This article was accepted into the corpus but its outbound wikilinks were never NER-processed — typical at the deepest BFS hop or when the run's entity cap was reached. No expansion funnel to show.
| Lama guanicoe | |
|---|---|
| Name | Guanaco |
| Status | LC |
| Status system | IUCN3.1 |
| Genus | Lama |
| Species | guanicoe |
| Authority | (Müller, 1776) |
Lama guanicoe is a wild South American camelid native to the southern Andes, Patagonian steppes, and coastal plains. It is a key herbivore in ecosystems shaped by Andes, Patagonia, and Atacama Desert climatic gradients, and it figures in the cultural histories of indigenous peoples such as the Mapuche and Tehuelche. The species has been the subject of research by institutions including the Smithsonian Institution and the Royal Society for its ecological roles and adaptive physiology.
The species was described in 1776 by Philipp Müller and placed in the genus Lama, which also contains the domestic llama and the extinct taruca-related taxa debated in older literature. Molecular phylogenetics using mitochondrial DNA and nuclear markers by research groups at the Max Planck Society and University of Cambridge support a close relationship with Lama glama and Vicugna vicugna, and clarify divergence times relative to the Pleistocene glaciations studied by researchers at the University of California, Berkeley. Common names include "guanaco" in Spanish-speaking countries and regional names recorded by explorers from the Royal Geographical Society.
Guanacos are medium-sized camelids with a slender neck, long limbs, and a compact body adapted for endurance across open landscapes; morphological descriptions are found in monographs published by the American Museum of Natural History and the Natural History Museum, London. Adult shoulder height ranges reported by field studies at the Instituto de la Patagonia and CONICET average 1.0–1.2 m, with weight varying between 90–140 kg depending on sex and region, as documented in surveys by the IUCN specialists. Their pelage is typically tawny with a white underbelly and darker face; pelage variations and molting patterns were recorded during expeditions supported by the Royal Society of London and the National Geographic Society.
The species occupies a broad latitudinal range from northern Peru and Bolivia through Chile and Argentina to Tierra del Fuego, inhabiting arid plains, steppe, scrubland, and high Andean plateaus documented by the United Nations Environment Programme and regional parks such as Torres del Paine National Park and Los Glaciares National Park. Population densities differ between protected areas managed by agencies like the National Park Service (Argentina) and unprotected rangelands used historically by settlers recorded in archives at the National Library of Argentina. Observations in the Atacama Desert coastal zones and Patagonian grasslands show habitat use influenced by elevation, precipitation, and anthropogenic land-use change analyzed by teams at the University of Buenos Aires.
Guanacos function as browsers and grazers within trophic networks studied by ecologists affiliated with the Smithsonian Tropical Research Institute and the Max Planck Institute for Ornithology; they influence plant community composition across Patagonian steppe and Andean puna ecosystems. Social organization includes family groups, bachelor bands, and territorial males as described in long-term studies by researchers from the University of Zurich and the University of Chile. Predation pressure from puma and competition with introduced herbivores such as European rabbit and feral horse have been documented in ecological assessments commissioned by the World Wildlife Fund. Movements include seasonal migrations in some populations documented by telemetry projects at the University of Washington and satellite tracking initiatives supported by the Global Biodiversity Information Facility.
Breeding systems are polygynous, with dominant males defending territories and harems during a rut documented in behavioral studies at the University of Sydney and the Pontifical Catholic University of Chile. Gestation lasts approximately 11–12 months, producing typically a single precocial cria capable of standing and nursing within an hour, observations reported by veterinary teams from the Royal Veterinary College and field veterinarians associated with the Wildlife Conservation Society. Age at sexual maturity, longevity, and mortality rates have been quantified in cohort studies undertaken by the Instituto de Ecología and university research groups involved in long-term demographic monitoring.
Human interactions include historical hunting and exchange by indigenous groups such as the Aonikenk and use of soft underwool by artisanal communities recorded in ethnographic studies at the Museo de la Plata and the Museo Nacional de Historia Natural (Chile). Colonial-era accounts from the British Museum and the Biblioteca Nacional de Chile document changes after European contact, while modern management involves livestock producers, conservation NGOs like Wildlife Conservation Network, and governmental agencies such as CONAF and Argentine provincial authorities. Guanacos are featured in ecotourism at reserves like Península Valdés and in textile markets where guanaco fiber is traded under regulations overseen by agencies including the Convention on International Trade in Endangered Species of Wild Fauna and Flora.
The species is evaluated by the IUCN Red List where populations are monitored by collaborative programs involving the World Conservation Monitoring Centre and national research institutes including CONICET and Chile's Instituto de Salud Pública. Threats include habitat fragmentation from energy projects cataloged by the Inter-American Development Bank, competition and disease transmission from domestic sheep and goat farming documented in veterinary studies from the University of León (Spain), and illegal hunting reported by local NGOs such as Fundación Huemul. Conservation actions include protected area designation, community-based management supported by the United Nations Development Programme, and research into population genetics carried out at universities including the Universidad de Chile and the University of Buenos Aires.