Peccary

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Peccaries
Temporal range: Early Miocene–Holocene
Collared peccary02 - melbourne zoo.jpg
Collared peccary, Dicotyles tajacu
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Suborder: Suina
Family: Tayassuidae
Palmer, 1897
Type genus
Tayassu
Waldheim, 1814
Extant and subfossil genera
Peccary range.png
Range of the peccaries
Synonyms

Dicotylidae

A peccary (also javelina or skunk pig) is a pig-like ungulate of the family Tayassuidae (New World pigs). They are found throughout Central and South America, Trinidad in the Caribbean, and in the southwestern area of North America. They usually measure between 90 and 130 cm (2 ft 11 in and 4 ft 3 in) in length, and a full-grown adult usually weighs about 20 to 40 kg (44 to 88 lb). They represent the closest relatives of the family Suidae, which contains pigs and relatives. Together Tayassuidae and Suidae are grouped in the suborder Suina within the order Artiodactyla (even-toed ungulates).

Contents

Peccaries are social creatures that live in herds. They are omnivores and eat roots, grubs, and a variety of other foods. They can identify each other by their strong odors. A group of peccaries that travel and live together is called a squadron. A squadron of peccaries averages between six and nine members. [1]

Peccaries first appeared in North America during the Miocene and migrated into South America during the PliocenePleistocene as part of the Great American Interchange.

They are often confused [2] with feral domestic pigs, commonly known as "razorback" hogs in many parts of the United States, [3] when the two occur in the wild in similar ranges.

The Maya kept herds of peccaries, using them in rituals and for food. [4] They are kept as pets in many countries in addition to being raised on farms as a source of food. [5]

Etymology

The word peccary is derived from the Carib word pakira or paquira. [6]

In Portuguese, a peccary is called pecari, porco-do-mato, queixada, tajaçu, among other names like Cateto or Caititu. In Spanish, it is called javelina, jabalí (a word also used to describe wild boar), sajino, or pecarí. The word javelina derives from the Spanish word for "wild boar". [7] In French Guiana and Suriname, the animal is called pakira.

The scientific name Tayassuidae derives from the same source as the Portuguese tajaçu. [8]

Characteristics

Skulls of wild boar (left) and white-lipped peccary (right): Note how the upper canines of the peccary point downwards. Sus scrofa & Tayassu pecari.jpg
Skulls of wild boar (left) and white-lipped peccary (right): Note how the upper canines of the peccary point downwards.

A peccary is a medium-sized animal, with a strong resemblance to a pig. Like a pig, it has a snout ending in a cartilaginous disc and eyes that are small relative to its head. Also like a pig, it uses only the middle two digits for walking, although, unlike pigs, the other toes may be altogether absent. Its stomach is not ruminating. Though it has three chambers, it is more complex than those of pigs. [9] Peccaries are foregut fermenters (pigs are hindgut fermenters). [10] This foregut fermentation, similar to but separately evolved from a ruminant, is an example of convergent evolution.

Peccaries are omnivores and will eat insects, grubs, and occasionally small animals, although their preferred foods consist of roots, grasses, seeds, fruit, [9] and cacti—particularly prickly pear. [11] Pigs and peccaries can be differentiated by a number of characteristic, including tails and ear shape. The ears of pigs are large and upright and often pointed while the ears of peccaries are small and rounded. Pigs also have tasseled tails, but peccaries' tails are small and discreet. [12]

The most noticeable difference between pigs and peccaries is the shape of the canine teeth, or tusks. In European pigs, the tusks are long and curve around on themselves, whereas in peccaries, the tusks are short and straight and interlock with each other, prohibiting side-to-side movement of the jaw. The jaws and tusks of peccaries are adapted for crushing hard seeds and slicing into plant roots, [9] [12] and they also use their tusks to defend against predators. The dental formula for peccaries is: 2.1.3.33.1.3.3

By rubbing the tusks together, they can make a chattering noise that warns potential predators to stay away.

Peccaries are social animals, often forming herds. Over 100 individuals have been recorded for a single herd of white-lipped peccaries, but collared and Chacoan peccaries usually form smaller groups. Such social behavior seems to have been the situation in extinct peccaries as well. The giant peccary (Pecari maximus) of Brazil appears to be less social, primarily living in pairs. [13] Peccaries rely on their social structure to defend territory, protect against predators, regulate temperature, and interact with other members of the species. [14]

Peccaries have scent glands below each eye and another on their backs, though these are believed to be rudimentary in P. maximus. They use the scent to mark herd territories, which range from 30 to 280 hectares (75 to 700 acres). They also mark other herd members with these scent glands by rubbing one against another. The pungent odor allows peccaries to recognize other members of their herd, despite their myopic vision. The odor is strong enough to be detected by humans, which earns the peccary the nickname of "skunk pig".

