Lama glama
llama

Llamas have a native range all along the Andes mountains, but are not found in the wild. Lama glama can be found commercially throughout North America, Europe and Australia. An indispensable pack animal, herds of L. glama are maintained extensively by the native human populations in Argentina, Ecuador, Chile, Bolivia and Peru. ("Llama", 2004; Microsoft Encarta, 2004b)

The Andean highlands, especially the Altiplano of southeast Peru and western Bolivia, is the natural habitat of L. glama. These plateaus are covered with low growth, including various shrubs stunted trees and grasses. In the Altiplano region, the northern reaches are reasonably temperate and mountainous, whereas the south is drier, desert-like and inhospitable. Llamas are known to inhabit elevations no greater than 4,000 meters above sea level. ("Llama", 2004; Microsoft Encarta, 2004a; Microsoft Encarta, 2004b)

Llamas, like other camelids have long necks, limbs, rounded muzzles, protruding lower incisors, and a cleft upper lip. South American camelids, including llamas, alpacas, and guanacos do not have humps as do Old World camelids. Llamas are the largest member of this group. They have long shaggy pelage which varies greatly in color. A common coat pattern is reddish brown fur with mottled patches of white or yellow. ("Llama", 2004; Dias de Avila Pires, 2004; Parera, 2002; T., 2002; Vaughan, Ryan, and Czaplewski, 2000)

Llamas are fairly large mammals standing about 1.21 m at the shoulder and about 1.2 m in length from head to tail. Adult L. glama can weigh from 130 to 155 kg. Unlike some other Artiodactyla, L. glama has a two toed foot with a thick leathery pad on each foot’s sole. ("Llama", 2004; Dias de Avila Pires, 2004; T., 2002; Vaughan, Ryan, and Czaplewski, 2000)

Llamas have an unusually high content of hemoglobin in their bloodstream and oval shaped red blood corpuscles, both of which are adaptaions for surviving in an oxygen-poor, high altitude environment. Like other members of the Camelidae, L. glama has distinctive teeth. Adult llamas retain only one upper incisor, and the lower incisors clip vegetation against hardened gums. Other distinctive features about this species include the reduction of the premolars to 2/1 and a considerable diastema between the incisors and premolars. ("Llama", 2004; Dias de Avila Pires, 2004; T., 2002; Vaughan, Ryan, and Czaplewski, 2000)

Well cared for domesticated individuals can live in excess of 20 years but most live for about 15 years. (Honolulu Zoo, 2004; The Rolling Hills Zoo, 1991)

Llamas are gregarious and highly social, living in groups of up to 20 individuals. Llama groups consist of about 6 breeding females and their offspring from the current year. This group is led by a male llama that aggressively defends his position by engaging in dominance fighting. This fighting consists of the male trying to wrestle the opponent (a usurping male) to the ground by biting his limbs and wrapping his own long neck around his opponent’s. Dominance is achieved when the opponent has been pushed to the ground and has properly submitted to the victor. Llama submission stance is lying sidways on the ground with the neck lowered, and the tail raised. (Honolulu Zoo, 2004; Lewerenz, 2001; Microsoft Encarta, 2004a; Reebs, 2002)

Llamas are also known to use communally shared locations (latrines) for feces, possibly as a territorial demarcation. Like other camelids, llamas are very vocal, using a variety of low and yammering calls. Llamas make especially distinct vocalizations in the presence of predators such as canids to warn other group members of danger. Llamas are aggressive towards predators and have been reported charging, kicking, biting, and spitting at those they deem a threat. (Honolulu Zoo, 2004; Lewerenz, 2001; Reebs, 2002; T., 2002)

Home Range

Little is known of llamas in the wild, but their behavior in captivity resembles in many ways that of their wild cousins, L. guanicoe. Llamas are highly territorial and, although kept in captivity, individuals will still defend areas that they have laid claim too (be that outside a fenced area or not.) Generally llamas will claim anywhere in eyeshot for territory but will adopt a pasture where they are introduced. If sheep are present, most llamas will adopt them into the family group and defend them as if they were llamas themselves. Because of their aggression and protectiveness towards other animals, llamas are commonly used as as guard animals for sheep, goats, and horses. (Ingram and Krowka, 1999; Microsoft Encarta, 2004a; The Rolling Hills Zoo, 1991)

Llamas will vocalize to warn the herd of predators and to express vexation. Communal feces piles may serve as a specific herd's territorial demarcation, and may function through both visual and scent components. Tactile communication is important between rival males, as well as between mothers and their young. The presence of a submissive position indicates that llamas use body postures as visual signals of dominance. (Dias de Avila Pires, 2004; Ingram and Krowka, 1999; Lewerenz, 2001)

Llamas browse on low shrubs, lichens, and mountain vegetation. Llamas make use of native shrubs and grasses including Parastrephia sp., Baccharis sp. (shrubs) as well as Munroa sp., Eragrostis sp., and Triseobromus sp. (grasses). Llamas tend to live in very dry climates and get most of the moisture from their food. Camelids consume about 2 to 3 gallons of water, and 1.8% of their body weight in dry food (grass, hay) per day. Llamas have three stomachs and are ruminants. When kept as domestic animals llamas adapt well to the same diet as sheep and goats. (Anderson, 2002; The Rolling Hills Zoo, 1991; Vaughan, Ryan, and Czaplewski, 2000)

Most predation on llamas is by small canids, including coyotes, although pumas and humans were the greatest exploiters of llama populations before the species underwent geographic redistribution throughout the world. ("Llama", 2004; Stamberg and Wilson, 1997)

Llamas are about the ecological equivalant of a large deer. They browse on low vegetation and their padded foot does less damage to the grazing area than the hooves of other livestock. (Stamberg and Wilson, 1997)

There are no reported negative effects on human economies created by llamas.

Llamas are domesticated animals, and so are inherently important to human economies. The thick, coarse wool of llamas is valuable. These animals are sheared every two years, yielding about 3 kg of fleece. Farmers have used L. glama to curb predation of sheep by canids. By incorporating a few llamas into their sheep or goat flocks, studies indicate that predation drops sharply. Llamas have also been used as golf caddies and as farmyard pets. Historically llamas were used to haul loads over the Andean mountains because of their ability to carry burdens in excess of 60 kg for up to 30 km per day. ("Llama", 2004; Dias de Avila Pires, 2004; Honolulu Zoo, 2004; Lewerenz, 2001)

Llamas are not endangered and are in fact quite widespread today. There are nearly 3 million individuals worldwide with nearly 70% of the population located in Bolivia. (Parera, 2002)