"First videotaped in November 2011, in Arizona’s Whetstone Mountains, El Jefe is among six wild U.S. jaguars documented during the past two decades, all males"............... "If he’s looking for love, in other words, he’ll need to cross the border(back into Mexico)"..............: "There have been no female jaguars recorded in El Norte since a hunter killed the last one in 1963".............. "Panthera onca won U.S. endangered species protection in 1997, but its fate is inextricably tied to Mexico".............. "About 4,000 jaguars are believed to remain in that country, mainly in its southernmost states, where conservation work by Mexican authorities and nonprofit groups is concentrated"............ "The northernmost population has gotten scant official attention, beyond a few incentives for private landowners, so non-governmental organizations are stepping in on both sides of the border"................. “In some ways,” says Jessica Moreno, a biologist with Sky Island Alliance, a Tucson environmental group, “people working for NGOs have an easier time working on behalf of jaguars because they can move forward with less politics, red tape and bureaucracy than government agencies"................However, getting some female Jaguars into the USA may take some time.............."Like female Pumas, female Jaguars stay relatively close to their mothers from one generation to the next, resulting in a painfully slow expansion of territory".............. "(Researchers speculate that) the fastest females may return to the U.S.sky islands (such as the Santa Rita Range) (is in)45 to 70 years, conservatively 60 to 85, and (pessimistically) from 100 to 250 years"......... "(There are) several ranches between the Northern Jaguar Reserve and the (U.S.) border that have volunteered to serve as research sites and protected areas (for prospecting Jaguars)"................. "Working with the U.S.-based Sky Island Alliance and Wildlands Network, along with Sonoran educators and Mexico’s Comisión Nacional de Áreas Naturals Protegidas (a federal park service), (there is hope that) jaguars of both sexes (will) move into the U.S (inside of the next 45 years)"

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=7&cad=rja&uact=8&ved=0ahUKEwigiobroOPOAhWEOiYKHbo0BssQFghIMAY&url=https%3A%2F%2Fwww.hcn.org%2Fissues%2F48.9%2Fthe-tenuous-fate-of-the-southwests-last-jaguars&usg=AFQjCNHPBMBt9v86DJ85B6VWFDTyJzL-zg

The tenuous fate of the Southwest’s last jaguars

U.S. conservation of the endangered big cats depends on their populations in Mexico.