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.
907
datasets available to search
ShareScore release 0.9.0
Dataset results
907 results for “tadpoles.”
FIGURE 6 in A Redescription Of Anomaloglossus Praderioi (La Marca, 1998) (Anura: Aromobatidae: Anomaloglossinae), With Description Of Its Tadpole And Call
FIGURE 6: Anomaloglossus praderioi, showing intrapopulation variation in dorsal (left) and ventral (right) pattern in preservative. A-A': IRSNB 14404, female 22.7 mm SVL. B-B': IRSNB 14409, male 21.1 mm SVL. C-C': IRSNB 14408, male 20.9 mm SVL. D-D': IRSNB 14413, male 21.9 mm SVL. E-E': IRSNB 14410, male 21.6 mm SVL. F-F': IRSNB 14412, male 21.4 mm SVL. G-G': IRSNB 14406, male 21.3 mm SVL. H-H': IRSNB 14403, male 21.2 mm SVL. I-I': IRSNB 14407, male 20.5 mm SVL. J-J': IRSNB 14405, male 20.9 mm SVL.
FIGURE 8 in A Redescription Of Anomaloglossus Praderioi (La Marca, 1998) (Anura: Aromobatidae: Anomaloglossinae), With Description Of Its Tadpole And Call
FIGURE 8: Vocalisation of Anomaloglossus praderioi. A: Oscillogram. B: Spectrogram (recording of IRSNB 14410). C: Oscillogram. D: Spectrogram (recording of an unvouchered specimen). Arrows indicate another male calling antiphonally. Temperature varied from 19.8-20°C.
Development and survival of tadpoles and metamorphs of Rana temporaria in six boreal lakes in southern Finland
<p>We assessed the effect of water colour on the development of larval amphibian. Tadpoles of Rana temporaria were raised in experimental cages in 6 boreal lakes representing a gradient of water colour.</p> <p>The dataset includes the recording of the environmental variables in the lake during the experiment, morphometric variables for tadpoles and metamorphs, as well as tabulated data for survival analysis during the tadpole stage and to metamorphosis. The experiment took place from May to July 2023 in Evo Natural 2000 site in Finland.</p>
Data from: Transition in sexual system and sex chromosome evolution in the tadpole shrimp Triops cancriformis
Transitions in sexual system and reproductive mode may affect the course of sex chromosome evolution, for instance by altering the strength of sexually antagonistic selection. However, there have been few studies of sex chromosomes in systems where such transitions have been documented. The European tadpole shrimp, Triops cancriformis, has undergone a transition from dioecy to androdioecy (a sexual system where hermaphrodites and males coexist), offering an excellent opportunity to test the impact of this transition on the evolution of sex chromosomes. To identify sex-linked markers, to understand mechanisms of sex determination and to investigate differences between sexual systems, we carried out a genome-wide association study using restriction site-associated DNA sequencing (RAD-seq) of 47 males, females and hermaphrodites from one dioecious and one androdioecious population. We analysed 22.9 Gb of paired-end sequences and identified and scored >3000 high coverage novel genomic RAD markers. Presence–absence of markers, single-nucleotide polymorphism association and read depth identified 52 candidate sex-linked markers. We show that sex is genetically determined in T. cancriformis, with a ZW system conserved across dioecious and androdioecious populations and that hermaphrodites have likely evolved from females. We also show that the structure of the sex chromosomes differs strikingly, with a larger sex-linked region in the dioecious population compared with the androdioecious population.
