The North American jaguar is a jaguar (Panthera onca) population in North America, ranging from the Southwestern United States to Central America .[2] They are most associated to Central and South America. This population has declined over decades and was almost extirpated from the United States by 1960.[3]
Results of morphologic and genetic research failed to find evidence for subspecific differentiation.[4][5]
This population is also referred to as the "American jaguar"[6] and "Central American jaguar".[7]
Initially, a number of jaguar subspecies were described:[8]
In 1939, Reginald Innes Pocock did not find evidence for morphological distinction between P. o. hernandesii, P. o. centralis and P. o. arizonensis and considered them one subspecies. Recent tests failed to establish evidence for different subspecies of the jaguar.[4]
The modern jaguar is thought to descend from a pantherine ancestor in Asia that crossed the Beringian land bridge into North America during the Early Pleistocene. From North America, it spread to Central and South America. The ancestral jaguar in North America is referred to as Panthera onca augusta.[5] During the Pleistocene epoch, jaguars were much more wide-spread through out North America with their ranges extending to places like Nebraska, Washington, and Maryland due to various fossil specimens being unearthed over the course of many decades with the highest concentrations of fossil jaguars being unearthed in Florida and eastern Tennessee. The jaguar was much more common in Florida than its other felid relatives.[10]
While jaguars in South America can reach sizes of 120 kg (260 lb) for males,[11] jaguars in Central or North America are relatively smaller.[12] Those in the Chamela-Cuixmala Biosphere Reserve on the Mexican Pacific coast weigh just about 50 kg (110 lb), similar in weight to female cougars (Puma concolor).[13] 57.2 kg (126 lb) was the average for six males in Belize,[14] making them similar to South American females in Venezuela.[8]
In northeastern Mexico, jaguars co-occur with cougars. Both are foremost active at night and prey on white-tailed deer (Odocoileus virginianus), collared peccary (Dicotyles tajacu) and cattle calves (Bos taurus).[15]
Other sympatric predators in the region include the American black bear (Ursus americanus) and formerly, the Mexican grizzly bear (Ursus arctos nelsoni) and Mexican wolf (Canis lupus baileyi). There is evidence that a jaguar nicknamed El Jefe, which lived the southwestern United States from 2011 to 2015, preyed on a young American black bear sow.[6]
In July 2018, in the Central American section of the Audubon Zoo in the US city of New Orleans, Louisiana, a 3-year-old male called 'Valerio' escaped from its enclosure, which had a roof in poor condition. It killed four alpacas, an emu and a fox, and injured two other alpacas and a fox, before being captured about an hour after its escape was notified. The killings were apparently the result of a territorial dispute. Its behavior was not deemed to be abnormal for its species.[16][17]
In North America, the jaguar currently ranges from the southern part of the United States in the north, to the southern part of Central America in the south.[3] As recently as 2016, jaguars of Mexican origin[18] have been spotted in Arizona.[19][20][21] As below-mentioned, historical records distributed wider than today, reaching up to at least what is now Colorado and California, or to the Pacific Northwest in the west and Pennsylvania, Ohio and Florida in the east with much less credibility, corresponding to that of known records of the Pleistocene giant jaguar.[22][23]
In 1799, Thomas Jefferson recorded the jaguar as an animal of the Americas.[24] There are multiple verified zoological reports of jaguars in California, two as far north as Monterey in 1814 (Langsdorff) and 1826 (Beechey).[25] 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.[26] The only recorded description of an active jaguar den with breeding adults and kittens in the United States was in the Tehachapi Mountains of California, prior to 1860.[25]
The northernmost record of a jaguar was in 1843 when Rufus Sage, an explorer and experienced observer, recorded jaguars present on the headwaters of the North Platte River 30–50 mi (48–80 km) north of Longs Peak in present-day Colorado. Cabot's 1544 map has a drawing of jaguars ranging over the Pennsylvania and Ohio valleys. Historically, the jaguar was also recorded in far eastern Texas, coastal Louisiana, and the northern parts of Arizona and New Mexico. However, since the 1940s, the jaguar has been limited to vagrants in southern areas of Arizona. Although less reliable than zoological records, Native American artefacts with possible jaguar motifs range from the Pacific Northwest to Pennsylvania and Florida.[27]
The last confirmed jaguar in Texas was shot by rabbit hunter Richard Cuevas in 1948, 3 mi (4.8 km) southeast of Kingsville, Texas. The individual of unknown sex weighed 121 pounds (55 kg) and was 5 feet 11 inches (1.81 m).[28]
By the late 1960s, jaguars were thought to have been extirpated from the United States. A female was shot by a hunter in Arizona's White Mountains in 1963. Arizona outlawed jaguar hunting in 1969, but by then it was too late; no females remained, and over the next 25 years only two males 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 researcher on jaguars, placing webcams which recorded four more Arizona jaguars.[29] No jaguars sighted in Arizona in the last 15 years had been seen since 2006.[30] 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. In 2011, a male jaguar weighing 200 lb (91 kg) 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 mi (48 km) of the border between Mexico and the United States in 2010.[31]
