Lama pacosalpaca

By Alexandra Castillo-RuizLast updated: April 29, 2007

Geographic Range Habitat Physical Description Reproduction Lifespan/Longevity Behavior

Communication and Perception Food Habits Predation Ecosystem Roles Economic Importance for Humans: Positive Economic Importance for Humans: Negative

Conservation Status Other Comments

Contributors References

Geographic Range

The native range of Lama pacos includes the central and southern Andes from Peru to Argentina at elevations of up to 4800 meters. Remains of alpaca found at elevations closer to sea levels suggest that alpaca once had a wider geographical distribution and that the reduction of its range started with the arrival of the Spanish conquistadores and their introduced livestock. In the 1980s alpacas started to be exported to other countries for farming purposes. Nowadays, alpacas can be found in countries such as the United States, New Zealand, Australia, and the Netherlands, among others. In spite of the increase in alpaca farming outside its native territory, it has been es-timated that 99% of the world population of alpacas is found in South America. (Al paca Own ers and Breed ers As so ci a tion, 2007 ; "Camélidos", 2007; Nowak, 1999; Wheeler, et al., 1992)

Biogeographic Regions nearctic

o introduced palearctic

o introduced neotropical

o native australian

o introduced

Habitat

Alpacas inhabit the Andean Altiplano, i.e. the Andean high plateau, preferably near wet areas. The climate of the Altiplano is severe, reaching temperatures of below 0°C during the night and 16°C during the day. Annual precipitation ranges from 400 to 700 mm. In this semi-arid region, grasses prevail. Alpacas are dependent on humans. There are reports of feral populations of lla - mas in South America; however, that does not seem to be the case for alpacas. (Bonacic and Franklin, 2001; "Camélidos", 2007; Vera, 2000; Wheeler, 2003)

Habitat Regions temperate tropical terrestrial

Terrestrial Biomes savanna or grassland mountains

Other Habitat Features agricultural

Range elevation1000 to 4800 m3280.84 to 15748.03 ft

Physical Description

Alpacas are the smallest of the domesticated camelid species. The weight of an adult alpaca ranges from 55 to 65 kg. Head and body length ranges from 1200 to 2250 mm, tail length ranges from 150 to 250 mm, and shoulder height from 900 to 1300 mm. Lama pacos has a slender body and neck. The head is small and the ears are big and pointed. The coat is either uniform or multi-color. According to “The Alpaca Owners and Breeders Association” alpaca coats have up to 22 colors, from white to black and brown. In adult males the upper and lower incisors and the lower canines develop into fighting teeth or fangs that can be more than 3 cm long. In females these teeth do not develop as much as in males. Other than the difference in tooth morphology, sexual dimorphism in alpacas is minor. (Al paca Own ers and Breed ers As so ci a tion, 2007 ; Bonacic and Franklin, 2001; Franklin, 1982; "Camélidos", 2007; Nowak, 1999; "Lla mas and Al pacas. Herd health", 2006)

There are two breeds of Lama pacos: Huacaya and Suri. Huacaya are the most abundant. The body, legs, and neck of Huacaya are covered by long, crimpy hair, whereas the head and feet are covered by short hair. In Suris the hair is silkier and grows faster than in Huacayas. Additionally, in Suris the hair grows parallel to the body and has no crimp. ("Camélidos", 2007)

Other Physical Features endothermic homoiothermic bilateral symmetry

Sexual Dimorphism sexes alike ornamentation

Range mass55 to 65 kg121.15 to 143.17 lb

Range length1200 to 2250 mm47.24 to 88.58 in

Reproduction

Lama pacos is a polygynous species. Some breeders report that dominant males form harems of 5 to 10 females. (Hvid ston, 2004 )

Mating System polygynous

Alpacas are induced ovulators. They can breed year round. If the female is ready to mate, she will allow mounting and then copulation by assuming sternal recumbency shortly after intromis-sion. The male produces a vocalization known as "orgling" during copulation. A chemical signal in the semen seems to trigger the preovulatory LH (luteinizing hormone) surge. Ovulation occurs 24 hours after mating. Once a female is pregnant, she will refuse any attempts by the male to mount her. (Adams, et al., 2005; "Lla mas and Al pacas. Re pro duc tive Phys i ol ogy", 2006 )

