Canada lynx are specialist predators whose welfare and survival are tightly linked to snowshoe hare population cycles, creating boom-bust dynamics that are being disrupted by climate change.
Canada lynx welfare follows the rhythm of hare cycles in ways that are profound and difficult to mitigate. During hare population crashes, lynx kittens starve slowly over weeks as maternal milk production fails and prey is unavailable. Adult lynx in peak condition decline rapidly in body weight and condition during crash years. The physiological stress of starvation is accompanied by increased movement as lynx range further searching for prey, increasing road mortality risk. Climate change disrupts this ancient cycle by altering snowpack conditions that give lynx their specialist advantage over competitors. Trappers targeting lynx during crash years, when stressed animals are more likely to approach traps, compound welfare impacts. Protected trapping seasons during hare crash years are a direct welfare intervention that some jurisdictions have not implemented.