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766 results for “Amphibians & reptiles”
Data from: Influences of ski-runs, meadow management and climate on the occupancy of reptiles and amphibians in a high-altitude environment of Italy
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Data from: Fast life history traits promote invasion success in amphibians and reptiles
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Data for: Meta analysis reveals impacts of disturbance on reptile and amphibian body condition
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Data and code from: Drivers of species richness in Amazonian amphibians and reptiles: Testing diversity hypotheses across taxonomic groups
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Data from: Disparity in taxonomic and functional diversity of amphibians and reptiles in a tropical region of central Mexico
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Comparative phylogeography of West African amphibians and reptiles
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FIGURE 5 in An annotated type catalogue of amphibians and reptiles collected by Nikolay A Zarudny in Iran and Middle Asia
FIGURE 5. Type localities of taxa described after specimens collected by N. Zarudny in Middle and Central Asia. See Table 1 for more information.
FIGURE 3. Teratoscincus zarudnyi Nikolsky 1896 in An annotated type catalogue of amphibians and reptiles collected by Nikolay A Zarudny in Iran and Middle Asia
FIGURE 3. Teratoscincus zarudnyi Nikolsky 1896. Drawing from description of Nikolsky (1896, tab. XVIII).
FIGURE 2 in An annotated type catalogue of amphibians and reptiles collected by Nikolay A Zarudny in Iran and Middle Asia
FIGURE 2. Page from calatogue of Zoological Museum, Imperial Academy of Sciences with notes about Zarudny's collection from Eastern Persia in 1896.
FIGURE 1 in An annotated type catalogue of amphibians and reptiles collected by Nikolay A Zarudny in Iran and Middle Asia
FIGURE 1. Routes of Nikolay Zarudny journeys to Persia in 1896, 1898, 1890–1901 and 1903–1904 (from Bobrinsky, 1940, with changes).
FIGURE 4 in An annotated type catalogue of amphibians and reptiles collected by Nikolay A Zarudny in Iran and Middle Asia
FIGURE 4. Type localities of taxa described after specimens collected by N. Zarudny in Iran and Turkmenistan. See Table 1 for more information.
FIGURE 4 in Quantifying vertebrate zoogeographical regions of Australia using geospatial turnover in the species composition of mammals, birds, reptiles and terrestrial amphibians
FIGURE 4. The zoogeographical regions proposed by Cracraft (1991, thick black lines) and superimposed over the three clusters found in this study.
Data from: An identification of invariants in life history traits of amphibians and reptiles
<p>While many morphological, physiological, and ecological characteristics of organisms scale with body size, some do not change under size transformation. They are called invariant. A recent study recommended five criteria for identifying invariant traits. These are based on that a trait exhibits a unimodal central tendency and varies over a limited range with body mass (type I), or that it does not vary systematically with body mass (type II). We methodologically improved these criteria and then applied them to life history traits of amphibians, Anura, Caudata (eleven traits), and reptiles (eight traits). The numbers of invariant traits identified by criteria differed across amphibian orders and between amphibians and reptiles. Reproductive output (maximum number of reproductive events per year), incubation time, length of larval period, and metamorphosis size were type I and II invariant across amphibians. In both amphibian orders, reproductive output and metamorphosis size were type I and II invariant. In Anura, incubation time and length of larval period and in Caudata, incubation time were further type II invariant. In reptiles, however, only number of clutches per year was invariant (type II). All these differences could reflect that in reptiles body size and in amphibians, Anura, and Caudata metamorphosis (neotenic species go not through it) and the trend towards independence of egg and larval development from water additionally constrained life history evolution. We further demonstrate that all invariance criteria worked for amphibian and reptilian life history traits, although we corroborated some known and identified new limitations to their application.</p>
Data from: Patterns and biases in climate change research on amphibians and reptiles: a systematic review
Climate change probably has severe impacts on animal populations, but demonstrating a causal link can be difficult because of potential influences by additional factors. Assessing global impacts of climate change effects may also be hampered by narrow taxonomic and geographical research foci. We review studies on the effects of climate change on populations of amphibians and reptiles to assess climate change effects and potential biases associated with the body of work that has been conducted within the last decade. We use data from 104 studies regarding the effect of climate on 313 species, from 464 species–study combinations. Climate change effects were reported in 65% of studies. Climate change was identified as causing population declines or range restrictions in half of the cases. The probability of identifying an effect of climate change varied among regions, taxa and research methods. Climatic effects were equally prevalent in studies exclusively investigating climate factors (more than 50% of studies) and in studies including additional factors, thus bolstering confidence in the results of studies exclusively examining effects of climate change. Our analyses reveal biases with respect to geography, taxonomy and research question, making global conclusions impossible. Additional research should focus on under-represented regions, taxa and questions. Conservation and climate policy should consider the documented harm climate change causes reptiles and amphibians.
FIGURES 4–7 in Acanthocephalans of Amphibians and Reptiles (Anura and Squamata) from Ecuador, with the description of Pandosentis napoensis n. sp. (Neoechinorhynchidae) from Hyla fasciata
FIGURES 4–7. Micrographs of Pandosentis napoensis n. sp. 4. Proboscis, specimen 1. 5. Proboscis, specimen 2. 6. Specimen 1 ventral view. &. Lacuna system showing irregular diagonal lacunae connecting with circular canals. Scale bars: 4 = 20Μm; 5 & 7 = 40µm; 6 = 200Μm.
