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.
3,538
datasets available to search
ShareScore release 0.9.0
Dataset results
3,538 results for “Lizard”
Figure 1 in Integrative taxonomy of the gymnophthalmid lizard Neusticurus rudis Boulenger, 1900 identifies a new species in the eastern Pantepui region, north-eastern South America
Figure 1. (a) Map of the Pantepui region showing the distributions of the Neusticurus rudis clade (red dots) and the N. arekuna clade (green dots). The white rectangle corresponds to the area enlarged in (b). (b) Distributions of the Neusticurus rudis clade (red dots) and the N. arekuna clade (green dots) with localities numbered as follows: (1) Mount Roraima, Venezuela/Guyana/Brazil (2) Maringma-tepui, Guyana; (3) Mount Ayanganna, Guyana; (4) Mount Wokomung, Guyana; (5) Kaieteur National Park, Guyana; (6) Iwokrama Mountains, Guyana; (7) Angasima-tepui, Venezuela; (8) Pacaraima, Brazil; (9) Abakapá-tepui, Venezuela; (10) Chivatón, Venezuela; (11) Auyán-tepui, Venezuela; (12) Salto El Danto/La Escalera, Venezuela. Coloured arrows highlight type localities of N. rudis (light brown) and N. arekuna sp. nov. (light blue). Circles whose bottom half is light brown depict the known localities of N. rudis sensu stricto; circles whose bottom half is light blue depict the known localities of N. arekuna sp. nov. sensu stricto. The blue question mark indicates an undetermined population from Guaiquinima-tepui, Venezuela (Donnelly and Myers 1991; Mägdefrau et al. 1991; Mägdefrau and Mägdefrau 1994; no specimen examined).
Figure 2 in Mitochondrial genetic variation within and between Holbrookia lacerata lacerata and Holbrookia lacerata subcaudalis, the spot-tailed earless lizards of Texas
Figure 2. Bayesian phylogeny of whole mitochondrial genomes from Holbrookia lacerata lacerata and H. l. subcaudalis, with H. maculata and H. propinqua as outgroup taxa. Numerical values are Bayesian posterior probabilities; all other nodes represent values> 0.95. The scale bar represents percent genetic divergence.
Figure 1 in Mitochondrial genetic variation within and between Holbrookia lacerata lacerata and Holbrookia lacerata subcaudalis, the spot-tailed earless lizards of Texas
Figure 1. Sampling map of the focal taxa (Holbrookia lacerata lacerata and H. l. subcaudalis) and outgroup taxa (H. maculata and H. propinqua). The sampling ranges for the nominal taxa are representative of their current distributions. The historical distribution of H. lacerata is represented by the dotted line, while the Balcones Fault/Escarpment, the natural biogeographic barrier between the two subspecies, is represented by the solid black line.
Figure 5 in Integrative taxonomy of the gymnophthalmid lizard Neusticurus rudis Boulenger, 1900 identifies a new species in the eastern Pantepui region, north-eastern South America
Figure 5. Variation of hemipenial bodies. (a) Neusticurus rudis sensu stricto from Maringma-tepui, Guyana (IRSNB18432). (b) N. rudis UCS 2 from Iwokrama, Guyana (IRSNB18446). (c) N. arekuna sp. nov. from Pacaraima, Brazil (MZUSP106223). (d) N. arekuna UCS 1 from Abakapá-tepui, Venezuela (IRSNB18150). Photos PMSN.
Figure 2 in Parthenogenetic Darevskia lizards mate frequently if they have the chance: a quantitative analysis of copulation marks in a sympatric zone
Figure 2. Variation of snout–vent length (SVL, in mm) according to the number of copulation marks in parthenogenetic females of D. armeniaca from Kuchak (Armenia). Mean values and 0.95 confidence intervals are displayed as well as the raw data with symbols proportional to the number of individuals. Letters between parenthesis on the x-axis indicate the groups according to Duncan posthost tests (p <0.05) after significant ANOVA (see results).
