Alpaca
The alpaca is a species of South American camelid mammal. Traditionally, alpacas were kept in herds that grazed on the level heights of the Andes of Southern Peru, Western Bolivia, Ecuador, and Northern Chile. More recently, alpacas may be found on farms and ranches worldwide, with thousands of animals born and raised annually. Alpacas are especially popular in North America, Europe, and Australia.
There are two modern breeds of alpaca, separated based on their respective region of endemism and fiber type: the Suri alpaca and the Huacaya alpaca. Both breeds produce a highly valued fiber, with Suri alpaca's fiber growing in straight "locks," while Huacaya fiber has a "crimped," wavy texture and grows in bundles. These breeds' fibers are used for making knitted and woven items, similar to sheep's wool.
Alpacas are visually and genetically similar to, and often confused with a relative species, the llamas; however, alpacas are visibly shorter and predominantly bred for their wool, while llamas have long been more highly prized as livestock guardians, and as a pack animal, owing to their nimble mountain-climbing abilities. Nonetheless, all four South American camelids are closely related and can successfully crossbreed. Both the alpaca and the llama are believed to have been domesticated and selectively bred from their wild counterparts — the smaller, fine-haired vicuña and the larger, stronger guanaco, respectively — at least 5,000 to 6,000 years ago.
Alpacas communicate through body language, spitting to show dominance when distressed, fearful, or agitated. Male alpacas are more aggressive than females. In some cases, alpha males will immobilize the head and neck of a weaker or challenging male to show their strength and dominance.
In the textile industry, "alpaca" primarily refers to the hair of Peruvian alpacas. More broadly, it refers to a style of fabric originally made from alpaca hair, such as mohair, Icelandic sheep wool, or even high-quality wool from other breeds of sheep. In trade, distinctions are made between alpacas and the several styles of mohair and luster.
Background
The relationship between alpacas and vicuñas was disputed for many years. In the 18th and 19th centuries, the four South American lamoid species were assigned scientific names. At that time, the alpaca was assumed to be descended from the llama, ignoring similarities in size, fleece, and dentition between the alpaca and the vicuña. Classification was complicated by the fact that all four species of South American camelid can interbreed and produce fertile offspring. The advent of DNA technology made a more accurate classification possible.In 2001, the alpaca genus classification changed from Lama pacos to Vicugna pacos, following the presentation of a paper on work by Miranda Kadwell etal. on alpaca DNA to the Royal Society showing the alpaca is descended from the vicuña, not the guanaco.
An adult alpaca generally is between in height at the shoulders. They usually weigh between. Raised in the same conditions, the difference in weight can be small with males weighing around and females.
Origin and domestication
Alpacas were domesticated thousands of years ago. The Moche people of Northern Peru often used alpaca images in their art. Traditionally, alpaca were bred and raised in herds, grazing on the level meadows and escarpments of the Andes, from Ecuador and Peru to Western Bolivia and Northern Chile, typically at an altitude of above sea level. There are no known wild alpacas, and its closest living relative, the vicuña, is the wild ancestor of the alpaca.The family Camelidae first appeared in the Americas 40–45 million years ago, during the Eocene period, from the common ancestor, Protylopus. The descendants divided into Camelini and Lamini tribes, taking different migratory patterns to Asia and South America, respectively. Although the camelids became extinct in North America around 3 million years ago, they flourished in the South. It was not until 2–5 million years ago, during the Pliocene, that the genus Hemiauchenia of the tribe Lamini split into Palaeolama and Lama; the latter would then split again into Lama and Vicugna upon migrating down to South America.
Remains of vicuña and guanaco dating around 12,000 years have been found throughout Peru. Their domesticated counterparts, the llama and alpaca, have been found mummified in the Moquegua valley, in the South of Peru, dating back 900 to 1000 years. Mummies found in this region show two breeds of alpacas. More precise analysis of bone and teeth of these mummies has demonstrated that alpacas were domesticated from the Vicugna vicugna. Other research, considering the behavioral and morphological characteristics of alpacas and their wild counterparts, seems to indicate that alpacas could find their origins in Lama guanicoe as well as Vicugna vicugna, or even a hybrid of both.
