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1,790 results for “Reptile”
Fig. 1 in Species Diversity And Ecology Of Amphibians And Reptiles In Urbanized Landscapes Of The City Of Minsk
Fig. 1 Location of the largest habitats and stable populations of amphibians and reptiles in the urbanized areas of the Minsk city.
Fig. 1 in Invasive Mollusc, Crustacean, Fish And Reptile Species Along The Hungarian Stretch Of The River Danube And Some Connected Waters
Fig. 1. Increasing number of invasive species in the Hungarian Danube stretch according to the studied taxonomical groups
FIG. 8 in Contexte historique de la collection Félix de Roissy (1771- 1843) de reptiles marins jurassiques des Vaches Noires
FIG. 8. — Restes de plésiosauriens (Plesiosauria) du Jurassique (Callovien supérieur ou Oxfordien inférieur) des Vaches Noires de la collection de Roissy: A, propodial de Plesiosauroidea, MNHN.F.RJN219;B, extrémité distale d'un propodial de Plesiosauroidea, MNHN.F.RJN218;C, D, faces antérieure (C) et latérale droite (D) d'une vertèbre dorsale de Plesiosauroidea, MNHN.F.RJN180 (AC 8918); E-G, faces latérales (E, F) et section (G) d'une dent de Liopleurodon ferox Sauvage, 1873 (Pliosauridae), MNHN.F.RJN235 (AC 8914). Échelles: A-F, 5 cm; G, 2 cm.
FIG. 4 in Contexte historique de la collection Félix de Roissy (1771- 1843) de reptiles marins jurassiques des Vaches Noires
FIG. 4. — Note sur des restes de reptiles découverts à Villers-sur-Mer (BCM Ms629/388). Cette note, datée du 4 novembre 1821, fut rédigée par Joseph Barklay Pentland (1797-1873), un des assistants de Cuvier, à partir de renseignements que lui avait fournis Félix de Roissy. © Muséum national d'histoire naturelle (Paris)-Direction des bibliothèques et de la documentation.
FIG. 3 in Contexte historique de la collection Félix de Roissy (1771- 1843) de reptiles marins jurassiques des Vaches Noires
FIG. 3. — Lettre de Félix de Roissy à Henri Marie Ducrotay de Blainville (BCM MsBLA9/63) datée du 26 avril 1827 (voir la transcription de la lettre dans l'Annexe 4). © Muséum national d'histoire naturelle (Paris)-Direction des bibliothèques et de la documentation.
FIG. 6 in Contexte historique de la collection Félix de Roissy (1771- 1843) de reptiles marins jurassiques des Vaches Noires
FIG. 6. — Exemples de marques ou d'étiquettes sur des spécimens de la collection de Roissy: A, étiquette imprimée caractéristique de la partie de la collection de Roissy qui fut acquise en 1847 par le gouvernement français pour le compte du Muséum d'Histoire naturelle. L'étiquette présentée ici est apposée au dos d'une plaque de calcaire lithographique portant l'empreinte d'un Leptolepis sp. (Osteichthyes) du Jurassique supérieur de Solnhofen en Allemagne (MNHN.F.SLN14); B, initiale «R.» écrite à l'encre sur une vertèbre de thalattosuchien des Vaches Noires (MNHN.F.RJN206). Cette marque figure sur la plupart des restes de reptiles jurassiques de la collection de Roissy; C, D, spécimens sur lesquels la mention « coll. de Mr. de Roissy » est écrite à l'encre en toutes lettres; C, MNHN.F.RJN128B, région articulaire d'une mandibule de métriorhynchidé des Vaches Noires; D, MNHN.F.RJN235, dent de Liopleurodon ferox Sauvage, 1873 des Vaches Noires; E, étiquette collée sur le spécimen MNHN.F.RJN221 (fragment de ceinture d'ichthyosaure des Vaches Noires) acquis par Félix de Roissy en 1841.
FIG. 2 in Contexte historique de la collection Félix de Roissy (1771- 1843) de reptiles marins jurassiques des Vaches Noires
FIG. 2. — Château de Villers-sur-Mer où demeuraient la cousine de Félix de Roissy, Cunégonde Pâris d'Illins (1764-1831), née Brillon de Jouy, le fils de cette dernière, Raoul Pâris d'Illins (1802-1874), maire de la commune et son épouse, Anne Sophie Béatrix (1809-1888), la fille de Félix de Roissy. Gravure publiée dans un article d'Arcisse de Caumont (1849: 316) d'après un dessin du peintre et historien normand Georges Bouet (1817-1890).
