Results 1 to 10 of about 330,943 (251)

Miocene surface uplift and orogenic evolution of the southern Andean Plateau (central Puna), northwestern Argentina. [PDF]

Proc Natl Acad Sci U S A, 2023
Significance The uplift of the Puna Plateau in the South-Central Andes of NW Argentina has long been puzzling. Previous estimates for when the plateau reached its current height have varied widely, from 40 to 10 million years ago (Mya), making it ...
Pingel H, Alonso RN, Bookhagen B, Cottle JM, Mulch A, Rohrmann A, Strecker MR.   +6 more
europepmc   +4 more sources

Isolation of Acanthamoeba Species and Bacterial Symbiont Variability in Puna Salt Plains, Argentina. [PDF]

Environ Microbiol Rep
Acanthamoeba spp. are widespread protists that feed on bacteria via phagocytosis. This predation pressure has led many bacteria to evolve strategies to resist and survive inside these protists.
Mooney R, Rodgers K, Carnicelli S, Carnevale ME, Farias ME, Henriquez FL.   +5 more
europepmc   +3 more sources

Phylogenomics, ecomorphological evolution, and historical biogeography in Deuterocohnia (Bromeliaceae: Pitcairnioideae). [PDF]

Am J Bot
Abstract Premise Species of Deuterocohnia (17 spp.) show extraordinary variation in elevation (0–3900 m a.s.l.) and growth forms, and many have narrow geographic distributions in the west‐central Andes and the Peru‐Chile coast. Previous research using few plastid and nuclear loci failed to produce well‐resolved or supported phylogenies.
Li B, Schütz N, Weising K, Zizka G, Landis JB, Givnish TJ.   +5 more
europepmc   +2 more sources

Species Limits and Hybridization in Andean Leaf-Eared Mice (<i>Phyllotis</i>). [PDF]

Ecol Evol
Diversification of Phyllotis coincided with mid‐ to late‐Pleistocene climate change. Species delimitation revealed cryptic diversity within several nominal forms. Genomic analyses revealed evidence for introgressive hybridization. ABSTRACT Leaf‐eared mice (genus Phyllotis) are among the most widespread and abundant small mammals in the Andean Altiplano,
Quiroga-Carmona M, Liphardt S, Bautista NM, Jayat P, Teta P, Malaney JL, McFarland T, Cook JA, Blumer LM, Herrera ND, Cheviron ZA, Good JM, D'Elía G, Storz JF.   +13 more
europepmc   +2 more sources

Pollination ecology in the tropical Andes: moving towards a cross-scale approach. [PDF]

Biol Rev Camb Philos Soc
ABSTRACT Plant–pollinator interactions structure ecological communities and represent a key component of ecosystem functioning. Pollination networks are expected to be more diverse and specialised in the tropics, but pollination ecology in these regions has been understudied in comparison to other areas.
Rueda-Uribe C, Chautá A, Woodman TL, Lasso E, Pelayo RC, Manrique-Garzón LM, Muñoz MC, Allgayer R, Ashman TL, Bocedi G, Burslem DFRP, Camargo-Martínez PA, Echeverry-Galvis MÁ, González-Arango C, Gubry-Rangin C, Lancaster LT, Layton KKS, Manfredini F, Martel C, Montti L, Papadopulos AST, Raguso RA, Ready J, Rico-Guevara A, Rocabado C, Travis JMJ.   +25 more
europepmc   +2 more sources

Peces de la Puna: Primer registro de Trichomycterus rivulatus Valenciennes 1846 para la Argentina y nuevas localidades para el género (Siluriformes, Trichomycteridae)

Biología Acuática, 2021
La Cuenca del Altiplano-Puna muestra un grupo particular de peces continentales, cuya diversidad biológica es aún poco conocida. Nuevos registros de especies de Trichomycterus son incorporados al listado de los peces que viven en la Puna Argentina: este ...
Julieta María Andreoli Bize, Luis Fernandez, Guadalupe Contreras   +2 more
doaj   +1 more source

Magmatic evolution and architecture of an arc-related, rhyolitic caldera complex: The late Pleistocene to Holocene Cerro Blanco volcanic complex, southern Puna, Argentina

Geosphere, 2022
Through the lens of bulk-rock and matrix glass geochemistry, we investigated the magmatic evolution and pre-eruptive architecture of the siliceous magma complex beneath the Cerro Blanco volcanic complex, a Crater Lake–type caldera complex in the southern
S. D. de Silva, J. Roberge, L. Bardelli, W. Báez, A. Ortiz, J. Viramonte, J. M. Arnosio, R. Becchio   +7 more
semanticscholar   +1 more source

Invasion alert: new record of the exotic Gambusia holbrooki Girard, 1859 in the Puna Austral region, Northwestern of Argentina [PDF]

Neotropical Biology and Conservation, 2019
We report the first record of Gambusia holbrooki Girard, 1859 at elevations above 1,615 m in the Puna Austral, Provincia Catamarca, Argentina. This fish was introduced by intentional release.
Julieta Andreoli Bize, Luis Fernández
doaj   +3 more sources

Minería, descampesinización y desocupación. Trayectorias de movilidad de cuatro mineros de El Aguilar (Jujuy, Argentina, década de 1940 a 2010)

Estudios Atacameños, 2016
Desde un enfoque biográfico, se exploran las trayectorias de movilidad de cuatro mineros que trabajaron en la mina El Aguilar (provincia de Jujuy, Argentina).
María Parodi, Alejandro Benedetti
doaj   +8 more sources

Los Viajes de intercambio y las ferias. Relatos y vigencia del trueque en la Puna jujeña (Argentina)

Estudios Atacameños, 2020
En el mundo andino son frecuentes las referencias al trueque como sistema de intercambios de bienes y servicios, tanto en relación a procesos históricos como del presente.
Liliana Bergesio, Natividad González
doaj   +1 more source