Genetic analysis shows a different picture of the origins of the alpaca. Analysis of mitochondrial DNA shows that most alpacas have guanaco mtDNA, and many also have vicuña mtDNA. But microsatellite data shows that alpaca DNA is much more similar to vicuña DNA than to guanaco DNA. This suggests that alpacas are descendants of the Vicugna vicugna, not of the Lama guanicoe. The discrepancy with mtDNA seems to be because mtDNA is only transmitted by the mother, and recent husbandry practices have caused hybridization between llamas and alpacas. To the extent that many domestic alpacas are the result of male alpacas bred to female llamas, this would explain the mtDNA consistent with guanacos. This situation has led to attempts to reclassify the alpaca as Vicugna pacos.
Breeds
The alpaca is divided into two breeds, Suri and Huacaya, based on its fibers rather than scientific or European classifications.Huacaya alpacas are the most commonly found, constituting about 90% of the population. The Huacaya alpaca is thought to have originated in post-colonial Peru because of its thicker fleece which makes them more suited to survive in the higher altitudes of the Andes after being pushed into the highlands of Peru with the arrival of the Spanish.
Suri alpacas represent a smaller portion of the total alpaca population, around 10%. They are thought to have been more prevalent in pre-Columbian Peru since they could be kept at a lower altitude where a thicker fleece was not needed for harsh weather conditions.
Behavior
Alpacas are social herd animals that live in family groups, consisting of a territorial alpha male, females, and their young ones. Alpacas warn the herd about intruders by making sharp, noisy inhalations that sound like a high-pitched bray. The herd may attack smaller predators with their front feet and can spit and kick. Their aggression towards members of the canid family is exploited when alpacas are used as guard llamas for guarding sheep.Alpacas can sometimes be aggressive, but they can also be very gentle, intelligent, and extremely observant. For the most part, alpacas are very quiet, but male alpacas are more energetic when they get involved in fighting with other alpacas. When they prey, they are cautious and nervous when they feel threatened. They can feel threatened when someone or another alpaca comes up behind them.
Alpacas set their boundaries of "personal space" within their families and groups. They make a hierarchy in some sense, and each alpaca is aware of the dominant animals in each group. Body language is the key to their communication. It helps to maintain their order. One example of their body communication includes a pose named broadside, where their ears are pulled back and they stand sideways. This pose is used when male alpacas are defending their territory. They commonly spit to show dominance when they are in distress, fearful, or feel agitated. Male alpacas are more aggressive than females and tend to establish dominance within their herd group. In some cases, alpha males will immobilize the head and neck of a weaker or challenging male to show their strength and dominance.
When they are young, alpacas tend to follow larger objects and sit near or under them. An example of this is a baby alpaca with its mother. This can also apply when an alpaca passes by an older alpaca.
Training
Alpacas are generally very trainable and usually respond to rewards, most commonly food. They can usually be petted without getting agitated, especially if one avoids petting the head or neck. Alpacas are usually quite easy to herd, even in large groups. However, during herding, it is recommended for the handler to approach the animals slowly and quietly, as failing to do so can result in danger for both the animals and the handler.Alpacas and llamas have started showing up in U.S. nursing homes and hospitals as trained, certified therapy animals. The Mayo Clinic says animal-assisted therapy can reduce pain, depression, anxiety, and fatigue. This type of animal therapy is growing in popularity, and several organizations throughout the United States participate.
Spitting
Not all alpacas spit, but all are capable of doing so. "Spit" is somewhat euphemistic; occasionally, the projectile contains only air and a little saliva, although alpacas commonly bring up acidic stomach contents and project it onto their chosen targets. Spitting is mostly reserved for other alpacas, but an alpaca will also occasionally spit at a human.Spitting can result in what is called a "sour mouth." A sour mouth is characterized by "a loose-hanging lower lip and a gaping mouth."
Alpacas can spit for several reasons. A female alpaca spits when she is not interested in a male alpaca, typically when she thinks that she is already impregnated. Both sexes of alpaca keep each other away from their food or anything they have their eyes on. Most give a slight warning before spitting by blowing air out and raising their heads, giving their ears a "pinned" appearance.
Alpacas can spit up to ten feet if they need to. For example, if another animal does not back off, the alpaca will throw up its stomach contents, resulting in a lot of spit.
Some signs of stress that can lead to their spitting habits include humming, a wrinkle under their eye, drooling, rapid breathing, and stomping their feet. When alpacas show any sign of interest or alertness, they tend to sniff their surroundings, watch closely, or stand quietly in place and stare.
When it comes to reproduction, they spit because it is a response triggered by the increased progesterone levels, which is associated with ovulation.