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Jaguar [1]
Panthera onca
Temporal range: Early to Middle Pleistocene – Recent
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Felidae
Genus: 'Panthera'
Species: ''P. onca''
Binomial name
Panthera onca
Jaguar range

The jaguar (/ˈdʒæɡjuːər, ˈdʒæɡjʊər, ˈdʒæɡjuːɑːr/ or /ˈdʒæɡwɑːr/;[3] Template:IPA-pt, Spanish: 

  1. REDIRECCIÓN Plantilla:AFI), Panthera onca, is a big cat, a feline in the Panthera genus, and is the only Panthera species native to the Americas. The jaguar is the third-largest feline after the tiger and the lion, and the largest in the Western Hemisphere. The jaguar's present range extends from Southwestern United States and Mexico across much of Central America and south to Paraguay and northern Argentina. Apart from a known and possibly breeding population in Arizona (southeast of Tucson), the cat has largely been extirpated from the United States since the early 20th century.

This spotted cat most closely resembles the leopard physically, although it is usually larger and of sturdier build and its behavioral and habitat characteristics are closer to those of the tiger. While dense rainforest is its preferred habitat, the jaguar will range across a variety of forested and open terrains. It is strongly associated with the presence of water and is notable, along with the tiger, as a feline that enjoys swimming. The jaguar is largely a solitary, opportunistic, stalk-and-ambush predator at the top of the food chain (an apex predator). It is a keystone species, playing an important role in stabilizing ecosystems and regulating the populations of the animals it hunts. The jaguar has an exceptionally powerful bite, even relative to the other big cats.[4] This allows it to pierce the shells of armored reptiles[5] and to employ an unusual killing method: it bites directly through the skull of prey between the ears to deliver a fatal bite to the brain.[6]

The jaguar is a near threatened species and its numbers are declining. Threats include loss and fragmentation of habitat. While international trade in jaguars or their parts is prohibited, the cat is still frequently killed by humans, particularly in conflicts with ranchers and farmers in South America. Although reduced, its range remains large. Given its historical distribution, the jaguar has featured prominently in the mythology of numerous indigenous American cultures, including those of the Maya and Aztec.

Etymology

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The word 'jaguar' comes to English from one of the Tupi–Guarani languages, presumably the Amazonian trade language Tupinambá, via Portuguese jaguar.[7] The Tupian word, yaguara "beast", is sometimes translated as "dog".[8][9] The specific word for jaguar is yaguareté, with the suffix -eté meaning "real" or "true".[7][10]

The first component of its taxonomic designation, Panthera, is Latin, from the Greek word for leopard, πάνθηρ, the type species for the genus. This has been said to derive from the παν- "all" and θήρ from θηρευτής "predator", meaning "predator of all" (animals), though this may be a folk etymology[11]—it may instead be ultimately of Sanskrit origin, from pundarikam, the Sanskrit word for "tiger".[12]

Onca is the Portuguese onça, with the cedilla dropped for typographical reasons, found in English as ounce for the snow leopard, Panthera uncia. It derives from the Latin lyncea lynx, with the letter L confused with the definite article (Italian lonza, Old French l'once).[13]

Taxonomy and evolution

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The jaguar, Panthera onca, is the only extant New World member of the Panthera genus. DNA evidence shows the lion, tiger, leopard, jaguar, snow leopard, and clouded leopard share a common ancestor, and that this group is between six and ten million years old; the fossil record points to the emergence of Panthera just two to 3.8 million years ago.[14][15] Phylogenetic studies generally have shown the clouded leopard (Neofelis nebulosa) is basal to this group.[14][16][17][18] The position of the remaining species varies between studies and is effectively unresolved.