Gestation takes between 242 and 345 days. If both sexes are kept together year round, parturition occurs during the rainy season from December to March. Females can become pregnant approxi-mately 10 days after parturition. Alpacas commonly have a single young, with birth occurring between late morning and midafternoon. At birth, alpaca weights range from 8 to 9 kg. Alpacas are precocial. Crias is the term used to designate alpaca offspring up to 6 months of age. Alpacas are weaned at 6 to 8 months. Females reach sexual maturity at 12 to 15 months, whereas males reach it around 30 to 36 months. ("Al paca Notes No.1. Re pro duc tion", 2000 ; Novoa and Wheeler, 1984; Nowak, 1999; Pol lard and Pol lard, 2002 )

All South American camelids can crossbreed and produce fertile offspring. However, crosses be-tween domestic and wild South American camelids, do not normally occur in nature. The prod-uct of crossing a llama and an alpaca is a Huarizo, which shows intermediate physical character-istics. The product of crossing a vicugna and an alpaca is a Pacovicuna, which shows resem-blance to the vicugna. The latter has received considerable attention due to the high quality of the fiber that it produces. ("Camélidos", 2007; Wheeler, 2003)

Key Reproductive Features iteroparous year-round breeding gonochoric/gonochoristic/dioecious (sexes separate) sexual induced ovulation fertilization viviparous

Breeding intervalBreeding occurs once a year.

Breeding seasonBreeding may occur throughout the year.

Range number of offspring1 to 1

Average number of offspring1.04AnAge

Range gestation period242 to 345 days

Average gestation period190.5 days

Range weaning age6 to 8 months

Range age at sexual or reproductive maturity (female)12 to 15 months

Range age at sexual or reproductive maturity (male)30 to 36 months

After parturition, alpacas neither lick their young nor touch the placenta. Males stay far away from females during parturtion. Mothers watch their newborns closely but do not approach their young until they finally stand up. Then, mothers readily approach their young so that the new-borns can get their first milk, or colostrum, which contains antibodies and nutrients. If newborns have problems finding the udder, mothers help them by changing their own posture. Some young approach unrelated females for milk; these unrelated females typically react by allowing them to nurse, by walking away, or by spitting. If a stranger gets close to a mother and her young, the mother spits or lunges and may refuse to leave her young.

Parental Investment precocial pre-fertilization

o provisioning o protecting

female pre-hatching/birth

o provisioning female

o protecting female

pre-weaning/fledging o provisioning

female

Lifespan/Longevity

The longevity of Lama pacos in the wild is 5 to 10 years, whereas in captivity it is approximately 20 years. (Ley and Ley, 2006; Ley and Ley, 2006)

Average lifespanStatus: captivity20 years

Typical lifespanStatus: wild5 to 10 years

Average lifespanStatus: captivity20 years

Average lifespanStatus: captivity25.8 years

AnAge

Behavior

Alpacas are social animals. They live in herds that are not only composed of other alpacas but also include other species such as lla mas , goats, and sheep. Some research points to the existence of hierarchical social order in alpacas. (Bonacic and Franklin, 2001; "Situación ac tual de los camélidos su damer i canos en Bo livia", 2005 )

Key Behaviors terricolous diurnal motile nomadic sedentary social dominance hierarchies

Communication and Perception

According to their breeders, alpacas use most of their body parts for communication. A pose de-scribed as broadside is ascribed to males defending their territory. It is characterized by standing sideways, arched neck, rigid tail pointing up, and ears pulled back. A sign of danger in the envi-ronment elicits an alert posture. In this posture the alpaca erects its body and directs the ears to the potential source of danger. If the animal feels threatened, it will elicit an alarm call and either flee or go to investigate the source of danger. A stand off posture is taken to show dominance. It is seen when two alpacas are standing extremely close to each other. Their bodies take a rigid po-sition, ears are pulled back, and tail and neck are held high. This posture may be accompanied by spitting, pushing, and more aggressive behaviors. Lastly, a posture called submissive crouch is seen in youngsters and low-rank individuals. In this posture, the neck is lowered to the ground and the tail is pushed onto the back. Alpacas engage in spitting when they are in distress, fearful, or to show dominance. (Ley and Ley, 2006)

Alpacas produce a broad range of vocalizations. The most common is the humming vocalization, which is produced under a variety of circumstances, such as distress or a change in the environ-ment. A snortling vocalization is a warning signal among alpacas. Clucking is a sound mothers use with crias. Grumbling is produced to indicate food territoriality. Screeching is produced when animals become frustrated over food. Stressful situations cause the animals to elicit a loud scream. Danger causes alpacas to elicit high-pitched vocalizations known as alarm calls. Finally, orgling is produced when males are mating. (Ley and Ley, 2006)

Alpacas use communal dung piles to deposit urine and feces. As has been argued for other South American camelids, these piles may be a source for chemical communication among alpacas. ("Lla mas and Al pacas. Man age ment", 2006 )

