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.
357
datasets available to search
ShareScore release 0.9.0
Dataset results
357 results for “colour patterns”
Abdominal colour patterns of the sand diving spider Ammoxenus amphalodes (Araneae: Gnaphosidae) from South Africa
<p>The two types of abdominal patterns found in <em>Ammoxenus</em> species are discussed, with emphasis on <em>A. amphalodes</em> Dippenaar & Meyer, 1980. With images of live specimens, the two patterns are shown. Within the genus, there is large interspecific similarity, but intraspecific variability regarding the abdominal colour pattern. Due to these variations found species are sometimes wrongly identified.</p>
Uncovering the effects of Müllerian mimicry on the evolution of conspicuousness in colour patterns
Variation in the conspicuousness of colour patterns is observed within and among defended prey species. The evolution of conspicuous colour pattern in defended species can be strongly impaired because of increased detectability by predators. Nevertheless, such evolution of the colour pattern can be favoured if changes in conspicuousness result in Müllerian mimicry with other defended prey. Here, we develop a model describing the population dynamics of a conspicuous defended prey species, and we assess the invasion conditions of derived phenotypes that differ from the ancestral phenotype by their conspicuousness. Such change in conspicuousness may then modify their level of mimicry with the local community of defended species. Derived colour pattern displayed in this focal population can therefore be either exactly similar, partially resembling or completely dissimilar to the local mimicry ring displaying the ancestral colour pattern. We assume that predation risk depends (1) on the number of individuals sharing a given colour pattern within the population, (2) on the occurrence of co-mimetic defended species, and (3) on the availability of alternative edible prey. Using a combination of analytical derivations and numerical simulations, we show that colour patterns that are less conspicuous than the ancestral one are generally favoured within mimicry rings, unless reduced conspicuousness impairs mimicry. By contrast, when a mutation affecting the colour pattern leads to a shift toward a better protected mimicry ring, a more conspicuous colour pattern can be favoured. The selected aposematic pattern then depends on the local communities of defended and edible prey, as well as on the detectability, memorability and level of mimicry of the colour patterns.
Figure 3. Habitus with colour pattern. a in Rediagnosis of Palaemon and differentiation of southern Australian species (Crustacea: Decapoda: Palaemonidae)
Figure 3. Habitus with colour pattern. a, Palaemon dolospina; b, telson of P. dolospina; c, Palaemon intermedius.
Figure 15 in A new subspecies of Сryptocephalus ergenensis Morawitz, 1863 (Coleoptera, Chrysomelidae) from Kazakhstan and significance of colour pattern polymorphism examination
Figure 15. Colour pattern variability in Cryptocephalus apicalis species group. a–i – С. apicalis; j – С. lateralis; k–m – С. ergenensis ergenensis; n–o – С. ergenensis kalbensis ssp. n. (a–i from Warchałowski 1991, slightly modified, others – orig.).
Figures 11–14 in A new subspecies of Сryptocephalus ergenensis Morawitz, 1863 (Coleoptera, Chrysomelidae) from Kazakhstan and significance of colour pattern polymorphism examination
Figures 11–14. Aedeagi of Cryptocephalus (Asionus) spp in lateral and dorsal view. 11 – С. ergenensis ergenensis, West Kazakhstan, Atyrau region, Deukara; 12 – С. ergenensis kalbensis ssp. n., type locality; 13 – С. apicalis, East Kazakhstan, Kalbinsky mt. range, near Nizhniy Tainty; 14 – С. lateralis. Scale bar – 1.0 mm.