Data from: De novo assembly of a tadpole shrimp (Triops newberryi) transcriptome and preliminary differential gene expression analysis
Next-generation sequencing techniques, such as RNA sequencing, have provided a wealth of genomic information for nonmodel species. Transcriptomic information can be used to quantify the patterns of gene expression, which can identify how environmental differences invoke organismal stress responses and provide a gauge in predicting species adaptability. In our study, we used RNA sequencing to characterize the first transcriptome from a naupliar tadpole shrimp (Triops newberryi) to identify the genes expressed during the early life history stages and which could be important for future genomic studies. RNA was extracted from naupliar T. newberryi that were reared in a laboratory-controlled setting and in two different water types, a native and a non-native condition. A total of six replicates, three per condition, were sequenced with the Illumina Hi-Seq 2000 achieving 365 M 50-nt reads. High-quality reads were produced and de novo assembly was used to construct a T. newberryi transcriptome that was approximately 24.8 M base pairs. More than 10 000 peptides were predicted from the assembly, and genes were sorted into gene ontology categories. The use of different water conditions allowed for a preliminary differential gene expression analysis in order to compare the changes in gene expression between conditions. There were 299 differentially expressed genes between water conditions that might serve as a focal point for future genomic studies of Triops acclimation to different environments. The Triops transcriptome could serve as vital genomic information for additional studies on Branchiopod crustaceans.
FIGURE 4 in The tadpole of Physalaemus soaresi Izecksohn, 1965 (Anura: Leptodactylidae), with comments on taxonomy, reproductive behavior, and vocalizations
FIGURE 4. Narrowband audiospectrograms (filter bandwidth 133.29 Hz) of the advertisement call of (A) Physalaemus soaresi, recorded at typelocality on 15 November 1997, air temperature 26oC, and (B) Physalaemus olfersii, recorded at Teresópolis, Rio de Janeiro State, on 12 October 1996, air temperature 15oC.
FIGURE 1 in The tadpole of Physalaemus soaresi Izecksohn, 1965 (Anura: Leptodactylidae), with comments on taxonomy, reproductive behavior, and vocalizations
FIGURE 1. Tadpole of Physalaemus soaresi, stage 33 (Gosner 1960). (A) Lateral view, (B) dorsal view, and (C) ventral view.
FIGURE 3 in The tadpole of Physalaemus soaresi Izecksohn, 1965 (Anura: Leptodactylidae), with comments on taxonomy, reproductive behavior, and vocalizations
FIGURE 3. Oscillograms with an expanded timebase to show three cycles of the amplitudemodulated waveform from the middle of the advertisement call of (A) Physalaemus soaresi, and (B) Physalaemus olfersii. The horizontal bar indicates the period of one cycle; notice the different time scales.
FIGURE 3. Leptodactylus vastus tadpole, stage 37 in Description of the tadpole of Leptodactylus vastus (Anura: Leptodactylidae)
FIGURE 3. Leptodactylus vastus tadpole, stage 37 (A) Floor and (B) Roof of the buccopharyngeal cavity (scale = 3.7 mm).
FIGURE 1. Leptodactylus vastus tadpole, stage 37 in Description of the tadpole of Leptodactylus vastus (Anura: Leptodactylidae)
FIGURE 1. Leptodactylus vastus tadpole, stage 37 (Gosner 1960), (A) Lateral view, (B) Dorsal view, (C) Ventral view (scale = 20 mm)
FIGURE 2. Leptodactylus vastus tadpole, stage 37 in Description of the tadpole of Leptodactylus vastus (Anura: Leptodactylidae)
FIGURE 2. Leptodactylus vastus tadpole, stage 37 (A) Oral disk (scale = 2.3 mm), (B) Labial teeth of row A-1 (scale = 0.05 mm).
FIGURE 3 in The tadpole of Hylorina sylvatica (Anura: Cyclorhamphidae) in southern Chile
FIGURE 3. Chondrocranium and hyobranchial apparatus of Hylorina sylvatica (Stage 38, IZUA-2899). (A) dorsal, (B) ventral, and (C) lateral views; (D) hyobranchial apparatus, (E) suprarostral cartilages. Abbreviations: cb I-IV = ceratobranchials I-IV, ch = ceratohyal, cli = cartilago labialis inferior, cls = cartilago labialis superior, cq = commissura quadratoorbitalis, cqa = commissura quadratocranialis anterior, ct = cornua trabeculae, fah = facies articularis hyalis, fcp = foramen caroticum primarium, fcrp = foramen craniopalatinum, fj = foramen jugulare, fm = foramen magnum, fo = foramen opticum, foc = foramen oculomotorium, fov = fenestra ovalis, fpf = frontoparietal fenestra, fpi = foramen perilymphaticum, ft= foramen trochlear, hp = planum hypobranchiale, la = lateral alae, lcp = larval crista parotica, m = cartilago Meckeli, mc = medial corpus, oc = otic capsule, pah = processus anterior hyalis, pal = processus anterolateralis hyalis, paq = pars articularis quadrati, pas = processus ascendes, pm = processus muscularis quadrati, pph = processus posterior hyalis, pq = palatoquadrate, pqe = processus quadratoethmoidalis, pr = pars reuniens, pu = processus urobranchialis, s = spiculum, tc = commissura terminalis, ts = tectum synoticum, ttm = taenia tecti marginalis. Bar = 2mm.