Species

Extant species

Three (possibly four) living species of peccaries are found from the Southwestern United States through Central America and into South America and Trinidad, each in their own genus.

The collared peccary (Dicotyles tajacu) or "musk hog", referring to the animal's scent glands, occurs from the Southwestern United States into South America and the island of Trinidad. The coat consists of wiry peppered black, gray, and brown hair with a lighter colored "collar" circling the shoulders. They bear young year-round, but most often between November and March, with the average litter size consisting of two to three offspring. They are found in many habitats, from arid scrublands to humid tropical rain forests. The collared peccary is well-adapted to habitat disturbed by humans, merely requiring sufficient cover. They can be found in cities and agricultural land throughout their range.

Notable populations exist in the suburbs of Phoenix and Tucson, Arizona, where they feed on ornamental plants and other cultivated vegetation. [15] [16] There are also urban populations as far north as Sedona, Arizona, where they have been known to fill a niche similar to raccoons and other urban scavengers. [17] In Arizona they are often called by their Spanish name "javelinas". Collared peccaries are generally found in bands of 8 to 15 animals of various ages. They defend themselves if they feel threatened, but otherwise tend to ignore humans.

A second species, the white-lipped peccary (Tayassu pecari), is mainly found in rainforests of Central and South America, but also known from a wide range of other habitats such as dry forests, grasslands, mangrove, cerrado, and dry xerophytic areas. [18] The two main threats to their survival are deforestation and hunting.

The third species, the Chacoan peccary (Catagonus wagneri). It is found in the dry shrub habitat or Chaco of Paraguay, Bolivia, and Argentina. The Chacoan peccary has the distinction of having been first described based on fossils and was originally thought to be an extinct species. In 1975, the animal was discovered in the Chaco region of Paraguay. The species was well known to the native people.

A fourth as yet unconfirmed species, the giant peccary (Dicotyles maximus), was described from the Brazilian Amazon and north Bolivia [19] by Dutch biologist Marc van Roosmalen. Though relatively recently discovered, it has been known to the local Tupi people as caitetu munde, which means "great peccary which lives in pairs". [20] [21] Thought to be the largest extant peccary, it can grow to 1.2 m (4 ft) in length. Its pelage is completely dark gray, with no collars whatsoever. Unlike other peccaries, it lives in pairs, or with one or two offspring. However, the scientific evidence for considering it as a species separate from the collared peccary has later been questioned, [22] [23] leading the IUCN to treat it as a synonym. [24]

During the Late Pleistocene, two extinct peccaries, Mylohyus and Platygonus , were widespread across North America (and in the case of Platygonus, South America), but became extinct at the end of the Pleistocene around 12,000 years ago following the arrival of humans. [25]

Extinct genera

In addition, Tayassuidae have a well-attested fossil record, and numerous extinct genera are known:[ citation needed ]

Evolution

Although some taxa from the Old World like the European Miocene Taucanamo have been suggested to be members of Tayussidae, their assignation to the group is equivocal, with a 2017 phylogenetic analysis recovering Taucanamo outside the clade containing suids and peccaries. The oldest unambiguous fossils of peccaries are from the Early Miocene of North America, with the North American Eocene-Oligocene genus Perchoerus, also often considered an early peccary, recovered outside the clade containing peccaries and suids. [27]

Although common in South America today, peccaries did not reach there until about three million years ago during the Great American Interchange, when the Isthmus of Panama formed, connecting North America and South America. At that time, many North American animals—including peccaries, llamas and tapirs—entered South America, while some South American species, such as the ground sloths and opossums, migrated north. [28] Several species of peccary across the genera Platygonus and Mylohyus remained in North America until their extinction following the colonization of the continent by humans via Beringia at the end of the Pleistocene. Today, 2 of the 3 species are relegated to the Neotropical realm, but the collared peccary ranges into northern Mexico and the southwestern United States.

Domestication

Peccaries bear a familial resemblance to true pigs due to their common ancestry, and are in the same suborder as swine (Suina). They have been present in South America since prehistoric times. [29] The earliest scientific description of peccaries in the New World is in Brazil in 1547 and referred to them as "wild pigs". [30]

It has been documented that peccaries were tamed, penned, and raised for food and ritual purposes in the Yucatán, Panama, the southern Caribbean, and Colombia at the time of the Conquest. [31] Archaeological remains of peccaries have been found in Mesoamerica from the Preclassic (or Formative) period up until immediately before Spanish contact. [32] Specifically, peccary remains have been found at Early Formative Olmec civilization sites. [33]

