Research overview: night penning, fladry, and other nonlethal deterrents for pumas

This overview synthesises evidence on nonlethal tools, secure night penning, fladry (flagged lines), turbo-fladry, motion-activated lights and sound, and guard animals, used to protect livestock from pumas and other carnivores in the Americas. It reviews experimental and field studies on each method's effectiveness and durability, noting that night confinement of vulnerable stock is among the most reliable measures while novelty-based deterrents face habituation. The literature emphasises combining tools and matching them to operation type and predator. The survey frames the nonlethal toolkit as central to North and South American conflict management, reflecting growing public and scientific preference for coexistence-oriented alternatives to lethal control, tempered by realism about each tool's limits.