Results 21 to 30 of about 2,951 (164)

Zooarqueología del sitio formativo Soria 2, valle de Yocavil (Catamarca), siglo I d.C.

open access: yesRevista del Museo de Antropologia, 2011
En este trabajo presentamos un análisis exhaustivo de las arqueofaunas recuperadas en el sitio Soria 2 (sudeste del valle de Yocavil o Santa María, provincia de Catamarca), durante los trabajos de campo realizados entre los años 2002 y 2006.
Carlos Raúl Belotti López de Medina
doaj   +3 more sources

Analysis of cytogenetic differentiation in selected species of the family Camelidae: Vicugna pacos and Vicugna vicugna [PDF]

open access: yesActa fytotechnica et zootechnica, 2016
The aim of this study was to analysis of cytogenetic differentation in two species: Vicugna pacos and Vicugna vicugna . Cytogenetic analysis based on blood culture technique. Blood culture were set up in culture medium Limphogrow and Lymphochrome. The cells growth, after 71 hours, was kept in metaphase using colcemid.
openaire   +1 more source

Vicuñas (Vicugna vicugna), Wild Andean Altiplano Camelids [PDF]

open access: yesCase Studies in the Environment, 2020
In these case studies, vicuñas are presented as biocultural components of the Andean altiplano’s socioecological landscape. The environmental history of vicuñas is related to the multiple values of the species, especially of its appreciated fiber as a nature contribution to people. Vicuñas were in risk of extinction, but thanks to conservation policies,
Bibiana Vilá   +2 more
openaire   +1 more source

The first complete mitochondrial genome of an ancient South American vicuña, Vicugna vicugna, from Tulán-54 (3200–2400 B.P. Northern Chile)

open access: yesMitochondrial DNA. Part B. Resources, 2019
The first complete ancient mitochondrial genome of a vicuña (Vicugna vicugna) (3200–2400 B.P.) recovered from the Tulán-54 site (San Pedro de Atacama, Northern of Chile) was sequenced using mitochondrial enrichment by hybridization capture and subsequent
Paloma F. Díaz-Maroto   +2 more
doaj   +1 more source

Una contribución a la determinación taxonómica de la familia Camelidae en sitios formativos del Loa Medio.

open access: yesEstudios Atacameños, 1997
El presente trabajo es una contribución a la discusión metodológica acerca de la determinación taxonómica de camélidos. En él se entregan los resultados obtenidos en recientes investigaciones en torno a la determinación de especies silvestres y ...
María Isabel Cartajena Fasting   +1 more
doaj   +1 more source

Social group dynamics and composition of managed wild vicuñas (Vicugna vicugna vicugna) in Jujuy, Argentina

open access: yesJournal of Ethology, 2018
The vicuna is a high Andean wild camelid that lives year-long in groups. We analyzed the social organization of 98 marked vicunas after capture and live shearing, focusing on group composition, spatial patterns, territoriality and habitat use. The social units analyzed were families, bachelor groups and solo animals.
Yanina Arzamendia   +2 more
openaire   +2 more sources

Cardiovascular Plasticity and Adaptation of High‐Altitude Birds and Mammals

open access: yesIntegrative Zoology, EarlyView.
This schematic depicts the cardiovascular adaptations of mammals and birds to high‐altitude hypoxia. It highlights key phenotypic changes in oxygen transport and cardiac responses, driven by molecular mechanisms including transcriptional regulation and genetic modifications.
Huishang She, Yanhua Qu
wiley   +1 more source

DOSSIER: Osteometría de camélidos sudamericanos

open access: yesRevista del Museo de Antropologia, 2009
La identificación de elementos óseos y su asignación a una especie animal concreta es un tema central para la zooarqueología. Por ello desde la década de 1970 se han estudiado las diferencias morfométricas que permiten la diferenciación de especies que ...
Andrés D. Izeta
doaj   +5 more sources

Sarcoptic mange outbreak decimates South American wild camelid populations in San Guillermo National Park, Argentina

open access: yesPLoS ONE, 2022
Sarcoptic mange epidemics can devastate wildlife populations. In 2014, mange was first detected in vicuñas (Vicugna vicugna) and guanacos (Lama guanicoe) in San Guillermo National Park (SGNP), Argentina.
Hebe del Valle Ferreyra   +6 more
doaj   +2 more sources

Assessing soil and native high Andean grassland quality under grazing: A case study from the wet Puna of Peru

open access: yesGrassland Science, EarlyView.
Abstract High Andean grasslands are vulnerable to changes in their nutritional quality and carbon sequestration capacity, especially in grazing systems. This study evaluated soil quality and native grasses by measuring carbon, physicochemical parameters, and the nutritional quality of predominant species in the wet Puna of Junín, Peru.
Alberto Arias‐Arredondo   +5 more
wiley   +1 more source

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