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Olson, R.E.; Matzinger, P.J.; Sabor¡o, G.R.; Carazo-Salazar, J.
Macho Uno: a sign of hope for the jaguars of Corcovado National Park, Costa Rica
2019 Cat News (69): 4-6
A long-term camera trap study in Corcovado National Park, Costa Rica documented the presence of a male jaguar _Panthera onca_, appointed Macho Uno, repeatedly in 2008 and 2015-2018. We estimated Macho Uno to be 12-14 years of age, representing one of the oldest recorded wild jaguars. Throughout our study, Macho Uno was highly philopatric, being observed in the same general area of Corcovado National Park each year, and ranged over an area of 25.9 km2. Macho Uno's resident status, small and stable home range area, and relatively short distance movements (3.5-7 km) are good indicators that Macho Uno likely occupies high quality habitat. Amidst concerns regarding the status of jaguars in the park, the resiliency of Macho Uno within the core of Corcovado National Park is an encouraging sign.
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