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.
609
datasets available to search
ShareScore release 0.9.0
Dataset results
609 results for “morphometric analysis”
Figure 1. Landmarks and curves selection. A. Fore wing. B. Hind wing. C in Geometric morphometric analysis of Eysarcoris guttiger, E. annamita and E. ventralis (Hemiptera: Pentatomidae)
Figure 1. Landmarks and curves selection. A. Fore wing. B. Hind wing. C. Pygophore.
Figure 3. PCA analysis. A. Fore wing. B. Hind wing. C in Geometric morphometric analysis of Eysarcoris guttiger, E. annamita and E. ventralis (Hemiptera: Pentatomidae)
Figure 3. PCA analysis. A. Fore wing. B. Hind wing. C. Pygophore.
Figure 4. A in Further geometric morphometric analysis on the genus Eysarcoris (Hemiptera: Pentatomidae) from China
Figure 4. A dendogram showing the relationship of the eight species of Eysarcoris.
Morphometric analysis of lungfish endocasts elucidates early dipnoan palaeoneurological evolution
Open the record for dataset details and reuse information.
Data from: Morphometric analysis of inter- and intraspecific variation in the Cambrian helcionelloid mollusc Mackinnonia
Open the record for dataset details and reuse information.
Effects of taphonomic deformation on geometric morphometric analysis of fossils: a case study using the dicynodont Diictodon feliceps (Therapsida, Anomodontia)
Open the record for dataset details and reuse information.
Morphometric analysis of the Late Cretaceous Placenticeras of Alabama, USA: Sexual dimorphism, allometry, and implications for taxonomy
Open the record for dataset details and reuse information.
A genomic and morphometric analysis of alpine bumblebees: Ongoing reductions in tongue length but no clear genetic component
Open the record for dataset details and reuse information.
Why the long teeth? Morphometric analysis suggests different selective pressures on functional occlusal traits in Plio-Pleistocene African suids
Open the record for dataset details and reuse information.
Data from: Morphometric analysis of the conodont Chiosella timorensis (Nogami) from the early Anisian of Romania and China, and its significance for the definition of the Olenekian-Anisian Boundary
Open the record for dataset details and reuse information.
Data from: A 3D geometric morphometric analysis of the bovid distal humerus, with special reference to Rusingoryx atopocranion (Pleistocene, Eastern Africa)
Open the record for dataset details and reuse information.
Geometric morphometric wing analysis represents a robust tool to identify female mosquitoes (Diptera: Culicidae) in Germany
Open the record for dataset details and reuse information.
Data from: Morphometric analysis of Skiagia-plexus acritarchs from the early Cambrian of North Greenland
Open the record for dataset details and reuse information.
Fig. 5. Correlation between the fibers diameters and body weight from 300 in Morphological and morphometric analysis of skeletal muscle between male and female young adult Colossoma macropomum (Characiformes: Serrasalmidae)
Fig. 5. Correlation between the fibers diameters and body weight from 300 days old Colossoma macropomum. The fibers diameters are showed by class: circle (<20 µm), triangle (20 to 50 µm) and square (>50 µm).
Fig. 1 in Morphological and morphometric analysis of skeletal muscle between male and female young adult Colossoma macropomum (Characiformes: Serrasalmidae)
Fig. 1. Muscle tissue organization in Colossoma macropomum. A. Multinucleated fibers with peripheral nuclei (arrow). Longitudinal section. HE. (Bar = 25 μm). B. Nuclei located at the periphery of the muscle fiber (arrow). Transverse section. HE. (Bar = 50 μm). C. Fascicle organized in perimysium and endomysium. Transverse section. HE. (Bar = 100 μm). D. Connective tissue surrounding the endomysium (dotted arrow) and perimysium (black arrow). Transverse section. Masson trichrome. (Bar = 50 μm). E. Mobilization of cells in the muscle fiber insertion in connective tissue (black arrow), many nuclei are observed. Longitudinal section. HE. (Bar = 50 μm). F. Sarcomere with striations along the muscle fiber. Longitudinal section. HE. (Bar = 25 μm).
Fig. 4 in Morphological and morphometric analysis of skeletal muscle between male and female young adult Colossoma macropomum (Characiformes: Serrasalmidae)
Fig. 4. Frequency of muscle fibers from 300 days old Colossoma macropomum. Significant differences (*) represent the differences between the animal groups according to body weight, 165 to 300 g (black) and 976 to 1,250 g (gray) in each class by ANOVA one-way supplemented by Tukey's test (P<0.05).