FIGURES 1–3. Pandosentis napoensis n in Acanthocephalans of Amphibians and Reptiles (Anura and Squamata) from Ecuador, with the description of Pandosentis napoensis n. sp. (Neoechinorhynchidae) from Hyla fasciata
FIGURES 1–3. Pandosentis napoensis n. sp. 1. Adult male, ventral view. 2. Proboscis armature, lateral view. 3. Longitudinal row of hooks, lateral view. Scale bars: 1 = 60µm; 2 = 25µm; 3 = 10µm.
FIGURE 6 in The nomenclatural status of the nomina of amphibians and reptiles created by Garsault (1764), with a parsimonious solution to an old nomenclatural problem regarding the genus Bufo (Amphibia, Anura), comments on the taxonomy of this genus, and comments on some nomina created by Laurenti (1768)
FIGURE 6. Reproduction of part of the tree of anurans in Van Bocxlaer et al. (2009: 3) including their BUFONIDAE. The specific nomina are those used by these authors, whereas the generic nomina in the column on the right are those supported here, either for genera or subgenera (see text for details). Bidirectional arrows point to reported cases of successful hybridization resulting in adult specimens: (1) between Bufo bufo and Bufo viridis (Hemmer & Böhme 1974; Duda 2008); (2) between Bufo calamita and Bufo viridis (Flindt & Hemmer 1967; Hemmer 1973; Schlyter et al. 1991); (3) between Bufo terrestris and Bufo valliceps (Blair 1941; Moore 1955) and between Bufo fowleri and Bufo valliceps (Blair in Moore 1955); (4) between Bufo bufo and Bufo woodhousii (Blair 1972: 420). The larger grey rectangle includes all the species that must be maintained in the genus Bufo according to these data if the crossability criterion of Dubois (1988a-b, 2004c) is implemented. The darker grey rectangles includes species that could be placed in two distinct genera if the only reported case between Bufo bufo and Bufo woodhousii proved to be in error; in this latter case, several genera should be recognized for the species remaining in the lighter grey area. See text for explanations.
FIGURE 4 in The nomenclatural status of the nomina of amphibians and reptiles created by Garsault (1764), with a parsimonious solution to an old nomenclatural problem regarding the genus Bufo (Amphibia, Anura), comments on the taxonomy of this genus, and comments on some nomina created by Laurenti (1768)
FIGURE 4. Reproduction of part of the general tree of amphibians in Frost et al. (2006: 129; 2009b: 144) including their BUFONIDAE. The specific nomina are those used by these authors, whereas the generic nomina in the column on the right are those supported here, either for genera or subgenera (see text for details). Bidirectional arrows point to reported cases of successful hybridization resulting in adult specimens: (1) between Bufo bufo and Bufo viridis (Hemmer & Böhme 1974; Duda 2008); (2) between Bufo terrestris and Bufo valliceps (Blair 1941; Moore 1955) and between Bufo fowleri and Bufo valliceps (Blair in Moore 1955); (3) between Bufo bufo and Bufo woodhousii (Blair 1972: 420). The grey rectangle includes all the species that must be maintained in the genus Bufo according to these data if the crossability criterion of Dubois (1988a-b, 2004c) is implemented. See text for explanations.
FIGURE 5 in The nomenclatural status of the nomina of amphibians and reptiles created by Garsault (1764), with a parsimonious solution to an old nomenclatural problem regarding the genus Bufo (Amphibia, Anura), comments on the taxonomy of this genus, and comments on some nomina created by Laurenti (1768)
FIGURE 5. Reproduction of part of the tree of vertebrates in Pramuk et al. (2008: 76) including their BUFONIDAE. The specific nomina are those used by these authors, whereas the generic nomina in the column on the right are those supported here, either for genera or subgenera (see text for details). Bidirectional arrows point to reported cases of successful hybridization resulting in adult specimens: (1) between Bufo fowleri and Bufo valliceps (Blair in Moore 1955); (2) between Bufo terrestris and Bufo valliceps (Blair 1941; Moore 1955); (3) between Bufo bufo and Bufo woodhousii (Blair 1972: 420). The larger grey rectangle includes all the species that must be maintained in the genus Bufo according to these data if the crossability criterion of Dubois (1988a-b, 2004c) is implemented. The darker grey rectangle includes species that could be excluded from this genus if the only reported case between Bufo bufo and Bufo woodhousii proved to be in error. See text for explanations.
FIGURE 3 in The nomenclatural status of the nomina of amphibians and reptiles created by Garsault (1764), with a parsimonious solution to an old nomenclatural problem regarding the genus Bufo (Amphibia, Anura), comments on the taxonomy of this genus, and comments on some nomina created by Laurenti (1768)
FIGURE 3. Reproductions of extracts from the works of Garsault (1764, 1767): plates 673–675 (1764); text page 414 (1767). See text for explanations.
ScienceDex guides
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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.