Results 31 to 40 of about 16,981 (211)

First observations of the aquatic invertebrate fauna in ephemeral Atacama River (22° S, Antofagasta Region, Chile) [PDF]

open access: yesDesert, 2015
The invertebrate communities of the northern Chilean rivers are characterised by their marked endemism andspecificity of their community structure in different basins.
Patricio De los Rios Escalante   +3 more
doaj   +1 more source

Leave no stone unturned: individually adapted xerotolerant Thaumarchaeota sheltered below the boulders of the Atacama Desert hyperarid core

open access: yesMicrobiome, 2021
Background The hyperarid core of the Atacama Desert is an extremely harsh environment thought to be colonized by only a few heterotrophic bacterial species.
Yunha Hwang   +11 more
doaj   +1 more source

A new species of Ithome Chambers (Lepidoptera, Cosmopterigidae, Chrysopeleiinae) from the Atacama Desert revealed by morphology and DNA barcodes [PDF]

open access: yesZooKeys, 2020
Morphology and DNA barcode sequences were used to assess the taxonomic status of a micro-moth of the genus Ithome Chambers, 1875 (Lepidoptera, Cosmopterigidae, Chrysopeleiinae), whose larvae feed on inflorescences of Prosopis tamarugo Phil. (Fabaceae), a
Sebastián Espinoza-Donoso   +4 more
doaj   +3 more sources

On the importance of moisture conveyor belts from the tropical eastern Pacific for wetter conditions in the Atacama Desert during the mid-Pliocene [PDF]

open access: yesClimate of the Past, 2023
Geomorphic and sedimentologic data indicate that the climate of today's hyper-arid Atacama Desert (northern Chile) was more humid during the mid-Pliocene to Late Pliocene.
M. Reyers   +7 more
doaj   +1 more source

High-Up: A Remote Reservoir of Microbial Extremophiles in Central Andean Wetlands [PDF]

open access: yes, 2015
The Central Andes region displays unexplored ecosystems of shallow lakes and salt flats at mean altitudes of 3700 m. Being isolated and hostile, these so-called “High-Altitude Andean Lakes” (HAAL) are pristine and have been exposed to little human ...
Albarracín, Virginia Helena   +7 more
core   +3 more sources

Genetic studies of various Prosopis species (Leguminosae, Section Algarobia) co‐occurring in oases of the Atacama Desert (northern Chile)

open access: yesEcology and Evolution, 2021
In the Atacama Desert from northern Chile (19–24°S), Prosopis (Leguminosae) individuals are restricted to oases that are unevenly distributed and isolated from each other by large stretches of barren landscape constituting an interesting study model as ...
Cecilia Bessega   +5 more
doaj   +1 more source

Ancient Leishmaniasis in a highland desert of Northern Chile. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND:Leishmaniasis is an infectious disease endemic today in many areas of South America. METHODOLOGY:We discovered morphologic and molecular evidence of ancient infections in 4 female skulls in the archaeological cemetery of Coyo Oriente, in the ...
Maria Antonietta Costa   +4 more
doaj   +1 more source

Erosion after an extreme storm event in an arid fluvial system of the southern Atacama Desert: an assessment of the magnitude, return time, and conditioning factors of erosion and debris flow generation [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2020
The contribution of an individual extreme storm event to long-term erosion rates has been estimated for the first time in the Atacama Desert. A mean erosion of 1.3 mm has been calculated for the March 2015 event that impacted the southernmost part
G. Aguilar   +7 more
doaj   +1 more source

Characterizing Atacama B-mode Search Detectors with a Half-Wave Plate [PDF]

open access: yes, 2015
The Atacama B-Mode Search (ABS) instrument is a cryogenic ($\sim$10 K) crossed-Dragone telescope located at an elevation of 5190 m in the Atacama Desert in Chile that observed for three seasons between February 2012 and October 2014.
Appel, J. W.   +13 more
core   +1 more source

Bordos and Boundaries: Sustainable Agriculture in the High Altitude Deserts of Northwest Argentina, AD 850-1532 [PDF]

open access: yes, 2014
Bordos were essential for the long-term sustainability of agriculture in the high altitude desert of Antofagasta de la Sierra in Northwest Argentina during the Late (AD 850 – 1480) and Inca Period (AD 1480 – 1532).
Lane, Kevin John   +2 more
core   +1 more source

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