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213 results for “Geometric morphometric analysis”
Data from: Taxonomic and evolutionary pattern revisions resulting from geometric morphometric analysis of Pennsylvanian Neognathodus conodonts, Illinois Basin
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Geometric morphometric analysis of Protoconites minor from the Cambrian (Terreneuvian) Yanjiahe Formation in Three Gorges, South China
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Data from: Geometric morphometric analysis applied to theropod tracks from the lower Cretaceous (Berriasian) of Spain
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Data from: Crowdsourced geometric morphometrics enable rapid large-scale collection and analysis of phenotypic data
1. Advances in genomics and informatics have enabled the production of large phylogenetic trees. However, the ability to collect large phenotypic datasets has not kept pace. 2. Here, we present a method to quickly and accurately gather morphometric data using crowdsourced image-based landmarking. 3. We find that crowdsourced workers perform similarly to experienced morphologists on the same digitization tasks. We also demonstrate the speed and accuracy of our method on seven families of ray-finned fishes (Actinopterygii). 4. Crowdsourcing will enable the collection of morphological data across vast radiations of organisms, and can facilitate richer inference on the macroevolutionary processes that shape phenotypic diversity across the tree of life.
Supplementary material 3 from: Ren J, Bai M, Yang X-K, Zhang R-Z, Ge S-Q (2017) Geometric morphometrics analysis of the hind wing of leaf beetles: proximal and distal parts are separate modules. ZooKeys 685: 131-149. https://doi.org/10.3897/zookeys.685.13084
Coordinates data of landmarks. :
Figure 4 from: Ren J, Bai M, Yang X-K, Zhang R-Z, Ge S-Q (2017) Geometric morphometrics analysis of the hind wing of leaf beetles: proximal and distal parts are separate modules. ZooKeys 685: 131-149. https://doi.org/10.3897/zookeys.685.13084
Figure 4 - Modularity test results. A The hypothesized partition: proximal part landmarks 1-6, 23, 24, and 26–36 and distal part landmarks 7–22, 25; different colour presents different modules B The partition with minimal covariance in all evaluated 104 partitions by RV coefficient C The partition with minimal covariance in all evaluated 106 partitions by RV coefficient.
Figure 2 from: Ren J, Bai M, Yang X-K, Zhang R-Z, Ge S-Q (2017) Geometric morphometrics analysis of the hind wing of leaf beetles: proximal and distal parts are separate modules. ZooKeys 685: 131-149. https://doi.org/10.3897/zookeys.685.13084
Figure 2 - PCA and CVA results. A Centroid size graph of hind wing landmarks (Procrustes fit) B PCA results, the shape changes associated with the first three PCs: the relative size of the apical area which could be considered the main feature (variance contribution ratio was 45.01%) to influence of the overall variance of the hind wing, the changes of cross vein cv in the middle area (variance contribution ratio was 12.39%), and relative size of the anal area size (variance contribution ratio was 10.56%) C CVA results, the axis of CV1 and CV2 presented the first two large shape variance of all variance; points with different colours indicated different subtribes' specimens; the ellipse is presented as an equal-frequency ellipse with a given probability level of 90%, which contains approximately 90% of the data points.
Figure 1 from: Ren J, Bai M, Yang X-K, Zhang R-Z, Ge S-Q (2017) Geometric morphometrics analysis of the hind wing of leaf beetles: proximal and distal parts are separate modules. ZooKeys 685: 131-149. https://doi.org/10.3897/zookeys.685.13084
Figure 1 - Leaf beetle hind wing (Chrysomela populi Linnaeus), with landmark locations (the dot with number), vein nomenclature and regional division. The nomenclature of the wing venation follows that of Kukalová-Peck & Lawrence (1993, 2004). Radial area: green, central area: blue, medial area: purple, anal area: yellow, apical (folding) area: red. Proximal part landmarks 1–6, 23, 24, and 26–36 mainly include radial, medial, and anal areas; distal part landmarks 7–22 and 25 include the central area, radial cell, and apical area. Abbreviations: Costa (C), Subcosta (Sc), Subcosta Anterior (ScA), Subcosta Posterior (ScP), Radius Anterior (RA), Radius Posterior (RP), Radial cross veins (r3, r4), Media Posterior (MP), Radio-medial cross veins (rp-mp1, rp-mp2), medial cross vein (cv), Cubitus Anterior (CuA), Medio-cubital Cross-vein or Arculus (mp-cua), Anal Anterior (AA), Anal posterior (AP). "+" indicates fused veins. The sub-number of veins reflects vein branches.
Figure 3 from: Ren J, Bai M, Yang X-K, Zhang R-Z, Ge S-Q (2017) Geometric morphometrics analysis of the hind wing of leaf beetles: proximal and distal parts are separate modules. ZooKeys 685: 131-149. https://doi.org/10.3897/zookeys.685.13084
Figure 3 - PLS analysis results. A Scatter plot of the PLS1 of two blocks B Shape changes associated with the first PLS axes of two blocks: each diagram shows the block change along the PLS1 in the positive or negative direction, corresponding to Figure 3A.