Based on morphological evidence, British zoologist Reginald Pocock concluded the jaguar is most closely related to the leopard.[18] However, DNA evidence is inconclusive and the position of the jaguar relative to the other species varies between studies.[14][16][17][18] Fossils of extinct Panthera species, such as the European jaguar (Panthera gombaszoegensis) and the American lion (Panthera atrox), show characteristics of both the lion and the jaguar.[18] Analysis of jaguar mitochondrial DNA has dated the species' lineage to between 280,000 and 510,000 years ago, later than suggested by fossil records.[19]

Asian ancestry

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While jaguars now live only in the Americas, they are descended from Old World cats. Two million years ago, scientists believe, the jaguar and its closest relative, the similarly spotted leopard, shared a common ancestor in Asia.[20] In the early Pleistocene, the forerunners of modern jaguars crossed Beringia, the land bridge that once spanned the Bering Strait and connected Asia and North America. These jaguar ancestors then moved south into Central and South America, feeding on the deer and other grazing animals that once covered the landscape in huge herds.[20]

Geographical variation

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While numerous subspecies of the jaguar have been recognized, recent research suggests just three. Geographical barriers, such as the Amazon river, limit gene flow within the species.

The last taxonomic delineation of the jaguar subspecies was performed by Pocock in 1939. Based on geographic origins and skull morphology, he recognized eight subspecies. However, he did not have access to sufficient specimens to critically evaluate all subspecies, and he expressed doubt about the status of several. Later consideration of his work suggested only three subspecies should be recognized.[21]

Recent studies have also failed to find evidence for well-defined subspecies, which are no longer recognized.[22] Larson (1997) studied the morphological variation in the jaguar and showed there is clinal north–south variation, but also the differentiation within the supposed subspecies is larger than that between them, and thus does not warrant subspecies subdivision.[23] A genetic study by Eizirik and coworkers in 2001 confirmed the absence of a clear geographical subspecies structure, although they found that major geographical barriers, such as the Amazon River, limited the exchange of genes between the different populations.[19] A subsequent, more detailed study confirmed the predicted population structure within the Colombian jaguars.[24]

Pocock's subspecies divisions are still regularly listed in general descriptions of the cat.[25] Seymour grouped these in three subspecies.[21]

  1. Panthera onca onca: Venezuela through the Amazon, including
    • P. o. peruviana (Peruvian jaguar): Coastal Peru
  2. P. o. hernandesii (Mexican jaguar'): Western Mexico – including
    • P. o. centralis (Central American jaguar): El Salvador to Colombia
    • P. o. arizonensis (Arizonan jaguar): Southern Arizona to Sonora, Mexico
    • P. o. veraecrucis: Central Texas to southeastern Mexico
Panthera onca palustris
  2. P. o. palustris (the largest subspecies, weighing more than 135 kg or 300 lb):[26] The Pantanal regions of Mato Grosso and Mato Grosso do Sul, Brazil, along the Paraguay River into Paraguay and northeastern Argentina.

The Mammal Species of the World continues to recognize nine subspecies, the eight subspecies above and additionally P. o. paraguensis.[1]

Biology and behavior

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Physical characteristics

[edit]
The head of the jaguar is robust and the jaw extremely powerful. The size of jaguars tends to increase the farther south they are located.

The jaguar, a compact and well-muscled animal, is the largest cat in the New World and the largest carnivorous mammal in Central and South America.[27] Size and weight vary considerably: weights are normally in the range of 56–96 kg (124–211 lb). Larger males have been recorded to weigh as much as 158 kg (348 lb)[28][22] (roughly matching a tigress or lioness), and the smallest females have low weights of 36 kg (79 lb).[22] Females are typically 10–20% smaller than males. The length, from the nose to the base of the tail, of the cats varies from 1.12 to 1.85 m (3.7 to 6.1 ft). Their tails are the shortest of any big cat, at 45 to 75 cm (18 to 30 in) in length.[22][29] Their legs are also short, considerably shorter when compared to a small tiger or lion in a similar weight range, but are thick and powerful. The jaguar stands 63 to 76 cm (25 to 30 in) tall at the shoulders.[30] Compared to the similarly colored Old World leopard, this cat is bigger, heavier and relatively stocky in build.[21]

Further variations in size have been observed across regions and habitats, with size tending to increase from the north to south. A study of the jaguar in the Chamela-Cuixmala Biosphere Reserve on the Mexican Pacific coast, showed ranges of just about 50 kg (110 lb), about the size of a female cougar.[31] Jaguars in Venezuela or Brazil are much larger with average weights of about 95 kg (220 lb) in males and of about 56 kilograms (123 lb) to 78 kilograms (172 lb) in females.[21] In the Brazilian Pantanal, weights of 136 kilograms (300 lb) or more are not uncommon in old males,[32] with the highest recorded weight being 148 kilograms (326 lb).[33] Forest jaguars are frequently darker and considerably smaller than those found in open areas (the Pantanal is an open wetland basin), possibly due to the smaller numbers of large, herbivorous prey in forest areas.[34]

