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6,030 results for “Caving”
Data for: Summer declines of cave-dwelling Tricolored Bats
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Text-figure 1. Mormotomyia hirsuta Austen, 3. Greatly enlarged. in A Remarkable Semi-Apterous Fly (Diptera) found in a Cave in East Africa, and representing a new Family, Genus, and Species.
Text-figure 1. Mormotomyia hirsuta Austen, 3. Greatly enlarged.
Mormotomyia hirsuta Austen, d. Hind leg. Greatly enlarged. in A Remarkable Semi-Apterous Fly (Diptera) found in a Cave in East Africa, and representing a new Family, Genus, and Species.
Mormotomyia hirsuta Austen, d. Hind leg. Greatly enlarged.
Mormotomyia hirsuta Austen, 8. Wing. Greatly enlarged. in A Remarkable Semi-Apterous Fly (Diptera) found in a Cave in East Africa, and representing a new Family, Genus, and Species.
Mormotomyia hirsuta Austen, 8. Wing. Greatly enlarged.
Text-figure 4. Mormotomyia hirsuta Austen, 8. Wing. Greatly enlarged. in A Remarkable Semi-Apterous Fly (Diptera) found in a Cave in East Africa, and representing a new Family, Genus, and Species.
Text-figure 4. Mormotomyia hirsuta Austen, 8. Wing. Greatly enlarged.
Momnotomyia hirsuta Austen, 3. Greatly enlarged. in A Remarkable Semi-Apterous Fly (Diptera) found in a Cave in East Africa, and representing a new Family, Genus, and Species.
Momnotomyia hirsuta Austen, 3. Greatly enlarged.
Fig. 10 in Highly disjunct and highly infected millipedes - a new cave-dwelling species of Chiraziulus (Diplopoda: Spirostreptida: Cambalidae) from Iran and notes on Laboulbeniales ectoparasites
Fig. 10. Chiraziulus troglopersicus sp. nov., habitat; Neyneh Cave in Zagros Mountains, Iran.
Fig. 1 in Highly disjunct and highly infected millipedes - a new cave-dwelling species of Chiraziulus (Diplopoda: Spirostreptida: Cambalidae) from Iran and notes on Laboulbeniales ectoparasites
Fig. 1. Habitus of Chiraziulus troglopersicus sp. nov., paratype.
Fig 7. A in Kryptonesticus deelemanae gen. et sp. nov. (Araneae, Nesticidae), with notes on the Mediterranean cave species
Fig 7. A survey of the K. deelemanae gen. et sp. nov. type locality: Samogorska špilja.
Fig. 1 in A new species of freshwater Chaetonotidae (Gastrotricha, Chaetonotida) from Obodska Cave (Montenegro) based on morphological and molecular characters
Fig. 1. Map of Montenegro with the location of Obodska Cave.
Fig. 2 in A new species of freshwater Chaetonotidae (Gastrotricha, Chaetonotida) from Obodska Cave (Montenegro) based on morphological and molecular characters
Fig. 2. Scheme of Obodska Cave. 1, 2, 3, 4 = sampling localities.
Data from: Historical demography of four gecko species specializing in boulder cave habitat – its implications in the evolutionary dead end hypothesis and conservation
Specialization in narrow ecological niches might not only help species to survive in competitive or unique environments but also contribute to their extermination over evolutionary time. Although the "evolutionary dead end" hypothesis has long been debated, empirical evidence from species with detailed information on niche specialization and evolutionary history is still rare. Here we used a group of four closely related Cnemaspis gecko species that highly depend on granite boulder caves in the Mekong Delta to illuminate the potential impact of ecological specialization on their evolution and population dynamics. Isolated by the unsuitable habitat of a flood plain, these boulder-dwelling geckos are among the most narrowly distributed Squamata species in the world. We applied several coalescence-based approaches combined with the RAD-seq technique to estimate their divergence times, gene flow and demographic fluctuations during the speciation and population differentiation processes. Our results showed long-term population shrinkage in the four geckos and limited gene flow during their divergence. The results suggest that the erosion and fragmentation of the granite boulder hills have had great impacts on these populations' divergences and population declines. We argue that the specialist gecko's habitat specialization has facilitated the fine-scaled speciation in these granite rocky hills; in contrast, specialization might also have pushed these species toward the edge of extinction. Our study also emphasizes the conservation urgency of these vulnerable, cave-dependent geckos.