Fig. 1 in Geometric morphometric analysis of cyclical body shape changes in color pattern variants of Cichla temensis Humboldt, 1821 (Perciformes: Cichlidae) demonstrates reproductive energy allocation
Fig. 1. Configuration of landmarks (red dot within yellow circles) as applied to all color pattern variation (CPV) grades of Cichla temensis. (1) the anterior point of the skull; (2) the anterior edge of the base of the first dorsal spine; (3) the center of the base of the 10 th dorsal spine; (4) the base of the first long ray of the second dorsal fin; (5) the base of the 9 th ray of the second dorsal fin; (6) the posterior point of termination of the second dorsal fin; (7) the posterior base of the anal fin; (8) the base of the 7th anal fin ray; (9) the anterior insertion of the anal fin; (10) the cloaca; (11) the ventral termination of the scale row emanating from the insertion of the 10th dorsal spine; (12) the ventral termination of the scale row emanating from the anterior point of the insertion of the pelvic fin.
Fig. 2 in Geometric morphometric analysis of cyclical body shape changes in color pattern variants of Cichla temensis Humboldt, 1821 (Perciformes: Cichlidae) demonstrates reproductive energy allocation
Fig. 2. Thin-plate-spline deformation grids depicting (a) overall body shape differences between extremes of CPV grades (magnified 3x); (b) the increase in area at the bases of the second dorsal and anal fins between extremes of CPV grades (magnified 3x).
Fig. 4 in Geometric morphometric analysis of cyclical body shape changes in color pattern variants of Cichla temensis Humboldt, 1821 (Perciformes: Cichlidae) demonstrates reproductive energy allocation
Fig. 4. Height to length ratio of color pattern variants of Cichla temensis. The average height/SL ratio increased with CPV grade from a low of 0.2694 for CPV Grade 1 (paca), 0.2725 for CPV Grade 2, 0.2771 for CPV Grade 3 and 0.2822 for CPV Grade 4 (açu).
Fig. 4 in Does size matter for horny beetles? A geometric morphometric analysis of interspecific and intersexual size and shape variation in Colophon haughtoni Barnard, 1929, and C. kawaii Mizukami, 1997 (Coleoptera: Lucanidae)
Fig. 4 Box plots and deformation grids showing size variations and shape deformations in Colophon beetles: female Colophon, male C. haughtoni and male C. kawaii. Size was measured as natural log transformed centroid size (LnCS). Deformation grids show the shape changes related to size from the smallest to the largest individuals. Values in parentheses are the magnification applied to improve visualisation of shape deformations
Figure 8 from: Gushki RS, Lashkari M, Mirzaei S (2018) Identification, sexual dimorphism, and allometric effects of three psyllid species of the genus Psyllopsis by geometric morphometric analysis (Hemiptera, Liviidae). ZooKeys 737: 57-73. https://doi.org/10.3897/zookeys.737.11560
Figure 8 Shape variation along the positive RW2 (a), negative RW1 (b), and positive RW1 (c) extremes for P. machinosus, P. repens, and P. securicola, respectively.
Figure 9 from: Gushki RS, Lashkari M, Mirzaei S (2018) Identification, sexual dimorphism, and allometric effects of three psyllid species of the genus Psyllopsis by geometric morphometric analysis (Hemiptera, Liviidae). ZooKeys 737: 57-73. https://doi.org/10.3897/zookeys.737.11560
Figure 9 Ordination of the group means along the first two canonical variate axes (CV1 and CV2) based on the generalized distance matrix.
Figure 7 from: Gushki RS, Lashkari M, Mirzaei S (2018) Identification, sexual dimorphism, and allometric effects of three psyllid species of the genus Psyllopsis by geometric morphometric analysis (Hemiptera, Liviidae). ZooKeys 737: 57-73. https://doi.org/10.3897/zookeys.737.11560
Figure 7 Scatter plot of the first two principal components of the three species of Ash psyllids. Abbreviations: r = P. repens, s = P. securicola, and m = P. machinosus
Figure 6 from: Gushki RS, Lashkari M, Mirzaei S (2018) Identification, sexual dimorphism, and allometric effects of three psyllid species of the genus Psyllopsis by geometric morphometric analysis (Hemiptera, Liviidae). ZooKeys 737: 57-73. https://doi.org/10.3897/zookeys.737.11560
Figure 6 Superimposed landmarks on the forewing of three species of ash psyllid: A P. machinosus B P. securicola, and C P. repens.
Figure 5 from: Gushki RS, Lashkari M, Mirzaei S (2018) Identification, sexual dimorphism, and allometric effects of three psyllid species of the genus Psyllopsis by geometric morphometric analysis (Hemiptera, Liviidae). ZooKeys 737: 57-73. https://doi.org/10.3897/zookeys.737.11560
Figure 5 Wing size comparison of the forewing of the males and females of P. repens, P. securicola, and P. machinosus. Means with the same letter are not significant from each other.
Figure 4 from: Gushki RS, Lashkari M, Mirzaei S (2018) Identification, sexual dimorphism, and allometric effects of three psyllid species of the genus Psyllopsis by geometric morphometric analysis (Hemiptera, Liviidae). ZooKeys 737: 57-73. https://doi.org/10.3897/zookeys.737.11560
Figure 4 Cluster analysis, using UPGMA method, of the males and females of P. repens, P. securicola, and P. machinosus.
Figure 2 from: Gushki RS, Lashkari M, Mirzaei S (2018) Identification, sexual dimorphism, and allometric effects of three psyllid species of the genus Psyllopsis by geometric morphometric analysis (Hemiptera, Liviidae). ZooKeys 737: 57-73. https://doi.org/10.3897/zookeys.737.11560
Figure 2 Detected shape differences of forewings in the female and male of P. machinosus (a Female b Male), P. securicola (c Female d Male) and P. repens (e Female f Male).
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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.