A short and stocky limb structure makes the jaguar adept at climbing, crawling, and swimming.[30] The head is robust and the jaw extremely powerful, it has the third highest bite force of all felids, after lion and tiger. A 100 kg (220 lb) jaguar can bite with a force of 503.57 kgf (1110 lbf) at canine teeth and 705.79 kgf (1556 lbf) at carnassial notch.[35] This strength adaptation allows the jaguar to pierce turtle shells.[5] A comparative study of bite force adjusted for body size ranked it as the top felid, alongside the clouded leopard and ahead of the lion and tiger.[36] It has been reported that "an individual jaguar can drag an 800 lb (360 kg) bull 25 ft (7.6 m) in its jaws and pulverize the heaviest bones".[37] The jaguar hunts wild animals weighing up to 300 kg (660 lb) in dense jungle, and its short and sturdy physique is thus an adaptation to its prey and environment. The base coat of the jaguar is generally a tawny yellow, but can range to reddish-brown and black, for most of the body. However, the ventral areas are white.[30] The cat is covered in rosettes for camouflage in the dappled light of its forest habitat. The spots vary over individual coats and between individual jaguars: rosettes may include one or several dots, and the shapes of the dots vary. The spots on the head and neck are generally solid, as are those on the tail, where they may merge to form a band.[21]

While the jaguar closely resembles the leopard, it is sturdier and heavier, and the two animals can be distinguished by their rosettes: the rosettes on a jaguar's coat are larger, fewer in number, usually darker, and have thicker lines and small spots in the middle that the leopard lacks. Jaguars also have rounder heads and shorter, stockier limbs compared to leopards.[38]

Color morphism

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A melanistic jaguar is a color morph which occurs at about 6% frequency in populations.

Color morphism occurs in the species. A near-black melanistic form occurs regularly. Jaguars with melanism appear entirely black, although their spots are still visible on close examination.

The black morph is less common than the spotted form but, at about six percent of the population,[39] it is several orders of magnitude above the rate of mutation. Hence, it is being supported by selection. Some evidence indicates the melanism allele is dominant.[40] The black form may be an example of heterozygote advantage; breeding in captivity is not yet conclusive on this.

Melanistic jaguars are informally known as black panthers, but (as with all forms of polymorphism) they do not form a separate species.

Extremely rare albino individuals, sometimes called white panthers, also occur among jaguars, as with the other big cats.[34] As usual with albinos in the wild, selection keeps the frequency close to the rate of mutation.

Reproduction and life cycle

[edit]
Mother about to pick up a cub by the neck

Jaguar females reach sexual maturity at about two years of age, and males at three or four. The cat is believed to mate throughout the year in the wild, although births may increase when prey is plentiful.[41] Research on captive male jaguars supports the year-round mating hypothesis, with no seasonal variation in semen traits and ejaculatory quality; low reproductive success has also been observed in captivity.[42] Female estrus is 6–17 days out of a full 37-day cycle, and females will advertise fertility with urinary scent marks and increased vocalization.[41] Both sexes will range more widely than usual during courtship.

Pairs separate after mating, and females provide all parenting. The gestation period lasts 93–105 days; females give birth to up to four cubs, and most commonly to two. The mother will not tolerate the presence of males after the birth of cubs, given a risk of infanticide; this behavior is also found in the tiger.[43]

The young are born blind, gaining sight after two weeks. Cubs are weaned at three months, but remain in the birth den for six months before leaving to accompany their mother on hunts.[44] They will continue in their mother's company for one to two years before leaving to establish a territory for themselves. Young males are at first nomadic, jostling with their older counterparts until they succeed in claiming a territory. Typical lifespan in the wild is estimated at around 12–15 years; in captivity, the jaguar lives up to 23 years, placing it among the longest-lived cats.[32]

Social activity

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Jaguars

Like most cats, the jaguar is solitary outside mother–cub groups. Adults generally meet only to court and mate (though limited noncourting socialization has been observed anecdotally[43]) and carve out large territories for themselves. Female territories, which range from 25 to 40 km2 in size, may overlap, but the animals generally avoid one another. Male ranges cover roughly twice as much area, varying in size with the availability of game and space, and do not overlap.[43][45] The jaguar uses scrape marks, urine, and feces to mark its territory.[46][47]