FIGURE 2 in The tadpole of Hylorina sylvatica (Anura: Cyclorhamphidae) in southern Chile
FIGURE 2. Roof (A) and floor (B) of the buccal cavity of Hylorina sylvatica (Stage 41). Medial ridge: stage 27 (C), stage 41 (D). Lingual bud: stage 27 (E), stage 41 (F). Bar 300µm.
FIGURE 1 in The tadpole of Hylorina sylvatica (Anura: Cyclorhamphidae) in southern Chile
FIGURE 1. Tadpole of Hylorina sylvatica (Stage 36, IZUA) (A) Lateral view, (B) dorsal view, (C) oral disc, (D) labial teeth, (E) body lateral view (stage 27), (F) ventral view. Bar A,B,E,F= 5mm; C= 1mm; D= 20µm.
FIGURE 1 in The tadpole of the Narrow-mouthed Frog Microhyla fissipes from Vietnam (Anura: Microhylidae)
FIGURE 1. Left: Tadpole of Microhyla fissipes from Phong Nha — Ke Bang, Quang Binh Province, Vietnam, in life; right: dorsal and lateral aspects of the preserved tadpole at Gosner stage 41 (scale bar = 5 mm). Drawings: Anna Gawor.
FIGURE 3 in Re-description of the tadpole of Pseudopaludicola falcipes (Anura: Leiuperidae), with comments on larval diversity of the genus
FIGURE 3. Scatterplot of factor scores from first two principal component axes for the described tadpole specimens of P. falcipes (circles), and those of P. boliviana (triangle) reported by Kehr and Schaefer (2005). Three aggregations are observed, the less developed P. boliviana tadpoles (at right), the rest of P. boliviana tadpoles (from Kehr & Schaefer 2005) and the P. falcipes tadpoles used in the present description (al left). The variables that differ appear in the graph: body width at nostrils (BWN), fronto-nasal distance (FN) and narial-ocular distance (NO).
FIGURE 1 in Re-description of the tadpole of Pseudopaludicola falcipes (Anura: Leiuperidae), with comments on larval diversity of the genus
FIGURE 1. Dorsal (a) and lateral (b) views of Pseudopaludicola falcipes tadpole, ZVC-B 11287 from Rivera, Uruguay. Gosner stage 37. Scale line: 5 mm.
FIGURE 2 in Foam-generating behaviour in tadpoles of Leptodactylus latinasus (Amphibia, Leptodactylidae): significance in systematics
FIGURE 2. (a) and (b) Leptodactylus latinasus foam nest in incubation chamber, as seen in El Ceibal, San Pablo, Tucumán, Argentina.
FIGURE 3 in Foam-generating behaviour in tadpoles of Leptodactylus latinasus (Amphibia, Leptodactylidae): significance in systematics
FIGURE 3. Cladogram showing the optimization of the character foam-generating behaviour in tadpoles. Black line: present; light grey line: absent; dark grey line: ambiguity.
FIGURE 1 in Foam-generating behaviour in tadpoles of Leptodactylus latinasus (Amphibia, Leptodactylidae): significance in systematics
FIGURE 1. Leptodactylus latinasus tadpoles with foam washed off in the artificial incubating chamber. The photo cor-
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.