The peccary is not readily suitable for modern captive breeding, lacking suitable characteristics for intensive or semi-intensive systems. Peccaries require a higher age before they are able to give birth (parturition) and have a tendency towards infanticide. [34]

Relation with feral pigs

Recently established Brazilian boar populations are not to be confused with long-established populations of feral domestic pigs, which have existed mainly in the Pantanal for more than 100 years, along with native peccaries. The demographic dynamics of the interaction between feral pig populations and those of the two native species of peccaries (collared peccary and white-lipped peccary) is obscure and is still being studied. The existence of feral pigs could somewhat ease jaguar predation on peccary populations, as jaguars show a preference for hunting pigs when they are available. [35]

Related Research Articles

<i>Hydrochoerus</i> Genus of rodents

The genus Hydrochoerus contains two living and three extinct species of rodents from South America, the Caribbean island of Grenada, California and Panama. Capybaras are the largest living rodents in the world. The genus name is derived from the Greek ὕδωρ 'water' plus χοίρος 'pig'.

<span class="mw-page-title-main">Chacoan peccary</span> Species of mammals belonging to the peccary family of even-toed ungulates

The Chacoan peccary or tagua is the last extant species of the genus Catagonus; it is a peccary found in the Gran Chaco of Paraguay, Bolivia, and Argentina. Approximately 3,000 remain in the world.

<span class="mw-page-title-main">Humid Chaco</span> Terrestrial ecoregion in South America

The Humid Chaco is tropical grasslands, savannas, and shrublands ecoregion in South America. It lies in the basin of the Paraná River, covering portions of central Paraguay and northern Argentina, and with a small portion of southwestern Brazil and northwestern Uruguay. The natural vegetation is a mosaic of grasslands, palm savanna, and forest.

<span class="mw-page-title-main">Collared peccary</span> Species of mammals belonging to the peccary family

The collared peccary is a species of artiodactyl (even-toed) mammal in the family Tayassuidae found in North, Central, and South America. It is the only member of the genus Dicotyles. They are commonly referred to as javelina, saíno, taitetu, or báquiro, although these terms are also used to describe other species in the family. The species is also known as the musk hog. In Trinidad, it is colloquially known as quenk.

<span class="mw-page-title-main">White-lipped peccary</span> Species of mammals belonging to the peccary family of even-toed ungulates

The white-lipped peccary is a species of peccary found in Central and South America and the only member of the genus Tayassu. Multiple subspecies have been identified. White-lipped peccaries are similar in appearance to pigs, but covered in dark hair. The range of T. pecari, which extends from Mexico to Argentina, has become fragmented, and the species's population is declining overall. They can be found in a variety of habitats. Social animals, white-lipped peccaries typically forage in large groups, which can have as many as 300 peccaries.

<i>Platygonus</i> Extinct genus of mammals

Platygonus is an extinct genus of herbivorous peccaries of the family Tayassuidae, endemic to North and South America from the Miocene through Pleistocene epochs, existing for about 10.289 million years. P. compressus stood 2.5 feet tall.

<span class="mw-page-title-main">Yanesha Communal Reservation</span>

The Communal Reservation Yanesha or Yanesha Community Reserve is a communal reserve in the Palcazu District of Oxapampa Province of Peru. It covers an area of 347.45 km2 (134.15 sq mi) in the Palcazu River basin. The reserve was creating by law on April 28, 1988, to protect both wild fauna and indigenous peoples. The Yanesha' people live in the reserve.

Serra da Cutia National Park is a national park in the state of Rondônia, Brazil.

<i>Mylohyus</i> An extinct genus of mammals belonging to the peccary family of even-toed ungulates

Mylohyus is an extinct genus of peccary found in North and Central America. It first evolved during the Late Miocene and became extinct at the end of the Pleistocene, around 12,000 years ago, during the Late Pleistocene megafaunal extinction.

A wild pig may be:

<i>Platygonus compressus</i> Extinct species of mammal

Platygonus compressus, the flat-headed peccary, is an extinct mammal species from the Tayassuidae family that lived in North and South America during the Pleistocene. It was first described in 1848 by John L. Leconte.

<span class="mw-page-title-main">Flora and fauna of Honduras</span>

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<span class="mw-page-title-main">Long-nosed peccary</span> Extinct species of mammal

The long-nosed peccary is an extinct mammal species of the peccary family (Tayassuidae). It is one of two peccary-species that existed in the US-Midwest during the last ice age.

Brasiliochoerus stenocephalus is an extinct species of peccary that lived in South America during the Late Pleistocene. Fossils have been found in Brazil, Argentina and Bolivia. It is commonly known as the narrow-headed peccary due to its long and markedly convex rostrum.

Prosthennops is a genus of extinct peccaries that lived in North and Central America between the middle Miocene and lower Pliocene.

References

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