Fig. 10. A in Minute Silurian oncocerid nautiloids with unusual colour patterns
Fig. 10. A. Holotype of Pomerantsoceras pollux "var. castor" (Barrande, 1866). Specimen NM−L 571, in lateral (A1) and ventral (A2) views, and detail of the siphuncle (A3); Butovice Na Břekvici Section, Colonograptus colonus Zone, Gorstian, Ludlow. B. Holotype of Pomerantsoceras pollux (Barrande, 1866). Specimen NM−L 570, in lateral view showing diagenetic rupture of the shell (B1); and lateral (B2, B4) and ventral (B3) views. Malá Chuchle, Vyskočilka locality, Testograptus testis, Homerian, Wenlock. Specimens A1, A2, and B1 are coated with ammonium chloride. Scale bars 5 mm.
Fig. 7 in Minute Silurian oncocerid nautiloids with unusual colour patterns
Fig. 7. Pomerantsoceras pollux (Barrande, 1866). Specimen CGU SM 321, in lateral (A, C), ventral (B), and dorsal (D) views. Lochkov, Nad ubikacemi Section, Monograptus latilobus Zone, Ludfordian, Ludlow. Photographed in alcohol.
Fig. 6 in Minute Silurian oncocerid nautiloids with unusual colour patterns
Fig. 6. Pomerantsoceras pollux (Barrande, 1866). Specimen CGU SM 323, the body chamber, in dorsal (A), lateral (B), ventral (C), and lateral (D) views. Lochkov, Nad ubikacemi Section, Monograptus latilobus Zone, Ludfordian, Ludlow. Photographed in alcohol.
Fig. 3 in Minute Silurian oncocerid nautiloids with unusual colour patterns
Fig. 3. Comparison of the smallest and largest nautiloids in Butovice Na břekvici Section, Ludlow, Gorstian, Colonograptus colonus Zone (A) and Lochkov Nad ubikacemi Section, Ludlow, Ludfordian, Monograptus latilobus Zone (B).
Fig. 9 in Minute Silurian oncocerid nautiloids with unusual colour patterns
Fig. 9. Shell malformations in Pomerantsoceras pollux (Barrande, 1866). A. Specimen CGU SM 318 with a false rib at the base of body chamber, in lateral (A1) and ventral (A2) views. B. Specimen CGU SM 316, body chamber with conchal furrow−like malformation, in ventral view. C. Specimen NM−L 571, anomalous septal growth, in lateral view (C1), and detail of youngest phragmocone chamber with a pair of pits, in lateral view (C2). All figured specimens come from Butovice Na Břekvici Section, Colonograptus colonus Zone, Gorstian, Ludlow. Each specimen is coated with ammonium chloride.
Fig. 8 in Minute Silurian oncocerid nautiloids with unusual colour patterns
Fig. 8. Sketches of the colour pattern in Pomerantsoceras pollux (Barrande, 1866). A. Specimen SM 319, Kační Quarry. B. Specimen CGU SM 322, Nad ubikacemi Section. C. Specimen CGU SM 323, Nad ubikacemi Section. D. Specimen CGU SM 321, Nad ubikacemi Section.
Fig. 2 in Minute Silurian oncocerid nautiloids with unusual colour patterns
Fig. 2. Shell size of nautiloids: shell height (axis x), length of body chamber (axis x), and shell length (diameter of circle), Butovice Na břekvici Section, Ludlow, Gorstian, Colonograptus colonus Zone (A) and Lochkov Nad ubikacemi Section, Ludlow, Ludfordian, Monograptus latilobus Zone (B). Data from Barrande (1865–1877) and author's collection. Note that Pomerantsoceras in both assemblages is the smallest nautiloid. The largest present nautiloids, tarpyhcerids Uranoceras and Boionautilus are all closely related taxa, as suggested by Turek (2008).
Fig. 1. A in Minute Silurian oncocerid nautiloids with unusual colour patterns
Fig. 1. A. Distribution of Silurian rocks in the eastern part of the Prague Synform and position of named localities (see Kříž 1992, Röhlich 2007). B. Butovice, Kační Quarry−Na břekvici Section, stratigraphy, graptolite zones, lithology (adopted from Kříž 1992, Kříž et al. 1993) and range of Pomerantsoceras pollux. C. Lochkov, Nad ubikacemi Section, stratigraphy, graptolite zones, lithology and range of Pomerantsoceras pollux (Barrande, 1866). Abbreviations: C. lundgreni, Cyrtograptus lundgreni; C. colonus, Colonograptus colonus; N. kozlow., Neocuculograptus kozlowskii, M., Monograptus; P., Pristiograptus.
