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208 results for “Atacama”
Fig. 8 in Living on the edge - first survey of loriciferans along the Atacama Trench
Fig. 8. Light micrographs showing overviews and details of paratypic Higgins larva of Pliciloricus ukupachaensis sp. nov., containing a postlarva with an adult (NHMD 1177414). A. Overview, focused medially in specimen. B. Ventral overview. C. Prepharyngeal armature, focused on oral teeth. D. Prepharyngeal armature, focused on internal armature. E. Anterior part of lorica, ventral view. F. Posterior part of lorica, dorsal view. G. Posterior part of lorica, focused medially in specimen. H. Posterior part of lorica, ventral view.
Fig. 5 in Living on the edge - first survey of loriciferans along the Atacama Trench
Fig. 5. Scanning electron micrographs showing overviews of adult paratypic ♀ of Pliciloricus ukupachaensis sp. nov. (NHMD 1177421). A. Ventral overview. B. Right side lateral overview. C. Frontal overview. D. Lorica, dorsocaudal view.
Fig. 4 in Living on the edge - first survey of loriciferans along the Atacama Trench
Fig. 4. Light micrographs showing overviews and details of holotype, adult ♀ of Pliciloricus ukupachaensis sp. nov. (NHMD 1177413). A. Lateral overview; dorsal is left and ventral is right. B. Detail of head showing mouth cone, clavoscalids and double organ. C. Detail of introvert showing scalids of Rows 4 to 8, inclusive claw-shaped scalids of Row 4. D. Detail of neck region and anterior part of lorica. E. Posterior part of lorica and lateral half of the anal field.
Data from: A sedimentary eDNA record of the Atacama Trench reveals biodiversity changes in the most productive marine ecosystem
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Data from: Ecophysiology and phylogeny of new terricolous and epiphytic chlorolichens in a fog oasis of the Atacama Desert
The Atacama Desert is one of the driest and probably oldest deserts on Earth where only a few extremophile organisms are able to survive. This study investigated two terricolous and two epiphytic lichens from the fog oasis "Las Lomitas" within the National Park Pan de Azúcar which represents a refugium for a few vascular desert plants and many lichens that can thrive on fog and dew alone. Ecophysiological measurements and climate records were combined with molecular data of the mycobiont, their green algal photobionts and lichenicolous fungi to gain information about the ecology of lichens within the fog oasis. Phylogenetic and morphological investigations led to the identification and description of the two new lichen species Ramalina reichenbergeri and Acarospora conafii as well as the lichenicolous fungi that accompanied them and revealed the trebouxioid character of all lichen photobionts. Their photosynthetic response during natural scenarios such as reactivation by high air humidity and in situ fog events were compared to elucidate the activation strategies of this lichen community. Epiphytic lichens showed photosynthetic activity that was rapidly induced by fog and additionally during high air humidity whereas terricolous lichens were only activated by fog.
Data from: Fog controls biological cycling of soil phosphorus in the Coastal Cordillera of the Atacama Desert
<p>In this study, we collected topsoil samples (0‒10 cm) from each of 54 subsites, including sites in direct adjacency (< 10 cm) and in 1 m distance to plants, along an aridity gradient across the Coastal Cordillera in the Atacama Desert. The soluble salts anions (NO<sup>3</sup><sup>‒</sup>, Cl<sup>‒</sup>, and SO<sub>4</sub><sup>2</sup><sup>‒</sup>) and cations (Ca<sup>2+</sup>, Na<sup>+</sup>, Mg<sup>2+</sup> and K<sup>+</sup>) were tested. And we performed soil sequential P fractionation and the oxygen isotope values of HCl-extractable P<sub>i</sub> (δ<sup>18</sup>O<sub>HCl</sub>-<sub>Pi</sub>). </p>
Beautiful Night in the Atacama Desert