Like the other big cats, the jaguar is capable of roaring[48][49] and does so to warn territorial and mating competitors away; intensive bouts of counter-calling between individuals have been observed in the wild.[50] Their roar often resembles a repetitive cough, and they may also vocalize mews and grunts.[32] Mating fights between males occur, but are rare, and aggression avoidance behavior has been observed in the wild.[46] When it occurs, conflict is typically over territory: a male's range may encompass that of two or three females, and he will not tolerate intrusions by other adult males.[43]

The jaguar is often described as nocturnal, but is more specifically crepuscular (peak activity around dawn and dusk). Both sexes hunt, but males travel farther each day than females, befitting their larger territories. The jaguar may hunt during the day if game is available and is a relatively energetic feline, spending as much as 50–60% of its time active.[34] The jaguar's elusive nature and the inaccessibility of much of its preferred habitat make it a difficult animal to sight, let alone study.

Hunting and diet

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The jaguar has an exceptionally powerful bite that allows it to pierce the shells of armored reptiles.

Like all cats, the jaguar is an obligate carnivore, feeding only on meat. It is an opportunistic hunter and its diet encompasses at least 87 species.[34] The jaguar can take virtually any terrestrial or riparian vertebrate found in Central or South America, with a preference for large prey. The jaguar is more of a dietary generalist than its Old World cousins: the American tropics have a high diversity of small animals but relatively low populations and diversity of the large ungulates which this genus favors.[51] They regularly take adult caimans,[52] deer, capybaras, tapirs, peccaries, dogs, zorros, and sometimes even anacondas.[21] However, the cat will eat any small species that can be caught, including frogs, mice, birds (mainly ground-based species such as cracids), fish, sloths, monkeys, and turtles; a study conducted in Cockscomb Basin Wildlife Sanctuary in Belize, for example, revealed that the diets of jaguars there consisted primarily of armadillos and pacas.[46] Some jaguars will also take domestic livestock, including adult cattle and horses.[53]

There is evidence that jaguars in the wild consume the roots of Banisteriopsis caapi.[54]

While the jaguar often employs the deep throat-bite and suffocation technique typical among Panthera, it sometimes uses a killing method unique amongst cats: it pierces directly through the temporal bones of the skull between the ears of prey (especially the capybara) with its canine teeth, piercing the brain.[55] This may be an adaptation to "cracking open" turtle shells; following the late Pleistocene extinctions, armored reptiles such as turtles would have formed an abundant prey base for the jaguar.[34][50] The skull bite is employed with mammals in particular; with reptiles such as the caiman, the jaguar may leap onto the back of the prey and sever the cervical vertebrae, immobilizing the target. While capable of cracking turtle shells, the jaguar may simply smash into the shell with its paw and scoop out the flesh.[43] When attacking sea turtles, including the huge Leatherback sea turtle which weighs about 385 kg (849 lb) on average, as they try to nest on beaches, the jaguar will bite at the head, often beheading the prey, before dragging it off to eat.[56] Reportedly, while hunting horses, a jaguar may leap onto their back, place one paw on the muzzle and another on the nape and then twist, dislocating the neck. Local people have anecdotally reported that when hunting a pair of horses bound together, the jaguar will kill one horse and then drag it while the other horse, still living, is dragged in their wake.[57] With prey such as smaller dogs, a paw swipe to the skull may be sufficient to kill it.

Illustration of a jaguar killing a tapir, the largest native land animal in its range

The jaguar is a stalk-and-ambush rather than a chase predator. The cat will walk slowly down forest paths, listening for and stalking prey before rushing or ambushing. The jaguar attacks from cover and usually from a target's blind spot with a quick pounce; the species' ambushing abilities are considered nearly peerless in the animal kingdom by both indigenous people and field researchers, and are probably a product of its role as an apex predator in several different environments. The ambush may include leaping into water after prey, as a jaguar is quite capable of carrying a large kill while swimming; its strength is such that carcasses as large as a heifer can be hauled up a tree to avoid flood levels.[43]

