Results 61 to 70 of about 2,951 (164)

Vicuña conservation and poverty alleviation? Andean communities and international fibre markets

open access: yesInternational Journal of the Commons, 2009
Vicuna (Vicugna vicugna) fiber is produced by extremely low-income communities that inhabit the harsh environment of the Andes in Argentina, Chile, Peru and Bolivia.
Gabriela Lichtenstein
doaj   +1 more source

Characterization of the vicuña (Vicugna vicugna) fibre production in the Cusco Region, Perú

open access: yesRevista de Investigaciones Veterinarias del Perú, 2019
Con el objetivo de describir el diámetro de fibra y el peso de vellón de vicuñas en la Región Cusco, se evaluaron 302 muestras de fibra de vicuñas crías, juveniles y adultas mediante un equipo OFDA 2000®, colectadas en diferentes capturas programadas (denominadas Chaccus) bajo dos sistemas de manejo: silvestría y semicautividad. Se registró, además, el
Pacheco C., Joel   +4 more
openaire   +2 more sources

Responses of a large herbivore to predation risk are modulated by intrinsic and extrinsic factors

open access: yesEcosphere, Volume 16, Issue 5, May 2025.
Abstract Prey species can perceive and respond to spatiotemporal variation in predation risk to increase survival. In addition to adjusting spatial and temporal activity patterns to avoid predation, prey employ other antipredator behaviors, such as vigilance and fleeing, and these behaviors can be further modulated by intrinsic, environmental, and ...
Michael S. Muthersbaugh   +7 more
wiley   +1 more source

Etología de camélidos y arte rupestre de la Subregión río Salado (norte de Chile, II Región)

open access: yesEstudios Atacameños
Este trabajo trata sobre un estilo de arte rupestre del Período Formativo Temprano registrado en la precordillera de la Subregión río Salado. El estilo, llamado Confluencia, se caracteriza principalmente por el detalle con que fueron retratados los ...
Josefina González A
doaj   +1 more source

Mapping and Geospatial Analysis of Ancient Terrace Agricultural Systems in Lucanas Province, Peruvian Andes, Based on Satellite Imagery, High‐Resolution DSMs, and Field Surveys

open access: yesGeoarchaeology, Volume 40, Issue 2, March/April 2025.
ABSTRACT This paper presents a unique set of maps and geospatial data covering 16 ancient terrace agricultural systems in the upper part of the Río Grande de Nasca drainage. These systems are located on the western Andean flank (1200 and 3800 m asl), in the districts of Llauta, Laramate, and Ocaña in Lucanas province, Ayacucho region, southern Peru (14.
Christian Mader   +11 more
wiley   +1 more source

Etología de camélidos y arte rupestre de la Subregión río Salado (norte de Chile, II Región)

open access: yesEstudios Atacameños, 2002
Este trabajo trata sobre un estilo de arte rupestre del Período Formativo Temprano registrado en la precordillera de la Subregión río Salado. El estilo, llamado Confluencia, se caracteriza principalmente por el detalle con que fueron retratados los ...
Josefina González A
doaj  

VASCULARIZACION DEL PARENQUIMA TESTICULAR DE LA VICUÑA vicugna vicugna

open access: yesRevista Investigaciones Altoandinas - Journal of High Andean Investigation, 2013
<p>Investigaciones sobre la vascularización del testículo de vicuñas aún no fueron estudiadas con técnicas de corrosión y formación de moldes vasculares para la comprensión de la fisiología reproductiva de esta especie. El objetivo del estudio detalló la organización vascular del parénquima testicular de la vicuña tanto arterial y venosa.
LUIS OLIVERA MAROCHO   +2 more
openaire   +1 more source

Taming interleukin‐12: Engineering of bispecific antibody‐based IL‐12 mimetics with biased agonism capacities

open access: yesProtein Science, Volume 34, Issue 3, March 2025.
Abstract In this work, we have generated bispecific interleukin (IL)‐12 surrogate agonists based on camelid‐derived single‐domain antibodies (sdAbs) targeting the IL‐12 receptor (IL‐12R) subunits IL‐12Rβ1 and IL‐12Rβ2. Following immunization and antibody display‐based paratope isolation, respective sdAbs were combinatorially reformatted into a ...
Britta Lipinski   +19 more
wiley   +1 more source

Vicuna: Vicugna vicugna

open access: yes, 2018
The species is classified as Least Concern given its wide range of distribution, population size, the increasing trend, and its occurrence in several protected areas, agreeing with the last assessment in 2008. However, it is important to note that improved conservation programs and tighter control at local,national and international levels are ...
Acebes, P.   +6 more
openaire   +1 more source

Variabilidad y estructura genética en dos poblaciones de Vicugna vicugna (Camelidae) del norte de Chile Genetic variability and structure in two populations of Vicugna vicugna (Camelidae) from northern Chile

open access: yesRevista Chilena de Historia Natural, 2003
RESUMEN Se estudiaron dos poblaciones de Vicugna vicugna pertenecientes a la Primera y Segunda regiones del país, en base a la determinación electroforética de 28 loci presumtivos.
M. CECILIA NORAMBUENA, MARCO PAREDES
doaj  

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