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1,047 results for “Salamanders”
Figure 6 in The giant salamanders (Cryptobranchidae): Part A. palaeontology, phylogeny, genetics, and morphology
Figure 6. An early figure of Japanese giant salamander, Andrias japonicus, showing the dorso-ventrally flattened tail, the very broad head, and massive bulk of the Andrias species. The skeleton has remained almost unchanged for tens of millions of years. Image from G. Mösch, Der Japanische Riesensalaman- der und der fossile Salamander von Oeningen, Neujahrsblatt der NGZH Nr. 89, 1887. Cryptobranchus japoniens Y. de Hoev. (Japanischer Riesensalamander.) Nach einer Photographie gezeichnet, in etwas mehr als 1/3 der natürlichen Grösse.
Figure 5 in Survey techniques for giant salamanders and other aquatic Caudata
Figure 5. Natural rock placed in stream to provide habitat and sampling locations for C. alleganiensis. Image Kenneth Roblee.
Figure 3 in The giant salamanders (Cryptobranchidae): Part A. palaeontology, phylogeny, genetics, and morphology
Figure 3. The Late Oligocene to Early Pliocene (23.0 to 5.3 MYA) species A. scheuchzeri was distributed from Central Europe to the Zaissan Basin on the border of Kazakhstan and China. Fossil room II, Teylers Museum, The Netherlands Andrias scheuchzeri Oeningen. Courtesy of: http://en.wikipedia.org/wiki/Andrias_scheuchzeri
Figure 10 in Survey techniques for giant salamanders and other aquatic Caudata
Figure 10. The relative success of three capture techniques in locating various size classes of C. alleganiensis. From Foster et al. 2008. Used with permission from Herpetological Review.
Figure 3 in Survey techniques for giant salamanders and other aquatic Caudata
Figure 3. Andrias japonicus is the second largest Cryptobranchid and reaches 150 cm in total length and 44 kg in weight. Image Sumio Okada.
Figure 2 in The giant salamanders (Cryptobranchidae): Part A. palaeontology, phylogeny, genetics, and morphology
Figure 2. Fossil salamanders strongly support an east Asian (red ellipse) origin for the Cryptobranchoidea. The continents were distributed very differently in the Mid-Jurassic (170 MYA) before continental drift moved them to their present locations. However, Eurasia and North America remained in the Northern Hemisphere. By the Late Pliocene (3 MYA) the continents had moved to their present positions. Image courtesy of palaeos site: http://palaeos.com/mesozoic/jurassic/midjura.html. Adapted from Gao and Shubin, 2003.
Figure 5 a, b in The giant salamanders (Cryptobranchidae): Part A. palaeontology, phylogeny, genetics, and morphology
Figure 5 a, b. Taking tissue samples from tail clips (Image: Amy McMillan) or blood samples (Image: Jeff Briggler) enables conservation geneticists to assess an individual's relationship to other individual cryptobranchids and the relationship of its population to other populations of the same species.
Figure 8. Artificial spawning dens for C in Survey techniques for giant salamanders and other aquatic Caudata
Figure 8. Artificial spawning dens for C. alleganiensis are used to increase the number of nesting sites and allow monitoring of egg production and larval survival. Image Noelle Rayman.
Figure 7 in Survey techniques for giant salamanders and other aquatic Caudata
Figure 7. Snorkeling and turning small substrate is a good technique for surveying small to large C. alleganiensis in water of moderate depth. Image Robert Browne.
Figure 6 in Survey techniques for giant salamanders and other aquatic Caudata
Figure 6. Turning heavy rocks, combined with snorkeling with face masks and nets is an effective means to survey juvenile and adult C. alleganiensis. Image Robert Browne.
Figure 2 in Survey techniques for giant salamanders and other aquatic Caudata
Figure 2. Genetic drift and selection for color traits in A. davidianus have resulted in orange, piebald, and albino strains. Image Robert Browne.
Linked collectors and determiners for: Taxonomic revision of the moss salamander Nototriton barbouri (Schmidt) (Caudata: Plethodontidae), with description of two new species from the Cordillera Nombre de Dios, Honduras.
Natural history specimen data linked to collectors and determiners held within, "Taxonomic revision of the moss salamander Nototriton barbouri (Schmidt) (Caudata: Plethodontidae), with description of two new species from the Cordillera Nombre de Dios, Honduras". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/a1b849bb-aef2-4b87-895b-93c4a5ed942d">https://bionomia.net/dataset/a1b849bb-aef2-4b87-895b-93c4a5ed942d</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/a1b849bb-aef2-4b87-895b-93c4a5ed942d">https://gbif.org/dataset/a1b849bb-aef2-4b87-895b-93c4a5ed942d</a>. Formatted as a Frictionless Data package.