On killing prey, the jaguar will drag the carcass to a thicket or other secluded spot. It begins eating at the neck and chest, rather than the midsection. The heart and lungs are consumed, followed by the shoulders.[43] The daily food requirement of a 34 kg (75 lb) animal, at the extreme low end of the species' weight range, has been estimated at 1.4 kg (3.1 lb).[58] For captive animals in the 50–60 kg (110–130 lb) range, more than 2 kg (4.4 lb) of meat daily are recommended.[59] In the wild, consumption is naturally more erratic; wild cats expend considerable energy in the capture and kill of prey, and they may consume up to 25 kg (55 lb) of meat at one feeding, followed by periods of famine.[60] Unlike all other Panthera species, jaguars very rarely attack humans. In most of the few cases where a jaguar has turned to taking a human, the animal was either old with damaged teeth or wounded.[61] Sometimes, if scared or threatened, jaguars in captivity may lash out at zookeepers.[62]

Ecology

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Distribution and habitat

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The jaguar has been an American cat since crossing the Bering Land Bridge during the Pleistocene epoch; the immediate ancestor of modern animals is Panthera onca augusta, which was larger than the contemporary cat.[24] Its present range extends from Mexico, through Central America and into South America, including much of Amazonian Brazil.[63] The countries included in this range are Argentina, Belize, Bolivia, Brazil, Colombia, Costa Rica (particularly on the Osa Peninsula), Ecuador, French Guiana, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Suriname, the United States and Venezuela. The jaguar is now extinct in El Salvador and Uruguay.[2] It occurs in the 400 km² Cockscomb Basin Wildlife Sanctuary in Belize, the 5,300 km² Sian Ka'an Biosphere Reserve in Mexico, the approximately 15,000 km2 Manú National Park in Peru, the approximately 26,000 km2 Xingu National Park in Brazil, and numerous other reserves throughout its range.

The jaguar can range across a variety of forested and open habitat, but is strongly associated with the presence of water.

The inclusion of the United States in the list is based on occasional sightings in the southwest, particularly in Arizona, New Mexico and Texas. In the early 20th century, the jaguar's range extended as far north as the Grand Canyon, and as far west as Southern California.[58] The jaguar is a protected species in the United States under the Endangered Species Act, which has stopped the shooting of the animal for its pelt. In 1996 and from 2004 on, wildlife officials in Arizona photographed and documented jaguars in the southern part of the state. Between 2004 and 2007, two or three jaguars have been reported by researchers around Buenos Aires National Wildlife Refuge in southern Arizona. One of them, called 'Macho B', had been previously photographed in 1996 in the area.[64] For any permanent population in the USA to thrive, protection from killing, an adequate prey base, and connectivity with Mexican populations are essential.[65] In February 2009, a 53.5 kg (118 lb) jaguar was caught, radio-collared and released in an area southwest of Tucson, Arizona; this is farther north than had previously been expected and represents a sign there may be a permanent breeding population of jaguars within southern Arizona. The animal was later confirmed to be indeed the same male individual ('Macho B') that was photographed in 2004.[66] On 2 March 2009, Macho B was recaptured and euthanized after he was found to be suffering from kidney failure; the animal was thought to be 16 years old, older than any known wild jaguar.[67]

Completion of the United States–Mexico barrier as currently proposed will reduce the viability of any population currently residing in the United States, by reducing gene flow with Mexican populations, and prevent any further northward expansion for the species.[68]

The historic range of the species included much of the southern half of the United States, and in the south extended much farther to cover most of the South American continent. In total, its northern range has receded 1,000 km (621 mi) southward and its southern range 2,000 km (1243 mi) northward. Ice age fossils of the jaguar, dated between 40,000 and 11,500 years ago, have been discovered in the United States, including some at an important site as far north as Missouri. Fossil evidence shows jaguars of up to 190 kg (420 lb), much larger than the contemporary average for the animal.[69]

The habitat of the cat includes the rain forests of South and Central America, open, seasonally flooded wetlands, and dry grassland terrain. Of these habitats, the jaguar much prefers dense forest;[34] the cat has lost range most rapidly in regions of drier habitat, such as the Argentinian pampas, the arid grasslands of Mexico, and the southwestern United States.[2] The cat will range across tropical, subtropical, and dry deciduous forests (including, historically, oak forests in the United States). The jaguar is strongly associated with water, and it often prefers to live by rivers, swamps, and in dense rainforest with thick cover for stalking prey. Jaguars have been found at elevations as high as 3,800 m, but they typically avoid montane forest and are not found in the high plateau of central Mexico or in the Andes.[34]

