Panthera onca
Population Status Of Jaguars (Panthera Onca) And Pumas (Puma Concolor) In Northeastern Sonora, Mexico, Rosas and Bender
Jaguars are endangered in Mexico and the United States, necessitating careful monitor- ing of population status. We determined minimum numbers of jaguars and sympatric pumas in a small population in northern Sonora, Mexico, the nearest known breeding population to the United States, by photographic captures supplemented by idiosyncratic features of tracks from track surveys (1999-2005). We also developed a discriminant function to differentiate species (jaguar v. puma) and sexes within species, which also aided in individual identification.
5 Videos from Macho B Capture - AZ Game and Fish
Macho B, Arizona's only known long-term resident Jaguar in decades, was killed by Arizona Game and Fish after being captured and radio collared. After Game and Fish realized that something was wrong, Macho B was recaptured and euthanized. After an initial attempt to claim that the capture had nothing to do with Macho B's sudden bad health, it became clear that the stress of capture along with strong tranquilizers caused his subsequent death. Some believe that the euthanasia may not even have been necessary.
Macho B After Tranquilization
Macho B being processed after capture and tranquilization.
Macho B during capture (AZ Game and Fish)
The long-time Arizona resident jaguar nick-named Macho B in a leg snare. Notice the swollen foot, disturbed soil, and obliterated tree trunk. Macho B was in this snare for numerous hours fighting for his life.
Jaguar at El Aribabi, Sonora
2010 camera trap photo of jaguar just south of the Arizona/Sonora border.
Jaguar on Northern Jaguar Reserve
The Northern Jaguar Project preserves habitat for jaguars and other plants and animals. This jaguar's tracks I saw about 35 hours after they were made and followed them up a canyon for more than a mile.
Tracks of jaguar and young in mud of the Rio Bavispe
These fresh jaguar tracks were in the mud where a side canyon let out into the Rio Bavispe above the Yaqui/Aros confluence. The smaller tracks may be young!