Results 21 to 30 of about 2,863 (146)

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

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

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

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

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

Two centrifugal flotation techniques for counting gastrointestinal parasite eggs and oocysts in alpaca faeces

open access: yesJournal of Veterinary Research, 2022
The alpaca (Vicugna pacos) is a camelid native to South America, but the species has wide distribution outside its natural habitat and is found in various countries on other continents, Poland being one in Europe.
Maria Pyziel-Serafin Anna   +5 more
doaj   +1 more source

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

The Neocolonial Tightening of CITES: How Northern Narratives Marginalize Southern Conservation

open access: yesConservation Letters, Volume 19, Issue 2, March/April 2026.
ABSTRACT CITES has demonstrated a persistent trend of regulatory tightening over five decades, raising critical questions about both equity and effectiveness in global conservation governance. This study examines how structural power imbalances and dominant Northern narratives within the Convention have systematically marginalized pluralistic ...
Youmin Lian, Md. Ziaul Islam
wiley   +1 more source

Severe hyperglycaemia associated with prolonged isoflurane anaesthesia in an alpaca (Vicugna pacos)

open access: yesVeterinary Record Case Reports, Volume 14, Issue 1, February 2026.
Abstract Alpacas possess distinct glucose and insulin regulatory mechanisms compared with other species, often maintaining higher baseline blood glucose as a normal physiological adaptation. Inhalant anaesthetic agents can further disrupt glucose, insulin and potassium homeostasis, particularly during prolonged procedures.
Andrea Basler   +3 more
wiley   +1 more source

Food limitation reduces risk avoidance by prey, but does not increase kill rates in a simple predator–prey system

open access: yesEcosphere, 2023
Prey often induce antipredator behaviors when balancing food acquisition against safety. The starvation–predation hypothesis (SPH) posits that, during food shortages, the risk of starvation requires prey to forego antipredator behavior to increase ...
Francisco J. Molina   +5 more
doaj   +1 more source

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