Substantial evidence exists for a colony of nonnative, melanistic leopards or jaguars inhabiting the rainforests around Sydney, Australia. A local report compiled statements from over 450 individuals recounting their stories of sighting large black cats in the area, and confidential NSW Government documents regarding the matter proved wildlife authorities were so concerned about the big cats and the danger to humans, they commissioned an expert to catch one. The three-day hunt later failed, but ecologist Johannes J. Bauer warned: "Difficult as it seems to accept, the most likely explanation is the presence of a large, feline predator. In this area, [it is] most likely a leopard, less likely a jaguar."[70]

Ecological role

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The adult jaguar is an apex predator, meaning it exists at the top of its food chain and is not preyed on in the wild. The jaguar has also been termed a keystone species, as it is assumed, through controlling the population levels of prey such as herbivorous and granivorous mammals, apex felids maintain the structural integrity of forest systems.[31][71] However, accurately determining what effect species like the jaguar have on ecosystems is difficult, because data must be compared from regions where the species is absent as well as its current habitats, while controlling for the effects of human activity. It is accepted that mid-sized prey species undergo population increases in the absence of the keystone predators, and this has been hypothesized to have cascading negative effects.[72] However, field work has shown this may be natural variability and the population increases may not be sustained. Thus, the keystone predator hypothesis is not accepted by all scientists.[73]

The jaguar also has an effect on other predators. The jaguar and the cougar, the next-largest feline of the Americas, are often sympatric (related species sharing overlapping territory) and have often been studied in conjunction. Where sympatric with the jaguar, the cougar is smaller than normal and is smaller than the local jaguars. The jaguar tends to take larger prey, usually over 22 kg (49 lb) and the cougar smaller, usually between 2 and 22 kg (4.4 and 48.5 lb), reducing the latter's size.[51][74] This situation may be advantageous to the cougar. Its broader prey niche, including its ability to take smaller prey, may give it an advantage over the jaguar in human-altered landscapes;[31] while both are classified as near-threatened species, the cougar has a significantly larger current distribution.

Conservation status

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A melanistic jaguar

Jaguar populations are rapidly declining. The animal is considered Near Threatened by the International Union for Conservation of Nature (IUCN),[2] meaning it may be threatened with extinction in the near future. The loss of parts of its range, including its virtual elimination from its historic northern areas and the increasing fragmentation of the remaining range, have contributed to this status. The 1960s had particularly significant declines, with more than 15,000 jaguar skins brought out of the Brazilian Amazon yearly; the Convention on International Trade in Endangered Species of 1973 brought about a sharp decline in the pelt trade.[75] Detailed work performed under the auspices of the Wildlife Conservation Society revealed the animal has lost 37% of its historic range, with its status unknown in an additional 18%. More encouragingly, the probability of long-term survival was considered high in 70% of its remaining range, particularly in the Amazon basin and the adjoining Gran Chaco and Pantanal.[63] In 1990 Belize created the Cockscomb Basin Wildlife Sanctuary as the world's first wilderness reserve for jaguar protection and study.

The major risks to the jaguar include deforestation across its habitat, increasing competition for food with human beings,[2] poaching, hurricanes in northern parts of its range, and the behavior of ranchers who will often kill the cat where it preys on livestock. When adapted to the prey, the jaguar has been shown to take cattle as a large portion of its diet; while land clearance for grazing is a problem for the species, the jaguar population may have increased when cattle were first introduced to South America, as the animals took advantage of the new prey base. This willingness to take livestock has induced ranch owners to hire full-time jaguar hunters, and the cat is often shot on sight.[32]

The Pantanal, Brazil, seen here in flood condition, is a critical jaguar range area.

