in abundant, broadly distributed taxa suggest an absence of genetic structuring driven by geographical location. Species diversity in abyssal Pacific polychaetes is high relative to other deep-sea regions. Results suggest that environmental filtering, where the environment selects against certain species, may play a significant role in regulating spatial patterns of biodiversity in the CCZ. A core group of widespread species have diverse haplotypes but are well connected over broad distances. Our data suggest that the high environmental and faunal heterogeneity of the CCZ should be considered in policy decisions such as designating protected areas.</p>
Biodiversity, biogeography, and connectivity of polychaetes in the world's largest marine minerals exploration frontier
Open the record for dataset details and reuse information.
Data from: Validating marine Devonian biogeography: a study in bioregionalization
Open the record for dataset details and reuse information.
Data from: Marine life in a greenhouse world: cephalopod biodiversity and biogeography during the early Late Cretaceous
Two end-member models are proposed to explain marine biotic responses to greenhouse conditions. Global warming and increasing sea level may: (1) promote dispersal of marine species, leading to larger geographic ranges and decreased speciation and biodiversity, or (2) form isolated epicontinental basins that host endemic radiations, leading to smaller geographic ranges and increased speciation and biodiversity. The Cenomanian–Turonian (C–T) interval, marked by greenhouse warming, sea level rise, ocean anoxia, and biotic turnover, presents an opportunity to test these two end-member models. In particular, how cephalopods responded to these global changes has not been clear. A global database of 7,262 cephalopod occurrences was used to evaluate biodiversity changes through the C–T interval. Both species- and genus-level diversity peaked in the Late Cenomanian. The global diversity drop across the C/T boundary was modest; rather, diversity was low during the Middle Cenomanian and Middle Turonian, times of brief cooling. Regional variations in diversity responses may reflect the degree and timing of environmental perturbations within different oceanographic settings. Surprisingly, cephalopod faunas in the European Platform, Western Interior, and South Atlantic all shifted equatorward across the C/T boundary, whereas other regions saw no change in latitudinal distributions. Global generic geographic ranges did not change through the C–T interval, but the percentage of cosmopolitan genera did increase significantly across the C/T, both globally and within the Western Interior and Europe, whereas cosmopolitans dropped in the Pacific and South Atlantic. Neither end-member model for biodiversity change in a greenhouse world is supported for C–T cephalopods, as diversity increased without an associated increase in geographic range. It may be that sea level rise and global warming led to both endemic radiations in epicontinental basins and an increase in cosmopolitan taxa in some regions, demonstrating the importance of combining global and regional scale analyses.
Data from: Early Miocene marine ostracods from southwestern India: implications for their biogeography and the closure of the Tethyan Seaway
<p>Twenty-six genera and 34 species of early Miocene Indian shallow-marine ostracods were examined for taxonomy and paleobiogeography. A new genus <i>Paractinocythereis</i> and new species <i>Costa</i> <i>ponticulocarinata</i> were described. Early Miocene Indian ostracod fauna shows strong affinity to Eocene–Miocene Eastern and Western Tethyan ostracod faunas and Miocene–Recent Indo-Pacific ostracod fauna, supporting the Hopping Hotspot Hypothesis that Tethyan biodiversity hotspot have shifted eastward through Arabia to Indo-Australian Archipelago (IAA) together with concomitant biogeographic shifts of the Tethyan elements. The result also indicated an inverse westward distributional shift in a genus. It is important to note that Paleogene and Miocene shallow-marine ostracods from the IAA region remain poorly investigated, and more fossil ostracod data is needed to better test the Hopping Hotspot Hypothesis.</p>
Fig. 1 in Evolutionary biogeography of the freshwater fish family Anablepidae (Teleostei: Cyprinodontiformes), a marine-derived Neotropical lineage
Fig. 1 Map showing the eight areas selected in the Neotropical region overlaid with the ecoregions defined by Abell et al. (2008). These areas were selected based on Amorim and Costa (2019) and Frota et al. (2019). For details, see the "Materials and methods" section
Fig. 3 in Evolutionary biogeography of the freshwater fish family Anablepidae (Teleostei: Cyprinodontiformes), a marine-derived Neotropical lineage
Fig. 3 Cladograms showing the results of Brooks Parsimony Analysis and the historical relationships among the selected areas using Anablepidae as a case study. The two most parsimonious general area cladograms are represented by a and b. Note that the positions of the Iguaçu River basin and Southeastern Brazil are decisive for biogeographic interpretations. The strict consensus cladogram is
Supplementary material 1 from: Jażdżewska AM, Corbari L, Driskell A, Frutos I, Havermans C, Hendrycks E, Hughes L, Lörz A-N, Stransky B, Tandberg AHS, Vader W, Brix S (2018) A genetic fingerprint of Amphipoda from Icelandic waters – the baseline for further biodiversity and biogeography studies. In: Brix S, Lörz A-N, Stransky B, Svavarsson J (Eds) Amphipoda from the IceAGE-project (Icelandic marine Animals: Genetics and Ecology). ZooKeys 731: 55–73. https://doi.org/10.3897/zookeys.731.19931
Table S1 : Explanation note: Amphipod and outgroup accession numbers in BOLD, GenBank and station data.