Figure 1 in Parthenogenetic Darevskia lizards mate frequently if they have the chance: a quantitative analysis of copulation marks in a sympatric zone
Figure 1. Representative images of females of Darevskia sp. from Kuchak (Armenia). Left: dorsal view; right: ventral view and scar detail. (a) D. valentini (2n, bisexual); (b) D. armeniaca (2n, parthenogenetic); (c) D. unisexualis (2n, parthenogenetic); (d) D. valentini × D. armeniaca (3n, backcross); (e) D. valentini × D. unisexualis (3n, backcross). Identifications are all supported by genetic data (Freitas et al. in press)
Evolutionary and biogeographical support for species-specific proteins in lizard chemical signals
<p>The species-specific components (SSC) of animal signals can facilitate species recognition and reduce the risks of mismatching and interbreeding. Still, empirical evidence for SSCs in chemical signals is scarce and mostly limited to insect pheromones. Based on the proteinaceous femoral gland secretions of 36 lizard species (Lacertidae), we examine the SSC potential of proteins in lizard chemical signals. By quantitatively comparing the one-dimensional electrophoretic patterns of the protein fraction from femoral gland secretions, we first reveal that protein composition is species-specific, accounting for large part of the observed raw variation, and allowing us to discriminate species on this basis. Secondly, we find increased protein pattern divergence in sympatric, closely related species. Thirdly, lizard protein profiles show a low phylogenetic signal, a recent and steep increase in relative disparity, and a high rate of evolutionary change compared to non-specifically-signal traits (i.e. body size and shape). Together, these findings provide support for the species-specificity of proteins in the chemical signals of a vertebrate lineage.</p> <p>We made available two datasets:</p> <p><strong>rawdata.Rdata</strong> is an R-data file containing a single R-list object called “epg” (which stands for “electrophoretograms”). The list has 7 entries:</p> <ol> <li>$profile The normalised luma values for each sample individual; row names correspond to the species name (6 letter abbreviations) followed by a progressive integer</li> <li>$hpx a progressive number indicating the molecular weight integer corresponding to each luma value in epg$profile</li> <li>$kda the corresponding average molecular weight for each bin (in kDa)</li> <li>$spe a factor indicating the species for each profile row</li> <li>$gel a factor indicating the gel from which the profile was extracted</li> <li>$abso the absorbance value, proxy for protein concentration for each sample</li> <li>$epg.species the geometric mean of the EPG for each species (row names)</li> </ol> <p><strong>gel.zip</strong> is a zipped file with all gel images used to extract individual EPG.</p> <p>All other information and data needed to replicate our analysis are available in the published paper or in reference therein.</p> <p> </p>
Figure 4. Above, digital X in Six species of Amazonian Woodcreepers (Aves: Dendrocolaptidae) preying upon lizards and frogs
Figure 4. Above, digital X-ray of Gonatodes humeralis (USNM 568677) indicating the bones from the gecko skeleton that are more resistant to digestion. Below, histogram indicating the total number and percentage of bones recovered from at least eight geckos preyed upon by six birds. Scale bar 10 mm.
Figure 3 in Six species of Amazonian Woodcreepers (Aves: Dendrocolaptidae) preying upon lizards and frogs
Figure 3. Frog bones (Hylidae?) recovered in the stomach contents of dendrocolaptid bird Xiphocolaptes promeropirhynchus. (A) Premaxilla; (B) maxilla; (C) frontoparietal; (D, E) dentaries; (F–I) indeterminate cranial elements; (J–Q) presacral vertebrae; (J) atlas; (Q) sacrum; (R) scapula; (S) radio-ulna; (T) illium; (U) femur; (V) indeterminate postcranial bones. Scale bar 10 mm.
Figure 2 in Six species of Amazonian Woodcreepers (Aves: Dendrocolaptidae) preying upon lizards and frogs
Figure 2. Sample of gecko bones (Gonatodes humeralis) recovered in the stomach contents of dendrocolaptid birds. (A) Right maxilla; (B) left prefrontal; (C) left postorbitofrontal; (D) frontal; (E) right pterygoid; (F) left dentary; (G) right compound bone + surangular; (H) left and right innominate bone (pelvis); (I) left humerus; (J) ulna; (K) radius; (L) left femur; (M) left tibia. B, C, E, F, G, I, J, K, M recovered from Dendrocincla fuliginosa, A, D, H, L recovered from Dendrocincla merula. Scale bar 10 mm.
Figure 1 in Six species of Amazonian Woodcreepers (Aves: Dendrocolaptidae) preying upon lizards and frogs
Figure 1. Sampling localities along the margin of the rivers Tapajós and Teles Pires. See Table 2 for complete information.
Figure 2 in Natural history of the lizard Enyalius perditus (Squamata: Leiosauridae) from an Atlantic forest remnant in southeastern Brazil
Figure 2. Monthly abundance of E. perditus (bars); mean minimum and maximum monthly temperatures (grey line); and total monthly rainfall (black line) from August 2005 to July 2006 at Parque Estadual Nova Baden. Lambari, State of Minas Gerais, Brazil.
Figure 1 in Natural history of the lizard Enyalius perditus (Squamata: Leiosauridae) from an Atlantic forest remnant in southeastern Brazil
Figure 1. (A) Study area location; (B) Parque Estadual Nova Baden (PENB), in the Municipality of Lambari, State of Minas Gerais, Brazil (Satellite image from Google Earth; accessed 2008).
Figure 2 in Plant consumption in coastal populations of the lizard Tropidurus torquatus (Reptilia: Squamata: Tropiduridae): how do herbivory rates vary along their geographic range?