Figure 1 in 'Mainland-island' population structure of a terrestrial salamander in a forest-bocage landscape with little evidence for in situ ecological speciation
Figure 1. ContinentalFrancewiththedepartmentMayennehighlighted (A) andhabitatmodelforthe Fire salamander indepartment Mayenne (B). Themap representsthe habitat suitability model Ps = (1/ (1 + exp(−0.0303*percent_forest_cover-0.00562*altitude-0.0299*percent_hedgerow_cover + 1.769))) and was visualized with ILWIS 3.6 software58, available at https://52north.org/software/software-projects/ilwis/. Habitat suitability increases from deep blue with a probability of occurrence of zero to deep red with a probability of occurrence at unity (see colour bar). Prime fire salamander habitats are found at higher altitudes and are forested (in black) or with a dense hedgerow cover. Populations genetically investigated are located in and around the largely deciduous forests Forêt de Bourgon (FB) and Bois de Hermet (BH) and listed in Table 1.The outer geographicalcoordinates of the department are 1.239–0.049W and 47.733–48.568N.
Figure 3 in 'Mainland-island' population structure of a terrestrial salamander in a forest-bocage landscape with little evidence for in situ ecological speciation
Figure 3. (A) Clustering of pairwise Fst-values of Kottenforstfire salamanderpopulations (localities K01-K47) with the UPGMA-method. Numbers K01-K27 represent populations in the western section of the forest and K28-K47 represent populationsin the eastern section of the forest. The basal cluster at Fst <0.04 is composed of two groups (shaded) composed of mostly eastern (14/16 = 88%) or mostlywestern localities (14/15 = 93%). Populations breeding in streams are shown by the letter S. Note that populations that join the dendrogram at higher Fst-values are characterized by mostlysmall effectivepopulation sizes (Ňe ≤ 10, indicated by small open dots; X – Ňe not determined). B top panel - Populationsplotted along the firstand second axis of a principal component analysis. Middle panel - Ellipses represent means ± standarddeviation for sevenstream populations (left ellipse) and 40 non-streampopulations (right ellipse). Lower panel - Ellipsesrepresent means ± standard deviation forthe western (left) and eastern (right) sectionof the Kottenforst, forsmall populations (Ňe ≤ 10) shown by interruptedlines andfor larger populations (Ňe> 10) shown by uninterrupted lines. Notethat for the larger populations the ellipses for western and eastern localities do not overlap.
Figure 4. MicrosatellitepopulationgeneticdataforthefiresalamanderintheKottenforst, Germany21,24 in 'Mainland-island' population structure of a terrestrial salamander in a forest-bocage landscape with little evidence for in situ ecological speciation
Figure 4. MicrosatellitepopulationgeneticdataforthefiresalamanderintheKottenforst, Germany21,24 analyzed in the framework of allopatric speciation, i.e. a secondary spatial contact of a western pond-breeding lineage and an eastern stream-breeding lineage. The 95% credible cline regions are shown by grey shading. Solid and open round symbolsrepresent larger (Ňe> 10) andsmall populations (Ňe ≤ 10), respectively. Note that the stream-breeding populations that gave the composite genotype its name are all located in the eastern section of the Kottenforst (six data points indicated with a forward slash (/). One 'intermittent stream' in the western section is indicated by a backward slash. Also note the paucity of data at and around the steepest part of the clines. A – loadings on the first PC axis versus geographical distance. The clinecentre is at km 365.3 of the Universal Transverse Mercator (UTM) grid. Cline width is 3952 m. B – frequency of the stream-breeding genotype versus distance (after21). Thecline centre is at UTM km 365.1 and the cline widthis 1108 m. For model details see Supplementary Information VI.