Communication Channels

visual tactile acoustic chemical

Perception Channels visual tactile acoustic chemical

Food Habits

Lama pacos is a strict grazer. In a highland region of Chile, Castellano et al. (2004) reported that the alpaca diet was dominated by grasses such as Festuca nardifolia, Deschampsia caespitosa, and Agrostis tolucensis, cushion plants Oxychloe andina, bunch grasses Festuca orthophylla, and the woody shrub Parastrephia lucida. (Castel laro, et al., 2004 ; Franklin, 1982)

Primary Diet herbivore

o folivore

Plant Foods leaves wood, bark, or stems

Predation

There are no reports on specific alpaca predators in their native range. Alpacas, however, could potentially be eaten by the same carnivores that attack their wild close relatives, i.e. gua na cos and vicug nas . These predators are domestic dogs (Canis lupus fa mil iaris ), Andean foxes (Lycalopex cul paeus ), Andean condors (Vul tur gry phus ), pumas (Puma con color ), and wild cats (Leop ar dus colo colo and Leop ar dus ja co bi tus ). Breeders in areas outside the alpaca native range identify coyotes (Canis la trans ), wolves (Canis lupus), large cats, and dogs as predators. Most predation will be on young, sick, or old animals, as alpacas are vigilant and will defend them-selves with their hooves and spitting their foul stomach contents into the face of a predator. (Cum ming and Cum ming, 2004 ; Ko ford, 1957 ; Young and Franklin, 2004)

Known Predatorso domestic dogs (Canis lupus familiaris)o Andean foxes (Lycalopex culpaeus)o Andean condors (Vultur gryphus)o pumas (Puma concolor)o colocolos (Leopardus colocolo)o Andean mountain cats (Leopardus jacobitus)o coyotes (Canis latrans)

o wolves (Canis lupus)

Ecosystem Roles

Due to some of their morphological characteristics such as padded soles and light weight, South American camelids do not compact the soil or destroy the vegetation in their habitat. Moreover, they feed on the natural forbs and grasses in the ecosystem. In brief, these animals are ideal live-stock for low impact grazing. ("Proyecto Camélidos", 2006)

Economic Importance for Humans: Positive

Fiber is the main product obtained from alpacas. The coat is clipped once a year and the fiber has been described as the finest. The fiber is soft and can absorb up to 15% of ambient humidity without altering it. Additionally, the fiber is warmer and stronger than wool. Other products that can be obtained from alpacas are meat, skin, and dung. The meat has as higher protein content and lower fat content than cow or sheep meat. The meat of South American camelids does not transmit diseases such as Trichinosis or Cysticercosis that are commonly caused by eating pork or wild game products. In spite of the benefits of alpaca meat, its commercialization is extremely rare. Another product obtained from alpacas is their skin, which is used for the manufacturing of rugs, wall hangings, purses, shoes, toys, and apparel. Dung is used either as a fertilizer or as fuel. The alpaca is of extreme importance for the economy of South American herders. The Peruvian Ministry of Agriculture reports that Peru and Bolivia have 99% of the alpaca population. Breed-ing occurs primarily in poor farm communities. ("Camélidos. Panorama de la ca dena", 2002 ; "Camélidos", 2007)

Positive Impacts pet trade food body parts are source of valuable material produces fertilizer

Economic Importance for Humans: Negative

There is no report of a negative impact of this species on human economy.

Conservation Status

After the arrival of the Spanish conquistadores to South America, alpaca populations were ex-tremely reduced and displaced to the highest regions of the Andes. Thus, alpacas and lla mas were replaced by sheep and goat brought from Europe. Nowadays, populations of alpacas are not endangered but are still relegated to the highest regions of the Andes. It has been estimated that the world population of alpacas is approximately 3.5 millions. Peru holds 87% of the alpaca pop-ulation, followed by Bolivia with 9.5%. Most of the alpacas reared in South America are under the control of traditional pastoralists who in most cases keep lla mas and alpacas together. This situation is problematic since alpacas and llamas can crossbreed. Wheeler (2005) touches on that problem and states that the hybridization between lla mas and alpacas, which started after the

conquest and continues today, is making alpacas an endangered species since its genetic make-up is being compromised by crossbreeds with the llama. ("Camélidos", 2007; Novoa and Wheeler, 1984; Wheeler, 2005)

IUCN Red List No special status

US Federal List No special status

CITES No special status

State of Michigan List No special status

Other Comments

Studies on different archeological sites in South America suggest that alpacas were domesticated approximately 6000 years ago. The origin of this species has been a matter of debate. Appar-ently, intense postconquest hybridization between lla mas and alpacas has played a major role in obscuring the alpaca's origin. In 2001, however, Kadwel et al. shed light on the controversy when they found through genetic analysis that vicug nas are the wild ancestors of alpacas. After this publication, it was suggested that Lama pacos be changed to Vicugna pacos, although this change has not yet been widely accepted. (Kad well, et al., 2001 ; Wheeler, 2003)

Contributors

Tanya Dewey (editor), Animal Diversity Web.