Figure 2. Cluster dendrogram of 10 populations of the lizard Tropidurus torquatus along the Brazilian coast based on the volumetric proportion of plant consumed. Trancoso, Prado (Bahia State), Guriri, Setiba, Praia das Neves (Espírito Santo State), Grussaí, Jurubatiba, Massambaba, Maricá and Grumari (Rio de Janeiro State).
Figure 1. Map showing the 10 in Plant consumption in coastal populations of the lizard Tropidurus torquatus (Reptilia: Squamata: Tropiduridae): how do herbivory rates vary along their geographic range?
Figure 1. Map showing the 10 restingas from where the lizards Tropidurus torquatus were captured along the Brazilian coast in the states of Bahia (1: Trancoso, 2: Prado), Espírito Santo (3: Guriri, 4: Setiba, 5: Praia das Neves) and Rio de Janeiro (6: Grussaí, 7: Jurubatiba, 8: Massambaba, 9: Maricá, 10: Grumari).
Figure 1 in Feeding habits of the endemic tropical parthenogenetic lizard Cnemidophorus nativo (Teiidae) in a restinga area of northeastern Brazil
Figure 1. Monthly number of isopterans and larvae in relation to total number of consumed prey by Cnemidophorus nativo in the restinga of Guaratiba, Prado, BA, Brazil. Lizard sample sizes for each month are given above the bars.
Figure 1 in Mainland versus island differences in behaviour of Podarcis lizards confronted with dangerous prey: the scorpion Buthus occitanus
Figure 1. (A) Photograph illustrating experimental set-up. The scorpions were tethered by the base of the tail and placed on the ground about 15 cm in front of the lizards, after which the behavioural responses of the lizard towards the prey were noted. (B) Male P. atrata eating a scorpion.
Data and statistical code from: Population differences in the effect of context on personality in an invasive lizard
<p>Within populations, individuals often differ consistently in their average level of behavior (i.e. animal personality), as well as their response to environmental change (i.e. behavioral plasticity). Thus, changes in environmental conditions might be expected to mediate the structure of animal personality traits. However, it is currently not well understood how personality traits change in response to environmental conditions, and whether this effect is consistent across multiple populations within the same species. Accordingly, we investigated variation in personality traits across two ecological contexts in the invasive delicate skink (<i>Lampropholis delicata</i>). Specifically, lizards from three different populations were repeatedly measured for individual activity in group behavioral assays under differing levels of food availability. We found that environmental context had a clear effect on the structure of lizard personality, where activity rates were not repeatable in the absence of food, but were repeatable in the presence of food resources. The difference in repeatability of activity rates across contexts appeared to be largely driven by an increase in among-individual variance when tested in the presence of food resources. However, this was only true for one of the populations tested, with food context having no effect on the expression of personality traits in the other two populations. Our results highlight the important role of environmental context in mediating the structure of animal personality traits and suggest that this effect may vary among populations.</p>
FIGURE 5. A in Morphological diversity and phylogenetic relationships within a South-American clade of iguanian lizards (Liolaemidae: Phymaturus)
FIGURE 5. A—Phymaturus laurenti (MCN 2841). Character 172-0 subdigtal lamellae of fifth toe with smooth surfaces with inconspicuous keels. B—P. antofagastensis FML 1861 (Character 172-1) subdigital lamellae of fifth toe strongly keeled (four to six keels). Scales= 3 mm. C—Corneal surface of parietal eye translucent, P. dorsimaculatus 1569 (character 174-0). Scales= 2 mm. D—Parietal eye with white opaque coloration conspicuous under corneal surface, P. palluma MCN 3131 (character 174- 1). E—Second chinshields widely separated one from the other, P. palluma MCN 3131 (character 177-0). Scales= 5 mm. F— Contact in the midline of second chinshields, P. dorsimaculatusMCN 1569 (character 177-1).
FIGURE 7. A in Morphological diversity and phylogenetic relationships within a South-American clade of iguanian lizards (Liolaemidae: Phymaturus)
FIGURE 7. A—Ossified secondary coracoid fenestra, Phymaturus mallimaccii MCN 1484 (character 56-0).Scale= 3 mm. B— Incomplete rings in the distal third of trachea of P. antofagastensis FML 1861-11 (character 37, continuous character). Scale= 1 mm. C—Scleral ossicles of P. patagonicus MCN 1285 (character 183-1). Scale= 1 mm. D—Lower jaw of Phymaturus extrilidus MCN 2666 exhibiting Meckel´s groove opened (character 192-0) and P. indistinctus MCN 686 with dentary enclosing Meckel´s groove. (character 192-1). Scale= 2 mm. E—Absence of a ceratohyal process in P. extrilidus MCN 2665 (character 186-0). F—With a conspicuous ceratohyal process in P. indistinctus MCN 686 (character 186-2).Scales= 1 mm.
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.