In September 2012, a jaguar was photographed in the Santa Rita Mountains of Arizona, the second such sighting in this region in two years.[32] This jaguar has been photographed numerous times over the past nine months through June 2013.[33] On 3 February 2016, the Center for Biological Diversity released a video of this jaguar – now named El Jefe (Spanish for "The Boss") – roaming the Santa Rita Mountains, about 25 mi (40 km) south of downtown Tucson.[34] El Jefe is the fourth jaguar sighted in the Madrean Sky Islands in southern Arizona and New Mexico over the last 20 years.[6]
On 16 November 2016, a jaguar was spotted in the Dos Cabezas Mountains of Arizona, 60 mi (97 km) from the Mexican border, the northernmost confirmed report of a jaguar in many decades. It is the seventh jaguar to be confirmed in the Southwest since 1996.[21] On 1 December 2016, another male jaguar was photographed on Fort Huachuca also in Arizona.[20] In February 2017, authorities revealed that a third jaguar had been photographed in November 2016 by the Bureau of Land Management in the Dos Cabezas Mountains some 100 km (62 miles) north of the border with Mexico, even more north than the November 2016 sighting.[21] The only picture obtained allowed experts to determine this is a different individual, but it does not reveal its sex; it can be assumed to be male based on all prior observations.
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.[35]
In 2010, however, the Obama Administration reversed the policy of the Bush Administration, 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.[31] On 20 August 2012, the USFWS proposed setting aside 838,232 acres in Arizona and New Mexico — an area larger than Rhode Island — as critical jaguar habitat.[36] On 4 March 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.[37] In September 2015, El Jefe was photographed via camera trap and analysis of his spots confirms that he has been in southeastern Arizona (30 mi (48 km) south of Tucson) since 2011. Jaguars have been present in this region every year since 1997.[38] El Jefe and other males may have originated from a breeding population in Sonora, Mexico, 125 mi (201 km) to the south of Tucson.[39]
The Northern Jaguar Project is a conservation effort on behalf of the jaguar that is headed by an Arizona-based organization of the same name, in conjunction with Mexico's Naturalia. It is focused on protecting the jaguars living near the border between the United States and Mexico. The core of the project is the Northern Jaguar Reserve. The project began in 2003 with the purchase of the 10,000 acre Los Pavos Ranch in northern Mexico, just 125 mi (201 km) south of the border. In 2008 it was expanded to more than double its size when Rancho Zetasora was acquired. Both ranches are remote, difficult to access, and relatively untouched, making them perfect habitat, not just for jaguars, but for many other species as well. The Northern Jaguar Project is the "northernmost location where jaguars, mountain lions, bobcats, and ocelots are all found in the same vicinity", and the park also features a variety of floral habitats as well.[40][41]
The project is also focused on efforts to create a stable jaguar population in Northwestern Mexico. However, its long term aspirations include a return of the jaguar to the Southwestern United States. The potential for such a reintroduction is deemed high, since as much as 30% of Arizona alone is considered to be a suitable habitat for the jaguar.[18]
A 2021 article by several experts in the Wildlife Conservation Society found that there exists substantial areas in both Arizona and New Mexico for jaguars. It also argues that a reintroduction of the cat is not only possible through the cooperation of local residents, conservationists, and wildlife experts, but also could cause a trophic cascade in the local ecosystems, as well as cause a significant increase in ecotourism, similarly to what happened during wolf reintroduction in Yellowstone.[42]
San Bernardino National Wildlife Refuge is close to the proposed border barrier, and since the proposed project would cut through a migration corridor for the jaguar between Mexico and the USA, it may interfere with the migration of Mexican jaguars to the USA, not withstanding other animals.[43][44]
_negra.jpg)
Photograph of a melanistic jaguar in the Museum of La Venta, Villahermosa, Tabasco, southern Mexico
A three-year-old captive jaguar kept at the Belize Zoo, west of Belize City
_(6766731069).jpg)
A melanistic jaguar at Belize Zoo
A captive jaguar in Vara Blanca, Heredia, Costa Rica
A mother about to pick up a cub by the neck at the Stone Zoo, Massachusetts, the United States
The North American jaguar is a jaguar (Panthera onca) population in North America, ranging from the Southwestern United States to Central America . They are most associated to Central and South America. This population has declined over decades and was almost extirpated from the United States by 1960.
Results of morphologic and genetic research failed to find evidence for subspecific differentiation.
This population is also referred to as the "American jaguar" and "Central American jaguar".