Fig. 3. A in Morphological and morphometric analysis of skeletal muscle between male and female young adult Colossoma macropomum (Characiformes: Serrasalmidae)
Fig. 3. A. Cellular apoptosis (black arrow). Transverse section. Masson trichrome. (Bar = 25 μm). B. Detail of the nerve (black circle). Transverse section. Masson trichrome. (Bar = 50 μm).
Geometric morphometric analysis of Protoconites minor from the Cambrian (Terreneuvian) Yanjiahe Formation in Three Gorges, South China
<p>The Ediacaran to Cambrian transition is a critical interval of time during which major evolutionary changes occurred. Recently, abundant <em>Protoconites minor</em> have been recovered from the silty shales of the lower Cambrian Yanjiahe Formation (Terreneuvian, Fortunian – Stage 2) in the Three Gorges area of South China. These fossils represent an important ecological diversification of macroscopic organisms at the onset of the Cambrian. <em>Protoconites minor</em> is a probable cnidarian-grade organism preserved by carbon compression. Herein, geometric morphometric analyses are applied to crack out specimens of <em>P. minor</em> to reveal any cryptic morphological details that may have implications for their morphological diversity, ontogenetic processes, and taxonomic identification. These statistical analyses reveal a strong relationship between size and shape, which indicates that the overall shape of <em>P. minor</em> was mainly controlled by allometric growth. The smaller specimens are generally wider at the anterior, and more commonly have straight-sides. Larger individuals tend to be narrower at the anterior, with bending more common. Our analyses demonstrate that there are transitional forms between larger, strongly bent specimens and smaller, straight specimens, suggesting that the assemblage likely consists of a single species.</p>
Data from: Morphometric analysis and taxonomic revision of Anisopteromalus Ruschka (Hymenoptera: Chalcidoidea: Pteromalidae) – an integrative approach
We use an integrative taxonomic approach to revise the genus Anisopteromalus. In particular, we apply multivariate ratio analysis (MRA), a rather new statistical method based on principal component analysis (PCA) and linear discriminant analysis (LDA), to numerous body measurements and combine the data with those from our molecular analysis of Cytb and ITS2 genetic markers (on a subset of species) and all available published data on morphology, karyology, behavior, host associations, and geographic distribution. We demonstrate that the analysis of quantitative characters using MRA plays a major role for the integration of name-bearing types and thus for the association of taxa with names. Six species are recognized, of which two are new: A. cornis Baur sp. n. and A. quinarius Gokhman & Baur sp. n. For Anisopteromalus calandrae (Howard), a well-known, cosmopolitan parasitoid of stored-product pests, we have selected a neotype to foster continuity and stability in the application of this important name. The species was sometimes confused with the related A. quinarius sp. n., another cosmopolitan species that is frequently encountered in similar environments. We also show that several species originally described or later put under Anisopteromalus actually belong to different genera: Cyrtoptyx camerunus (Risbec) comb. n.; Meraporus glaber (Szelényi) comb. n.; Dinarmus schwenkei (Roomi, Khan & Khan) comb. n. Neocatolaccus indicus Ayyar & Mani is confirmed as a junior synonym of Oxysychus sphenopterae (Ferrière) syn. n. and Anisopteromalus calandrae brasiliensis (Domenichini) stat. rev. must be considered as a valid but doubtful taxon.
Data from: Geometric morphometric analysis applied to theropod tracks from the lower Cretaceous (Berriasian) of Spain
Geometric morphometric methods applied to theropod tracks from the Huérteles Formation (Berriasian, Spain) are here shown to be invaluable for drawing comparisons between theropod tracks with different preservation modes (true tracks, shallow undertracks and natural casts) or differing in the preservation of anatomical features (e.g. digital pads). Principal components analysis and thin-plate spline methods can quantitatively distinguish between the broad groups of tracks in a sample and establish the main differences between them. These methods offer a promising approach for estimating ichnodiversity, achieved by evaluating just the morphology of the tracks independent of other factors such as size. The theropod tracks of the Huérteles Formation can be classified into two broad groups: minute-to-medium-sized gracile theropod tracks (Kalohipus bretunensis) and medium-to-large-sized robust theropod tracks (Iberosauripus). The presence of a third group of more gracile medium-to-large-sized theropod tracks (Megalosauripus) cannot be proven with certainty on the basis of the current data. These results indicate that the theropod ichnodiversity of the Huérteles Formation is probably lower than that estimated by means of conventional methods alone (e.g. qualitative description of the tracks) and that many of the described theropod morphotypes may represent extramorphological or ontogenetic variations of other morphotypes.
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.