Results 51 to 60 of about 11,527 (239)

Preliminary analysis of fatty acids recovered from archaeological pottery of the lower course of the Colorado River (North-Eastern Patagonia): Contributions to the hunter-gatherers subsistence patterns [PDF]

, 2015
En este trabajo se presentan los resultados preliminares de los análisis de ácidos grasos realizados en tiestos cerámicos recuperados de tres sitios arqueológicos del curso inferior del río Colorado (Norpatagonia oriental, Argentina).
Constenla, Diana Teresita, Martinez, Gustavo Adolfo, Stoessel, Luciana   +2 more
core   +1 more source

Growth and reworking of freshwater microbially‐mediated carbonates in wind‐stressed lake margins (Lago Sarmiento, Southern Patagonia)

Sedimentology, EarlyView.
ABSTRACT Understanding the biotic and abiotic influences on the deposition and diagenesis of recent microbial carbonates is crucial for addressing the environmental and ecological significance of ancient organosedimentary structures. This study investigates these factors and their expression in the microstructure of Holocene tufa thrombolites from a ...
Paulo Quezada, Mauricio Calderón, Anelize Bahniuk, Carolina Henríquez, Tatiana Stepanenko, José Pérez‐Donoso, Nicolás Bruna, Larissa Santos, Guilherme Fedalto, Luis Mancini, Leonardo Fadel Cury   +10 more
wiley   +1 more source

Range Management Affects Native Ungulate Populations in Penísula Valdés, a World Natural Heritage [PDF]

, 2013
Sheep rearing is the main productive activity in Patagonian rangelands, where guanacos are the only native ungulate. Ranchers perceive a decrease in range carrying capacity as guanaco numbers increase, therefore guanaco conservation within private ...
Marino, Andrea Ivana, Monjeau, Jorge Adrian, Nabte, Marcela Janina, Rodriguez, Maria Victoria, Saba, Sergio Leonardo   +4 more
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Challenges and opportunities in mitigating sarcoptic mange in wild South American camelids

The Journal of Wildlife Management, Volume 90, Issue 1, January 2026.
Wild South American camelids—vicuña and guanaco—face threats from sarcoptic mange, a contagious skin disease linked to severe population declines. Despite its impact, major gaps remain in understanding disease dynamics. This review summarizes current knowledge, identifies key data and management gaps, and outlines urgent actions for effective ...
Alynn M. Martin, Emiliana Isasi‐Catalá, Marília Salgado‐Caxito, Ana Gallegos, Leonardo Hostos‐Olivera, Paulo Colchao‐Claux, Steve Smith, L. Fabian Beltran‐Saavedra, Catherine Dougnac, Camila Germana, Mariana Montoya, Scott Carver, Paul C. Cross, Christian Walzer   +13 more
wiley   +1 more source

Sexual and Age‐Related Morphological Variations in the Pelvis of Lama guanicoe guanicoe (Artiodactyla: Camelidae)

International Journal of Zoology, Volume 2026, Issue 1, 2026.
This study explores the scope of sexual and age‐related discrimination in the hemipelvises of Lama guanicoe guanicoe (Müller 1776), a species that lacks postcranial secondary sexual characteristics. Using two‐dimensional geometric morphometric techniques, changes in shape and size of the coxae bones from 50 individuals of both sexes and varying ...
Anahí Hernández, Cristian A. Kaufmann, G. Lorena L’Heureux, Lipi Buch   +3 more
wiley   +1 more source

Estimación de la edad de guanaco (Lama guanicoe) a partir de los dientes incisivos: un aporte metodológico para la construcción de perfiles de mortalidad

Revista del Museo de Antropologia, 2017
El guanaco fue el principal recurso para los cazadores-recolectores que habitaron las regiones pampeana y patagónica de Argentina. Este ungulado jugó un rol fundamental en las esferas económica, social e ideológica de estas sociedades durante el Holoceno.
Cristian A. Kaufmann, María Clara Alvarez, S. Iván Pérez   +2 more
doaj   +1 more source

Structural and Functional Properties of Araucaria araucana and Araucaria angustifolia Seed Proteins as a Plant‐Based Food Source

Sustainable Food Proteins, Volume 3, Issue 4, December 2025.
Morphologically, A. angustifolia seeds were significantly larger, while A. araucana exhibited more regular, triangular shapes. Proximate composition revealed a carbohydrate‐rich profile in both species, with a significantly higher lipid content in A. araucana. Amino acid analysis showed similar profiles, with high levels of aspartic and glutamic acids.
Juliana Ripari Garrido, Mariela Patrignani, Paula A. Conforti   +2 more
wiley   +1 more source

Löpönvaara: A new phosphorus‐rich iron meteorite from Finland

Meteoritics &Planetary Science, Volume 60, Issue 10, Page 2442-2457, October 2025.
Abstract Löpönvaara is a rare new phosphorus‐rich iron meteorite find from Löpönvaara, Finland. The ~164 g meteorite was discovered in 2017 from the same area as the ungrouped Lieksa pallasite. Löpönvaara was classified as an ungrouped iron meteorite due to its unusually high concentration of P (>4 wt%), coupled with a moderate concentration of Ni (~11 
Laura Kotomaa, Markku Väisänen, Jussi S. Heinonen, Ermei Mäkilä, Hugh O'Brien, Arto Peltola   +5 more
wiley   +1 more source

Deep Source Regions for Back‐Arc Volcanism in the Patagonian Slab Window Imaged by Finite Frequency P and SH Body Wave Tomography

Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract The subduction of the Chile Ridge beneath South America beginning 12–16 Myr ago opened a gap in the subducting slab beneath southern Patagonia, which migrated northward and is located today at 46°S. Geodynamic processes associated with the slab window are poorly understood.
Walid Ben‐Mansour, Valerie Maupin, Douglas A. Wiens, Andreas Richter   +3 more
wiley   +1 more source

Textile art in guanaco fiber: (im)material heritage of Patagonian peasantry. Past and present [PDF]

, 2018
La artesanía textil en fibra de guanaco enlaza el pasado precolonial de la región patagónica, recuperando el proyecto comunitario de los pueblos originarios.
Dreidemie, Patricia
core