= Jeff A. Horn
{c}
<Jeff A. Horn> is the first author of a 2011 study of free-roaming <cats> using <wildlife radio telemetry> and collar-mounted activity sensors. The team compared 11 owned and 16 unowned <cats> near Champaign-Urbana, measuring <home range>, use of the surrounding landscape and activity over time.<Home Range, Habitat Use, and Activity Patterns of Free-Roaming Domestic Cats by Jeff A. Horn and others>[Abstract and Methods; Journal of Wildlife Management 75, 1177–1185, 2011]{ref}
The owned <cats> had smaller <home ranges>, while the unowned group was more nocturnal and more active overall. Location and activity are different measurements: an animal can occupy a small area yet move frequently within it. Pairing the sensors therefore gave a richer description than either measurement alone. The observed owned/unowned comparison was not a randomized assignment of care, and the operational unowned category should not automatically be equated with every definition of a feral animal.<Home Range, Habitat Use, and Activity Patterns of Free-Roaming Domestic Cats by Jeff A. Horn and others>[Abstract: sample groups, home-range and activity findings]{ref}
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