Research overview: is the jaguar a single subspecies?

Historically the jaguar was divided into many subspecies, but molecular evidence supports treating it as essentially one continuous species. This overview reviews the debate, explaining that phylogeographic studies found only modest genetic structure across the jaguar's range, with no clear breaks justifying the eight or more traditional subspecies. It discusses how some regional differentiation exists, particularly across major rivers and between Central and South America, but generally falls short of subspecies-level distinctiveness. The piece connects this to conservation, since viewing the jaguar as a connected metapopulation supports maintaining corridors across its range. It exemplifies the recurring theme that molecular data collapsed inflated felid subspecies lists, here turning a heavily subdivided big cat into a largely monotypic species with conservation managed around connectivity rather than discrete units.