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Guanaco (Lama guanicoe)
Interesting Creatures….
Kaieteur News – The guanaco (Lama guanicoe) is a camelid native to South America, closely related to the Llama. Its name comes from the Quechua word, huanaco (modern spelling wanaku). Young guanacos are called chulengos. Guanacos are one of two wild South American camelids, the other being the Vicuña, which lives at higher elevations.
CHARACTERISTICS
Guanacos stand between 1.0 and 1.3 m (3 ft 3 in and 4 ft 3 in) at the shoulder, body length of 2.1 to 2.2 m (6 ft 11 in to 7 ft 3 in), and weigh 90 to 140 kg (200 to 310 lb). Their colour varies very little (unlike the domestic llama), ranging from a light brown to dark cinnamon and shading to white underneath. Guanacos have grey faces and small, straight ears.
Guanacos are one of the largest terrestrial mammals native to today’s South American. Other terrestrial mammalian mega fauna to weigh similar to or exceed guanaco include the tapirs, the marsh deer, the white-tailed deer, the spectacled bear, and the jaguar.
Guanacos have thick skin on their neck, a trait also found in their domestic counterparts, the llama and in their relatives, the wild vicuña and domesticated alpaca. This protects their neck from predator attacks. Bolivians use the neck-skin of these animals to make shoes, flattening and pounding the skin to be used for the soles. In Chile, hunting is allowed only in Tierra del Fuego, where the only population not classified as endangered in the country resides. Between 2007 and 2012, 13,200 guanacos were legally hunted in Tierra del Fuego.
HEMOGLOBIN LEVELS
Guanacos are often found at high altitudes, up to 4,000 meters above sea level, except in Patagonia, where the southerly latitude means ice covers the vegetation at these altitudes. For guanacos to survive in the low oxygen levels found at these high altitudes, their blood is rich in red blood cells. A teaspoon of guanaco blood contains about 68 million red blood cells – four times that of a human.
GUANACO FIBRE
Guanaco fibre is particularly prized for its soft, warm feel and is found in luxury fabric. The guanaco’s soft wool is valued second only to that of the vicuña. The pelts, particularly from the calves, are sometimes used as a substitute for red fox pelts, because the texture is difficult to differentiate. Like their domestic descendant, the llama, the guanaco is double-coated with coarse guard hairs and a soft undercoat, the hairs of which are about 16–18 µ in diameter and comparable to the best cashmere.
POPULATION AND DISTRIBUTION
Guanacos inhabit the steppes, scrublands and mountainous regions of South America. They are found in the altiplano of Peru, Bolivia and Chile, and in Patagonia, with a small population in Paraguay. In Argentina, they are more numerous in Patagonian regions, as well as in places such as Isla Grande de Tierra del Fuego. In these areas, they have more robust populations, since grazing competition from livestock is limited. Guanaco responded to forage availability, occupying zones with low to intermediate food availability in the breeding season, and those with the highest availability in the non-breeding season. Estimates, as of 2011, place their numbers at 400,000 to 600,000; 466,000–520,000 in Argentina, 150-200 in Bolivia, 66,000 in Chile, 100 in Paraguay, 3,500 in Peru. A small population introduced by John Hamilton exists on Staats Island in the Falkland Islands, with a population of around 400 as of 2003.
Guanacos live in herds composed of females, their young, and a dominant male. Bachelor males form separate herds. While reproductive groups tend to remain small, often containing no more than 10 adults, bachelor herds may contain as many as 50 males. When they feel threatened, guanacos alert the herd to flee with a high-pitched, bleating call. The male usually runs behind the herd to defend them. They can run at 56 km (35 mi) per hour, often over steep and rocky terrain. They are also excellent swimmers. A guanaco’s typical lifespan is 20 to 25 years. Natural predators of the guanaco include pumas and the culpeo.
MATING SEASON
Mating season occurs between November and February, during which males often fight violently to establish dominance and breeding rights. Eleven-and-a-half months later, a single chulengo is born. Chulengos are able to walk immediately after birth. Male chulengos are chased off from the herd by the dominant male around one year of age.
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