FIG. 12 in Contexte historique de la collection Félix de Roissy (1771- 1843) de reptiles marins jurassiques des Vaches Noires
FIG. 12. — Crâne de Steneosaurus edwardsi E. Eudes-Deslongchamps, 1868 (lectotype) des Vaches Noires (Callovien supérieur ou Oxfordien inférieur): A-C, Spéci- men original (MNHN.F.RJN118A, RJN118B, AC 8909, collection de Roissy) en vues latérale gauche (A), dorsale (B) et ventrale (C); D-F, figures correspondantes publiées par E. Eudes-Deslongchamps (1867-1869: pl. 17), vues latérale droite (D), dorsale (E) et ventrale (F). Échelle: 10 cm.
FIG. 5 in Contexte historique de la collection Félix de Roissy (1771- 1843) de reptiles marins jurassiques des Vaches Noires
FIG. 5. — Extraits du « Catalogue des ossements fossiles et des modèles en plâtre reçus par le Muséum de 1842 à 1850 » dressé par M. de Serres en 1859. A, numéro d'entrée n°3 pour l'année 1845; B, numéro d'entrée n°11 pour l'année 1847.
FIG. 1 in Contexte historique de la collection Félix de Roissy (1771- 1843) de reptiles marins jurassiques des Vaches Noires
FIG. 1. — Lettre de Félix de Roissy à Henri Marie Ducrotay de Blainville datée du 18 octobre 1830 (BCM MsBLA9/64) dans laquelle de Roissy cherche à convaincre son ami de garder son poste au Muséum d'Histoire naturelle et d'accepter de prêter serment d'allégeance au nouveau roi Louis-Philippe suite aux évènements de juillet 1830 et la destitution de Charles X (voir la transcription de la lettre dans l'Annexe 2). © Muséum national d'histoire naturelle (Paris)-Direction des bibliothèques et de la documentation.
Fig. 4 in Using Ecological Niche Modeling For Biodiversity Conservation Guidance In The Western Podillya (Ukraine): Reptiles
Fig. 4. Areas (polygons) in Western Podillya (Ukraine), where there is a predicted probability for the accommodation 9, 8 or 7 reptile species (gradient from dark gray — 9 species to light — 7 species). Districts numbered as in fig. 3.
Fig. 3 in Using Ecological Niche Modeling For Biodiversity Conservation Guidance In The Western Podillya (Ukraine): Reptiles
Fig. 3. Areas (downward diagonal filled polygons) in Western Podillya (Ukraine), where the average predicted habitat suitability for reptile species exceeds 0.5 (Districts: 1 — Terebovlianskyi, 2 —Husiatynskyi, 3 — Buchatskyi, 4 — Chortkivskyi, 5 — Chemerovetskyi, 6 — Horodenkivskyi, 7 — Zalishchytskyi, 8 — Borshchivskyi, 9 — Kamianets-Podilskyi, 10 — Zastavnivskyi, 11 — Khotynskyi).
Data associated with: Global ecomorphological restructuring of dominant marine reptiles prior to the K/Pg mass extinction
<p>Mosasaurid squamates were the dominant amniote predators in marine ecosystems during most of the Late Cretaceous. Here, we use a suite of biomechanically rooted, functionally descriptive ratios in a framework adapted from population ecology to investigate how the morphofunctional disparity of mosasaurids evolved prior to the Cretaceous-Paleogene (K/Pg) mass extinction. Our results suggest that taxonomic turnover in mosasaurid community composition from Campanian to Maastrichtian is reflected by a notable global increase in morphofunctional disparity, especially driven the North American record. Ecomorphospace occupation becomes polarised during the Late Maastrichtian, with morphofunctional disparity plateauing in the Southern Hemisphere and decreasing in the Northern Hemisphere. We show that these changes are not strongly associated with mosasaurid size, but rather with the functional capacities of their skulls. Our novel approach indicates that mosasaurid morphofunctional disparity was in decline in multiple provincial communities before the K-Pg mass extinction, highlighting region-specific patterns of disparity evolution and the importance of assessing vertebrate extinctions both globally and locally. Ecomorphological differentiation in mosasaurid communities, coupled with declines in other formerly abundant marine reptile groups, indicates widespread restructuring of higher trophic levels in marine food webs was well underway when the K/Pg mass extinction took place.</p>
Data from: Convergence and constraint in the cranial evolution of mosasaurid reptiles and early cetaceans
<p>The repeated return of tetrapods to aquatic life provides some of the best-known examples of convergent evolution. One comparison which has received relatively little focus is that of mosasaurids (a group of Late Cretaceous squamates) and archaic cetaceans (the ancestors of modern whales and dolphins), both of which show high levels of craniodental disparity, similar initial trends in locomotory evolution, and global distributions. Here we investigate convergence in skull ecomorphology during the initial aquatic radiations of these groups. A series of functionally informative ratios were calculated from 38 species, with ordination techniques used to reconstruct patterns of functional ecomorphospace occupation. The earliest fully aquatic members of each clade occupied different regions of ecomorphospace, with basilosaurids and early russellosaurines exhibiting marked differences in cranial functional morphology. Subsequent ecomorphological trajectories notably diverge: mosasaurids radiated across ecomorphospace with no clear pattern and numerous reversals, whereas cetaceans notably evolved towards shallower, more elongated snouts, perhaps as an adaptation for capturing smaller prey. Incomplete convergence between the two groups is present among megapredatory and longirostrine forms, suggesting stronger selection on cranial function in these two ecomorphologies. Our study highlights both the similarities and divergences in craniodental evolutionary trajectories between archaic cetaceans and mosasaurids, with convergences transcending their deeply divergent phylogenetic affinities.</p>