<p>Honorable mention in the 2023 IAU OAE Astrophotography Contest, category Time-lapses of rotation of Big Dipper or Southern Cross: Beautiful Night in the Atacama Desert, by Uwe Reichert.</p> <p>Taken from San Pedro de Atacama, Chile, in June 2023, this time-lapse reveals the celestial ballet that unfolds as the Southern Cross takes its majestic journey across the sky, pointing the way to the South Celestial Pole around which the sky rotates, until it gracefully sets. The star-studded canvas showcases the grandeur of the Milky Way, adorned by the rotating Large and Small Magellanic Clouds swirling around the Southern Celestial Pole. The prominent constellations of Crux, Centaurus, Scorpius, and the former Argo Navis (Carina, Puppis, Vela) are also visible in this time-lapse that receives an honourable mention in the category of Time-lapses of rotation of Big Dipper or Southern Cross. The spectacle begins just after nightfall, capturing the radiant descent of Canopus, a beacon about to dip below the horizon. Throughout the sequence, there is a subtle presence of passing aeroplanes, fleeting headlights of cars, drifting clouds, and the ethereal airglow. At a stunning moment, a vivid meteor streaked across the sky, a breathtaking fireball briefly igniting the right lower corner around the 41st second mark. As the sequence progresses, the rising moon elegantly illuminates the landscape, casting its glow upon an ancient tree trunk resting on the dry, dusty grounds of the Salar de Atacama. This captivating journey through the night skies concludes before the break of dawn, offering a glimpse into the celestial marvels that are woven into the nocturnal tapestry of San Pedro de Atacama.</p> <p><strong>Credit</strong>: Uwe Reichert/IAU OAE (<a href="https://creativecommons.org/licenses/by/4.0/legalcode">CC BY 4.0</a>)</p>
Vasija negra pulida San Pedro de Atacama
Vasija negra pulida con rostro antropomorfo. Procede de San Pedro de Atacama. Source: Objaverse 1.0 / Sketchfab
Boy et al.: Gradient Studies Reveal the True Drivers of Extreme Life in the Atacama Desert.
<p>The file contains supplementary data on correlation matrices, spatial visualizations of soil pH, clay content, electric conductivity, and soluble salts as well as tables for salt concentrations in different soil depths across four large-scale soil transects in the Atacama Desert, Chile, from the Earth Shape Project. The excel file provides the values for the measured properties. </p> <p>Corresponding author: Diana Boy (<a href="mailto:diana.boy@ifmb.uni-hannover.de)">diana.boy@ifmb.uni-hannover.de)</a></p> <p> </p>
Hornitos, Atacama Desert, Chile
**Pliocene? Strata beside the road, near Hornitos Beach** **Proyect CRC1211 Earth Evolution at the dry limit** *Work by Main Austral* Source: Objaverse 1.0 / Sketchfab
Figure 7. Type locality. Santiago 15 in Two new species of plume moths (Lepidoptera: Pterophoridae) from Atacama Desert (Chile)
Figure 7. Type locality. Santiago 15 km ENE Camino a Farellones, 02.ii.2017 (photo by A. Pototski).
Blowin' in the wind: Mapping the dispersion of Metal(loid)s from Atacama Mining
<p><strong>Raw data from elemental and mineralogical analyses of surface sediments from Alto El Loa, Antofagasta Region, Chile.</strong></p> <p><strong>Blowin' in the wind: Mapping the dispersion of Metal(loid)s from Atacama Mining</strong></p> <p><strong>Authors: Nicolás C. Zanetta-Colombo<sup>1,2</sup> *, Carlos A. Manzano<sup>3,4 </sup>, Dagmar Brombierstäudl<sup>1</sup>, Zoë L. Fleming<sup>5,6</sup>, Eugenia M. Gayo<sup>6,7</sup>, David A. Rubinos<sup>8</sup>, Óscar Jerez<sup>9</sup>, Jorge Valdés<sup>10</sup>, Manuel Prieto<sup>11,12</sup>, Marcus Nüsser<sup>1,2</sup></strong></p> <p><strong><sup>1</sup></strong><sup> </sup>Department of Geography, South Asia Institute, Heidelberg University, Heidelberg, Germany.</p> <p><strong><sup>2</sup></strong><sup> </sup>Heidelberg Center for the Environment (HCE), Heidelberg University, Heidelberg, Germany.</p> <p><strong><sup>3</sup></strong><sup> </sup>Departamento de Química, Facultad de Ciencias, Universidad de Chile, Santiago, Chile.</p> <p><strong><sup>4</sup></strong><sup> </sup>School of Public Health, San Diego State University, San Diego, CA, USA</p> <p><strong><sup>5</sup></strong><sup> </sup>Centro de Investigación en Tecnologías para la Sociedad, Universidad Del Desarrollo, Santiago, Chile.</p> <p><strong><sup>6</sup></strong><sup> </sup>Center for Climate and Resilience Research (CR)2, Chile.</p> <p><strong><sup>7</sup></strong><sup> </sup>Departamento de Geografía, Universidad de Chile, Santiago, Chile.</p> <p><strong><sup>8</sup></strong><sup> </sup>Sustainable Minerals Institute–International Centre of Excellence Chile (SMI-ICE-Chile), The University of Queensland, Australia, Las Condes, Santiago, Chile.