Data from: External temperature and distance from nearest entrance influence microclimates of cave and culvert roosting tri-colored bats Perimyotis subflavus
<p>Many North American bat species hibernate in both natural and artificial roosts. Although hibernacula can have high internal climate stability, they still retain spatial variability in their thermal regimes, resulting in various 'microclimates' throughout the roost that differ in their characteristics (e.g., temperature, air moisture). These microclimate components can be influenced by factors such as the number of entrances, the depth of the roost, and distance to the nearest entrance of the roost. Tri-colored bats are commonly found roosting in caves in winter, but they can also be found roosting in large numbers in culverts, providing the unique opportunity to investigate factors influencing microclimates of bats in both natural and artificial roost sites. As tri-colored bats are currently under consideration for federal listing, information of this type could be useful in aiding in the conservation and management of this species through a better understanding of what factors affect the microclimate near roosting bats. We collected data on microclimate temperature and microclimate actual water vapor pressure (AWVP) from a total of 760 overwintering tri-colored bats at 18 caves and 44 culverts. Using linear mixed models analysis, we found that variation in bat microclimate temperatures was best explained by external temperature and distance from nearest entrance in both caves and culverts. External temperature had a greater influence on microclimate temperatures in culverts than caves. We found that variation in microclimate AWVP was best explained by external temperature, distance from nearest entrance and proportion from entrance (proportion of the total length of the roost from the nearest entrance) in culvert roosting bats. Variation in microclimate AWVP was best explained by external temperature and proportion from entrance in cave roosting bats. Our results suggest that bat microclimate temperature and AWVP are influenced by the similar factors in both artificial and natural roosts, although the relative contribution of these factors differ between roost types.</p>
FIG. 1 in The worked bone industry and intrusive fauna associated with the prehistoric cave burials of Abri des Autours (Belgium)
FIG. 1. — Location of Abri des Autours and other Belgian sites mentioned in the text.
Data used in the paper entitled: Damaged Speleothems and Collapsed Karst Chambers Indicate Paleoseismicity of the NE Bohemian Massif (Niedźwiedzia Cave, Poland), published in TECTONICS
<p>Multiphase speleothem damage and passage collapse in Niedźwiedzia Cave (E: 16°50′36,65″, N: 50°14′04,26″) NE Bohemian Massif, Poland, were studied with an integrative approach to decipher the cause of damage during the last 320 ka. Since the most likely trigger of damage in the cave was an earthquake, we support our interpretation with a probable seismic intensity prediction to define a seismogenic source and to calculate the expected macroseismic intensity and peak ground acceleration (PGA) at the research site. Finally, we evaluate probable seismic effects in the cave with the elastic properties of speleothems to ascertain a threshold value of failure.<br> The relative range of earthquake hazards for a particular site depends significantly on the decrease in the ground motion amplitude (or intensity) with distance from all surrounding potential seismic sources, event size, and type of acting mechanism. The ground motion relation generally depends on the depth of focus, earthquake mechanism, and geological conditions along the path (Schenková et al., 1981). Therefore, to discuss probable seismic effects in Niedźwiedzia caves and their vicinities, we used the attenuation curves presented previously for the research area (Schenková et al., 1981; <a href="https://doi.org/10.1007/BF00878971;">https://doi.org/10.1007/BF00878971;</a> see the coefficient for the 13th zone). Dataset 2020TC006459_ds_to fig.5 contains a calculation of the attenuation curves, i.e., decrees of the intensity (on the MSK scale) and PGA (m/s2) with distance from the epicenter. We used these data to estimate (or to predict) the expected values of intensities ranging with distance from the seismogenic source region. This approach is a steady-state approximation because we assumed that isoseismal spread is regularly distributed around the epicenter and that the local influence of discontinuities is omitted.