Data from: Unwrapping broken tails: Biological and environmental correlates of predation pressure in limbless reptiles
<p>Studying species interactions in nature often requires elaborate logistics and intense fieldwork. The difficulties in such task might hinder our ability to answer questions on how biotic interactions change with the environment. Fortunately, a workaround to this problem lies within scientific collections. For some animals, the inspection of preserved specimens can reveal the scars of past antagonistic encounters, such as predation attempts. A common defensive behaviour that leaves scars on animals is autotomy, the loss of a body appendage to escape predation. By knowing the collection site of preserved specimens, it is possible to assess the influence of organismal biology and the surrounding environment in the occurrence of autotomy. We produced data on tail loss for 8,189 preserved specimens of 33 snake and 11 amphisbaenian species to investigate biological and environmental correlates of autotomy in reptiles. We applied generalized linear mixed effect models to evaluate whether body size, sex, life-stage, habitat use, activity pattern, biome, tropicality, temperature, and precipitation affect the probability of tail loss in limbless reptiles. We observed autotomy in 23.6% of examined specimens, with 18.7% of amphisbaenian and 33.4% of snake specimens showing tail loss. Probability of tail loss did not differ between snakes and amphisbaenians, but it was higher among large-sized specimens, particularly in adults and females. Chance of tail loss was higher for diurnal and arboreal species, and among specimens collected in warmer regions, but it was unaffected by biome, precipitation, and tropicality. Autotomy in limbless reptiles was affected by size-dependent factors that interplay with ontogeny and sexual dimorphism, although size-independent effects of life-stage and sex also shaped behavioural responses to predators. The increase in probability of tail loss with verticality and diurnality suggests a risk-balance mechanism between species habitat use and activity pattern. Although autotomy is more likely in warmer regions, it seems unrelated to seasonal differences in snakes and amphisbaenians activity. Our findings reveal several processes related to predator-prey interactions involving limbless reptiles, demonstrating the importance of scientific collections to unveil ecological mechanisms at different spatio-temporal scales.</p>
Home and hub: pet trade and traditional medicine impact reptile populations in source locations and destinations
<p>The pet trade and Traditional Chinese Medicine (TCM) consumption are major drivers of global biodiversity loss. Tokay geckos (<em>Gekko gecko</em>) are among the most traded reptile species worldwide. In Hong Kong, pet and TCM markets sell tokay geckos while wild populations also persist. To clarify connections between trade sources and destinations, we compared genetics and stable isotopes of wild tokays in local and nonlocal populations to dried individuals from TCM markets across Hong Kong. We found that TCM tokays are likely not of local origin. Most wild tokays were related to individuals in South China, indicating a probable natural origin. However, two populations contained individuals more similar to distant populations, indicating pet trade origins. Our results highlight the complexity of wildlife trade impacts within trade hubs. Such trade dynamics complicate local legal regulation when endangered species are protected, but the same species might also be non-native and possibly damaging to the environment.</p>
Fig. 2 in Parasitic Nematodes Of Reptiles (Lizards And Snakes) In The Monte Desert Of Argentina
Fig. 2. Environments where the samplings were performed. Capture locations of L. darwinii, L. riojanus and A. longicauda. Town of the Encón, Department of 25 de Mayo (A, B, C)
Fig. 3. Studied hosts. A in Parasitic Nematodes Of Reptiles (Lizards And Snakes) In The Monte Desert Of Argentina
Fig. 3. Studied hosts. A = Philodryas trilineata, B = Aurivela longicauda (photo: Ignacio Her- nandez), C = Liolaemus darwinii (photo: Claudio Mendez), D = Liolaemus riojanus
Figure 2 in Amphibians and reptiles as prey of Heteroctenus junceus (Scorpiones: Buthidae), with a summary of vertebrate predation by scorpions in the West Indies
Figure 2. Heteroctenus junceus, the largest species in the genus and one of the largest scorpions in the West Indies, male (2a) and female (2b).
Figure 1 in Amphibians and reptiles as prey of Heteroctenus junceus (Scorpiones: Buthidae), with a summary of vertebrate predation by scorpions in the West Indies
Figure 1. Partially digested Anolis ophiolepis found being preyed upon by an adult female Heteroctenus junceus at Loma La Carrera; the scorpion fled as soon as we turned the rock over.
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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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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.