The jaguar is regulated as an Appendix I species under CITES: all international trade in jaguars or their parts is prohibited. All hunting of jaguars is prohibited in Argentina, Belize, Colombia, French Guiana, Honduras, Nicaragua, Panama, Paraguay, Suriname, the United States (where it is listed as endangered under the Endangered Species Act), Uruguay and Venezuela. Hunting of jaguars is restricted to "problem animals" in Brazil, Costa Rica, Guatemala, Mexico and Peru, while trophy hunting is still permitted in Bolivia. The species has no legal protection in Ecuador or Guyana.[25]

Current conservation efforts often focus on educating ranch owners and promoting ecotourism.[76] The jaguar is generally defined as an umbrella species – its home range and habitat requirements are sufficiently broad that, if protected, numerous other species of smaller range will also be protected.[77] Umbrella species serve as "mobile links" at the landscape scale, in the jaguar's case through predation. Conservation organizations may thus focus on providing viable, connected habitat for the jaguar, with the knowledge other species will also benefit.[76]

Given the inaccessibility of much of the species' range, particularly the central Amazon, estimating jaguar numbers is difficult. Researchers typically focus on particular bioregions, thus species-wide analysis is scant. In 1991, 600–1,000 (the highest total) were estimated to be living in Belize. A year earlier, 125–180 jaguars were estimated to be living in Mexico's 4,000-km2 (2400-mi2) Calakmul Biosphere Reserve, with another 350 in the state of Chiapas. The adjoining Maya Biosphere Reserve in Guatemala, with an area measuring 15,000 km2 (9,000 mi2), may have 465–550 animals.[78] Work employing GPS telemetry in 2003 and 2004 found densities of only six to seven jaguars per 100 km2 in the critical Pantanal region, compared with 10 to 11 using traditional methods; this suggests the widely used sampling methods may inflate the actual numbers of cats.[79]

In the past, conservation of jaguars sometimes occurred through the protection of jaguar "hotspots". These hotspots, described as jaguar conservation units, were large areas populated by about 50 jaguars. However, some researchers recently determined, to maintain a robust sharing of the jaguar gene pool necessary for maintaining the species, it is important that the jaguars are interconnected. To facilitate this, a new project, the Paseo del Jaguar, has been established to connect several jaguar hotspots.[80]

Jaguars in the United States

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Adult jaguar

The only extant cat native to North America that roars,[81] the jaguar was recorded as an animal of the Americas by Thomas Jefferson in 1799.[82] There are multiple zoological reports of jaguar in California, two as far north as Monterey in 1814 (Langsdorff) and 1826 (Beechey).[83] The coastal Diegueño (Kumeyaay people) of San Diego and Cahuilla Indians of Palm Springs had words for jaguar and the cats persisted there until about 1860.[84] The only recorded description of an active jaguar den with breeding adults and kittens in the U.S. was in the Tehachapi Mountains of California prior to 1860.[83] In 1843, Rufus Sage, an explorer and experienced observer recorded jaguar present on the headwaters of the North Platte River 30–50 miles north of Long's Peak in Colorado. Cabot's 1544 map has a drawing of jaguar ranging over the Pennsylvania and Ohio valleys. Historically, the jaguar was recorded in far eastern Texas, and the northern parts of Arizona and New Mexico. However, since the 1940s, the jaguar has been limited to the southern parts of these states. Although less reliable than zoological records, native American artefacts with possible jaguar motifs range from the Pacific Northwest to Pennsylvania and Florida.[85]

Jaguars were rapidly eliminated in the United States. The last female jaguar in the United States was shot by a hunter in Arizona's White Mountains in 1963. Arizona outlawed jaguar hunting in 1969, but by then no females remained and over the next 25 years only two male jaguars were found (and killed) in Arizona. Then in 1996, Warner Glenn, a rancher and hunting guide from Douglas, Arizona, came across a jaguar in the Peloncillo Mountains and became a jaguar researcher, placing webcams which recorded four more Arizona jaguars.[86] None of the other four male jaguars sighted in Arizona in the last 15 years have been seen since 2006.[87] Then, in 2009, a male jaguar named Macho B, died shortly after being radio-collared by Arizona Game and Fish Department (AGFD) officials in 2009. In the Macho B incident, a former AGFD subcontractor pleaded guilty to violating the endangered species act for trapping the cat and a Game and Fish employee was fired for lying to federal investigators.[81] In 2011, a 200-pound male jaguar was photographed near Cochise in southern Arizona by a hunter after being treed by his dogs (the animal left the scene unharmed). A second 2011 sighting of an Arizona jaguar was reported by a Homeland Security border pilot in June 2011, and conservation researchers sighted two jaguars within 30 miles of the Mexico/U.S. border in 2010.[81] In September 2012, a jaguar was photographed in the Santa Rita Mountains of Arizona, the second such sighting in this region in two years.[88] Apparently this jaguar has been photographed numerous times over the past nine months through June 2013.[89]