Figure 2 in 'Mainland-island' population structure of a terrestrial salamander in a forest-bocage landscape with little evidence for in situ ecological speciation
Figure 2. (A) Clustering of pairwise Fst-values of firesalamander populations (Mayenne localities 1–41) with the UPGMA-method. The basal cluster at Fst <0.010 is mostly composed of forest populations (F, 17/21 = 81%) whereas populationsthat jointhe dendrogramat higher Fst-values are mostly fromthe bocage (B, 14/20 = 70%). At Fst> 0.025 the contribution of the bocage populations is eightout of eight. Notethat populations thatjoin the dendrogram at the highest Fst-values are characterizedby mostly small effective population sizes (Ňe ≤ 10, indicated by small open dots). (B) Populations plotted along the first and second axis of a principal component analysis. The 23 forest populations are shown by small solid round symbols and the solid ellipse represents the mean ± standard deviation. Eighteenpopulations from the bocageare shown by large open round symbols, with the mean ± standard deviation shown bythe widerellipse with the interrupted line.
Figure 2 in Geographical variation in the golden-striped salamander, Chioglossa lusitanica Bocage, 1864 and the description of a newly recognized subspecies
Figure 2. Congruence between morphometry- and geography-based classifications of the southern and northern subspecies of Chioglossa lusitanica across a latitudinal transect in central and northern Portugal, for males (left) and females (right). Numbers 5–13 and letters a–d, M and D refer to putative subspecies borders (see Figure 1). Congruence is expressed by kappa (K)¡asymptotic standard error. Following Altman (1991) K-scores of,0.4 indicate a 'fair' congruence between classifications; with 0.4,K,0.6 congruence is 'moderate' and with K.0.6 congruence is 'good'. The most convincing discrimination from morphology is achieved when the border between the southern and the northern population is set at population 8 (open round symbol).
Figure 1 in Geographical variation in the golden-striped salamander, Chioglossa lusitanica Bocage, 1864 and the description of a newly recognized subspecies
Figure 1. Approximate range of the golden-striped salamander, Chioglossa lusitanica, in the Iberian Peninsula (insert) with 16 populations that were subject to morphometric analysis (solid dots). Numbers 5–13 and letters a– d, D and M refer to putative subspecies borders that were designed to evaluate the congruence of range and subspecies morphology. Four populations with just molecular genetic data available are shown by open dots. Localities are as follows: 1, Muradal, Foz de Giraldo—40°0923.60N, 7°41949.80W; 2, Lousa˜, C. Pêra— 40°5928.70N, 8°1294.10W; 3, Lousa˜, Fiscal—40°6950.40N, 8°13927.60W; 4, Lousa˜, Vilarinho—40°799.50N, 8°12932.50W; 5, Açor, Margaraça—40°13914.00N, 7°5597.40W; 6, Várzeas—40°14953.70N, 8°22932.40W; 7, Buçaco—40°21951.60N, 8°2197.90W; 8, Saide—40°26946.20N, 8°19927.50W; 9, Covelo—40°46937.10N, 8°12947.30W; 10, Tarouca—41°1938.30N, 7°47912.10W; 11, Montemuro—41°2933.10N, 8°3957.60W; 12, Valongo, Silveirinha—41°10945.90N, 8°29957.30W; 13, Valongo, Águas Férreas—41°11918.30N, 8°29918.40W; 14, Bom Jesus—41°33925.70N, 8°22926.50W; 15, Cabreira—41°39939.60N, 8°1924.60W; 16, Gerês— 41°45926.80N, 8°8945.40W; 17, Pontevedra—42°3095.70N, 8°28953.50W; 18, Caaveiro—43°2693.90N, 8°2954.90W; 19, Salas—43°23940.70N, 6°15922.80W; 20, Cuera—43°17945.70N, 4°35956.90W.
Figure 3 in Geographical variation in the golden-striped salamander, Chioglossa lusitanica Bocage, 1864 and the description of a newly recognized subspecies
Figure 3. Discriminant function scores for the southern (S) and northern (N) subspecies in males and females of Chioglossa lusitanica with the range border at locality 8. The boxes and bars represent 50% and 80% of the data, respectively, and round symbols are outliers, for ln-transformed (left panel) and ln-transformed, size-adjusted data (right panel). Interrupted lines represent the discriminant functions for the two C. lusitanica syntypes.
Figure 72 in The Palaeozoic Ancestry of Salamanders, Frogs and Caecilians
Figure 72. Comparative drawings of the Lower Permian microsaur Rhynchonkos (Carroll, 2000b), the Lower Jurassic caecilian Eocaecilia, and the primitive living caecilian Ichthyophis (F. A. Jenkins, D. Walsh & R. L. Carroll, 2007, in press). A, D, G, H, dorsal, palatal, lateral, and occipital views of Rhynchonkos. B, E, dorsal and palatal views of Eocaecilia. C, F, dorsal and lateral views of Ichthyophis.
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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)
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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.
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