Alexandra Castillo-Ruiz (author), Michigan State University, Barbara Lundrigan (editor, instruc-tor), Michigan State University.

Glossary

Australian

Living in Australia, New Zealand, Tasmania, New Guinea and associated islands.

Nearctic

living in the Nearctic biogeographic province, the northern part of the New World. This includes Greenland, the Canadian Arctic islands, and all of the North American as far south as the highlands of central Mexico.

Neotropical

living in the southern part of the New World. In other words, Central and South America.

Palearctic

living in the northern part of the Old World. In otherwords, Europe and Asia and northern Africa.

acoustic

uses sound to communicate

agricultural

living in landscapes dominated by human agriculture.

bilateral symmetry

having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. Synapomorphy of the Bilateria.

chemical

uses smells or other chemicals to communicate

diurnal

1. active during the day, 2. lasting for one day.

dominance hierarchies

ranking system or pecking order among members of a long-term social group, where dominance status affects access to resources or mates

endothermic

animals that use metabolically generated heat to regulate body temperature independently of ambient temperature. Endothermy is a synapomorphy of the Mammalia, although it may have arisen in a (now extinct) synapsid ancestor; the fossil record does not distinguish these possibilities. Convergent in birds.

fertilization

union of egg and spermatozoan

folivore

an animal that mainly eats leaves.

food

A substance that provides both nutrients and energy to a living thing.

herbivore

An animal that eats mainly plants or parts of plants.

induced ovulation

ovulation is stimulated by the act of copulation (does not occur spontaneously)

introduced

referring to animal species that have been transported to and established populations in regions outside of their natural range, usually through human action.

iteroparous

offspring are produced in more than one group (litters, clutches, etc.) and across multiple seasons (or other periods hospitable to reproduction). Iteroparous animals must, by definition, survive over multiple seasons (or periodic condition changes).

motile

having the capacity to move from one place to another.

mountains

This terrestrial biome includes summits of high mountains, either without vegetation or covered by low, tundra-like vegetation.

native range

the area in which the animal is naturally found, the region in which it is endemic.

nomadic

generally wanders from place to place, usually within a well-defined range.

pet trade

the business of buying and selling animals for people to keep in their homes as pets.

polygynous

having more than one female as a mate at one time

sedentary

remains in the same area

sexual

reproduction that includes combining the genetic contribution of two individuals, a male and a female

sexual ornamentation

one of the sexes (usually males) has special physical structures used in courting the other sex or fighting the same sex. For example: antlers, elongated tails, special spurs.

social

associates with others of its species; forms social groups.

tactile

uses touch to communicate

temperate

that region of the Earth between 23.5 degrees North and 60 degrees North (between the Tropic of Cancer and the Arctic Circle) and between 23.5 degrees South and 60 degrees South (between the Tropic of Capricorn and the Antarctic Circle).

terrestrial

Living on the ground.

tropical

the region of the earth that surrounds the equator, from 23.5 degrees north to 23.5 degrees south.

tropical savanna and grassland

A terrestrial biome. Savannas are grasslands with scattered individual trees that do not form a closed canopy. Extensive savannas are found in parts of subtropical and tropical Africa and South America, and in Australia.

savanna

A grassland with scattered trees or scattered clumps of trees, a type of community intermediate between grassland and forest. See also Tropical savanna and grassland biome.

temperate grassland

A terrestrial biome found in temperate latitudes (>23.5° N or S latitude). Vegetation is made up mostly of grasses, the height and species diversity of which depend largely on the amount of moisture available. Fire and grazing are important in the long-term maintenance of grasslands.

visual

uses sight to communicate

viviparous

reproduction in which fertilization and development take place within the female body and the developing embryo derives nourishment from the female.

year-round breeding

breeding takes place throughout the year

young precocial

young are relatively well-developed when born

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Kerajaan: Animalia

Filum: Chordata

Kelas: Mammalia

Ordo: Artiodactyla

Famili: Camelidae

Genus: Vicugna

Spesies: V. pacos