Legal action by the Center for Biological Diversity led to federal listing of the cat on the endangered species list in 1997. However, on January 7, 2008, George W. Bush appointee H. Dale Hall, Director of the United States Fish and Wildlife Service (USFWS), signed a recommendation to abandon jaguar recovery as a federal goal under the Endangered Species Act. Critics, including the Center of Biological Diversity and New Mexico Department of Game and Fish, were concerned the jaguar was being sacrificed for the government's new border fence, which is to be built along many of the cat's typical crossings between the United States and Mexico.[90] In 2010, the Obama Administration reversed the Bush Administration policy and pledged to protect "critical habitat" and draft a recovery plan for the species. The USFWS was ultimately ordered by the court to develop a jaguar recovery plan and designate critical habitat for the cats.[81] On August 20, 2012, the USFWS proposed setting aside 838,232 acres in Arizona and New Mexico—an area larger than Rhode Island—as critical jaguar habitat.[91] On March 4, 2014 Federal wildlife officials set aside nearly 1,200 square miles along the U.S.-Mexico border as habitat essential for the conservation of the jaguar. The reservation includes parts of Pima, Santa Cruz and Cochise counties in Arizona and Hidalgo County in New Mexico.[92]

In mythology and culture

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Pre-Columbian Americas

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Template:See also

Moche Jaguar (300 AD) Larco Museum Lima, Peru
Jaguar warrior in the Aztec culture

In pre-Columbian Central and South America, the jaguar was a symbol of power and strength. Among the Andean cultures, a jaguar cult disseminated by the early Chavín culture became accepted over most of what is today Peru by 900 BC. The later Moche culture of northern Peru used the jaguar as a symbol of power in many of their ceramics.[93][94][95]

In Mesoamerica, the Olmec—an early and influential culture of the Gulf Coast region roughly contemporaneous with the Chavín—developed a distinct "were-jaguar" motif of sculptures and figurines showing stylised jaguars or humans with jaguar characteristics. In the later Maya civilization, the jaguar was believed to facilitate communication between the living and the dead and to protect the royal household. The Maya saw these powerful felines as their companions in the spiritual world, and a number of Maya rulers bore names that incorporated the Mayan word for jaguar (b'alam in many of the Mayan languages). The Aztec civilization shared this image of the jaguar as the representative of the ruler and as a warrior. The Aztecs formed an elite warrior class known as the Jaguar Knights. In Aztec mythology, the jaguar was considered to be the totem animal of the powerful deity Tezcatlipoca.[43][96]

Contemporary culture

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The jaguar and its name are widely used as a symbol in contemporary culture. It is the national animal of Guyana, and is featured in its coat of arms.[97] The flag of the Department of Amazonas, a Colombian department, features a black jaguar silhouette pouncing towards a hunter.[98] The jaguar also appears in banknotes of Brazilian real. The jaguar is also a common fixture in the mythology of many contemporary native cultures in South America,[99] usually being portrayed as the creature which gave humans the power over fire.

Jaguar is widely used as a product name, most prominently for a British luxury car brand. The name has been adopted by sports franchises, including the NFL's Jacksonville Jaguars and the Mexican soccer club Chiapas F.C. The crest of Argentina's national federation in rugby union features a jaguar; however, because of a historic accident, the country's national team is nicknamed Los Pumas.[100] In the spirit of the ancient Mayan culture, the 1968 Olympics in Mexico City adopted a red jaguar as the first official Olympic mascot.[101]

See also

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References

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  1. ^ a b Template:MSW3 Wozencraft
  2. ^ a b c d e Template:IUCN Database entry includes justification for why this species is near threatened.
  3. ^ The pronunciation /ˈdʒæɡwɑːr/ is North American.
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Bibliography

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Further reading

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  • Brown, David, and Carlos A. López González (2001). Borderland Jaguars. University of Utah Press. ISBN 978-0-87480-696-0.
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