</p> <p><strong><sup>9</sup></strong><sup> </sup>Instituto de Geología Económica Aplicada (GEA), University of Concepción, Chile. Barrio Universitario S/N, Concepción, Chile.</p> <p><strong><sup>10</sup></strong><sup> </sup>Laboratorio de Sedimentología y Paleoambientes (LASPAL), Instituto de Ciencias Naturales Alexander von Humboldt, Facultad de Ciencias del Mar y de Recursos Biológicos, Universidad de Antofagasta, Antofagasta, Chile.</p> <p><strong><sup>11 </sup></strong>Millenium Nucleus in Andean Peatlands (AndesPeat), Chile</p> <p><strong><sup>12 </sup></strong>Departamento de Ciencias Históricas y Geográficas, Universidad de Tarapacá, 18 de Septiembre 2222, Arica, Chile</p> <p> </p> <p><strong><span>Data Set 1 (ds1): </span></strong><span>Elemental concentrations (mg/kg) of metal(loid)s in surface sediment samples. The dataset also includes geographic coordinates (LONG, LAT), distance to the nearest mines (Dist_mines), distance to tailings (Dist_tailing), and buffer zone classifications for tailings (Buffer_T) and mines (Buffer_M).</span></p> <p><strong>Data set 2 (ds2)</strong>: Mineralogical composition of selected surface sediment samples. </p>
Tambo en el desierto de Atacama
Tambo sector Medanoso, región de Atacama, Chile. Época Inca. Modelo elaborado por medio de fotogrametría por Francisco Garrido, curador del Área de Antropología del MNHN. Source: Objaverse 1.0 / Sketchfab
Data from: Fruit size determines the role of three scatter-hoarding rodents as dispersers or seed predators of a fleshy-fruited Atacama Desert shrub
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Data from: Ecophysiology and phylogeny of new terricolous and epiphytic chlorolichens in a fog oasis of the Atacama Desert
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Data from: Fog controls biological cycling of soil phosphorus in the Coastal Cordillera of the Atacama Desert
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Data from: Evidence for non-allopatric speciation among closely related sympatric Heliotropium species in the Atacama Desert
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Setting the evolutionary timeline: Tillandsia landbeckii in the Chilean Atacama Desert
<p>In the Chilean Atacama Desert <i>Tillandsia landbeckii</i> Phil. is forming a unique vegetation type known as <i>Tillandsia</i> lomas. This vegetation consists in its typical configuration of one single vascular plant species only. The species forms regular linear structures in a sloped landscape and is largely depending on sand movement and fog occurrence as dominant source of water supply. Without developing a typical root system there are also few other terrestrial <i>Tillandsia</i> species growing on bare sand in Chile and Peru such as <i>T. marconae</i> Till & Vitel, <i>T. virescens</i> Ruiz & Pavon, <i>T. purpurea</i> Ruiz & Pavon or <i>T. latifolia</i> Mayen. Although phylogenetic evidence is limited, convergent evolution of this unique growth behavior is evident. The Atacama Desert is one of the oldest hyperarid areas globally alongside the Namib. The predominantly arid and hyper-arid climate exists since the Early Miocene, which raises the question about timing of <i>T. landbeckii</i> evolutionary history. Our study highlights the onset of diversification in <i>T. landbeckii</i> and demonstrates also subsequent secondary genetic contact with <i>T. purpurea</i> during Late Pleistocene using whole plastome DNA sequence data.</p>
FIGURE 4 in A new species of Psectrascelis (Coleoptera: Tenebrionidae: Pimeliinae) from the coastal dunes of the Atacama Desert, Chile
FIGURE 4. Ventral view comparison of aedeagus and ovipositor of Psectrascelis ammophila sp. nov. (A, B) with Psectrascelis pilosa (C, D). ls, lateral style; b, basal lamina; pb, paraproct baculi; cl2–cl4, coxite plates 2–4; p, paraproct; ss, sensory setae; v, valvifer. Scale bar: 1 mm.
FIGURE 3 in A new species of Psectrascelis (Coleoptera: Tenebrionidae: Pimeliinae) from the coastal dunes of the Atacama Desert, Chile
FIGURE 3. Dorsal and ventral view of the habitus of Psectrascelis ammophila. A-B: Male. D-E: Female. C-F: Tibiae detail of male and female respectively.
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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
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.