Fig. 4 in The biogeography of non-marine molluscs in the Tuscan Archipelago reveals combined effects of current eco-geographical drivers and paleogeography
Fig. 4 Non-metric multidimensional scaling (NMDS) in RGB (red, green, and blue) color space for Sørensen (βsor) (a), Simpson (βsim) (b), and nestedness indices (βnest) (c) showing land snail presence/ absence in the Tuscan Archipelago using the database of all species except aliens. CAP, Capraia; ELB, Elba; GIA, Giannutri; GIG, Giglio; GOR, Gorgona; MCO, Montecristo; PIA, Pianosa; CER, Cerboli; PAL, Palmaiola; FDG, Formiche di Grosseto; ARG, Monte Argentario
Fig. 5 in The biogeography of non-marine molluscs in the Tuscan Archipelago reveals combined effects of current eco-geographical drivers and paleogeography
Fig. 5 Biogeographical categories of land snail species on islands of the Tuscan Archipelago: (a) including and (b) excluding widespread species
Fig. 1 in The biogeography of non-marine molluscs in the Tuscan Archipelago reveals combined effects of current eco-geographical drivers and paleogeography
Fig. 1 Location of the Tuscan Archipelago in the northern Tyrrhenian Sea, between the Tuscan coast and Corsica
Fig. 6 in The biogeography of non-marine molluscs in the Tuscan Archipelago reveals combined effects of current eco-geographical drivers and paleogeography
Fig. 6 Cluster analysis (a) and non-metric multidimensional scaling (NMDS) in RGB (red, green, and blue) color space (b) for Simpson index (βsimp) showing relationships between Tuscan Archipelago islands and their source pool (Tuscany/Sardo-Corsican complex) considering species of biogeographical interest (SC, Sardo-Corsican species; T, Tuscan species). In cluster analysis, multiscale bootstrap procedure resulted in two different values for each node: on the left,
Fig. 2 in The biogeography of non-marine molluscs in the Tuscan Archipelago reveals combined effects of current eco-geographical drivers and paleogeography
Fig. 2 Cluster analysis for the Sørensen index (βsor) (a all species; b without alien species), Simpson index (βsim) (c all species; d without alien species) and nestedness index (βnest) (e all species; f without alien species). Multiscale bootstrap analysis resulted in two different values for each node: on the left, node support involving the exact number of species in the original dataset; on the right, node support when more resampled species were used. Highly and weakly supported nodes are indicated in black and red, respectively. CAP, Capraia; ELB, Elba; GIA, Giannutri; GIG, Giglio; GOR, Gorgona; MCO, Montecristo; PIA, Pianosa; CER, Cerboli; PAL, Palmaiola; FDG, Formiche di Grosseto; ARG, Monte Argentario
Fig. 3 in The biogeography of non-marine molluscs in the Tuscan Archipelago reveals combined effects of current eco-geographical drivers and paleogeography
Fig. 3 Non-metric multidimensional scaling (NMDS) in RGB (red, green, and blue) color space for Sørensen (βsor) (a), Simpson (βsim) (b), and nestedness indices (βnest) (c) showing land snail presence/ absence in the Tuscan Archipelago using the database of all species. CAP, Capraia; ELB, Elba; GIA, Giannutri; GIG, Giglio; GOR, Gorgona; MCO, Montecristo; PIA, Pianosa; CER, Cerboli; PAL, Palmaiola; FDG, Formiche di Grosseto; ARG, Monte Argentario
FIG. 1 in Biodiversity and biogeography of non-marine Mollusca on the islands of the Southern Ocean
FIG. 1. The islands of the Southern Ocean. Note: Islands within the study area and having land snails are in Roman type. Islands not within the study area but mentioned in text are in italics.
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.