Fig. 5 in Minute Silurian oncocerid nautiloids with unusual colour patterns
Fig. 5. Pomerantsoceras pollux (Barrande, 1866). Specimen CGU SM 322, in lateral (A, C), dorsal (B), and ventral (D) views. Lochkov, Nad ubikacemi Section, Monograptus latilobus Zone, Ludfordian, Ludlow. Photographed in alcohol.
Fig. 4 in Minute Silurian oncocerid nautiloids with unusual colour patterns
Fig. 4. Pomerantsoceras pollux (Barrande, 1866). Specimen CGU SM 319, the body chamber, in lateral (A), ventral (B), and dorsal (C) views. Kační Quarry, Testograptus testis Zone, Homerian, Wenlock. Photographed in alcohol.
Fig. 5 in Colour patterns in Early Devonian cephalopods from the Barrandian Area: Taphonomy and taxonomy
Fig. 5. Ptenoceras? sp. Praha−Braník, Pragian, Praha Formation, DvorceProkop Limestone. Specimen NM−L 7644, juvenile shell with preserved colour pattern (A, B) and schematic outlines of colour pattern (C, D), lateral (A) and ventral (B) views.
Fig. 3 in Colour patterns in Early Devonian cephalopods from the Barrandian Area: Taphonomy and taxonomy
Fig. 3. Colour patterns in Devonian cephalopods Ptenoceras. A. Ptenoceras nudum (Barrande, 1865). Praha−Hlubočepy, Dalejan, Daleje−Třebotov Formation, Třebotov Limestone. Specimen NM−L 40727 in lateral (A1) and ventral (A2) views, showing colour bands—zigzags on ventral side of the whorl and a trace of colour band ventrolaterally (indicated by arrow). B. Ptenoceras alatum (Barrande, 1865). Koněprusy, Pragian, Praha Formation, Koněprusy Limestone. Specimen NM−L 40726, in lateral (B1) and frontal (B2) views, exhibiting bifurcating colour bands oblique to axis of the shell.
Fig. 1 in Colour patterns in Early Devonian cephalopods from the Barrandian Area: Taphonomy and taxonomy
Fig. 1. Adapertural part of orthoceratoid body chamber with preserved colour pattern; counterpart, specimen NM−L 38470. Koněprusy, Klonk section, Lower Devonian, Lochkovian, Lochkov Formation, Monograptus uniformis Zone, probably interbed 20/21 (see Chlupáč et al. 1972). A. Photograph. B. Schematic drawing.
Fig. 6 in Colour patterns in Early Devonian cephalopods from the Barrandian Area: Taphonomy and taxonomy
Fig. 6. False colour pattern in Pseudorutoceras bolli Barrande, 1866. NM−L 449 from Praha−Hlubočepy, Dalejan, Daleje−Třebotov Formation, Třebotov Limestone. A. A part of the body chamber with original Barrande's inscription noticing "test", aperture up. B. The same specimen in opposite orientation, artificially abraded adapical part with wavy dark lines; ventrolateral view.
Fig 2 in Colour patterns in Early Devonian cephalopods from the Barrandian Area: Taphonomy and taxonomy
Fig 2. Adapertural part of orthoceratoid body chamber NM−L 38471 with preserved colour pattern; counterpart. Koněprusy, Klonk section, Lower Devonian, Lochkovian, Lochkov Formation, Monograptus uniformis Zone, interbed 20/21 (see Chlupáč, Jaeger and Zikmundová 1972). A. Photograph. B. Schematic drawing; axis of the shell is indicated.
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.