<br> The failure criteria resulting in speleothem damage were evaluated on a prismatic cantilever beam supported at one end. The parameters describing these criteria are the speleothem natural frequency and the corresponding critical horizontal ground acceleration (m/s2), which depend on elastic properties of the speleothem and the following geometric dimensions: height, H, and diameter, D, measured in situ (we acquired geometric measurements for 50 broken speleothems in Niedźwiedzia Cave). The horizontal ground acceleration is the limit value when at which speleothems breaks. The natural frequency (Hz) indicates that the failure process is more likely to occur if the natural frequency (or resonance frequency) is in accordance with the seismic wave frequency affecting the speleothem. If both frequencies match, the speleothem resonates, enhancing the oscillation effect, which may lead to damage. Dataset 2020TC006459_ds_to fig.6 contains H and D measurements of 50 broke speleothems and calculated natural frequency and critical horizontal ground acceleration for each measured speleothem. The values of both failure parameters depend on elastic properties that can be assessed in laboratory tests in which the following parameters are estimated: P- and S-wave velocities, Vp and Vs, respectively, using an acoustic measurement system, density, ρ, (from the measured mass and volume), Young’s modulus, E, and tensile stress, σt. The AMS tests were carried out at the Institute of Earth Sciences, University of Silesia, Sosnowiec, Poland. The failure stress was estimated based on the uniaxial compressive stress test carried out in the external laboratory of AP GEOTECHNIKA, Katowice, Poland, using a universal testing machine. The strength tests were conducted for two 0.05x0.05 m (height/dimension, h/d = 1) speleothems samples.</p>
Data from: Two new species of Parnassia (Celastraceae) from karst cave and Danxia landform in Southwest China
Two new species of Parnassia found in mountainous areas of Chongqing City, Southwest China, are described and illustrated: P. zhengyuanum M.X. Ren & J. Zhang and P. simianshanensis M.X. Ren, J. Zhang & Z.Y. Liu respectively. Parnassia zhengyuanum is found in a limestone cave near Mt. Jinfo, Nanchuan District, Chongqing City. This tiny plant has special spoon-shaped leaves and undivided staminodes with green apices. Parnassia simianshanensis was discovered in Mt. Simian, Jiangjin County, Chongqing City. This species grows along streams on red sandstones, i.e. in Danxia landform. It can be easily distinguished by its unique rhombic leaves and the five- or four-branched staminodes. The conservation status of P. zhengyuanum and P. simianshanensis are assessed respectively as 'Critically Endangered' (CR) and 'VU' (Vulnerable) according to IUCN criteria. The roles of karst and Danxia landforms in the speciation process are discussed.
mselensky/Selensky2021_LavaBeds_Lithoautotrophy: Stable Carbon Isotope Depletions in Lipid Biomarkers Suggest Subsurface Carbon Fixation in Lava Caves
<p>Data and R script repository for the manuscript "Stable Carbon Isotope Depletions in Lipid Biomarkers Suggest Subsurface Carbon Fixation in Lava Caves" (Selensky et al. 2021)</p>
Cave in WW1 base Mustavuori, Helsinki, Finland
Eastern entrance to 180 m² cave in First World War base I:13 in [Krepost Sveaborg](https://en.wikipedia.org/wiki/Krepost_Sveaborg) land front defense line in Mustavuori, Vuosaari, Helsinki, Finland. The base was built in 1915 - 1918. Western entrance is in [anothert model](https://skfb.ly/6UWBE). More info: * [Location in Google Maps](https://goo.gl/maps/cbqjrzMoBfz196yZ6) * [Wikipedia: Krepost Sveaborg](https://en.wikipedia.org/wiki/Krepost_Sveaborg) * [John Lagerstedt , Markku Saari: Krepost Sveaborg](http://www.novision.fi/viapori/eavaus.htm) * [Finnish Heritage Agency site info](https://www.kyppi.fi/to.aspx?id=112.1000007633) (only in finnish) Source: Objaverse 1.0 / Sketchfab
Cave of the Cats
The utterly sepulchral, terrifying maw of Rathcroghan, the Cave of the Cats, near Roscommon Source: Objaverse 1.0 / Sketchfab
St Medan's Cave - Dumfries & Galloway
St Medan's Cave is located near the Mull of Galloway in Dumfries & Galloway. While the structural remains are medieval, the site is believed to have been in use for much longer. Source: Objaverse 1.0 / Sketchfab
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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)
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
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